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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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PA3206NLCURR XFMR ROGOWSKI COIL 40A CHAS |
10,644 | - |
|
Datasheet |
Sidewinder®, PA32XXNL | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 40 A | 1.14 mH | - | Rogowski Coil | - | 54Ohm Max | - | Chassis Mount | 1.181" L x 0.563" W (30.00mm x 14.30mm) | 1.220" (31.00mm) | Wire Leads |
|
PE-51718NLCURR SENSE XFMR 20A T/H |
109 | - |
|
Datasheet |
THT | Tray | Active | 20kHz ~ 200kHz | Invasive | 20 A | 20 mH | - | - | 100CT:1 | 100Ohm Primary, 1.4Ohm Secondary | - | Through Hole | 0.670" L x 0.390" W (17.01mm x 9.90mm) | 0.800" (20.32mm) | PC Pin |
|
PA3202NLCURR XFMR ROGOWSKI 200A CHAS |
755 | - |
|
Datasheet |
Sidewinder®, PA32XXNL | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 200 A | 1.75 mH | - | Rogowski Coil | - | 54Ohm Max | - | Chassis Mount | 1.669" L x 1.587" W (42.40mm x 40.30mm) | 0.580" (14.73mm) | Wire Leads |
|
P0581NLCURR SENSE XFMR 200:1:1 34A T/H |
112 | - |
|
Datasheet |
THT | Tray | Active | 50kHz ~ 500kHz | Invasive | 34 A | 76 mH | - | 200:1:1 | - | 2.8Ohm Primary, 1.7mOhm Secondary | - | Through Hole | 0.810" L x 0.580" W (20.57mm x 14.73mm) | 0.750" (19.05mm) | PC Pin |
|
T60404E4622X501CURR SENSE XFMR 2000:1 20A TH |
10,079 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 20 A | 110 H | - | 1:2000 | 2000:1 | 126Ohm | - | Through Hole | 0.965" L x 0.484" W (24.50mm x 12.30mm) | 0.994" (25.25mm) | PC Pin |
|
PA3208NLCURR XFMR ROGOWSKI 100A CHAS |
543 | - |
|
Datasheet |
Sidewinder®, PA32XXNL | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 100 A | 1.14 mH | - | Rogowski Coil | - | 54Ohm Max | - | Chassis Mount | 1.205" L x 1.189" W (30.60mm x 30.20mm) | 0.580" (14.73mm) | Wire Leads |
|
PAS6322.150NLTCURR SENSE XFMR 1:150 50A SMD |
261 | - |
|
Datasheet |
PAS6322.XXXNLT | Tape & Reel (TR) | Active | 20kHz ~ 1MHz | Invasive | 50 A | 10 mH | - | 1:150 | - | 0.5mOhm Primary, 6Ohm Secondary Max | - | Surface Mount | 0.122" L x 0.252" W (3.10mm x 6.40mm) | 0.472" (12.00mm) | Gull Wing |
|
PAS6322.100NLTCURR SENSE XFMR 1:100 50A SMD |
516 | - |
|
Datasheet |
PAS6322.XXXNLT | Tape & Reel (TR) | Active | 20kHz ~ 1MHz | Invasive | 50 A | 4.5 mH | - | 1:100 | - | 0.5mOhm Primary, 2.6Ohm Secondary Max | - | Surface Mount | 0.122" L x 0.252" W (3.10mm x 6.40mm) | 0.029" (0.73mm) | Gull Wing |
|
PAS6322.050NLTCURR SENSE XFMR 1:50 50A SMD |
194 | - |
|
Datasheet |
PAS6322.XXXNLT | Tape & Reel (TR) | Active | 20kHz ~ 1MHz | Invasive | 50 A | 1.1 mH | - | 1:50 | - | 0.5mOhm Primary, 600mOhm Secondary Max | - | Surface Mount | 0.122" L x 0.252" W (3.10mm x 6.40mm) | 0.029" (0.73mm) | Gull Wing |
|
7492540100CURR SENSE XFMR 1:100 40A SMD |
1,028 | - |
|
Datasheet |
MID-CST | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 5.6 mH | 248Vµs | 1:100 | - | 0.28mOhm Primary, 805mOhm Secondary | AEC-Q200 | Surface Mount | 0.570" L x 0.524" W (14.48mm x 13.30mm) | 0.413" (10.50mm) | Gull Wing |
|
AZ-0500CURR SENSE XFMR 25A IN-LINE |
601 | - |
|
Datasheet |
AZ | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 25 A | - | - | 500:1 | - | 18Ohm Primary | - | Free Hanging (In-Line) | 0.748" Dia (19.00mm) | 0.453" (11.50mm) | Wire Leads |
|
PAS6322.200NLTCURR SENSE XFMR 1:20 50A SMD |
872 | - |
|
Datasheet |
PAS6322.XXXNLT | Tape & Reel (TR) | Active | 20kHz ~ 1MHz | Invasive | 50 A | 17.5 mH | - | 1:200 | - | 0.5mOhm Primary, 12Ohm Secondary Max | - | Surface Mount | 0.122" L x 0.252" W (3.10mm x 6.40mm) | 0.029" (0.73mm) | Gull Wing |
|
CST306-3TCURR SENSE XFMR 25A T/H |
2,574 | - |
|
Datasheet |
CST | Bulk | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 25 A | 55 mH | 2000VµS | - | 200CT:1 | 3.75Ohm Max | - | Through Hole | 0.690" L x 0.385" W (17.53mm x 9.78mm) | 0.915" (23.24mm) | PC Pin |
|
|
CST-1005CURR SENSE XFMR 5A T/H |
1,665 | - |
|
Datasheet |
CST | Bulk | Active | 50/60Hz | Non-Invasive (Solid Core) | 5 A | - | - | - | 1000:1 | 40Ohm | - | Through Hole | 0.925" L x 0.472" W (23.50mm x 12.00mm) | 0.976" (24.80mm) | PC Pin |
|
CST306-2ACURR SENSE XFMR 25A T/H |
4,594 | - |
|
Datasheet |
CST | Bulk | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 25 A | 14 mH | 1000VµS | - | 100:1 | 1.55Ohm Max | - | Through Hole | 0.690" L x 0.385" W (17.53mm x 9.78mm) | 0.915" (23.24mm) | PC Pin |
|
AC1025CURR SENSE XFMR 25A T/H |
1,194 | - |
|
Datasheet |
AC | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 25 A | - | - | - | 1000:1 | 48Ohm | - | Through Hole | 1.189" L x 0.563" W (30.20mm x 14.30mm) | 1.189" (30.20mm) | PC Pin |
|
AC1040CURR SENSE XFMR 40A T/H |
166 | - |
|
Datasheet |
AC | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 40 A | - | - | - | 1000:1 | 49.3Ohm | - | Through Hole | 1.374" L x 0.563" W (34.90mm x 14.30mm) | 1.374" (34.90mm) | PC Pin |
|
|
CST-1020CURR SENSE XFMR 20A T/H |
1,304 | - |
|
Datasheet |
CST | Bulk | Active | 50/60Hz | Non-Invasive (Solid Core) | 20 A | - | - | - | 1000:1 | 40Ohm | - | Through Hole | 0.925" L x 0.472" W (23.50mm x 12.00mm) | 0.976" (24.80mm) | PC Pin |
|
CST206-1TCURR SENSE XFMR 110A T/H |
1,435 | - |
|
Datasheet |
CST | Bulk | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 110 A | 14 mH | 2000VµS | - | 100:1 | 580mOhm Max | - | Through Hole | 1.075" L x 0.400" W (27.31mm x 10.16mm) | 1.225" (31.12mm) | PC Pin |
|
CT-1030CURR SENSE XFMR 30A T/H |
9,052 | - |
|
Datasheet |
CT | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 30 A | - | - | - | 1000:1 | 48Ohm | - | Through Hole | 1.189" L x 0.563" W (30.20mm x 14.30mm) | 1.189" (30.20mm) | PC Pin |

