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0755-82798135Current Sense Transformers
Current Sense Transformers
Current Sense Transformers are magnetic components used to detect, monitor and measure current in electronic and electrical systems. They provide isolation between the primary current path and sensing circuitry, making them suitable for power monitoring, overload detection, feedback control and protection functions. They are widely used in power supplies, motor drives, industrial control equipment, energy meters, inverters, battery systems, communication equipment and embedded applications.
This category includes current transformers, current sensing transformers, AC current sense transformers, PCB current transformers, split-core current transformers and related magnetic sensing components. These products are commonly selected based on current range, turns ratio, frequency range, isolation voltage, accuracy, burden resistance, mounting type, package style and application requirements.
TomatoElec supplies original Current Sense Transformers from recognized manufacturers such as Pulse Electronics, Bourns, Würth Elektronik, TDK, Murata, Triad Magnetics, Coilcraft, Hammond Manufacturing and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CT1005CURRENT TRANSFORMER PRIM: 5A |
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CT | Tray | Active | 50kHz ~ 60kHz | Non-Invasive (Solid Core) | 5 A | - | - | 1:1000 | 1000:1 | 41.8Ohm | - | Through Hole | 0.937" L x 0.438" W (23.80mm x 11.12mm) | 0.937" (23.80mm) | PC Pin |
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AC1150CURR SENSE XFMR 150A T/H |
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Datasheet |
AC | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 150 A | - | - | - | 1000:1 | 11Ohm | - | Through Hole | 2.189" L x 0.811" W (55.60mm x 20.60mm) | 2.189" (55.60mm) | PC Pin |
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CST-1025-BCURR SENSE XFMR 25A T/H |
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Datasheet |
CST | Bulk | Active | 50/60Hz | Non-Invasive (Solid Core) | 25 A | - | - | - | 1000:1 | 46Ohm | - | Through Hole | 1.189" L x 0.563" W (30.20mm x 14.30mm) | 1.189" (30.20mm) | PC Pin |
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CST-1030-BCURR SENSE XFMR 30A T/H |
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Datasheet |
CST | Bulk | Active | 50/60Hz | Non-Invasive (Solid Core) | 30 A | - | - | - | 1000:1 | 46Ohm | - | Through Hole | 1.189" L x 0.563" W (30.20mm x 14.30mm) | 1.189" (30.20mm) | PC Pin |
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CR8448-2000-FCURR SENSE XFMR 50A IN-LINE |
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Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 200kHz | Non-Invasive (Solid Core) | 50 A | - | - | - | 2000:1 | 90Ohm | - | Free Hanging (In-Line) | 1.160" L x 0.922" W (29.46mm x 23.42mm) | 0.435" (11.05mm) | Wire Leads |
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CR8348-2000-FCURR SENSE XFMR 50A T/H |
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Datasheet |
CR8300 | Bulk | Active | 20Hz ~ 200kHz | Non-Invasive (Solid Core) | 50 A | - | - | - | 2000:1 | 88Ohm | - | Through Hole | 0.925" L x 0.433" W (23.50mm x 11.00mm) | 0.984" (25.00mm) | PC Pin |
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PL1839NLTPOWER |
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Datasheet |
- | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | 35 A | 1.4 mH | - | 50:1 | 1:50 | 0.42mOhm Primary, 700mOhm Secondary | - | Surface Mount | 0.560" L x 0.530" W (14.22mm x 13.46mm) | 0.394" (10.00mm) | Gull Wing |
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PL1839TPOWER |
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Datasheet |
- | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | 35 A | 1.4 mH | - | 50:1 | 1:50 | 0.42mOhm Primary, 700mOhm Secondary | - | Surface Mount | 0.560" L x 0.530" W (14.22mm x 13.46mm) | 0.394" (10.00mm) | Gull Wing |
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CR8320-1600 OR CR8320-1600-NGENERAL PURPOSE CURRENT TRANSFOR |
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- | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - |
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CT1030CURRENT TRANSFORMER PRIM: 30A |
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CT | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 30 A | - | - | 1:1000 | 1000:1 | 48Ohm | - | Through Hole | 1.189" L x 0.563" W (30.20mm x 14.30mm) | 1.189" (30.20mm) | PC Pin |
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CT1025CURRENT TRANSFORMER PRIM: 25A |
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CT | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 25 A | - | - | 1:1000 | 1000:1 | 48Ohm | - | Through Hole | 1.189" L x 0.563" W (30.20mm x 14.30mm) | 1.189" (30.20mm) | PC Pin |
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PL1839NLPOWER |
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Datasheet |
- | Tube | Active | 50kHz ~ 500kHz | Invasive | 35 A | 1.4 mH | - | 50:1 | 1:50 | 0.42mOhm Primary, 700mOhm Secondary | - | Surface Mount | 0.560" L x 0.530" W (14.22mm x 13.46mm) | 0.394" (10.00mm) | Gull Wing |
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PL1839POWER |
0 | - |
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Datasheet |
- | Tube | Active | 50kHz ~ 500kHz | Invasive | 35 A | 1.4 mH | - | 50:1 | 1:50 | 0.42mOhm Primary, 700mOhm Secondary | - | Surface Mount | 0.560" L x 0.530" W (14.22mm x 13.46mm) | 0.394" (10.00mm) | Gull Wing |
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CR8401-1000CURR SENSE XFMR 10A IN-LINE |
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Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 10 A | - | - | - | 1000:1 | 49Ohm | - | Free Hanging (In-Line) | 0.880" L x 0.690" W (22.35mm x 17.53mm) | 0.325" (8.26mm) | Wire Leads |
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SEN-11005NON-INVASIVE CURRENT SENSOR - 30 |
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- | Bulk | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 30 A | - | - | 1:2000 | 30:15 | 250mOhm Max | - | Free Hanging (In-Line) | 1.024" L x 1.004" W (26.00mm x 25.50mm) | 1.575" (40.00mm) | Wire Leads with Connector |
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CT1050CURRENT TRANSFORMER PRIM: 50A |
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CT | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 50 A | - | - | 1:1000 | 1000:1 | 49.3Ohm | - | Through Hole | 1.374" L x 0.563" W (34.90mm x 14.30mm) | 1.374" (34.90mm) | PC Pin |
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CT1040CURRENT TRANSFORMER PRIM: 40A |
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CT | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 40 A | - | - | 1:1000 | 1000:1 | 49.3Ohm | - | Through Hole | 1.374" L x 0.563" W (34.90mm x 14.30mm) | 1.374" (34.90mm) | PC Pin |
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2723380000CMA-31-41-SNAP-ON |
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Datasheet |
- | Box | Active | - | - | - | - | - | - | - | - | - | - | - | - | - |
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CR8448-2000CURR SENSE XFMR 50A IN-LINE |
0 | - |
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Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 50 A | - | - | - | 2000:1 | 106Ohm | - | Free Hanging (In-Line) | 1.160" L x 0.922" W (29.46mm x 23.42mm) | 0.435" (11.05mm) | Wire Leads |
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PL2035CURR SENSE XFMR 1:50 20A SMD |
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Datasheet |
- | Tube | Active | 50kHz ~ 1MHz | Invasive | 20 A | 500 µH | - | 1:50 | - | 0.75mOhm Primary Max, 1.5Ohm Secondary Max | - | Surface Mount | 0.330" L x 0.284" W (8.38mm x 7.21mm) | 0.217" (5.50mm) | Gull Wing |

