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| Ferrite Beads, Inductors, Audio and Power Transformers and EMI Filters |
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Sphere Research Corporation 3394 Sunnyside Rd. West Kelowna, BC, Canada V1Z 2V4 Phone: +1 (250) 769-1834 A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES! Just  SCROLL DOWN to see everything! | ||
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  Ferrite Beads, Inductors, Transformers and EMI Filters    Skip the INTRO, Go RIGHT to the CATALOG! These are the stock inductive parts we have on hand, both new and used. There is a wide variety of material, and stock changes constantly. We try and keep a deep stock of commonly used parts, and always have some stange and bizarre items fr interest value.
 NAVIGATION: To make your life easier, and help you find exactly what you want, we have broken the on-line equipment catalogs into smaller sections. Just CLICK on the item you are looking for at the left, to see the matching catalog. Large graphical catalogs are a bit SLOW, so please give them a bit of time to load. The top header of each catalog is largely the same, so don't think you are stuck in one place!
You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST, or FAX to (250) 769-4106. OR, Email your order to Susan  SHIPPING: Preferred and Alternate Methods as of June 4, 2013, CLICK for FULL DETAILS ON OUR FAQ Page. Rates are now changing rapidy, often with little notice to us, so all the data has been transferred to the FAQ page for speedy updating. E-Mail Susan if you want a quote for shipping to other destinations, or for something heavy. Sorry, we can't safely send most individual small parts in a regular letter envelope, they get destroyed by the automated handling equipment. Sometimes we can ship very rugged parts in a small padded envelope by letter post. Ask Susan.There is a packing charge for large or heavy equipment, see the FAQ for details.If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. We keep your active information for ONE YEAR for your convenience.If this is the first time you have dealt with us, you can phone +1 (250) 769-1834 or send it by the email link, as you prefer. We accept VISA/MC, international money order, Paypal (to Susan@Okanagan.net), and bank wire transfer. Please note that there are transaction fees with Paypal and wire transfer payments, the wire transfer fee is frankly horrifying.
 CONDITION: To answer your questions, YES, we completely check and inspect all items, and do not offer any we feel is substandard. These items are new, unused industrial surplus of high quality, often in original manufacturer's packaging. In a few cases, for house numbered parts, we have had to determine the data by test and measurement, and will advise that.
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JUST SCROLL DOWN TO SEE EVERYTHING !| E-mail us Want something? Just CLICK HERE to e-mail us! We accept Visa/MC for fast order processing. |
We have all kinds of inductive parts, from axial chokes and ferrite EMI suppressors to SMD parts, isolation transformers and toriod power transformers. EMAIL if you need something you don't see! |
Clamp on Ferrite Beads In order by SIZE Click for bigger PICK! |
W50842-001 (rev. F) Snap-on RFI Ferrite Suppressors....Fits wires/bundles up to 0.260 inch in diameter, easily opens and snaps shut, fantastic for quenching EMI/RFI emissions from already existing equipment, power cords, cables, and connections. Type QBS-374 (0113-103), very efficient and inexpensive emission solution. Have 720 pieces, $3 each, 10 for $28. |
 Click for bigger PICK! |
Clamp-on Fair Rite Snap-It RFI Ferrite Suppressors....Fits wires/bundles up to 0.250 inch in diameter, easily opens and snaps shut, fantastic for quenching EMI/RFI emissions from already existing equipment, power cords, cables, and connections. Type 43 material, approx. 225 ohms impedance at 100Mhz, very efficient and inexpensive emission solution. Just got more!. LOC: IND20Have 250 pieces, $4 each, 10 for $38. |
Loose Ferrite Beads In order by SIZE| Description | Price Each | ||
  Neosid F100B Beads |
 CLICK to see NeosidNeosid F100B Beads High quality RF beads made in high frequency F100B material, equivalent to Philips 4E1, EPCOS U17, ISKRA 2E, and TDK K8 ferrite. Typically a single bead is rated for 20 to 50 ohms from 30 to 200Mhz, color coded GREEN. Factory boxed in 3,500 and 5,000 count boxes, or available in smaller quantities. Full details on the Neosid site, size is D3,5x1,3x3. Excellent for oscillation suppression, interference reduction and RFI/EMI suppression. Very high quality parts.  Bead on a 2W resistor, showing good lead clearance LOC:IND03 |
NEW 46,000 pcs. |
 20/$1 100/$4 3,500/$105 5,000/$145 |
 CLICK for bigger PIC! TDK HF70RH12X15X7.3E Large Bore Bead |
 CLICK to visit TDK
Large Bore Ferrite Beads 15mm long, 12mm wide, 7.3mm hole, great for large cable emission suppression, baluns, etc. Packed in factory styrofoam trays of 100 pcs, to avoid chipping. Fits neatly over 1/4" cables of all kinds. LOC:IND10 |
NEW 1200 pcs. |
2/$1 100/$45 |
STE 28B0625-100 Large Bore Bead |
 CLICK to see StewardLarge Bore Ferrite Beads 1 inch by .62 inch with 0.31 inch bore, great for large cable emission suppression, baluns, etc. Packed in trays to avoid chipping. Impedance of 280 Ohms at 100Mhz, 400 Ohms at 300Mhz. Fits neatly over 1/4" cables of all kinds. LOC:IND35/WSS |
NEW 60 pcs. |
$2 |
| E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
Ferrite Beads with Leads In order by SIZE| Description | Price Each | ||
 CLICK for bigger PIC! Steward HZ0805E601R-00 SMD Beads |
CLICK to see Steward
Steward SMD BeadsHigh quality 0805 SMD Beads, taped and reeled. Measures 0.3uH on our GR Digibridge, factory data is nominal impedance of 600 ohms at 100Mhz, 0.3 ohms DCR, 0.5A rated current. Usable to 1Ghz, full factory data sheet is HERE in PDF form. Taped and reeled in batches of 4000, or by the foot (approx. 72/foot). Excellent DC power decoupling choke when used with a shunt capacitor. These are standard leaded parts, the -10 data sheet is for RoHS equivalent. LOC:IND102 / WSS |
NEW 14,000 pcs. |
4000/$195 $3/foot |
 TDK CB50-1210 / HF50ACB322513-T SMD Beads |
 CLICK to see TDK ComponentsTDK SMD Beads High quality 3225 SMD Beads, taped and reeled, measure 0.3uH on our Digibridge. Factory data is nominal impedance of 60 ohms at 100Mhz, 0.3 ohms DCR, 0.4A rated current. Full factory data sheet is HERE in PDF form. Taped and reeled in batches of 2000, or by the foot (approx. 72/foot). Excellent DC power decoupling choke when used with a shunt capacitor. These are RoHS compliant. LOC:IND102 / WSS |
NEW 10,000 pcs. |
2000/$195 $3/foot |
 Steward 28J0138-11R Beads |
CLICK to see Steward Steward Dual Radial Beads High quality leaded Dual Radial Mounted RF beads, taped and reeled. Measures 2.7uH on our GR Digibridge, center-to-center lead distance is 0.15 inches, 0.01 ohms DCR, 5A rated current. Impedance is 143 ohms typical at 100Mhz, usable to 1Ghz, full factory data sheet is HERE in PDF form. Taped and reeled in batches of 1800. Excellent DC power decoupling choke when used with a shunt capacitor. LOC:IND100 / WSS |
NEW 10,200 pcs. |
5/$1 1800/$295 $6/foot |
 CLICK for bigger PIC! ABC Taiwan WB0610301YSA Wideband Beads |
ABC Taiwan CLICK to see ABC Taiwan ABC Taiwan NM1-WB-003 Wideband Beads High quality leaded 6 hole, 3 turn RF beads in radial moutning style, made in high frequency material. Measures 21.3uH on our GR Digibridge, and can be un-wound a half-turn to make an axial 2.5 turn part. Impedance is 720 ohms minimum at 80Mhz test frequency, still over 100 ohms at 1Ghz. -40C to +105C rated temperature, very rugged part. Factory boxed in 3000 count boxes, 200 count bags, or available in smaller quantities. Full details on the ABC Taiwan site. Excellent for decoupling, oscillation suppression, interference reduction and RFI/EMI suppression. Another box view HERE. Very high quality parts, easily modified and re-wound for many applications! Like later p/n WB0610721YL. LOC:IND WB A/B / WSS2 |
NEW 24,000 pcs. |
4/$1 200/$40 3000/$390 |
 ABC Taiwan WB0610301YSA Wideband Beads |
ABC Taiwan CLICK to see ABC Taiwan ABC Taiwan WB0610301YSA Wideband Beads High quality leaded 6 hole, 1.5 turn RF beads, made in high frequency material. Measures 7uH on our Tek LC130, if the long leads are re-threaded for one more 1/2 turn each, the inductance is 14uH. Impedance is 300 ohms minimum at 120Mhz test frequency, still over 100 ohms at 1Ghz. -40C to +105C rated temperature, very rugged part. Factory boxed in 200 count boxes, or available in smaller quantities. Full details on the ABC Taiwan site. Excellent for decoupling, oscillation suppression, interference reduction and RFI/EMI suppression. Very high quality parts, easily modified and re-wound for many applications! LOC:IND03 |
NEW 1,600 pcs. |
4/$1 200/$40 |
  CLICK for bigger PIC! TDK ACA5045M4-550-T 155S0077 |
CLICK to visit TDK
4 Line SMD EMI Ferrite Filter Compact 4 line SMD ferrite bead structure, ideal for suppressing emissions on data lines and other complex layouts. Each part does 4 parallel lines. Full reels of 1000 pieces available. Ex-Apple Computer parts.  LOC:IND01 |
NEW 5000 pcs. |
1000/$45 |
 CLICK for bigger PIC! ACT FPC0810-3L-8A |
3 Line SMD EMI Ferrite Power Filter Large 3 line SMD ferrite bead structure, ideal for suppressing emissions and RF noise on power lines at high currents (to 8A). Each part does 3 parallel lines. Taped/reeled parts. 0.33 in. x 0.43 in. by 0.27 in. high, power lines on 0.1 inch centers. Perfect for gnd/+5/+12V power filtering and similar applications. LOC:IND34/WSS |
NEW 500 pcs. |
$2 ea. 10/$15 100/$95 |
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Inductors/Chokes In order by INDUCTANCE/CURRENT| Description | Price Each | ||
Pulse Engineering PG0123 |
 Pulse Engineering CLICK to Visit! 0.49uH (at full current), 48A Power Toroid Inductor Very high quality compact choke for post-filtering of switching regulators and similar applications (0.86uH at 0Adc), 0.85 milli-Ohms DCR. 0.807in/20.5mm x 0.413in/10.5mm, leads on 0.35in/9mm centers. This is a hard part to source, but very useful for transient RF suppression on switchers. Factory Data sheet is HERE in PDF form. Factory boxed in trays of 70. LOC:IND44/44A/WSS |
NEW 280 pcs. |
$1 Each $65/70 |
Pulse Engineering PG0266 |
Pulse Engineering CLICK to Visit! 0.7uH (+/-20%), 25A Power Cube Inductor Very high quality compact choke for post-filtering of switching regulators and similar applications. 12.7mm x 12.7mm by 8.6mm high, leads on 15mm centers. This is a hard part to source, but very useful for transient RF suppression on switchers. Factory boxed in trays of 120. LOC:IND44/44A/WSS |
NEW 2,800 pcs. |
$1 Each $85/120 |
 CLICK for bigger PIC! Sumida EP169-1R8I |
 Sumida CLICK to Visit! 1.8uH (+/-25%), 17A Power Inductor (Pin Type) Very high quality compact choke for post-filtering of switching regulators and similar applications. 16.7mm x 16.7mm by 9.5mm high, leads on 9mm centers, 1.1 Ohms Typ. DCR, 17A rating (+40C rise). Factory Data sheet is HERE. This is a hard part to source, but very useful for transient RF suppression on switchers. Factory boxed in sets of 150. These are leaded parts, the data sheet is for the later NP RoHS version. LOC:IND102 / WSS |
NEW 600 pcs. |
$1 Each $95/150 |
Pulse Engineering P0889 |
Pulse Engineering CLICK to Visit! 5uH Toroid Inductor Very high quality SMD mounting toroid inductor, measures 5uH on our digibridge at 0ADC, appears to be rated for about 15A or better. These were in the same stock package as the PE-53700 (identical looking parts), and appear to be functional equivalents of slightly earlier design. Good for post filtering of high current switcher outputs. Not RoHS compliant. Packed in factory trays. LOC:IND102 / WSS |
NEW 68 pcs. |
$4 each |
Pulse Engineering PE-53700 |
Pulse Engineering CLICK to Visit! 5.2uH Toroid Inductor Very high quality SMD mounting toroid inductor, measures 10uH on our digibridge at 0ADC, rated for about 15.4A, 0.0053 Ohms DCR. These were in the same stock package as the P0889 (identical looking parts), and appear to be functional equivalents of slightly later design. Good for post filtering of high current switcher outputs. Not RoHS compliant. Packed in factory trays. Usable to 1Mhz.  Download the PDF Datsheet HERE.LOC:IND102 / WSS |
NEW 18 pcs. |
$4 each |
6uH Toroid |
6uH Radial Toroid Inductor 0.5 inch OD core with 10 turns (0.045" diameter wire), measures 6uH at 0ADC, looks to be good for about 5ADC. Ideal as switcher post filter choke for spike elimination. Commodity parts, some have long leads, some clipped short for PC insertion. Core color is yellow/white. LOC:IND02 |
NEW 150 pcs. |
$1 Each |
 
DALE IH-15 10UH |
 Dale/Vishay CLICK to Visit! 10uH (10%) High Current Radial Lead Inductor 1.7 inch long epoxy sealed inductor, 2 bottom pins on 1.5 inch centers. 10uH, 20.0ADC, 10% rated. Very high quality parts, hard to find in such a high current rating, rise of 50C for specified current. 1 inch long leads allow either point-to-point wiring or PCB mounting. Full factory data sheert HERE in PDF form. LOC:IND33/WSS |
NEW 80 pcs. |
$6 Each |
 
Pulse Engineering P1962 |
Pulse Engineering CLICK to Visit! Triple 11uH Toroid Inductor/Transformer Very high quality SMD mounting toroid inductor, 3 windings, each 11uH, 0ADC, appears to be rated for about 0.5A, winding resistance 0.1 ohms max, usuable to at leaast 100KHz. Two windings in series (correctly phased) on the same core gives 4 times the inductance (44uH). Can be used as multi-output switcher inductors, chokes, transfomers, common mode choke or filter, etc. Very useful little part. Taped and reeled new parts in lots of 150. Download the PDF Datsheet HERE.LOC:P1962/WSS |
NEW 1,500 pcs. |
$1 Each $99/150 |
 DALE IHM-2 15UH |
 CLICK for bigger PIC! Dale/Vishay CLICK to Visit! 15uH Radial PC Inductor 1 inch long epoxy sealed inductor, 2 bottom pins on 1/2 inch centers. 15uH, 8.5ADC, 10%, 0.022DCR rated. Very high quality parts, factory tubes of 20. LOC:WSS2-BIN-IND15 |
NEW 340 pcs. |
$5 Each 20/$80 |
 DALE IHM-1 47UH |
 Dale/Vishay CLICK to Visit! 47uH Radial PC Inductor 1 inch long epoxy sealed inductor, 2 bottom pins on 1/2 inch centers. 47uH, 4.0ADC, 10% rated. Very high quality parts. LOC:IND02 |
NEW 110 pcs. |
$5 Each |
+ 82uH winding #1 -  - 82uH winding #2 + MCE (hp) 9140-1624 |
 MCE CLICK to Visit!81uH / 324uH Dual PC Mounting Inductor Potcore style inductor made by MCE for hp (hp p/n 9140-1625), can be used as a common mode DC filter choke (Ok to 1.5ADC), as a single 81uH or single 324uH (windings in series) inductor or as a single 81uH inductor in a switching regulator with the 2nd isolated winding for an additional output in any polarity. Very low DCR. A very useful part, and we have a large quantity available. 3B7 ferrite, the construction is good to at least 1Mhz for switching power supplies. Very high quality parts, MCE makes outstanding magnetics. Each side of the inductor is one winding (fully isolated), the phasing is reversed from side to side between the windings, jumper straight up and down at the left for series windings, connect to the right side pins for the 324uH winding. It looks like the side spring clips can be removed, the pot core opened, and windings easily altered for making your own custom inductor, there is even a spare pin on the PC header for an additional connection like a tapped winding. LOC:IND30/WSS |
NEW 300 pcs. |
$2 Each  |
  CR-24B 250V/15A/65uH |
 CLICK to visit Delta Electronics 65uH Heatsunk Toroidal Inductor Single winding, flying Faston leads (male/female, can be inserted into existing wiring), stud mounting shielded case. Rated 15A/250VAC, measures 65uH and 0.03 ohms DCR. Toroid is mounted in a thermally conductive insulating cup, and then inside an aluminum, heatsinked case. Great for AC line filters of all kinds, and as a noise suppressor on SCR/TRIAC lamp dimmers and speed controls. Note that it has no CSA/UL listing. No longer shown in the Delta catalog. 
LOC:IND03 |
NEW 35 pcs. |
$10 each |
  CTX00-11899 |
 CLICK to visit!100uH SMD Toroid Inductor Cooper-Bussmann Semi-custom inductors, single winding, SMD plastic enclosed cube w/4 terminals (inductor is the 2 tabs on the side with the phasing dot, the others are for anchoring only). Rated 100uH at 0.6ADC, 0.095 ohms resistance, 0DCA inductance measures approx. 161uH on our GR Digibridge. Body length is approx. 0.4 in x 0.36 in, by 0.31 in high. Commodity parts, good decoupling choke for small assemblies or in lower current switchers. Come in factory plates of 100 pcs. LOC:WSS2 FACT BOXES |
NEW 3,200 pcs. |
3/$1 100/$29 |
 CLICK for bigger PIC! AL4010-101K |
100uH Axial Inductor Single winding, axial leads, heat shrink sleeve. Rated 100uH at 0.6ADC, 0.29-0.32 ohms resistance. Body length is 0.55 inches, has 3/4 inch tinned leads. Commodity parts, good decoupling choke for small assemblies. LOC:IND01 |
NEW 1000 pcs. |
2/$1 100/$45 |
 TC5051-101K-TH-065 Toroid |
100uH Toroidal Inductor Single winding, radial PC leads, unencapsulated. Rated 100uH at 1ADC, 0.08 ohms resistance. Diameter is 0.62 inches, has bottom centered PC pins at 0.6 inch spacing, outer edge has fiberglass tape wrap. Commodity parts, good decoupling choke for small assemblies. LOC:IND01 |
NEW 750 pcs. |
$1 Each |
 CLICK for bigger PIC! SL0912RA-101J1R5-2 |
CLICK to visit TDK
100uH Radial Inductor 
Taped/reeled radial leads. Rated 100uH at 1.5ADC, 5%, measured 0.14 ohms resistance. Very nice, compact medium current part, with pre-installed plastic insulating spacer underneath, 0.20 inch lead spacing. Boxed reels of 500. Full factory data on similar larger body size 1215 parts is HERE in PDF form. LOC:IND101 / WSS |
NEW 1496 pcs. |
$1.50 Each $450/500 |
 RL-2227-3-100 |
 CLICK to visit Renco
100uH Axial Inductor Axial leads, with insulating heat shrink sleeve. Rated 100uH at 3ADC, 0.075 ohms resistance. Very nice higher current part with long leads, packed in factory trays. Full factory data is HERE in PDF form. RoHS compliant parts. LOC:IND101 / WSS |
NEW 250 pcs. |
$4 Each |
DALE IHM-2 100UH |
Dale/Vishay CLICK to Visit! 100uH Radial PC Inductor 1 inch long epoxy sealed inductor, 2 bottom pins on 1/2 inch centers. 100uH, 3.3ADC, 10%, 0.140 DCR rated. Very high quality parts, factory tubes. LOC:IND02 |
NEW Last 40 pcs. |
$5 Each |
 Pico 433123 and PK356-58 |
 PICO ElectronicsCLICK to visit! 25uH/100uH Dual Winding Inductor High quality dual winding inductor for switching power supplies, filters, etc. Can be configured as 2 ea. 50uH/1.95ADC chokes, a 25uH/3.9ADC choke, or a 100uH/1.95ADC choke. Very useful filter component. Two types, PICO 43323, and PK356-58, both mil spec TF5S04ZZ (M27/356-58). 1/2 inch diameter potted toroid, 4 radial leads. Packed in factory bulk boxes. Still a current stock part, price is over $22. LOC:IND01 |
NEW 120 ea. |
$8 Each |
29525 |
200uH Radial PC Inductor Simple rod wound 200uH at 0ADC coil, looks to be good for about 1/2ADC, offset radial PC leads, heashrink sleeve cover, 7/8 inch over-all length. Commodity part, no original data. LOC:IND02 |
NEW 250 pcs. |
$1 Each |
 CLICK for bigger PIC! TRW SRA-200 |
TRW 200uH/160uH Dual winding Toroidal Inductor Can be configured as series or parallel windings, or could be used as a 1:1 transformer, capable of very high current. Rated 200uH at 0ADC, 160uH at 3ADC (series connected for maximum inductance), 0.12 ohms resistance. Diameter is 0.875 inches, has center mounting hole, 4 large PC pins. Mil M27/287-05, max. 50WV between windings, full data printed on every part. Very high quality parts, individually boxed. LOC:IND01 |
NEW 15 pcs. |
$10 Each |
  TOKO 646QE-221N |
 TOKOCLICK to Visit! 220uH SMD Inductor Very high quality SMD parts, great for small DC:DC switchers, full reel. LOC:IND01 |
NEW SORRY, SOLD |
2/$1 $249/1K |
  Pulse Engineering P0286 |
Pulse Engineering CLICK to Visit! 270uH Toroid Inductor Very high quality PC mounting toroid inductor, 270uH, 0ADC, appears to be rated for about 2.5A, 0.09 Ohms DCR. LOC:IND04/FACTBOX WSS |
NEW 120 pcs. |
$4 Each |
 UTC SRB-520 |
 520uH/416uH Toroidal Inductor Single winding, capable of very high current. Rated 520uH at 0ADC, 416uH at 3ADC, 0.2 ohms resistance. Diameter is 1.2 inches, has center mounting hole, 2 large PC pins. Mil M27/288-05, max. Full data printed on every part. Very high quality parts, individually boxed. LOC:IND01 |
NEW 9 pcs. |
$15 Each |
 CTRL 1256-5 560 |
560uH Bobbin Inductor Single winding, capable of very high current. Measures 560uH at 0ADC, 0.1 ohms resistance. Diameter is 1.5 inches, has center mounting hole, 2 large PC pins. Commodity part, easily unwound or modified, rated for 0.9ADC. LOC:IND01 |
NEW 40 pcs. |
$5 Each |
ELYTONE ET-52215 |
 ELYTONE CLICK to Visit! 1000uH/470uH Toroidal Inductor Single winding with PCB cup mount (3 leads, one dummy), capable of very high current. Rated 1000uH at 0ADC (our measurment was 750uH), 470uH at 3.5ADC, 0.13 ohms resistance. Cup width is 1.5 inches, 3 PC pins. All detailed data is at the web site, still current production part. Since the core is exposed, it can also be used as a current sampling transformer by passing an AC current carrying wire thrugh it, or as the base of a multi-winding part by adding more windings. Handy experimenter's part. LOC:IND02 |
NEW 45 pcs. |
$4 Each |
Hammond 1530C102 |
Hammond CLICK to Visit! 1000uH Axial Inductor Factory boxed (with data), axial lead RF choke by Hammond, common RF control decoupling choke. LOC:IND02 |
NEW 15 pcs. |
$3 Each |
 Torotel PFC48-7 |
 Torotel CLICK to visit! 6 mH Toroidal Inductor Single winding. Rated 6 mH, 1.9 ohms resistance, probably good for at least 100mA. Diameter is 1.06 inches, has center mounting hole, 2 PC pins. Full data printed on every part. Very high quality parts, bulk packed with folded leads. LOC:IND01 |
NEW 10 pcs. |
$9 Each |
| E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
AC Power Transformers In order by VOLTAGE/CURRENT| Description | Price Each | ||||||||||||||
 Coil Trans Corp. 60T2626 |
Coil Trans Corporation 115V Primary, 8V/0.25A Secondary Transformer Chassis mounting with flying leads for the secondary, and Fast-On connectors for the primary. Great for 5VDC supply based projects, clocks, etc. High quality isolated/split bobbin design, UL listed, US made. LOC:INDSH1 |
NEW 35 |
$4 ea. Each 3/$10 |
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 CLICK for bigger PIC! 
Signal Transformer PC-2-1633 (DPC-12-70) |
Signal Transformer (click to visit) Type PC-2-1633 (DPC-12-70) 1VA, Dual 115V Primary, Dual 6V/70ma Secondary PC Mounting Transformer Very nice for small solid state/op amp projects with an internal power supply, can be used as two windings, in parallel for twice the current (6V/140ma), or in series for twice the voltage (12V/70ma). Approx. 1 inch by 1.5 inch foot print. Made in USA, UL/CSA listed. Exact same part as stock signal transformer (now Bel) item DPC-12-70, was done with custom test for one customer, and given this number. Full data is HERE. LOC:TRA02 |
NEW 25 |
$4 ea. Each 3/$10 |
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 CLICK for bigger PIC! Signal Transformer ST-2-20 |
Signal Transformer (click to visit) Type ST-2-20 
1.1VA, Single 115V Primary, Dual 10V/55ma Secondary PC Mounting Transformer Very nice for small solid state/op amp projects with an internal power supply, can be used as two windings, in parallel for twice the current (10V/110ma), or in series for twice the voltage (20VCT/55ma). Approx. 1.37 inch by 1.12 inch foot print. Made in USA, UL/CSA listed. A stock signal transformer (now Bel) item ST-2-20. Full data is HERE. LOC:TRA10/WSS |
NEW 99 |
$4 ea. Each 3/$10 |
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Triad F6-12 |
 Triad, CLICK to visit115 Primary, 12.6VCT/2.5A Secondary Transformer Chassis mounting with Faston connectors, designed with a split bobbin for maximum isolation. Ideal for tube projects, as it can run both 6.3V and 12.6V filaments, very hard to find now. LOC: SHLF |
NEW 34 |
$11 ea. Each |
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  MCI 4-44-5020 |
 (click to visit)MCI 4-44-5020 
20VCT (or dual 10V) at 0.5A, Dual 115V/230V Primary, PC Mounting TransformerVery nice for small solid state/op amp projects with an internal power supply, or to power two floating digital meters, etc. 1 7/8 by 1 9/16 inches, and 1 3/8 inches high. Can be used as two windings, in parallel for twice the current (10V/1A), or in series for twice the voltage (20VCT/500ma). UL/CSA/TUV listed. A stock MCI transformer. 
Bottom View HERE. Top View HERE.
LOC:IND20/21/WSS |
NEW 120 |
$9 ea. Each |
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  PCI 11188-102 |
PCI 11188-102 30VCT (or dual 15V) at 1A, Dual 115V/230V Primary, Chassis Mounting Transformer Very nice custom made part for power supply projects. Can be used as two isolated secondary windings, in parallel (A1 to B1, A2 to B2) for twice the current (15V/2A), or in series (A2 to B1) for twice the voltage (30VCT/1A). The windings are ~18V/36V unloaded, 15V under 1A load. There are no terminal markings, and the transformer is pre-wired with a cable (for 230V operation). For 115V operation, connect primaries in parallel (A1 to B1, A2 to B2, 115V to A1 & A2), for 230V in series, (A2 to B1, 230V to A1 & B2)) Connections relative to the side view shown, with colors to match the wire currently connected, are:
LOC:TRA20/20A/WSS2 |
NEW 29 |
$14 ea. Each |
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 CLICK for bigger PIC! JARD 5041C |
JARD JARD Magnetics CLICK to visit! 50W 24V Power Transformer with universal primary Chassis mounting with flying leads. Selectable primary (120V/208V/240V/480V) and 50/60Hz operation, with built in secondary overload breaker, class 2 transformer. UL and Canadian UL listed. Very good quality, HEAVY, still current production, factory boxed.  LOC:WSS/FACTBOX |
NEW 14 pcs. |
$26 ea. Each |
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 Magnetek F-345X |
 Magnetek/Triad115/230VAC Dual Primary, 24VCT/1A Secondary Transformer Chassis mounting with flying leads. Great for OpAmp dual supply based projects, and 24V supplies. LOC:TRA01 |
NEW 19 |
$8 ea. Each |
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 CLICK for bigger PIC! Magnetek F-124X |
 Magnetek/Triad117VAC Primary, 28VCT/0.8A Secondary Transformer Chassis mounting with flying leads. Great for OpAmp dual supply based projects, and 28V supplies. LOC:TRA05 |
NEW 19 |
$8 ea. Each |
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 CLICK for bigger PIC! Triad / Magnetek F-333P |
 Magnetek/Triad115/230VAC Dual Primary, 30VCT/0.05A Secondary Transformer PCB Mounting. Great for OpAmp dual supply based projects, and 28V supplies. LOC:TRA10/WSS |
NEW 50 |
$6 ea. Each |
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STANCOR P8611 |
 Stancor CLICK to visit! 117VAC Primary, 36VCT/135mA Secondary Transformer Chassis mounting with flying leads. Great for OpAmp dual supply based projects. LOC:INDSH1 |
NEW 9 |
$6 ea. Each |
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 CLICK for bigger PIC!  CLICK for bigger PIC! SARTRON 1370-011 Custom 150 Watt Power Transformer |
 Sartron, CLICK to visit! Sartron model 1370-011 Custom 150 Watt Power Transformer Universal Primary (4 taps, 100, 120, 220, 240 with shrouded Fast-On connections) Power Transformer with 4 center-tapped secondary coils. Secondary leads are 7.5 in. long with a 12 pin connector on the end. Measures 3.75 in. H X 3 in. W X 3.5 in D. Unit is marked 1370-011 Sartron 7456, high quality US made transformer. Shipping weight is 5.3 pounds, TOP VIEW HERE. Secondaries: 30V CT 2.0A, 48V CT 1.0A, 30V CT 500mA, and 18V CT 500mA. Fantastic foundation for a universal shop power supply, or a medium powered solid state amplifier/pre-amp. Chassis bracket mounting with flying leads (We DO have the mating PCB Molex connector, $6 each with transfomer ONLY). Limited quantity, don't miss this! LOC:INDSH1 |
NEW 100 |
$15 ea. Each |
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 CLICK for biger PIC! 
CTECH 12376-B Toroid 3022 |
115VAC Primary, 56VCT / 750mA Secondary Transformer These toroids were custom built for power supplies, tape wrapped with flying leads. 3 inch diameter core, 1 1/4 inches tall, US made. Shipping weight 0.8kg.Mounting kit available, $2. Caution, a metal bolt passing through the toroid is a turn of wire! Primary: Leads 1 and 2 Operating voltage range 103.5 to 126.5 VRMS Nominal operating voltage 115 VRMS Operating frequency range 48 to 62 Hz Nominal operating frequency 60 Hz Nominal D.C. resistance 15.5 Ohms D.C. resistance range 13.0 ohms to 18.0 ohms Secondary: Leads 3, 4, 5 and 6 Leads 4 and 5 are tied common to create CT or could be left floating No load voltage 64.4 VRMS CT maximum Full load voltage 56.0 VRMS CT minimum with full load current from secondary Full load current 750 mA 100% duty cycle Nominal D.C. resistance 4.0 ohms D.C. resistance range 3.4 ohms to 4.6 ohms Leads coming out of the transformer are 18 AWG LOC:SH1 |
NEW 19 |
$19 ea. Each |
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 CLICK for bigger PIC! 
CTECH 12497 Toroid 1355-C |
 115VAC Primary, 110V / 870mA Secondary Transformer These toroids were custom built for power supplies, tape wrapped with flying leads. 3.5 inch diameter core, 1 3/4 inches tall, US Made. Shipping weight 1.5kg.Mounting kit available, $3. Caution, a metal bolt passing through the toroid is a turn of wire! 12497-Data Primary: Leads 1 and 2 Operating voltage range 103.5 to 126.5 VRMS Nominal operating voltage 115 VRMS Operating frequency range 48 to 62 Hz Nominal operating frequency 60 Hz Secondary: Leads 3 and 4 No load voltage 124.6 VRMS Full load voltage 110.2 VRMS Full load current 870 mA ARMS 100% duty cycle Lead 5 is an electrostatic shield This toroid also has a Mu metal band around its perimeter Leads coming out of the transformer are 18 AWG LOC:SH1 |
NEW 7 |
$22 ea. Each |
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 CLICK for bigger PIC! 
CTECH 12375-B Toroid 3021-B |
115VAC Primary, Multiple 17VCT / 7.5A + 18VCT / 1.5A + 36VCT / 1.5A Secondary Transformer These toroids were custom built for power supplies, tape wrapped with flying leads. 4 inch diameter core, 2 inches tall, US Made. Shipping weight 2.5kg.Mounting kit available, $3. Caution, a metal bolt passing through the toroid is a turn of wire! 12375-Data Primary: Leads 1 and 2 Operating voltage range 103.5 to 126.5 VRMS Nominal operating voltage 115 VRMS Operating frequency range 48 to 62 Hz Nominal operating frequency 60 Hz Secondary A, B: Leads 3, 4, 5 and 6 Leads 4 and 5 are tied common to create CT or could be left floating No load voltage 19.0 VRMS CT maximum Full load voltage 17.0 VRMS CT minimum with full load current from secondaries A, B, C, D, E, and F. Full load current 7.5 ARMS 50% duty cycle, composite all windings. Secondary C, D: Leads 7, 8, 9 and 10 Leads 8 and 9 are tied common to create CT or could be left floating No load voltage 20.0 VRMS CT maximum Full load voltage 18.0 VRMS CT minimum with full load current from secondaries A, B, C, D, E, and F. Full load current 1.5 ARMS 100% duty cycle Secondary E, F: Leads 11, 12, 13 and 14 Leads 12 and 13 are tied common to create CT or could be left floating No load voltage 40.0 VRMS CT maximum Full load voltage 36.0 VRMS CT minimum with full load current from secondaries A, B, C, D, E, and F. Full load current 1.5 ARMS 100% duty cycle Leads coming out of the transformer are 18 AWG LOC:SH1 |
NEW 18 |
$28 ea. Each |
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UTC R44 |
 115/230V AutoTransformer Chassis mounting with socket and line cord. Can be used as a step-up or down transformer, 250 watt rating. Very good quality, HEAVY, NOT AN ISOLATION transformer, only an autotransformer. LOC:INDSH1 |
NEW 2 |
$29 ea. Each |
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TRIAD N-66A |
 Triad Magnetics CLICK to visit! 115/230V Isolation Transformer Chassis mounting with flying leads. Selectable primary (115/230V), and 115VAC, 2.17A secondary, plus shield wire. Can be used as a step-up or down full isolation transformer, or a 115VAC to dual 115VAC isolation transformer. Very good quality, HEAVY, still current production. Unit just arrived is black, later production. LOC:INDSH1 |
NEW Just 1 |
$69 ea. Each |
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 Power Transformer Amplimo 51013 |
 Amplimo 51013 Power Transformer Amplimo 51013New factory boxed AC Power Transformers, with 220V primary. Very high quality toroid transformers. Can be used on 110VAC with half the output voltage, includes mounting plate and insulator. Low radiated magnetic interference. Windings: Primary, 220V Secondary 1 15V/5.33A Secondary 2 15V/5.33A Rated for 50Hz, so will be very efficient at 60Hz, and can be run at 110V, with half the voltage output. | 6 Pcs. |
$36 Each |
| E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
Audio Transformers In order by IMPEDANCE| Description | Price Each | ||
 Triad/Utrad SPR-70 |
Triad Magnetics CLICK to visit! Triad 600 ohm to 600 ohm Line Transformer Very high quality sealed audio transformers with gold pins with 100Hz to 20KHz response, at least 50mW power handling. Having some trouble getting complete data, the SP70 is still in production at Triad (smaller core, accepts 3ma DC unblance), and this part is shown in stock (at $46 each), but haven't gotten the full data yet. Still current production, very handy for line isolation, etc. LOC:INDSH1 |
NEW 10 |
$12 ea. Each |
| Description | Price Each | ||
 CLICK for bigger PIC! Tamura TTC-09 |
 CLICK to visit600CT ohm to 600CT ohm Line Transformer Audio Line transformer, PC mounting, +7dBm max. level, 1.5KVrms winding insulation rating, very low loss and distortion, full factory datasheet is HERE in PDF form. Packed in tubes of 20 units. NOT designed for DC blocking. UL/CSA rated parts. LOC: IND33 |
NEW 500 |
$2.50 Each 20/$39 |
| Description | Price Each | ||
 Integrity Technology G8-0-1 |
 Integrity Technology 600 ohm to 600 ohm Line Transformer Audio line coupling transformer, PC mounting, looks to be at least 50mW power handling. Nice audio utility coupling transformer, windings measure 101 ohms (marked by orange dot) and 136 ohms. LOC:INDSH1 |
NEW 480 |
$1.50 Each 100/$99 |
| Description | Price Each | ||
 OP AMP LABS T-25 |
 OP AMP LABS600 ohm to 600 ohm Line Transformer Very high quality plug in shielded audio transformers (gold pins, fits standard Octal tube socket) with 20Hz to 20KHz (1dB) response, and +24dBm power handling. Low distorion (0.25%), has shield connection for housing. Still current production, very handy for making your own mixing consoles, etc. Spares stock, some marks from storage and use. LOC:INDSH1 |
 TESTED1 |
$25 ea. Each |
| Description | Price Each | ||
 CLICK for bigger PIC! TRW H-9 |
  TRW150/600 ohm to 1M (grid) Transformer Mil quality MIL-T-27B shielded audio line/grid coupling transformer, chassis mounting, +10dBm max. level. Very nice quality, great for tube or FET experiments. LOC:TRA05/WSS |
NEW 12 |
$19 Each |
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Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
EMI/RFI FILTERS In order by SIZE CLICK for bigger PIC! DSS306-55FZ103N100 DSS6NZ82A103Q55B Ferrite Filter |
  Murata Ferrite/Capacitor EMIFIL filter, arranged as a series bead, shunt capacitor (.01uF/100V) and a series bead. Excellent low pass filter for control or power lines in and out of RF assemblies, over 20dB inserion loss above 7Mhz, 60dB at 60Mhz. Bagged in lots of 250, or loose. Very useful component, high performance filter. New global part number is: DSS6NZ82A103Q55B. CLICK HERE for factory data on this part. NEW 2,500 on hand$95/250, $0.50 each |
CFI06B1H271MF CFI 271 Ferrite Filter |
  Samwha Ferrite/Capacitor Digitial Signal Noise Filter, arranged as a series bead, shunt capacitor (270pF/50V) and a series bead. Excellent low pass filter for control or power lines (up to 1A) in and out of RF assemblies, to and from computer peripherals, etc. Epoxy coated, radio design (.1" centers), taped for production. Insertion loss over 20dB above 80Mhz. Boxed in ammo packs of 2500, or cut tape to suit. Very useful component, high performance filter that can be used on data lines and for power decoupling. Current production, factory packaging. CLICK HERE for factory data on this part, select LC filters under EMI filters. NEW 30,000 on hand$125/2500, 4/$1 |
| Description | Price Each | ||
 Tecate 850-0045 |
AC Powerline EMI Common Mode Filter Choke Estimated 4.5A rating, measures 5.2mH per winding, very high performance filter, DCR under 0.05 ohm. 4 factory packed cases of 150 parts each. 1/1/4 inch height above the PCB, pins on a 7/8 by 5/8 centers. Great for cleaning up incoming or outgoing AC, with appropriate shunt capacitors. LOC:IND |
NEW 600 pcs. |
$2 each 150/$195 |
| Description | Price Each | ||
 CLICK for bigger PIC! Delta 01DEEW3V 115/250V 1A |
CLICK to visit Delta Electronics AC Powerline EMI Filter Filtered IEC AC line connector, 1A rating. CSA, UL, VDE rated. Low leakage medical rated, hi-pot tested. Rear wires with cable connector. LOC:FACTBOXES, WSS 
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NEW 320 pcs. |
$9 each |
| Description | Price Each | ||
  CORCOM 3EZ1 |
 CORCOMCLICK to Visit! AC Powerline 3A EMI Filter New hermetically sealed filters. Fast-On quick connecto terminals, UL/CSA approved. 3A AC, 115/250VAC rated. Full data at the link above! Current production item. LOC:IND14/WSS |
NEW 35 pcs. |
$6 each |
| Description | Price Each | ||
 Delta 03ME2 115/250V 3A |
CLICK to visit Delta Electronics AC Powerline EMI Filter Filtered IEC AC line connector with PCB attachment, 3A rating. CSA, UL, VDE and S-marked. Direct PCB attachment, high dB suppression, compact design for min. behid panel depth. CLICK for BACK view. CLICK for TOP view.  LOC:FIL02 |
NEW 25 pcs. |
$10 each |
| Description | Price Each | ||
 CLICK for bigger PIC! Delta 06DEEG3B-R 115/250V 6A |
CLICK to visit Delta Electronics AC Powerline EMI Filter Filtered IEC AC line connector, 6A rating. CSA, UL, VDE and S-marked. low leakage medical rated, hi-pot tested. Rear Fast-on/solder connections. CLICK for Front view. CLICK for Back view.  LOC:FIL02 |
NEW 17 pcs. |
$12 each |
| Description | Price Each | ||
 CLICK for bigger PIC! Schaffner FN 323-6/01 |
 Schaffner CLICK to Visit! AC Powerline EMI Filter Filtered IEC AC line connector, 6A rating. CSA, UL, VDE and S-marked. 
LOC:IND03 |
NEW 7 pcs. |
$12 each |
| Description | Price Each | ||
 CLICK for bigger PIC!  CORCOM F3968 120V/240V 10A/5A |
CORCOM CLICK to Visit! AC Powerline 10A/5A EMI Filter New hermetically sealed filters. Fast-On quick connecto terminals, UL/CSA approved. 10A/5A AC, Dual 120/240VAC rated. LOC:FIL12-FACTBOX/WSS |
NEW 99 pcs. |
$8 each |
| Description | Price Each | ||
 REO K79478 |
 REO, click to visit them! AC Powerline 15A Common Mode EMI Toroidal Filter Choke CE approved. 15A AC, Dual 1.8mh windings with flying leads and AMP/Tyco Faston connectors, 115/250VAC rated. 3.5 inches in diameter, 1.5 inches high. Be aware that metallic center mounting hardware acts as a winding. The two coils are 1-3 and 2-4, the INPUT can be applied to 1/2, and the OUTPUT to 3/4. LOC:FS |
NEW 15 pcs. |
$19 each |
| Description | Price Each | ||
 CORCOM 20W1 |
CORCOM CLICK to Visit! AC Powerline 20A EMI Filter New tray packed high current hermetically sealed filters. Fast-On quick connecto terminals, UL approved. 20A AC, 115/250VAC rated. Full data at the link above! Current production item, normally lists for over $75 each. LOC:FIL01(GAR) |
NEW 10 pcs. |
$25 each |
| IMPORTANT ! Graphical logos and trademarks are the property of their respective owners, including Tektronix, Fluke, RCA, TI, GE, General Radio and Hewlett Packard, and are used here merely to unambiguously identify the products. Sphere Research IS NOT a factory authorized distributor for any of the product lines indicated. |
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