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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
AS-103CURR SENSE XFMR 1:300 T/H |
385 | - |
|
Datasheet |
AS | Bulk | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | - | 250 mH | 900VµS | 1:300 | - | 10Ohm Max | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
|
PE-68210NLTCURR SENSE XFMR 1:1:50 SMD |
393 | - |
|
Datasheet |
PE-68XXXNL | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 3.8 mH | - | 1:1:50 | - | 1.15mOhm Primary, 380mOhm Secondary | - | Surface Mount | 0.495" L x 0.490" W (12.57mm x 12.45mm) | 0.280" (7.11mm) | - |
|
RL-11385CURRENT SENSE XFMR 100:1 1.75MH |
1,000 | - |
|
- |
- | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
B82801A1333A020CURR SENSE XFMR 1:20 SMD |
509 | - |
|
Datasheet |
B82801A | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 33 µH | - | 1:20 | - | 2.5mOhm Primary, 320mOhm Secondary | - | Surface Mount | 0.138" L x 0.185" W (3.50mm x 4.70mm) | 0.138" (3.50mm) | J Lead |
|
AS-112CURR SENSE XFMR 1:200CT 15A T/H |
500 | - |
|
Datasheet |
AS | Bulk | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | - | 100 mH | 700VµS | 1:200CT | - | 2.25Ohm Max | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
|
055650TRANSF CRNT SENSE 50:1 6MH |
120 | - |
|
Datasheet |
0556xx, Kaschke | Tray | Active | 10kHz ~ 300kHz | Invasive | - | 6 mH | 180VµS | - | - | 140Ohm | - | Through Hole | 1.063" L x 0.709" W (27.00mm x 18.00mm) | 0.689" (17.50mm) | PC Pin |
|
XZM-CT50A01CURRENT SENSE TRANSFORMER |
966 | - |
|
Datasheet |
XZM | Tray | Active | 50Hz ~ 60Hz | Invasive | 50 A | - | - | 1000:1 | - | - | - | Through Hole | 0.906" L x 0.906" W (23.00mm x 23.00mm) | 0.787" (20.00mm) | PC Pin |
|
055653TRANSF CRNT SENSE 300:1 216MH |
120 | - |
|
Datasheet |
0556xx, Kaschke | Tray | Active | 10kHz ~ 300kHz | Invasive | - | 216 mH | 1070VµS | - | - | 3.4Ohm | - | Through Hole | 1.063" L x 0.709" W (27.00mm x 18.00mm) | 0.689" (17.50mm) | PC Pin |
|
ASM-010CURR SENSE XFMR 10A T/H |
270 | - |
|
- |
ASM | Tray | Active | 50/60Hz | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
|
RL-7747-500CURRENT SENSE XFMR 500:1 TH |
996 | - |
|
Datasheet |
- | Bulk | Active | 47Hz ~ 400Hz | Invasive | 40 A | - | - | 500:1 | 1:500 | 0.3mOhm Primary, 21mOhm Secondary | - | Through Hole | 0.860" L x 0.850" W (21.84mm x 21.59mm) | 0.710" (18.03mm) | PC Pin |
|
SCS-4-4-40T-TRSMD CURRENT TRANSFORMER 132H-TR |
1,997 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 132 µH | - | 40:1 | - | 3mOhm Primary, 1.6Ohm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
SCS-4-4-30T-TRSMD CURRENT TRANSFORMER 74H-TR |
1,995 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 74 µH | - | 30:1 | - | 3mOhm Primary, 800mOhm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
SCS-4-4-20T-TRSMD CURRENT TRANSFORMER 33H-TR |
1,989 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 33 µH | - | 20:1 | - | 3mOhm Primary, 350mOhm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
SCS-4-4-150T-TRSMD CURRENT TRANSFORMER 1800H-TR |
1,991 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 1.8 mH | - | 150:1 | - | 3mOhm Primary, 21Ohm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
SCS-4-4-125T-TRSMD CURRENT TRANSFORMER 1280H-TR |
1,978 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 1.28 mH | - | 125:1 | - | 3mOhm Primary, 13Ohm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
SCS-4-4-100T-TRSMD CURRENT TRANSFORMER 820H-TR |
1,448 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 820 µH | - | 100:1 | - | 3mOhm Primary, 9.5Ohm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
SCS-4-4-50T-TRSMD CURRENT TRANSFORMER 205H-TR |
1,992 | - |
|
Datasheet |
SCS | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 205 µH | - | 50:1 | - | 3mOhm Primary, 2.5Ohm Secondary Max | - | Surface Mount | 0.185" L x 0.144" W (4.70mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
055663TRANSF CRNT SENSE 100:1 3.1MH |
119 | - |
|
Datasheet |
0556xx, Kaschke | Tray | Active | 200kHz ~ 3MHz | Invasive | - | 3.1 mH | 360VµS | - | - | 470Ohm | - | Through Hole | 1.063" L x 0.709" W (27.00mm x 18.00mm) | 0.689" (17.50mm) | PC Pin |
|
055662TRANSF CRNT SENSE 50:1 0.77MH |
118 | - |
|
Datasheet |
0556xx, Kaschke | Tray | Active | 200kHz ~ 3MHz | Invasive | - | 770 µH | 180VµS | - | - | 140Ohm | - | Through Hole | 1.063" L x 0.709" W (27.00mm x 18.00mm) | 0.689" (17.50mm) | PC Pin |
|
AS-111CURR SENSE XFMR 1:100CT 15A T/H |
500 | - |
|
Datasheet |
AS | Bulk | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | - | 25 mH | 350VµS | 1:100CT | - | 550mOhm Max | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |

