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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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|
PE-64519NLCURR SENSE XFMR 20A T/H |
501 | - |
|
Datasheet |
THT | Tray | Active | 20kHz ~ 200kHz | Invasive | 20 A | 80 mH | - | - | 200CT:1 | 200Ohm Primary, 4.5Ohm Secondary | - | Through Hole | 0.900" L x 0.700" W (22.86mm x 17.78mm) | 0.700" (17.78mm) | PC Pin |
|
B78419A2290A003CURR SENSE XFMR 1:125 SMD |
200 | - |
|
Datasheet |
B78419 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 11 mH | - | 1:125 | - | 0.5mOhm Primary, 4Ohm Secondary | - | Surface Mount | 0.504" L x 0.535" W (12.80mm x 13.60mm) | 0.567" (14.40mm) | Gull Wing |
|
ECSTA1V0504-1070-RCURR SENSE XFMR 70:1 7A SMD |
350 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 400 µH | - | 70:1 | - | 3Ohm Primary, 4.6Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.189" L x 0.144" W (4.80mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
ECSTA1V0504-1100-RCURR SENSE XFMR 100:1 7A SMD |
349 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 820 µH | - | 100:1 | - | 3Ohm Primary, 9.5Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.189" L x 0.144" W (4.80mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
ECSTA1V0504-1050-RCURR SENSE XFMR 50:1 7A SMD |
347 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 7 A | 205 µH | - | 50:1 | - | 3Ohm Primary, 2.5Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.189" L x 0.144" W (4.80mm x 3.65mm) | 0.140" (3.55mm) | J Lead |
|
PE-64487NLCURR SENSE XFMR 20A T/H |
261 | - |
|
Datasheet |
THT | Tube | Active | 20kHz ~ 200kHz | Invasive | 20 A | 20 mH | - | - | 100:1 | 100Ohm Primary, 1.4Ohm Secondary | - | Through Hole | 0.900" L x 0.700" W (22.86mm x 17.78mm) | 0.700" (17.78mm) | PC Pin |
|
B78417A2286A003CURR SENSE XFMR 1:70 SMD |
295 | - |
|
Datasheet |
B78417 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 3 mH | - | 1:70 | - | 1.9mOhm Primary, 2.9Ohm Secondary | - | Surface Mount | 0.417" L x 0.480" W (10.60mm x 12.20mm) | 0.433" (11.00mm) | Gull Wing |
|
CT-1025CURR SENSE XFMR 25A T/H |
186 | - |
|
Datasheet |
CT | 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 |
|
VST10/9EE-205S1C2CURRENT SENSE TRANSFORMERS, WOUN |
472 | - |
|
Datasheet |
VST | Tape & Reel (TR) | Active | - | Invasive | 20 A | 12.4 mH | - | 1:200 | - | - | - | Surface Mount | 0.476" L x 0.425" W (12.10mm x 10.80mm) | 0.394" (10.00mm) | Gull Wing |
|
PM2165.050NLCURR SENSE XFMR 1:50 20A SMD |
431 | - |
|
Datasheet |
PM2165.XXXNL | Tray | Active | 20kHz ~ 1MHz | Invasive | 20 A | 500 µH | - | 1:50 | - | 0.75mOhm Primary, 1.5Ohm Secondary Max | AEC-Q200 | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
|
54050CCURR SENSE XFMR 1:1:50 15A SMD |
294 | - |
|
Datasheet |
5400 | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 3.8 mH | - | 1:1:50 | - | 7mOhm Primary, 500mOhm Secondary | - | Surface Mount | 0.354" L x 0.425" W (9.00mm x 10.80mm) | 0.323" (8.20mm) | Gull Wing |
|
PA1005.060QNLCURR SENSE XFMR 1:60 20A SMD |
1,535 | - |
|
Datasheet |
- | Tray | Active | 50kHz ~ 1MHz | Invasive | 20 A | 720 µH | - | 1:60 | - | 0.75mOhm Primary, 2.25Ohm Secondary | AEC-Q200 | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
54100CCURR SENSE XFMR 1:1:100 15A SMD |
147 | - |
|
Datasheet |
5400 | Tape & Reel (TR) | Active | 50kHz ~ 500kHz | Invasive | - | 14.8 mH | - | 1:1:100 | - | 7mOhm Primary, 3.2Ohm Secondary | - | Surface Mount | 0.354" L x 0.425" W (9.00mm x 10.80mm) | 0.323" (8.20mm) | Gull Wing |
|
PA1005.050QNLCURR SENSE XFMR 1:50 20A SMD |
740 | - |
|
Datasheet |
- | Tray | Active | 50kHz ~ 1MHz | Invasive | 20 A | 500 µH | - | 1:50 | - | 0.75mOhm Primary, 1.5Ohm Secondary | AEC-Q200 | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
RL-3410CURRENT SENSE XFMR 50:1 5-25KHZ |
200 | - |
|
Datasheet |
- | Bulk | Active | 5kHz ~ 25kHz | Non-Invasive (Solid Core) | - | 5 mH | - | 1:50 | 50:1 | 700mOhm Secondary | - | Through Hole | 0.670" L x 0.390" W (17.01mm x 9.90mm) | 0.800" (20.32mm) | PC Pin |
|
|
B82801B0984A070CURR SENSE XFMR 1:70 SMD |
700 | - |
|
Datasheet |
B82801B | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 980 µH | - | 1:70 | - | 0.8mOhm Primary, 4.75Ohm Secondary | - | Surface Mount | 0.280" L x 0.320" W (7.11mm x 8.13mm) | 0.200" (5.08mm) | Gull Wing |
|
RL-3420CURRENT SENSE XFMR 100:1 1.5-50K |
200 | - |
|
Datasheet |
- | Bulk | Active | 5kHz ~ 50kHz | Non-Invasive (Solid Core) | - | 20 mH | - | 1:100 | 100:1 | 1.4Ohm | - | Through Hole | 0.670" L x 0.390" W (17.01mm x 9.90mm) | 0.800" (20.32mm) | PC Pin |
|
P8203NLTCURR SENSE XFMR 1:30 SMD |
1,918 | - |
|
Datasheet |
P820X | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | - | 180 µH | - | 1:30 | - | 6mOhm Primary, 870mOhm Secondary | - | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
|
RL-3430CURRENT SENSE XFMR 200:1 1-100KH |
193 | - |
|
Datasheet |
- | Bulk | Active | 1kHz ~ 100kHz | Non-Invasive (Solid Core) | - | 80 mH | - | 1:200 | 200:1 | 4.5Ohm Secondary | - | Through Hole | 0.670" L x 0.390" W (17.01mm x 9.90mm) | 0.800" (20.32mm) | PC Pin |
|
RL-7747-1000CURRENT SENSE XFMR 1000:1 TH |
1,000 | - |
|
Datasheet |
- | Bulk | Active | 47Hz ~ 400Hz | Invasive | 40 A | - | - | 1000:1 | 1:1000 | 0.3mOhm Primary, 86mOhm Secondary | - | Through Hole | 0.860" L x 0.850" W (21.84mm x 21.59mm) | 0.710" (18.03mm) | PC Pin |

