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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Triad Magnetics
|
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10 A | - | 550mOhm Secondary | - | 250kHz Min | 0.210" (5.33mm) | 80 µH | Surface Mount | - | 0.272" L x 0.303" W (6.90mm x 7.70mm) | Gull Wing | 1:200 | Invasive | |
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Vacuumschmelze
|
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6 A | 1500:1 | 45.5Ohm | - | 50Hz | 0.748" (19.00mm) | 35 H | Through Hole | - | 0.661" L x 0.354" W (16.80mm x 9.00mm) | PC Pin | 1:1500 | Non-Invasive (Solid Core) | |
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Eaton - Electronics Division
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9 A | - | 1.5mOhm Primary, 22.3Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.118" (3.00mm) | 2.99 mH | Surface Mount | AEC-Q200 | 0.283" L x 0.205" W (7.20mm x 5.20mm) | J Lead | 150:1 | Invasive | |
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Eaton - Electronics Division
|
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9 A | - | 1.5mOhm Primary, 2.76Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.118" (3.00mm) | 333 µH | Surface Mount | AEC-Q200 | 0.283" L x 0.205" W (7.20mm x 5.20mm) | J Lead | 50:1 | Invasive | |
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Eaton - Electronics Division
|
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9 A | - | 1.5mOhm Primary, 420mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.118" (3.00mm) | 53 µH | Surface Mount | AEC-Q200 | 0.283" L x 0.205" W (7.20mm x 5.20mm) | J Lead | 20:1 | Invasive | |
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TDK Corporation
|
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- | - | 2.5mOhm Primary, 800mOhm Secondary | 6VµS | 50kHz ~ 1MHz | 0.138" (3.50mm) | 74 µH | Surface Mount | - | 0.185" L x 0.138" W (4.70mm x 3.50mm) | J Lead | - | Invasive | |
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Talema
|
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7.5 A | 750:1 | - | - | 50Hz ~ 60Hz | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | - | - | - | 0.803" (20.40mm) | - | - | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | - | - | - | |
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Amgis, LLC
|
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- | - | - | - | - | 0.803" (20.40mm) | - | - | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | - | - | - | |
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Bourns
|
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20 A | 30:1 | 7mOhm Primary, 870mOhm Secondary Max | 16.2VµS | 1MHz | 0.209" (5.31mm) | 180 mH | Surface Mount | - | 0.245" L x 0.235" W (6.22mm x 5.97mm) | Gull Wing | 1:30 | Invasive | |
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Bourns
|
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20 A | 70:1 | 7mOhm Primary, 4.75Ohm Secondary Max | 37.8VµS | 1MHz | 0.209" (5.31mm) | 980 mH | Surface Mount | - | 0.245" L x 0.235" W (6.22mm x 5.97mm) | Gull Wing | 1:70 | Invasive | |
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Bourns
|
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20 A | 50:1 | 7mOhm Primary, 1.5Ohm Secondary Max | 27VµS | 1MHz | 0.209" (5.31mm) | 500 mH | Surface Mount | - | 0.245" L x 0.235" W (6.22mm x 5.97mm) | Gull Wing | 1:50 | Invasive | |
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Amgis, LLC
|
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- | - | - | - | - | 0.803" (20.40mm) | - | - | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | - | - | - | |
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Amgis, LLC
|
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- | - | 10Ohm Max | 900VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | 250 mH | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:300 | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | - | - | - | 0.803" (20.40mm) | - | - | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | - | - | - | |
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Talema
|
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10 A | 1000:1 | - | - | 50Hz ~ 60Hz | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | 550mOhm Max | 350VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | 25 mH | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:100CT | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | 12.5Ohm Max | 1500VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | 700 mH | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:500CT | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | 5Ohm Max | 900VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | 250 mH | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:300CT | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | - | - | - | 0.787" (20.00mm) | - | - | - | 0.701" L x 0.504" W (17.80mm x 12.80mm) | - | - | - | |
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Amgis, LLC
|
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- | - | - | - | - | 0.803" (20.40mm) | - | - | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | - | - | - | |
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Talema
|
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10 A | 1500:1 | 120Ohm Max | - | - | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | - | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | 2.25Ohm Max | 700VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | 100 mH | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:200CT | Non-Invasive (Solid Core) | |
|
Bourns
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40 A | 20:1 | 1mOhm Primary, 180mOhm Secondary Max | 50.8VµS | 1MHz | 0.413" (10.50mm) | 340 µH | Surface Mount | - | - | Gull Wing | 1:20 | Invasive | |
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Bourns
|
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40 A | 70:1 | 1mOhm Primary, 1Ohm Secondary Max | 177.8VµS | 1MHz | 0.413" (10.50mm) | 4.16 mH | Surface Mount | - | - | Gull Wing | 1:70 | Invasive | |
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Bourns
|
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40 A | 100:1 | 1mOhm Primary, 1.45Ohm Secondary Max | 254VµS | 1MHz | 0.413" (10.50mm) | 8.5 mH | Surface Mount | - | - | Gull Wing | 1:100 | Invasive | |
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Bourns
|
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40 A | 125:1 | 1mOhm Primary, 1.85Ohm Secondary Max | 317.5VµS | 1MHz | 0.413" (10.50mm) | 13.3 mH | Surface Mount | - | - | Gull Wing | 1:125 | Invasive | |
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Amgis, LLC
|
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- | - | - | - | 50/60Hz | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | - | Non-Invasive (Solid Core) | |
|
Bourns
|
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40 A | 50:1 | 1mOhm Primary, 705mOhm Secondary Max | 127VµS | 1MHz | 0.413" (10.50mm) | 2.12 mH | Surface Mount | - | - | Gull Wing | 1:50 | Invasive | |
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Bourns
|
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40 A | 30:1 | 1mOhm Primary, 265mOhm Secondary Max | 76.2VµS | 1MHz | 0.413" (10.50mm) | 760 µH | Surface Mount | - | - | Gull Wing | 1:30 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 1.3Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 3.5 mH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 80:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 1Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 2.7 mH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 70:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 320mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 500 µH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 30:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 500mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 880 µH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 40:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 6.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 12.6 mH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 150:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 8Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 22 mH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 200:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 810mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 2 mH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 60:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 5.2Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 8.7 mH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 125:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 210mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 220 µH | Surface Mount | - | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 20:1 | Invasive | |
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Amgis, LLC
|
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- | - | 21.5Ohm Max | 3750VµS | 20kHz ~ 200kHz | 0.803" (20.40mm) | 1.68 mH | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | 1:750CT | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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- | - | - | - | - | 0.984" (25.00mm) | - | - | - | 0.906" L x 0.610" W (23.00mm x 15.50mm) | - | - | - | |
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Talema
|
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15 A | 1500:1 | - | - | 50Hz ~ 60Hz | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | - | Non-Invasive (Solid Core) | |
|
Talema
|
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15 A | 2000:1 | 235Ohm Max | - | - | 0.803" (20.40mm) | - | Through Hole | - | 0.677" L x 0.375" W (17.20mm x 9.53mm) | PC Pin | - | Non-Invasive (Solid Core) | |
|
Triad Magnetics
|
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30 A | - | 3mOhm Primary, 21Ohm Secondary | - | 50Hz ~ 400Hz | 0.720" (18.29mm) | - | Through Hole | - | 0.875" L x 0.875" W (22.23mm x 22.23mm) | PC Pin | 1:500 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 1.3Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 3.5 mH | Surface Mount | AEC-Q200 | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 80:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 500mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 880 µH | Surface Mount | AEC-Q200 | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 40:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 320mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 500 µH | Surface Mount | AEC-Q200 | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 30:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 1Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 2.7 mH | Surface Mount | AEC-Q200 | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 70:1 | Invasive | |
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Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 810mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 2 mH | Surface Mount | AEC-Q200 | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 60:1 | Invasive | |
|
Eaton - Electronics Division
|
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15 A | - | 3.9mOhm Primary, 6.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.307" (7.80mm) | 12.6 mH | Surface Mount | AEC-Q200 | 0.512" L x 0.433" W (13.00mm x 11.00mm) | Gull Wing | 150:1 | Invasive |
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