What are Current Sense Transformers ?
Current Sense Transformers are devices designed to measure the current flowing through a conductor while providing electrical isolation. They are commonly used in applications like production electronics assembly and maintenance. Important specifications include Current Rating (Amps), which determines the maximum current the transformer can handle; Current Ratio, which affects the output signal relative to the input current; and DC Resistance (DCR), which impacts efficiency and heat generation. Ensuring compatibility with existing designs and validating lifecycle status are crucial for procurement teams.
Parts in this category
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| Part & Mfr | Accuracy | Current Rating | Current Rating (Amps) | Current Ratio | DC Resistance | DC Resistance (DCR) | Diameter | ET (Volt | Footprint | Frequency | Frequency Range | Height | Inductance | Insulation Resistance | Lead Spacing | Lead Style | Length | Material | Mounting Style | Mounting Type | Operating Temperature | Operating Temperature Range | Package Quantity | RS | Ratings | Size | Storage Temperature | Tape & Reel | Termination Style | Transformer Type | Turns Ratio | Type | Width | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Talema
|
20,745
|
Price on request
|
1% | - | 50 A | - | - | - | - | - | - | - | 50Hz ~ 60Hz | 23.80mm (0.937") | - | - | 0 mm | - | 23.80mm (0.937") | UL94V-0 | - | Through Hole | - | -40 to +85°C | - | - | - | - | °C ~ °C | No | PC Pin | - | 2500:1 | Non-Invasive (Solid Core) | 11.12mm (0.438") | |
|
Talema
|
3,000
|
Price on request
|
- | - | 10 A | 1000:1 | - | 70Ohm Max | - | - | - | - | - | 20.40mm (0.803") | - | - | - | - | 17.20mm (0.677") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Non-Invasive (Solid Core) | 9.53mm (0.375") | |
|
Pulse Electronics
|
2,950
|
Price on request
|
- | - | 100A | - | - | 54 Ohm Max | - | - | - | - | 50/60Hz | 14.73mm | 1.14mH | - | 14.73 mm | - | 30.60mm | - | - | Chassis Mount | - | - | 20 | - | - | - | °C ~ °C | No | Wire Leads | - | Rogowski Coil | Non-Invasive (Solid Core) | 30.20mm | |
|
Pulse Electronics
|
2,720
|
Price on request
|
- | - | 20 A | - | - | 0.75mOhm Primary, 5.5Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 5.50mm (0.217") | 2 mH | - | 0 mm | - | 7.21mm (0.284") | - | - | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:100 | Invasive | 8.38mm (0.330") | |
|
Pulse Electronics
|
1,206
|
Price on request
|
- | 4 A | - | - | - | 4mOhm Primary, 1.6Ohm Secondary | - | - | - | - | 50 kHz to 1 MHz | 3.40mm (0.134") | 6.7 mH | - | - | - | 8.25mm (0.325") | - | SMD/SMT | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | SMD/SMT | - | 1:100 | Invasive | 8.25mm (0.325") | |
|
Murata
|
955
|
Price on request
|
- | - | - | - | - | 7mΩ Primary, 1.1Ω Secondary | - | - | - | - | 50kHz - 500kHz | 5.40mm (0.213") | 320µH | - | 0 mm | - | 7.20mm (0.283") | - | - | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:40 | Invasive | 8.30mm (0.327") | |
|
Pulse Electronics
|
900
|
Price on request
|
- | - | - | - | - | 6mΩ Primary, 1.5Ω Secondary | - | - | - | - | 50kHz - 1MHz | 5.50mm (0.217") | 500µH | - | - | - | 7.21mm (0.284") | - | - | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:50 | Invasive | 8.38mm (0.330") | |
|
Pulse Electronics
|
859
|
Price on request
|
- | 20 A | 20 A | 100:1 | 1.4 Ohm | 100Ohm Primary, 1.4Ohm Secondary | - | - | - | - | 20kHz - 200kHz | 20.32mm (0.800") | 20 mH | - | - | - | 17.01mm (0.670") | - | - | Through Hole | -40°C to +125°C | - | - | - | - | - | °C ~ °C | No | PC Pin | Current Sense | - | Invasive | 9.90mm (0.390") | |
|
Pulse Electronics
|
725
|
Price on request
|
- | - | 20 A | - | - | 0.75 Ohm Primary, 4.75 Ohm Secondary Max | - | - | - | - | 50kHz ~ 1MHz | 5.50mm (0.217") | 980 µH | - | 0 mm | - | 7.21mm (0.284") | - | - | Surface Mount | - | - | - | - | AEC-Q200 | - | °C ~ °C | No | Gull Wing | - | 1:70 | Invasive | 8.38mm (0.330") | |
|
Pulse Electronics
|
683
|
Price on request
|
- | - | 20 A | 50:1 | - | 50Ohm Primary, 700mOhm Secondary | - | - | - | - | 20kHz to 200kHz | 20.32mm (0.800") | 5 mH | - | - | - | 17.01mm (0.670") | - | - | Through Hole | -40°C to +125°C | - | - | 0.5 Ω | - | - | °C ~ °C | No | PC Pin | - | - | Invasive | 9.90mm (0.390") | |
|
Pulse Electronics
|
371
|
Price on request
|
- | - | - | - | - | 4.5 Ohm Max | - | 700 VµS | - | - | 500 kHz Max | 12.50mm (0.492") | 76 mH | - | - | - | 17.60mm (0.693") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | 1:200 | Invasive | 15.00mm (0.591") | |
|
Pulse Electronics
|
361
|
Price on request
|
- | - | 20 A | - | - | 0.75 mOhms | - | - | - | - | 50 kHz to 1 MHz | 5.50mm (0.217") | 2 mH | - | 5.50 mm | Gull Wing | 7.21mm (0.284") | - | - | Surface Mount | -40°C to +130°C | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:100 | Invasive | 8.38mm (0.330") | |
Pulse Electronics
|
250
|
Price on request
|
- | - | - | - | - | 6mOhm Primary, 5.5Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 5.50mm (0.217") | 2 mH | - | 0.217" (5.50mm) mm | - | 7.21mm (0.284") | - | - | Surface Mount | -40°C to +125°C | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:100 | Invasive | 8.38mm (0.330") | |
|
Pulse Electronics
|
197
|
Price on request
|
- | - | 20 A | - | - | 0.75 mOhm Primary, 1.14 Ohm Secondary Max | - | - | - | - | 50 kHz to 1 MHz | 5.50mm (0.217") | 320 µH | - | 0.284" (7.21mm) mm | - | 7.21mm (0.284") | - | - | Surface Mount | - | - | - | - | AEC-Q200 | - | °C ~ °C | No | Gull Wing | - | 1:40 | Invasive | 8.38mm (0.330") | |
|
Murata
|
187
|
Price on request
|
- | - | - | - | - | 7mΩ Primary, 6.6Ω Secondary | - | - | - | - | 50kHz - 500kHz | 8.20mm (0.323") | 60mH | - | N/A mm | - | 9.00mm (0.354") | - | - | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:1:200 | Invasive | 10.80mm (0.425") | |
Talema
|
173
|
Price on request
|
- | - | 100 A | 1000:1 | - | 21.3 Ohm | - | - | - | - | 50/60 Hz | 44.50mm (1.752") | - | - | - | - | 44.50mm (1.752") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Non-Invasive (Solid Core) | 14.30mm (0.563") | |
Pulse Electronics
|
169
|
Price on request
|
- | 10A | - | - | - | 6mOhm Primary | - | - | 8.4mm x 7.2mm | - | 20kHz to 1MHz | 5.50mm | 2.00mH | - | 0.217" (5.50mm) mm | - | 7.21mm | - | - | Surface Mount | -40°C to +130°C | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:100 | Invasive | 8.38mm | |
|
Pulse Electronics
|
143
|
Price on request
|
- | - | - | - | - | 500mOhm Max | - | 175VµS | - | - | 500kHz Max | 12.50mm (0.492") | 4.7 mH | - | - | - | 17.60mm (0.693") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | 1:50 | Invasive | 15.00mm (0.591") | |
|
CR Magnetics Inc.
|
142
|
Price on request
|
- | - | 50 A | 2000:1 | - | 106 Ohm | - | - | - | - | 20Hz ~ 1kHz | 25.00mm (0.984") | - | - | - | - | 23.50mm (0.925") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Non-Invasive (Solid Core) | 11.00mm (0.433") | |
|
Murata
|
113
|
Price on request
|
- | - | - | - | - | 7mΩ Primary, 1.75Ω Secondary | - | - | - | - | 50kHz - 500kHz | 5.40mm (0.213") | 500µH | - | - | - | 7.20mm (0.283") | - | - | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:50 | Invasive | 8.30mm (0.327") | |
|
Pulse Electronics
|
59
|
Price on request
|
- | - | 20 A | 100:1 | - | 100Ohm Primary, 1.4Ohm Secondary | - | - | - | - | 20kHz ~ 200kHz | 17.78mm (0.700") | 20 mH | - | 0.700 mm | - | 22.86mm (0.900") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Invasive | 17.78mm (0.700") | |
|
TDK Corporation
|
35
|
Price on request
|
- | - | - | - | - | 0.28mΩ Primary, 2.2Ω Secondary | - | - | - | - | 50kHz - 500kHz | 10.00mm (0.394") | 12.6mH | - | - | - | 14.22mm (0.560") | - | - | Surface Mount | - | - | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:150 | Invasive | 13.46mm (0.530") | |
|
Pulse Electronics
|
33
|
Price on request
|
- | - | - | - | - | 65mOhm Secondary Max | - | - | - | - | - | 5.97mm (0.235") | 350µH | - | - | - | 12.70mm (0.500") | - | - | Surface Mount | - | - | - | - | - | - | - | - | Gull Wing | - | 1.414CT:1 | Invasive | 7.11mm (0.280") | |
|
Pulse Electronics
|
32
|
Price on request
|
- | - | 37A | 100:1 | - | 56Ω | - | - | - | - | 10kHz ~ 200kHz | 19.05mm (0.750") | 20 mH | - | 19.05 mm | - | 14.35mm (0.565") | - | - | Through Hole | -40°C to +130°C | - | - | - | - | - | °C ~ °C | No | PC Pin | - | 1:100 | Invasive | 19.05mm (0.750") | |
|
Triad Magnetics
|
27
|
Price on request
|
- | - | 10 A | - | - | 1500 mΩ | - | - | - | 250 kHz | 250kHz Min | 5.33mm (0.210") | 500 µH | 10 MΩ | - | - | 6.90mm (0.272") | - | - | Surface Mount | - | -15°C to +105°C | - | - | - | - | °C ~ °C | No | Gull Wing | - | 1:50 | Invasive | 7.70mm (0.303") | |
Triad Magnetics
|
6
|
Price on request
|
- | - | 25 A | 100CT:1 | - | 1.55 Ohm Max | - | 1000VµS | - | - | 20kHz ~ 200kHz | 23.24mm (0.915") | 14 mH | - | - | - | 17.53mm (0.690") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Non-Invasive (Solid Core) | 9.78mm (0.385") | |
|
Pulse Electronics
|
4
|
Price on request
|
- | - | 20 A | - | - | 100Ohm Primary, 1.4Ohm Secondary | - | - | - | - | 20kHz ~ 200kHz | 17.78mm (0.700") | 20 mH | - | 17.78 mm | - | 22.86mm (0.900") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | 100:1:1 | Invasive | 17.78mm (0.700") | |
|
CR Magnetics Inc.
|
3
|
Price on request
|
- | - | 75 A | 2500:1 | - | 190 Ohm | - | - | - | - | 20Hz ~ 1kHz | 28.00mm (1.102") | - | - | - | - | 26.00mm (1.024") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Non-Invasive (Solid Core) | 17.00mm (0.670") | |
Simpson Electric
|
3
|
Price on request
|
- | - | 50 A | - | - | - | 90.42mm (3.560") | - | - | - | - | 27.94mm (1.100") | - | - | - | - | - | - | - | Free Hanging (In-Line) | - | - | - | - | - | - | °C ~ °C | No | Wire Leads | - | 10:1 | Non-Invasive (Solid Core) | - | |
|
CR Magnetics Inc.
|
1
|
Price on request
|
- | - | 20 A | 1000:1 | - | 41 Ohm | - | - | - | - | 20Hz ~ 1kHz | 8.20mm (0.323") | - | - | - | - | 27.80mm (1.094") | - | - | Free Hanging (In-Line) | - | - | - | - | - | - | °C ~ °C | No | Wire Leads | - | - | Non-Invasive (Solid Core) | 22.00mm (0.866") | |
|
CR Magnetics Inc.
|
1
|
Price on request
|
- | - | 50 A | 2000:1 | - | 88Ohm | - | - | - | - | 20kHz ~ 200kHz | 25.00mm (0.984") | - | - | - | - | 23.50mm (0.925") | - | - | Through Hole | - | - | - | - | - | - | °C ~ °C | No | PC Pin | - | - | Non-Invasive (Solid Core) | 11.00mm (0.433") | |
|
Seeed Technology Co., Ltd
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 25 A | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Chassis Mount | - | - | - | - | - | - | - | - | Wire Leads with Connector | - | - | Non-Invasive (Split Core) | - | |
|
Seeed Technology Co., Ltd
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 50 A | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Chassis Mount | - | - | - | - | - | - | - | - | Wire Leads with Connector | - | - | Non-Invasive (Split Core) | - | |
|
Murata
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.3mOhm Primary, 350mOhm Secondary | - | - | - | - | 50kHz ~ 500kHz | 0.280" (7.10mm) | 3.8 mH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.496" L x 0.575" W (12.60mm x 14.60mm) | - | - | - | - | 1:1:50 | Invasive | - | |
|
Murata
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.3mOhm Primary, 850mOhm Secondary | - | - | - | - | 50kHz ~ 500kHz | 0.280" (7.10mm) | 14.8 mH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.496" L x 0.575" W (12.60mm x 14.60mm) | - | - | - | - | 1:1:100 | Invasive | - | |
|
Murata
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.3mOhm Primary, 3.6Ohm Secondary | - | - | - | - | 50kHz ~ 500kHz | 0.280" (7.10mm) | 60 mH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.496" L x 0.575" W (12.60mm x 14.60mm) | - | - | - | - | 1:1:200 | Invasive | - | |
|
Murata
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 5 A | 50:5 | - | - | - | - | - | - | 50Hz ~ 400Hz | 1.402" (35.60mm) | - | - | - | - | - | - | - | Free Hanging (In-Line) | - | - | - | - | - | 2.701" Dia (68.60mm) | - | - | Wire Leads | - | - | Non-Invasive (Solid Core) | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
|
Murata
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 5 A | 200:5 | - | - | - | - | - | - | 50Hz ~ 400Hz | 1.402" (35.60mm) | - | - | - | - | - | - | - | Free Hanging (In-Line) | - | - | - | - | - | 2.701" Dia (68.60mm) | - | - | Wire Leads | - | - | Non-Invasive (Solid Core) | - | |
|
Murata
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | 50Hz ~ 400Hz | 1.098" (27.90mm) | - | - | - | - | - | - | - | Free Hanging (In-Line) | - | - | - | - | - | 1.560" Dia (39.60mm) | - | - | Wire Leads | - | - | Non-Invasive (Solid Core) | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.5mOhm Primary, 800mOhm Secondary | - | - | - | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 74 µH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | - | - | J Lead | - | 1:30 | Invasive | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.5mOhm Primary, 1.3Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 132 µH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | - | - | J Lead | - | 1:40 | Invasive | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.5mOhm Primary, 2.2Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 205 µH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | - | - | J Lead | - | 1:50 | Invasive | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.5mOhm Primary, 3.6Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 295 µH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | - | - | J Lead | - | 1:60 | Invasive | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.5mOhm Primary, 8.7Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 820 µH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | - | - | J Lead | - | 1:100 | Invasive | - | |
|
TDK Corporation
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 2.5mOhm Primary, 13Ohm Secondary | - | - | - | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 1.28 mH | - | - | - | - | - | - | Surface Mount | - | - | - | - | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | - | - | J Lead | - | 1:125 | Invasive | - | |
|
CR Magnetics Inc.
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | - | - | - | - | - | 20Hz ~ 1kHz | 0.362" (9.20mm) | - | - | - | - | - | - | - | Free Hanging (In-Line) | - | - | - | - | - | 1.417" L x 1.181" W (36.00mm x 30.00mm) | - | - | Wire Leads | - | - | Non-Invasive (Solid Core) | - | |
|
Pulse Electronics
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 20 A | 100CT:1 | - | 100Ohm Primary, 1.4Ohm Secondary | - | - | - | - | 20kHz ~ 200kHz | 0.700" (17.78mm) | 20 mH | - | - | - | - | - | - | Through Hole | - | - | - | - | - | 0.900" L x 0.700" W (22.86mm x 17.78mm) | - | - | PC Pin | - | - | Invasive | - | |
|
Pulse Electronics
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 20 A | 300CT:1 | - | 300Ohm Primary, 11Ohm Secondary | - | - | - | - | 20kHz ~ 200kHz | 0.700" (17.78mm) | 180 mH | - | - | - | - | - | - | Through Hole | - | - | - | - | - | 0.900" L x 0.700" W (22.86mm x 17.78mm) | - | - | PC Pin | - | - | Invasive | - | |
|
Pulse Electronics
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | 20 A | 50:1 | - | 50Ohm Primary, 700mOhm Secondary | - | - | - | - | 20kHz ~ 200kHz | 0.700" (17.78mm) | 5 mH | - | - | - | - | - | - | Through Hole | - | - | - | - | - | 0.900" L x 0.700" W (22.86mm x 17.78mm) | - | - | PC Pin | - | - | Invasive | - |
Showing 1-50 of 1,221 products