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 | 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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Yageo
|
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10 A | 500:1 | - | - | 50/60Hz | 0.795" (20.20mm) | - | Through Hole | - | 0.748" L x 0.394" W (19.00mm x 10.00mm) | PC Pin | 500:1 | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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50 A | - | 157Ohm | - | 50Hz ~ 60Hz | 0.937" (23.80mm) | - | Through Hole | - | 0.937" L x 0.438" W (23.80mm x 11.12mm) | PC Pin | 1:2500 | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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100 A | - | 160Ohm | - | 50Hz ~ 60Hz | 1.374" (34.90mm) | - | Through Hole | - | 1.374" L x 0.563" W (34.90mm x 14.30mm) | PC Pin | 1:2500 | Non-Invasive (Solid Core) | |
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Amgis, LLC
|
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150 A | - | 135Ohm | - | 50Hz ~ 60Hz | 1.500" (38.10mm) | - | Through Hole | - | 1.500" L x 0.626" W (38.10mm x 15.90mm) | PC Pin | 1:2500 | Non-Invasive (Solid Core) | |
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Selec Controls USA Inc.
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250 A | 250:5 | - | - | 50Hz ~ 60Hz | 3.169" (80.50mm) | - | DIN Rail | - | 2.441" L x 1.811" W (62.00mm x 46.00mm) | Terminal Block | - | Non-Invasive (Solid Core) | |
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Weidmüller
|
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75 A | - | - | - | - | 3.185" (80.90mm) | - | DIN Rail | - | 2.362" L x 2.047" W (60.00mm x 52.00mm) | Terminal Block | - | Non-Invasive (Solid Core) | |
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Phoenix Contact
|
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100 A | - | - | - | 50Hz ~ 60Hz | 3.150" (80.00mm) | - | DIN Rail | - | 2.362" L x 1.181" W (60.00mm x 30.00mm) | Terminal Block | - | Non-Invasive (Solid Core) | |
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TDK Corporation
|
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- | - | 2.5mOhm Primary, 320mOhm Secondary | - | 50kHz ~ 1MHz | 0.138" (3.50mm) | 33 µH | Surface Mount | - | 0.138" L x 0.185" W (3.50mm x 4.70mm) | J Lead | 1:20 | Invasive | |
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TDK Corporation
|
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- | - | 1.9mOhm Primary, 5.3Ohm Secondary | - | 50kHz ~ 250kHz | 0.433" (11.00mm) | 11 mH | Surface Mount | - | 0.417" L x 0.480" W (10.60mm x 12.20mm) | Gull Wing | 1:125 | Invasive | |
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Pulse Electronics
|
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20 A | 200CT:1 | 200Ohm Primary, 4.5Ohm Secondary | - | 20kHz ~ 200kHz | 0.700" (17.78mm) | 80 mH | Through Hole | - | 0.900" L x 0.700" W (22.86mm x 17.78mm) | PC Pin | - | Invasive | |
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Pulse Electronics
|
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20 A | 200CT:1 | 200Ohm Primary, 4.5Ohm Secondary | - | 20kHz ~ 200kHz | 0.700" (17.78mm) | 80 mH | Through Hole | - | 0.900" L x 0.700" W (22.86mm x 17.78mm) | PC Pin | - | Invasive | |
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Pulse Electronics
|
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20 A | 100:1 | 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 | |
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Pulse Electronics
|
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- | - | 4mOhm Primary, 1.9Ohm Secondary | - | 50kHz ~ 1MHz | 0.134" (3.40mm) | 10.4 mH | Surface Mount | - | 0.325" L x 0.325" W (8.25mm x 8.25mm) | - | 1:125 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 1.14Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 320 µH | Surface Mount | - | - | Gull Wing | 40:1 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 4.75Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 980 µH | Surface Mount | - | - | Gull Wing | 70:1 | Invasive | |
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Seeed Technology Co., Ltd
|
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15 A | - | - | - | - | - | - | Chassis Mount | - | - | Wire Leads with Connector | - | Non-Invasive (Split Core) | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 2.3Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 730 µH | Surface Mount | - | - | Gull Wing | 60:1 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 11.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 3 mH | Surface Mount | - | - | Gull Wing | 125:1 | Invasive | |
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Pulse Electronics
|
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- | - | 1.15mOhm Primary, 3.9Ohm Secondary | - | 50kHz ~ 500kHz | 0.280" (7.11mm) | 59.2 mH | Surface Mount | - | 0.495" L x 0.490" W (12.57mm x 12.45mm) | - | 1:1:200 | Invasive | |
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Würth Elektronik
|
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40 A | - | 0.28mOhm Primary, 21.2Ohm Secondary | 1240Vµs | 1MHz | 0.413" (10.50mm) | 135 mH | Surface Mount | AEC-Q200 | 0.570" L x 0.524" W (14.48mm x 13.30mm) | Gull Wing | 1:500 | Invasive | |
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Würth Elektronik
|
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40 A | - | 0.28mOhm Primary, 202mOhm Secondary | 124VµS | 1MHz | 0.413" (10.50mm) | 1.4 mH | Surface Mount | AEC-Q200 | 0.570" L x 0.524" W (14.48mm x 13.30mm) | Gull Wing | 1:50 | Invasive | |
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Würth Elektronik
|
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40 A | - | 0.28mOhm Primary, 130mOhm Secondary | 99Vµs | 1MHz | 0.413" (10.50mm) | 896 µH | Surface Mount | AEC-Q200 | 0.570" L x 0.524" W (14.48mm x 13.30mm) | Gull Wing | 1:40 | Invasive | |
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Würth Elektronik
|
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40 A | - | 0.28mOhm Primary, 93mOhm Secondary | 74Vµs | 1MHz | 0.413" (10.50mm) | 504 µH | Surface Mount | AEC-Q200 | 0.570" L x 0.524" W (14.48mm x 13.30mm) | Gull Wing | 1:30 | Invasive | |
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Pulse Electronics
|
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50 A | - | 0.5mOhm Primary, 2.6Ohm Secondary Max | - | 20kHz ~ 1MHz | 0.029" (0.73mm) | 4.5 mH | Surface Mount | - | 0.122" L x 0.252" W (3.10mm x 6.40mm) | Gull Wing | 1:100 | Invasive | |
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Pulse Electronics
|
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50 A | - | 0.5mOhm Primary, 600mOhm Secondary Max | - | 20kHz ~ 1MHz | 0.029" (0.73mm) | 1.1 mH | Surface Mount | - | 0.122" L x 0.252" W (3.10mm x 6.40mm) | Gull Wing | 1:50 | Invasive | |
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Bourns
|
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20 A | 60:1 | 7mOhm Primary, 1.98Ohm Secondary Max | 32.4VµS | 1MHz | 0.209" (5.31mm) | 730 mH | Surface Mount | - | 0.245" L x 0.235" W (6.22mm x 5.97mm) | Gull Wing | 1:60 | Invasive | |
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Bourns
|
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20 A | 40:1 | 7mOhm Primary, 1.14Ohm Secondary Max | 21.6VµS | 1MHz | 0.209" (5.31mm) | 320 mH | Surface Mount | - | 0.245" L x 0.235" W (6.22mm x 5.97mm) | Gull Wing | 1:40 | Invasive | |
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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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Bourns
|
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40 A | 150:1 | 1mOhm Primary, 2.25Ohm Secondary Max | 381VµS | 1MHz | 0.413" (10.50mm) | 19.2 mH | Surface Mount | - | - | Gull Wing | 1:150 | Invasive | |
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Bourns
|
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40 A | 60:1 | 1mOhm Primary, 850mOhm Secondary Max | 152.4VµS | 1MHz | 0.413" (10.50mm) | 3.06 mH | Surface Mount | - | - | Gull Wing | 1:60 | Invasive | |
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Würth Elektronik
|
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- | - | 6mOhm Primary, 1.75Ohm Secondary | 30VµS | - | 0.210" (5.33mm) | 720 µH | Surface Mount | - | 0.303" L x 0.272" W (7.70mm x 6.90mm) | Gull Wing | 1:60 | Invasive | |
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Talema
|
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10 A | - | - | - | 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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Wago Corporation
|
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35 A | - | - | - | 50Hz ~ 60Hz | 1.823" (46.30mm) | - | Chassis Mount | - | 1.063" L x 0.906" W (27.00mm x 23.00mm) | Terminal Block | - | Non-Invasive (Solid Core) | |
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LEM USA Inc.
|
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- | - | 170Ohm | - | 50/60Hz | 0.744" (18.91mm) | 566 µH | Free Hanging (In-Line) | - | 2.205" L x 1.326" W (56.01mm x 33.69mm) | Wire Leads | Rogowski Coil | Non-Invasive (Split Core) | |
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Pulse Electronics
|
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30 A | - | 0.35mOhm Primary, 600mOhm Secondary | - | 20kHz | 0.283" (7.20mm) | 630 µH | Surface Mount | - | 0.504" L x 0.382" W (12.80mm x 9.70mm) | Gull Wing | 50:1 | Invasive | |
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Murata
|
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- | - | 7mOhm Primary, 5.6Ohm Secondary | - | 50kHz ~ 500kHz | 0.213" (5.40mm) | 2 mH | Surface Mount | - | 0.283" L x 0.327" W (7.20mm x 8.30mm) | Gull Wing | 1:100 | Invasive | |
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Murata
|
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- | - | 7mOhm Primary, 34Ohm Secondary | - | 50kHz ~ 500kHz | 0.213" (5.40mm) | 8 mH | Surface Mount | - | 0.283" L x 0.327" W (7.20mm x 8.30mm) | Gull Wing | 1:200 | Invasive | |
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Pulse Electronics
|
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20 A | - | 0.75mOhm Primary, 6.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 3 mH | Surface Mount | AEC-Q200 | 0.284" L x 0.330" W (7.21mm x 8.38mm) | Gull Wing | 1:125 | Invasive | |
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Pulse Electronics
|
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20 A | - | 0.75mOhm Primary, 5.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 2 mH | Surface Mount | AEC-Q200 | 0.284" L x 0.330" W (7.21mm x 8.38mm) | Gull Wing | 1:100 | Invasive | |
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Pulse Electronics
|
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20 A | - | 0.75mOhm Primary, 2.25Ohm Secondary | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 720 µH | Surface Mount | AEC-Q200 | 0.284" L x 0.330" W (7.21mm x 8.38mm) | Gull Wing | 1:60 | Invasive | |
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Pulse Electronics
|
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20 A | - | 0.75mOhm Primary, 1.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 500 µH | Surface Mount | AEC-Q200 | 0.284" L x 0.330" W (7.21mm x 8.38mm) | Gull Wing | 1:50 | Invasive | |
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Pulse Electronics
|
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20 A | - | 0.75mOhm Primary, 4.75Ohm Secondary | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 980 µH | Surface Mount | - | 0.284" L x 0.330" W (7.21mm x 8.38mm) | Gull Wing | 1:70 | Invasive | |
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Pulse Electronics
|
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30 A | - | 0.35mOhm Primary, 3Ohm Secondary | - | 20kHz | 0.283" (7.20mm) | 2.5 mH | Surface Mount | - | 0.504" L x 0.382" W (12.80mm x 9.70mm) | Gull Wing | 100:1 | Invasive | |
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Pulse Electronics
|
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30 A | - | 0.35mOhm Primary, 10Ohm Secondary | - | 20kHz | 0.283" (7.20mm) | 10 mH | Surface Mount | - | 0.504" L x 0.382" W (12.80mm x 9.70mm) | Gull Wing | 200:1 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 870mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 180 µH | Surface Mount | - | - | Gull Wing | 30:1 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 400mOhm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 80 µH | Surface Mount | - | - | Gull Wing | 20:1 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 1.85Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 500 µH | Surface Mount | - | - | Gull Wing | 50:1 | Invasive | |
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Signal Transformer
|
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10 A | - | 700mOhm Primary, 5.5Ohm Secondary Max | - | 50kHz ~ 1MHz | 0.217" (5.50mm) | 2 mH | Surface Mount | - | - | Gull Wing | 100:1 | Invasive | |
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Triad Magnetics
|
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10 A | - | 4.75Ohm Secondary | - | 250kHz Min | 0.210" (5.33mm) | 980 µH | Surface Mount | - | 0.272" L x 0.303" W (6.90mm x 7.70mm) | Gull Wing | 1:70 | Invasive | |
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Triad Magnetics
|
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10 A | - | 1.14Ohm Secondary | - | 250kHz Min | 0.210" (5.33mm) | 320 µH | Surface Mount | - | 0.272" L x 0.303" W (6.90mm x 7.70mm) | Gull Wing | 1:40 | Invasive |
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