Current Sense Transformers
Use the filters and product table below to compare Current Sense Transformers components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.
If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.
| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Series | Packaging | Product Status | Frequency Range | Type | Current Rating (Amps) | Inductance | ET (Volt-Time) | Turns Ratio - Primary:Secondary | Current Ratio | DC Resistance (DCR) | Ratings | Mounting Type | Size / Dimension | Height - Seated (Max) | Termination Style |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
B78419A2290A003CURR SENSE XFMR 1:125 SMD |
200 | - |
|
Datasheet | B78419 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 11 mH | - | 1:125 | - | 0.5mOhm Primary, 4Ohm Secondary | - | Surface Mount | 0.504" L x 0.535" W (12.80mm x 13.60mm) | 0.567" (14.40mm) | Gull Wing |
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B78417A2286A003CURR SENSE XFMR 1:70 SMD |
295 | - |
|
Datasheet | B78417 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 3 mH | - | 1:70 | - | 1.9mOhm Primary, 2.9Ohm Secondary | - | Surface Mount | 0.417" L x 0.480" W (10.60mm x 12.20mm) | 0.433" (11.00mm) | Gull Wing |
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B82801B0984A070CURR SENSE XFMR 1:70 SMD |
700 | - |
|
Datasheet | B82801B | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 980 µH | - | 1:70 | - | 0.8mOhm Primary, 4.75Ohm Secondary | - | Surface Mount | 0.280" L x 0.320" W (7.11mm x 8.13mm) | 0.200" (5.08mm) | Gull Wing |
|
B82801A1333A020CURR SENSE XFMR 1:20 SMD |
509 | - |
|
Datasheet | B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 33 µH | - | 1:20 | - | 2.5mOhm Primary, 320mOhm Secondary | - | Surface Mount | 0.138" L x 0.185" W (3.50mm x 4.70mm) | 0.138" (3.50mm) | J Lead |
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B78419A2251A003CURR SENSE XFMR 1:100 SMD |
1,206 | - |
|
Datasheet | B78419 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 7 mH | - | 1:100 | - | 0.5mOhm Primary, 3.1Ohm Secondary | - | Surface Mount | 0.504" L x 0.535" W (12.80mm x 13.60mm) | 0.567" (14.40mm) | Gull Wing |
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B78419A2289A003CURR SENSE XFMR 1:70 SMD |
3,511 | - |
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Datasheet | B78419 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 3 mH | - | 1:70 | - | 0.5mOhm Primary, 2.1Ohm Secondary | - | Surface Mount | 0.504" L x 0.535" W (12.80mm x 13.60mm) | 0.567" (14.40mm) | Gull Wing |
|
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B82801B0305A125CURR SENSE XFMR 1:125 SMD |
2,258 | - |
|
Datasheet | B82801B | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 3 mH | - | 1:125 | - | 0.8mOhm Primary, 6.5Ohm Secondary | - | Surface Mount | 0.280" L x 0.320" W (7.11mm x 8.13mm) | 0.200" (5.08mm) | Gull Wing |
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B82801A1743A030CURR SENSE XFMR 1:30 SMD |
2,809 | - |
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Datasheet | B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 74 µH | - | 1:30 | - | 2.5mOhm Primary, 800mOhm Secondary | - | Surface Mount | 0.185" L x 0.138" W (4.70mm x 3.50mm) | 0.138" (3.50mm) | J Lead |
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B82801A1404A070CURR SENSE XFMR SMD |
1,640 | - |
|
Datasheet | B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 400 µH | - | - | - | - | - | Surface Mount | 0.185" L x 0.138" W (4.70mm x 3.50mm) | 0.138" (3.50mm) | J Lead |
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B78419A2288A003CURR SENSE XFMR 1:50 SMD |
2,774 | - |
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Datasheet | B78419 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 1.7 mH | - | 1:50 | - | 0.5mOhm Primary, 1.5Ohm Secondary | - | Surface Mount | 0.504" L x 0.535" W (12.80mm x 13.60mm) | 0.567" (14.40mm) | Gull Wing |
Current Sense Transformers FAQ
Common questions about filtering, comparing and sourcing Current Sense Transformers components.
How can I narrow the Current Sense Transformers selection?
Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.
Should I confirm the datasheet before selecting a part?
Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.
Can Winsun (HK) Electronics help source a specific Current Sense Transformers part number?
Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.
Do you support BOM, shortage or alternative-part requirements?
Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.
