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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
53100CCURR SENSE XFMR 1:100 10A SMD |
3,949 | - |
|
Datasheet |
5300 | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 2 mH | - | 1:100 | - | 7mOhm Primary, 5.6Ohm Secondary | - | Surface Mount | 0.283" L x 0.327" W (7.20mm x 8.30mm) | 0.213" (5.40mm) | Gull Wing |
|
|
B82801B0925A200CURR SENSE XFMR 1:200 20A SMD |
3,317 | - |
|
Datasheet |
B82801B | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 20 A | 8 mH | 100VµS | 1:200 | - | 0.6mOhm Primary, 33.24Ohm Secondary | - | Surface Mount | 0.280" L x 0.320" W (7.11mm x 8.13mm) | 0.200" (5.08mm) | Gull Wing |
|
PA1005.100NLTCURR SENSE XFMR 1:100 20A SMD |
9,058 | - |
|
Datasheet |
PA1005.XXXNL | Tape & Reel (TR) | 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 |
|
|
B82801B0205A100CURR SENSE XFMR 1:100 SMD |
3,347 | - |
|
Datasheet |
B82801B | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 2 mH | - | 1:100 | - | 0.8mOhm Primary, 5.5Ohm Secondary | - | Surface Mount | 0.280" L x 0.320" W (7.11mm x 8.13mm) | 0.200" (5.08mm) | Gull Wing |
|
ACST-261-1CURRENT SENSE TRANSFORMER |
3,182 | - |
|
Datasheet |
ACST-200 | Tray | Active | 50Hz ~ 200Hz | Invasive | 30 A | 2.4 H | - | 1:1000 | 1000:1 | 0.6mOhm | - | Through Hole | 0.807" L x 0.690" W (20.50mm x 17.53mm) | 0.650" (16.51mm) | PC Pin |
|
ASM-010CURR SENSE XFMR 10A T/H |
21,985 | - |
|
Datasheet |
ASM | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 10 A | - | - | - | - | - | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
|
P8205NLTCURR SENSE XFMR 1:50 SMD |
3,151 | - |
|
Datasheet |
P820X | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 500 µH | - | 1:50 | - | 6mOhm Primary, 1.5Ohm Secondary | - | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
CSE187LCURR SENSE XFMR 1:500 30A T/H |
42,956 | - |
|
Datasheet |
CSE | Bulk | Active | 50Hz ~ 400Hz | Invasive | 30 A | - | - | 1:500 | - | 3mOhm Primary, 21Ohm Secondary | - | Through Hole | 0.860" L x 0.720" W (21.84mm x 18.29mm) | 0.710" (18.03mm) | PC Pin |
|
B82801C0565A100CURR SENSE XFMR 1:100 SMD |
926 | - |
|
Datasheet |
B82801C | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 5.6 mH | - | 1:100 | - | 0.28mOhm Primary, 1Ohm Secondary | - | Surface Mount | 0.560" L x 0.530" W (14.22mm x 13.46mm) | 0.394" (10.00mm) | Gull Wing |
|
PE-51688NLCURR SENSE XFMR 20A T/H |
926 | - |
|
Datasheet |
THT | Tray | Active | 20kHz ~ 200kHz | Invasive | 20 A | 80 mH | - | - | 200:1 | 200Ohm Primary, 4.5Ohm Secondary | - | Through Hole | 0.670" L x 0.390" W (17.01mm x 9.90mm) | 0.800" (20.32mm) | PC Pin |
|
PE-68280NLTCURR SENSE XFMR 1:1:100 SMD |
7,277 | - |
|
Datasheet |
PE-68XXXNL | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 14.8 mH | - | 1:1:100 | - | 1.15mOhm Primary, 930mOhm Secondary | - | Surface Mount | 0.495" L x 0.490" W (12.57mm x 12.45mm) | 0.280" (7.11mm) | - |
|
AS-100CURR SENSE XFMR 1:50 T/H |
338 | - |
|
Datasheet |
AS | Tray | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | - | 6 mH | 175VµS | 1:50 | - | 600mOhm Max | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
|
P0582NLCURR SENSE XFMR 100:1:1 35A T/H |
825 | - |
|
Datasheet |
THT | Tray | Active | 50kHz ~ 500kHz | Invasive | 35 A | 19 mH | - | 100:1:1 | - | 1.4Ohm Primary, 1.7mOhm Secondary | - | Through Hole | 0.810" L x 0.580" W (20.57mm x 14.73mm) | 0.750" (19.05mm) | PC Pin |
|
|
AX-0500CURR SENSE XFMR 5A T/H |
1,616 | - |
|
Datasheet |
AX | Tray | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 5 A | - | - | - | 500:1 | - | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
|
CSE187L-PCURR SENSE XFMR 1:500 30A T/H |
1,050 | - |
|
Datasheet |
CSE | Bulk | Active | 50Hz ~ 400Hz | Invasive | 30 A | - | - | 1:500 | - | 3mOhm Primary, 21Ohm Secondary | - | Through Hole | 0.875" L x 0.875" W (22.23mm x 22.23mm) | 0.720" (18.29mm) | PC Pin |
|
AC1020CURR SENSE XFMR 20A T/H |
14,610 | - |
|
Datasheet |
AC | Box | Active | 50/60Hz | Non-Invasive (Solid Core) | 20 A | - | - | - | 1000:1 | 41.8Ohm | - | Through Hole | 0.937" L x 0.438" W (23.80mm x 11.12mm) | 0.937" (23.80mm) | PC Pin |
|
T60404E4626X502CURR SENSE XFMR 1:2500 100A TH |
5,210 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Solid Core) | 100 A | 102 H | - | 1:2500 | 2500:1 | 41.7Ohm | - | Through Hole | 1.339" L x 0.551" W (34.00mm x 14.00mm) | 1.339" (34.00mm) | PC Pin |
|
AC1015CURR SENSE XFMR 15A T/H |
2,752 | - |
|
Datasheet |
AC | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 15 A | - | - | - | 1000:1 | 41.8Ohm | - | Through Hole | 0.937" L x 0.438" W (23.80mm x 11.12mm) | 0.937" (23.80mm) | PC Pin |
|
AC1005CURR SENSE XFMR 5A T/H |
373 | - |
|
Datasheet |
AC | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 5 A | - | - | - | 1000:1 | 41.8Ohm | - | Through Hole | 0.937" L x 0.438" W (23.80mm x 11.12mm) | 0.937" (23.80mm) | PC Pin |
|
CT-1005CURR SENSE XFMR 5A T/H |
3,985 | - |
|
Datasheet |
CT | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | 5 A | - | - | - | 1000:1 | 41.8Ohm | - | Through Hole | 0.937" L x 0.438" W (23.80mm x 11.12mm) | 0.937" (23.80mm) | PC Pin |

