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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
B82801A1185A150CURR SENSE XFMR 1:150 SMD |
287 | - |
|
Datasheet |
B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 1.84 mH | 43.2VµS | 1:150 | - | 2.5mOhm Primary, 21Ohm Secondary | - | Surface Mount | 0.185" L x 0.138" W (4.70mm x 3.50mm) | 0.138" (3.50mm) | J Lead |
|
ECSTA1V0805-1050-RCURR SENSE XFMR 50:1 10A SMD |
350 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 10 A | 500 µH | - | 50:1 | - | 700mOhm Primary, 1.85Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.330" L x 0.315" W (8.38mm x 8.00mm) | 0.217" (5.50mm) | Gull Wing |
|
ECSTA1V0805-1100-RCURR SENSE XFMR 100:1 10A SM |
344 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 10 A | 2 mH | - | 100:1 | - | 700mOhm Primary, 5.5Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.330" L x 0.315" W (8.38mm x 8.00mm) | 0.217" (5.50mm) | Gull Wing |
|
SCS-1253KCURR SENSE XFMR 125:1 10A SMD |
1,000 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 10 A | 3 mH | - | 125:1 | - | 700mOhm Primary, 11.5Ohm Secondary Max | - | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
|
SCS-70980CURR SENSE XFMR 70:1 10A SMD |
1,000 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 10 A | 980 µH | - | 70:1 | - | 700mOhm Primary, 4.75Ohm Secondary Max | - | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
|
ECST1V0703-1070-RCURR SENSE XFMR 70:1 9A SMD |
350 | - |
|
Datasheet |
ECST | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 9 A | 652 µH | - | 70:1 | - | 1.5mOhm Primary, 5.04Ohm Secondary Max | - | Surface Mount | 0.283" L x 0.205" W (7.20mm x 5.20mm) | 0.118" (3.00mm) | J Lead |
|
ECST1V0703-1100-RCURR SENSE XFMR 100:1 9A SMD |
346 | - |
|
Datasheet |
ECST | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 9 A | 1.33 mH | - | 100:1 | - | 1.5mOhm Primary, 10.68Ohm Secondary Max | - | Surface Mount | 0.283" L x 0.205" W (7.20mm x 5.20mm) | 0.118" (3.00mm) | J Lead |
|
B82801A1134A040CURR SENSE XFMR SMD |
593 | - |
|
Datasheet |
B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 132 µH | - | - | - | - | - | Surface Mount | 0.185" L x 0.138" W (4.70mm x 3.50mm) | 0.138" (3.50mm) | J Lead |
|
B82801A1304A060CURR SENSE XFMR SMD |
533 | - |
|
Datasheet |
B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 295 µH | - | - | - | - | - | Surface Mount | 0.185" L x 0.138" W (4.70mm x 3.50mm) | 0.138" (3.50mm) | J Lead |
|
B82801A1214A050CURR SENSE XFMR SMD |
486 | - |
|
Datasheet |
B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 205 µH | - | - | - | - | - | Surface Mount | 0.185" L x 0.138" W (4.70mm x 3.50mm) | 0.138" (3.50mm) | J Lead |
|
PE-68280NLCURR SENSE XFMR 1:1:100 SMD |
870 | - |
|
Datasheet |
PE-68XXXNL | Tube | 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) | - |
|
ECSTA1V0703-1100-RCURR SENSE XFMR 100:1 9A SMD |
350 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 9 A | 1.33 mH | - | 100:1 | - | 1.5mOhm Primary, 10.68Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.283" L x 0.205" W (7.20mm x 5.20mm) | 0.118" (3.00mm) | J Lead |
|
ECSTA1V0703-1070-RCURR SENSE XFMR 70:1 9A SMD |
340 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 9 A | 652 µH | - | 70:1 | - | 1.5mOhm Primary, 5.04Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.283" L x 0.205" W (7.20mm x 5.20mm) | 0.118" (3.00mm) | J Lead |
|
P0583NLCURR SENSE XFMR 50:1:1 36A T/H |
865 | - |
|
Datasheet |
THT | Tray | Active | 50kHz ~ 500kHz | Invasive | 36 A | 5 mH | - | 50:1:1 | - | 700mOhm Primary, 1.7mOhm Secondary | - | Through Hole | 0.810" L x 0.580" W (20.57mm x 14.73mm) | 0.750" (19.05mm) | PC Pin |
|
7492540070CURR SENSE XFMR 1:70 40A SMD |
180 | - |
|
Datasheet |
MID-CST | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 2.74 mH | 173VµS | 1:70 | - | 0.28mOhm Primary, 367mOhm Secondary | AEC-Q200 | Surface Mount | 0.570" L x 0.524" W (14.48mm x 13.30mm) | 0.413" (10.50mm) | Gull Wing |
|
7492540030CURR SENSE XFMR 1:30 40A SMD |
419 | - |
|
Datasheet |
MID-CST | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 504 µH | 74Vµs | 1:30 | - | 0.28mOhm Primary, 93mOhm Secondary | AEC-Q200 | Surface Mount | 0.570" L x 0.524" W (14.48mm x 13.30mm) | 0.413" (10.50mm) | Gull Wing |
|
MR/C-01CURR SENSE XFMR 15A TH |
124 | - |
|
Datasheet |
MR/C | Bulk | Active | - | Invasive | 15 A | - | - | - | - | 30Ohm | - | Through Hole | 0.748" L x 0.689" W (19.00mm x 17.50mm) | 0.264" (6.70mm) | PC Pin |
|
ECST1V0504-1070-RCURR SENSE XFMR 70:1 7A SMD |
350 | - |
|
Datasheet |
ECST | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 400 µH | - | 70:1 | - | 3mOhm Primary, 4.6Ohm Secondary Max | - | Surface Mount | 0.189" L x 0.144" W (4.80mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
ECST1V0504-1100-RCURR SENSE XFMR 100:1 7A SMD |
348 | - |
|
Datasheet |
ECST | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 820 µH | - | 100:1 | - | 3mOhm Primary, 9.5Ohm Secondary Max | - | Surface Mount | 0.189" L x 0.144" W (4.80mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
ECST1V0504-1050-RCURR SENSE XFMR 50:1 7A SMD |
348 | - |
|
Datasheet |
ECST | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 205 µH | - | 50:1 | - | 3mOhm Primary, 2.5Ohm Secondary Max | - | Surface Mount | 0.189" L x 0.144" W (4.80mm x 3.65mm) | 0.140" (3.55mm) | J Lead |

