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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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TCS-01CURR SENSE XFMR 1:20 SMD |
0 | - |
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Datasheet |
TCS | Tape & Reel (TR) | Obsolete | 250kHz Min | Invasive | - | 80 µH | - | 1:20 | - | 6mOhm Primary, 550mOhm Secondary | - | Surface Mount | 0.276" L x 0.331" W (7.00mm x 8.40mm) | 0.205" (5.20mm) | Gull Wing |
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TCS-02CURR SENSE XFMR 1:30 SMD |
0 | - |
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Datasheet |
TCS | Tape & Reel (TR) | Obsolete | 250kHz Min | Invasive | - | 180 µH | - | 1:30 | - | 6mOhm Primary, 870mOhm Secondary | - | Surface Mount | 0.276" L x 0.331" W (7.00mm x 8.40mm) | 0.205" (5.20mm) | Gull Wing |
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TCS-03CURR SENSE XFMR 1:40 SMD |
0 | - |
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Datasheet |
TCS | Tape & Reel (TR) | Obsolete | 250kHz Min | Invasive | - | 320 µH | - | 1:40 | - | 6mOhm Primary, 1.14Ohm Secondary | - | Surface Mount | 0.276" L x 0.331" W (7.00mm x 8.40mm) | 0.205" (5.20mm) | Gull Wing |
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TCS-05CURR SENSE XFMR 1:60 SMD |
0 | - |
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Datasheet |
TCS | Tape & Reel (TR) | Obsolete | 250kHz Min | Invasive | - | 720 µH | - | 1:60 | - | 6mOhm Primary, 1.75Ohm Secondary | - | Surface Mount | 0.276" L x 0.331" W (7.00mm x 8.40mm) | 0.205" (5.20mm) | Gull Wing |
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TCS-07CURR SENSE XFMR 1:100 SMD |
0 | - |
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Datasheet |
TCS | Tape & Reel (TR) | Obsolete | 250kHz Min | Invasive | - | 2 mH | - | 1:100 | - | 6mOhm Primary, 5.9Ohm Secondary | - | Surface Mount | 0.276" L x 0.331" W (7.00mm x 8.40mm) | 0.205" (5.20mm) | Gull Wing |
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TCS-08CURR SENSE XFMR 1:125 SMD |
0 | - |
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Datasheet |
TCS | Tape & Reel (TR) | Obsolete | 250kHz Min | Invasive | - | 3 mH | - | 1:125 | - | 6mOhm Primary, 7.7Ohm Secondary | - | Surface Mount | 0.276" L x 0.331" W (7.00mm x 8.40mm) | 0.205" (5.20mm) | Gull Wing |
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PA1005.060NLCURR SENSE XFMR 1:60 20A SMD |
0 | - |
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Datasheet |
PA1005.XXXNL | Tray | Active | 20kHz ~ 1MHz | Invasive | 20 A | 720 µH | - | 1:60 | - | 0.75mOhm Primary, 2.5Ohm Secondary Max | - | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
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PA1005.040NLCURR SENSE XFMR 1:40 20A SMD |
0 | - |
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Datasheet |
PA1005.XXXNL | Tray | Active | 20kHz ~ 1MHz | Invasive | 20 A | 320 µH | - | 1:40 | - | 0.75mOhm Primary, 1.14Ohm Secondary Max | - | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
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PA1005.030NLCURR SENSE XFMR 1:30 20A SMD |
0 | - |
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Datasheet |
PA1005.XXXNL | Tray | Active | 20kHz ~ 1MHz | Invasive | 20 A | 180 µH | - | 1:30 | - | 0.75mOhm Primary, 870mOhm Secondary Max | - | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
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PA1005.020NLCURR SENSE XFMR 1:20 20A SMD |
0 | - |
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Datasheet |
PA1005.XXXNL | Tray | Active | 20kHz ~ 1MHz | Invasive | 20 A | 80 µH | - | 1:20 | - | 0.75mOhm Primary, 550mOhm Secondary Max | - | Surface Mount | - | 0.217" (5.50mm) | Gull Wing |
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PA1005.040QNLCURR SENSE XFMR 1:40 20A SMD |
0 | - |
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Datasheet |
- | Tray | Active | 50kHz ~ 1MHz | Invasive | 20 A | 320 µH | - | 1:40 | - | 0.75mOhm Primary, 1.14Ohm Secondary | AEC-Q200 | Surface Mount | 0.284" L x 0.330" W (7.21mm x 8.38mm) | 0.217" (5.50mm) | Gull Wing |
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CS-1100-RCURR SENSE XFMR 20A T/H |
0 | - |
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Datasheet |
CS | Bulk | Obsolete | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 20 A | 22.4 mH | - | - | 100:1 | 1.3Ohm | - | Through Hole | 0.675" L x 0.375" W (17.15mm x 9.53mm) | 0.800" (20.32mm) | PC Pin |
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CS-1200-RCURR SENSE XFMR 40A T/H |
0 | - |
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Datasheet |
CS | Bulk | Obsolete | 20kHz ~ 100kHz | Non-Invasive (Solid Core) | 40 A | 89.7 mH | - | - | 200:1 | 3.3Ohm | - | Through Hole | 0.675" L x 0.375" W (17.15mm x 9.53mm) | 0.800" (20.32mm) | PC Pin |
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CS-1050-RCURR SENSE XFMR 10A T/H |
0 | - |
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Datasheet |
CS | Bulk | Obsolete | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 10 A | 5.6 mH | - | - | 50:1 | 600mOhm | - | Through Hole | 0.675" L x 0.375" W (17.15mm x 9.53mm) | 0.800" (20.32mm) | PC Pin |
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749252070CURR SENSE XFMR 1:70 7A SMD |
0 | - |
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Datasheet |
WE-CST | Tape & Reel (TR) | Active | 1MHz | Invasive | 7 A | 400 µH | 31.5VµS | 1:70 | - | 3mOhm Primary, 4.6Ohm Secondary | - | Surface Mount | 0.185" L x 0.183" W (4.70mm x 4.65mm) | 0.140" (3.55mm) | Gull Wing |
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AS-101CURR SENSE XFMR 1:100 15A T/H |
0 | - |
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Datasheet |
AS | Tray | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 15 A | 25 mH | 350VµS | 1:100 | - | 1.1Ohm Secondary | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
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55050C-RCURR SENSE XFMR 1:1:50 15A SMD |
0 | - |
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Datasheet |
5500 | Tape & Reel (TR) | Obsolete | 50kHz ~ 500kHz | Invasive | 15 A | 3.8 mH | - | 1:1:50 | - | 2.3mOhm Primary, 350mOhm Secondary | - | Surface Mount | 0.575" L x 0.496" W (14.60mm x 12.60mm) | 0.280" (7.10mm) | - |
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AS-102CURR SENSE XFMR 1:200 15A T/H |
0 | - |
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Datasheet |
AS | Tray | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 15 A | - | 700VµS | 1:200 | - | 4.5Ohm Secondary | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |
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B82801A0185A150CURR SENSE XFMR 1:150 7A SMD |
0 | - |
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Datasheet |
B82801A | Tape & Reel (TR) | Obsolete | 50kHz ~ 1MHz | Invasive | 7 A | 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 |
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AS-103CURR SENSE XFMR 1:300 15A T/H |
0 | - |
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Datasheet |
AS | Tray | Active | 20kHz ~ 200kHz | Non-Invasive (Solid Core) | 15 A | - | 900VµS | 1:300 | - | 10Ohm Secondary | - | Through Hole | 0.677" L x 0.375" W (17.20mm x 9.53mm) | 0.803" (20.40mm) | PC Pin |

