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.
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| Part & Mfr | Current Rating (Amps) | Current Ratio | DC Resistance (DCR) | ET (Volt | Frequency Range | Height | Inductance | Mounting Type | Ratings | Size | Termination Style | Turns Ratio | Type | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Wago Corporation
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125 A | - | - | - | 50Hz ~ 60Hz | 1.984" (50.40mm) | - | Chassis Mount | - | 1.890" L x 1.417" W (48.00mm x 36.00mm) | Wire Leads | - | Non-Invasive (Split Core) | |
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Littelfuse Inc.
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5 A | 5:0.05 | - | - | 50Hz ~ 400Hz | 5.280" (134.12mm) | - | Free Hanging (In-Line) | - | 5.725" L x 5.421" W (145.42mm x 137.69mm) | Wire Leads | 100:1 | Non-Invasive (Solid Core) | |
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Wago Corporation
|
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150 A | - | - | - | 50Hz ~ 60Hz | 2.677" (68.00mm) | - | Chassis Mount | - | 2.244" L x 0.787" W (57.00mm x 20.00mm) | Terminal Block | - | Non-Invasive (Solid Core) | |
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CR Magnetics Inc.
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4000 A | 4000:5 | - | - | 50Hz ~ 400Hz | 4.252" (108.00mm) | - | Through Hole | - | 6.728" L x 1.280" W (170.90mm x 32.50mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Red Lion Controls
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- | - | - | - | - | 2.669" (67.80mm) | - | - | - | 2.402" L x 2.000" W (61.00mm x 50.80mm) | - | - | - | |
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Wago Corporation
|
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2500 A | - | - | - | 50Hz ~ 60Hz | 5.805" (147.45mm) | - | Chassis Mount | - | 5.118" L x 1.378" W (130.00mm x 35.00mm) | Terminal Block | - | Non-Invasive (Solid Core) | |
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Littelfuse Inc.
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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Wago Corporation
|
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100 A | - | - | - | 50Hz ~ 60Hz | 2.638" (67.00mm) | - | Chassis Mount | - | 2.252" L x 1.929" W (57.20mm x 49.00mm) | Wire Leads | - | Non-Invasive (Split Core) | |
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Wago Corporation
|
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200 A | - | - | - | 50Hz ~ 60Hz | 2.638" (67.00mm) | - | Chassis Mount | - | 2.252" L x 1.929" W (57.20mm x 49.00mm) | Wire Leads | - | Non-Invasive (Split Core) | |
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Wago Corporation
|
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300 A | - | - | - | 50Hz ~ 60Hz | 2.638" (67.00mm) | - | Chassis Mount | - | 2.252" L x 1.929" W (57.20mm x 49.00mm) | Wire Leads | - | Non-Invasive (Split Core) | |
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Wago Corporation
|
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300 A | - | - | - | 50Hz ~ 60Hz | 2.638" (67.00mm) | - | Chassis Mount | - | 2.252" L x 1.929" W (57.20mm x 49.00mm) | Wire Leads | - | Non-Invasive (Split Core) | |
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Eaton - Electronics Division
|
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7 A | - | 3Ohm Primary, 350mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.140" (3.55mm) | 33 µH | Surface Mount | AEC-Q200 | 0.189" L x 0.144" W (4.80mm x 3.65mm) | J Lead | 20:1 | Invasive | |
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Eaton - Electronics Division
|
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7 A | - | 3Ohm Primary, 3.6Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.140" (3.55mm) | 295 µH | Surface Mount | AEC-Q200 | 0.189" L x 0.144" W (4.80mm x 3.65mm) | J Lead | 60:1 | Invasive | |
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Eaton - Electronics Division
|
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7 A | - | 3Ohm Primary, 21Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.140" (3.55mm) | 1.8 mH | Surface Mount | AEC-Q200 | 0.189" L x 0.144" W (4.80mm x 3.65mm) | J Lead | 150:1 | Invasive | |
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Amgis, LLC
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- | - | - | - | - | 0.709" (18.00mm) | - | - | - | 0.571" L x 0.772" W (14.50mm x 19.60mm) | - | - | - | |
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Amgis, LLC
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- | - | - | - | - | 1.000" (25.40mm) | - | - | - | 0.990" L x 0.440" W (25.15mm x 11.18mm) | - | - | - | |
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Amgis, LLC
|
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- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Amgis, LLC
|
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Price and Stock
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- | - | - | - | - | 0.984" (25.00mm) | - | - | - | 0.906" L x 0.610" W (23.00mm x 15.50mm) | - | - | - | |
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Amgis, LLC
|
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Price on request
Price and Stock
on Request |
- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Amgis, LLC
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Amgis, LLC
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Amgis, LLC
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Amgis, LLC
|
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- | - | - | - | - | 1.398" (35.50mm) | - | - | - | 1.280" L x 0.709" W (32.50mm x 18.00mm) | - | - | - | |
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Amgis, LLC
|
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Price on request
Price and Stock
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- | - | - | - | - | 1.398" (35.50mm) | - | - | - | 1.280" L x 0.709" W (32.50mm x 18.00mm) | - | - | - | |
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Amgis, LLC
|
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Price on request
Price and Stock
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- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
|
Talema
|
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80 A | - | - | 7500VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:500 | Non-Invasive (Solid Core) | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 800mOhm Secondary | 13.5VµS | 1MHz | 0.140" (3.55mm) | 74 µH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:30 | Invasive | |
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Yageo
|
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10 A | - | 25Ohm | - | 50/60Hz | 0.335" (8.50mm) | - | Through Hole | - | 0.858" L x 0.760" W (21.80mm x 19.30mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 3.6Ohm Secondary | 27VµS | 1MHz | 0.140" (3.55mm) | 295 µH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:60 | Invasive | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 1.6Ohm Secondary | 18VµS | 1MHz | 0.140" (3.55mm) | 132 µH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:40 | Invasive | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 21Ohm Secondary | 67.5VµS | 1MHz | 0.140" (3.55mm) | 1.8 mH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:150 | Invasive | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 350mOhm Secondary | 9VµS | 1MHz | 0.140" (3.55mm) | 33 µH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:20 | Invasive | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 4.6Ohm Secondary | 31.5VµS | 1MHz | 0.140" (3.55mm) | 400 µH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:70 | Invasive | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 13Ohm Secondary | 56.2VµS | 1MHz | 0.140" (3.55mm) | 1.28 mH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:125 | Invasive | |
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Würth Elektronik
|
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7 A | - | 3mOhm Primary, 2.5Ohm Secondary | 22.5VµS | 1MHz | 0.140" (3.55mm) | 205 µH | Surface Mount | - | 0.185" L x 0.183" W (4.70mm x 4.65mm) | Gull Wing | 1:50 | Invasive | |
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Talema
|
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50 A | - | 72Ohm Primary | - | 50Hz ~ 60Hz | 0.453" (11.50mm) | - | Chassis Mount | - | 0.748" Dia (19.00mm) | Wire Leads | 1000:1 | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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Price on request
Price and Stock
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- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Amgis, LLC
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
|
Amgis, LLC
|
Send RFQ |
Price on request
Price and Stock
on Request |
- | - | - | - | - | 0.701" (17.80mm) | - | - | - | 0.701" L x 0.902" W (17.80mm x 22.90mm) | - | - | - | |
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Triad Magnetics
|
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110 A | 100:1 | 580mOhm Max | 2000VµS | 20kHz ~ 200kHz | 1.225" (31.12mm) | 14 mH | Through Hole | - | 1.075" L x 0.400" W (27.31mm x 10.16mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Triad Magnetics
|
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110 A | 100:1 | 580mOhm Max | 2000VµS | 20kHz ~ 200kHz | 1.225" (31.12mm) | 14 mH | Through Hole | - | 1.075" L x 0.400" W (27.31mm x 10.16mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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TDK Corporation
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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Triad Magnetics
|
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80 A | 200:1 | 3.5Ohm Max | 4000VµS | 20kHz ~ 200kHz | 1.225" (31.12mm) | 56 mH | Through Hole | - | 1.075" L x 0.400" W (27.31mm x 10.16mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Triad Magnetics
|
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80 A | 200:1 | 3.5Ohm Max | 4000VµS | 20kHz ~ 200kHz | 1.225" (31.12mm) | 56 mH | Through Hole | - | 1.075" L x 0.400" W (27.31mm x 10.16mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Triad Magnetics
|
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70 A | 300:1 | 12.4Ohm Max | 6000VµS | 20kHz ~ 200kHz | 1.225" (31.12mm) | 130 mH | Through Hole | - | 1.075" L x 0.400" W (27.31mm x 10.16mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Triad Magnetics
|
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70 A | 300:1 | 12.4Ohm Max | 6000VµS | 20kHz ~ 200kHz | 1.225" (31.12mm) | 130 mH | Through Hole | - | 1.075" L x 0.400" W (27.31mm x 10.16mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Pulse Electronics
|
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200 A | - | 66Ohm Max | - | 50/60Hz | 0.559" (14.20mm) | 1.86 mH | Chassis Mount | - | 1.437" L x 1.913" W (36.50mm x 48.60mm) | Wire Leads | Rogowski Coil | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | - | 7500VµS | 20kHz ~ 200kHz | 1.398" (35.50mm) | - | Through Hole | - | 1.280" L x 0.709" W (32.50mm x 18.00mm) | PC Pin | 1:500 | Non-Invasive (Solid Core) | |
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Talema
|
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75 A | - | - | - | 50Hz ~ 60Hz | 1.189" (30.20mm) | - | Through Hole | - | 1.189" L x 0.563" W (30.20mm x 14.30mm) | PC Pin | 2500:1 | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | - | - | - | 1.378" (35.00mm) | - | - | - | 1.260" L x 0.807" W (32.00mm x 20.50mm) | - | - | - |
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