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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
CR8420-1000CURR SENSE XFMR 50A IN-LINE |
214 | - |
|
Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 50 A | - | - | - | 1000:1 | 22Ohm | - | Free Hanging (In-Line) | 1.417" L x 1.181" W (36.00mm x 30.00mm) | 0.362" (9.20mm) | Wire Leads |
|
CR8348-2500-NCURR SENSE XFMR 40A T/H |
3,795 | - |
|
Datasheet |
CR8300 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 40 A | - | - | - | 2500:1 | 134Ohm | - | Through Hole | 0.925" L x 0.433" W (23.50mm x 11.00mm) | 0.984" (25.00mm) | PC Pin |
|
CR8349-2500-NCURR SENSE XFMR 75A T/H |
1,105 | - |
|
Datasheet |
CR8300 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 75 A | - | - | - | 2500:1 | 190Ohm | - | Through Hole | 1.024" L x 0.670" W (26.00mm x 17.00mm) | 1.102" (28.00mm) | PC Pin |
|
CR8420-1000-GCURR SENSE XFMR 20A IN-LINE |
4,256 | - |
|
Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 20 A | - | - | - | 1000:1 | 44Ohm | - | Free Hanging (In-Line) | 1.417" L x 1.181" W (36.00mm x 30.00mm) | 0.362" (9.20mm) | Wire Leads |
|
|
CR8450-1000CURR SENSE XFMR 100A IN-LINE |
5,729 | - |
|
Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 100 A | - | - | - | 1000:1 | 21Ohm | - | Free Hanging (In-Line) | 1.700" L x 1.450" W (43.18mm x 36.83mm) | 0.550" (13.97mm) | Wire Leads |
|
|
CR8349-1000-NCURR SENSE XFMR 50A T/H |
570 | - |
|
Datasheet |
CR8300 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 50 A | - | - | - | 1000:1 | 32Ohm | - | Through Hole | 1.024" L x 0.670" W (26.00mm x 17.00mm) | 1.102" (28.00mm) | PC Pin |
|
|
CR2550-RCURR SENSE XFMR IN-LINE |
186 | - |
|
Datasheet |
CR2550 | Bulk | Active | 50Hz ~ 400Hz | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Free Hanging (In-Line) | 1.094" L x 0.866" W (27.80mm x 22.00mm) | - | - |
|
CR8350-2500-NCURR SENSE XFMR 100A T/H |
2,694 | - |
|
Datasheet |
CR8300 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 100 A | - | - | - | 2500:1 | 57Ohm | - | Through Hole | 1.476" L x 0.551" W (37.50mm x 14.00mm) | 1.535" (39.00mm) | PC Pin |
|
CR8459-2000-NCURR SENSE XFMR 200A IN-LINE |
852 | - |
|
Datasheet |
CR8400 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 200 A | - | - | - | 2000:1 | 74Ohm | - | Free Hanging (In-Line) | 2.362" L x 1.890" W (60.00mm x 48.00mm) | 0.689" (17.50mm) | Wire Leads |
|
TT 100-SDCURR SENSE XFMR |
243 | - |
|
Datasheet |
TT | Bulk | Not For New Designs | 50/60Hz | Non-Invasive (Split Core) | - | - | - | - | - | - | - | - | 1.574" L x 1.122" W (40.50mm x 28.50mm) | 2.047" (52.00mm) | PC Pin |
|
56200CCURR SENSE XFMR 10A T/H |
1,604 | - |
|
Datasheet |
5600 | Tube | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 10 A | 72 mH | - | - | 200:1 | 1.87mOhm Primary, 2.81mOhm Secondary | - | Through Hole | 0.661" L x 0.350" W (16.79mm x 8.89mm) | 0.795" (20.19mm) | PC Pin |
|
56050CCURR SENSE XFMR 10A T/H |
363 | - |
|
Datasheet |
5600 | Tube | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 10 A | - | - | - | 50:1 | - | - | Through Hole | 0.661" L x 0.350" W (16.79mm x 8.89mm) | 0.795" (20.16mm) | PC Pin |
|
PM8208NLCURR SENSE XFMR 1:100 10A SMD |
1,990 | - |
|
Datasheet |
PM820X | Tray | Active | 50kHz ~ 1MHz | Invasive | 10 A | 2 mH | - | 1:100 | - | 6mOhm Primary, 5.5Ohm Secondary Max | AEC-Q200 | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
|
53050CCURR SENSE XFMR 1:50 10A SMD |
1,748 | - |
|
Datasheet |
5300 | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 500 µH | - | 1:50 | - | 7mOhm Primary, 1.75Ohm Secondary | - | Surface Mount | 0.283" L x 0.327" W (7.20mm x 8.30mm) | 0.213" (5.40mm) | Gull Wing |
|
53200CCURR SENSE XFMR 1:200 10A SMD |
1,145 | - |
|
Datasheet |
5300 | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 8 mH | - | 1:200 | - | 7mOhm Primary, 34Ohm Secondary | - | Surface Mount | 0.283" L x 0.327" W (7.20mm x 8.30mm) | 0.213" (5.40mm) | Gull Wing |
|
PA1005.020QNLTCURR SENSE XFMR 1:20 20A SMD |
3,009 | - |
|
Datasheet |
PA1005QNL | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 20 A | 80 µH | - | 1:20 | - | 0.75mOhm Primary, 550mOhm Secondary Max | AEC-Q200 | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
749251100CURR SENSE XFMR 1:100 10A SMD |
508 | - |
|
Datasheet |
WE-CST | Tape & Reel (TR) | Active | - | Invasive | - | 2 mH | 50VµS | 1:100 | - | 6mOhm Primary, 5.5Ohm Secondary | - | Surface Mount | 0.303" L x 0.272" W (7.70mm x 6.90mm) | 0.210" (5.33mm) | Gull Wing |
|
PA1005.100QNLCURR SENSE XFMR 1:100 20A SMD |
1,985 | - |
|
Datasheet |
- | Tray | Active | 50kHz ~ 1MHz | Invasive | 20 A | 2 mH | - | 1:100 | - | 0.75mOhm Primary, 5.5Ohm Secondary | AEC-Q200 | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
PA1005.050NLTCURR SENSE XFMR 1:50 20A SMD |
18,974 | - |
|
Datasheet |
PA1005.XXXNL | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 20 A | 500 µH | - | 1:50 | - | 0.75mOhm Primary, 1.5Ohm Secondary | - | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
PA1005.100NLCURR SENSE XFMR 1:100 20A SMD |
941 | - |
|
Datasheet |
- | Tray | Active | 50kHz ~ 1MHz | Invasive | 20 A | 2 mH | - | 1:100 | - | 0.75mOhm Primary, 5.5Ohm Secondary | - | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |

