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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
CSE5-100401CURR SENSE XFMR 1:40 10A SMD |
344 | - |
|
Datasheet |
- | Tape & Reel (TR) | Active | 250kHz Min | Invasive | 10 A | 320 µH | - | 1:40 | - | 1.14Ohm Secondary | - | Surface Mount | 0.272" L x 0.303" W (6.90mm x 7.70mm) | 0.210" (5.33mm) | Gull Wing |
|
CSE5-100601CURR SENSE XFMR 1:60 10A SMD |
337 | - |
|
Datasheet |
- | Tape & Reel (TR) | Active | 250kHz Min | Invasive | 10 A | 720 µH | - | 1:60 | - | 1.75Ohm Secondary | - | Surface Mount | 0.272" L x 0.303" W (6.90mm x 7.70mm) | 0.210" (5.33mm) | Gull Wing |
|
CSE5-100501CURR SENSE XFMR 1:50 10A SMD |
209 | - |
|
Datasheet |
- | Tape & Reel (TR) | Active | 250kHz Min | Invasive | 10 A | 500 µH | - | 1:50 | - | 1.5Ohm Secondary | - | Surface Mount | 0.272" L x 0.303" W (6.90mm x 7.70mm) | 0.210" (5.33mm) | Gull Wing |
|
PH9494.100NLTCURR SENSE XFMR 100:1 30A SMD |
1,624 | - |
|
Datasheet |
PH9494.XXXNLT | Tape & Reel (TR) | Active | 20kHz | Invasive | 30 A | 2.5 mH | - | 100:1 | - | 0.35mOhm Primary, 3Ohm Secondary | - | Surface Mount | 0.504" L x 0.382" W (12.80mm x 9.70mm) | 0.283" (7.20mm) | Gull Wing |
|
PH9494.150NLTCURR SENSE XFMR 150:1 30A SMD |
333 | - |
|
Datasheet |
PH9494.XXXNLT | Tape & Reel (TR) | Active | 20kHz | Invasive | 30 A | 5.63 mH | - | 150:1 | - | 0.35mOhm Primary, 5.7Ohm Secondary | - | Surface Mount | 0.504" L x 0.382" W (12.80mm x 9.70mm) | 0.283" (7.20mm) | Gull Wing |
|
PH9494.050NLTCURR SENSE XFMR 50:1 30A SMD |
523 | - |
|
Datasheet |
PH9494.XXXNLT | Tape & Reel (TR) | Active | 20kHz | Invasive | 30 A | 630 µH | - | 50:1 | - | 0.35mOhm Primary, 600mOhm Secondary | - | Surface Mount | 0.504" L x 0.382" W (12.80mm x 9.70mm) | 0.283" (7.20mm) | Gull Wing |
|
ECSTA1V0805-1125-RCURR SENSE XFMR 125:1 10A SM |
0 | - |
|
Datasheet |
ECSTA | Tape & Reel (TR) | Active | 50kHz ~ 1MHz | Invasive | 10 A | 3 mH | - | 125:1 | - | 700mOhm Primary, 11.5Ohm Secondary Max | AEC-Q200 | Surface Mount | 0.330" L x 0.315" W (8.38mm x 8.00mm) | 0.217" (5.50mm) | Gull Wing |
|
CSE187L-BCURR SENSE XFMR 1:500 TH |
2,311 | - |
|
- |
CSE187 | - | Active | - | - | - | - | - | 1:500 | - | 250mOhm Max | - | Through Hole | 0.875" L x 0.875" W (22.23mm x 22.23mm) | 0.720" (18.29mm) | PC Pin |
|
PCS020-EE05730SCURRENT SENSE TRANSF 20A 730UH |
981 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 20 A | 0.73 mH | 32.4VµS | 1:60 | 60:1 | 7mOhm Primary, 1.98Ohm Secondary Max | - | Surface Mount | 0.245" L x 0.235" W (6.22mm x 5.97mm) | 0.209" (5.31mm) | Gull Wing |
|
PCS020-EE0502KSCURRENT SENSE TRANSF 20A 2000UH |
813 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 20 A | 2 mH | 54VµS | 1:100 | 100:1 | 7mOhm Primary, 5.5Ohm Secondary Max | - | Surface Mount | 0.245" L x 0.235" W (6.22mm x 5.97mm) | 0.209" (5.31mm) | Gull Wing |
|
PCS020-EE05081SCURRENT SENSE TRANSF 20A 81UH |
983 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 20 A | 81 mH | 10.8VµS | 1:20 | 20:1 | 7mOhm Primary, 400mOhm Secondary Max | - | Surface Mount | 0.245" L x 0.235" W (6.22mm x 5.97mm) | 0.209" (5.31mm) | Gull Wing |
|
PCS040-EF1303KSCURRENT SENSE TRANSF 40A 3060UH |
290 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 3.06 mH | 152.4VµS | 1:60 | 60:1 | 1mOhm Primary, 850mOhm Secondary Max | - | Surface Mount | - | 0.413" (10.50mm) | Gull Wing |
|
PCS040-EF1301KSCURRENT SENSE TRANSF 40A 1360UH |
290 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 1.36 mH | 101.6VµS | 1:40 | 40:1 | 1mOhm Primary, 560mOhm Secondary Max | - | Surface Mount | - | 0.413" (10.50mm) | Gull Wing |
|
PCS040-EF1334KSCURRENT SENSE TRANSF 40A 34000UH |
256 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 34 mH | 508VµS | 1:200 | 200:1 | 1mOhm Primary, 4.06Ohm Secondary Max | - | Surface Mount | - | 0.413" (10.50mm) | Gull Wing |
|
PCS020-EE0503KSCURRENT SENSE TRANSF 20A 3000UH |
980 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 20 A | 3 H | 67.5VµS | 1:125 | 125:1 | 7mOhm Primary, 7Ohm Secondary Max | - | Surface Mount | 0.245" L x 0.235" W (6.22mm x 5.97mm) | 0.209" (5.31mm) | Gull Wing |
|
PCS040-EF1319KSCURRENT SENSE TRANSF 40A 19200UH |
299 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 19.2 mH | 381VµS | 1:150 | 150:1 | 1mOhm Primary, 2.25Ohm Secondary Max | - | Surface Mount | - | 0.413" (10.50mm) | Gull Wing |
|
PCS040-EF1305KSCURRENT SENSE TRANSF 40A 5440UH |
272 | - |
|
Datasheet |
PCS | Tape & Reel (TR) | Active | 1MHz | Invasive | 40 A | 5.44 mH | 203.2VµS | 1:80 | 80:1 | 1mOhm Primary, 1.15Ohm Secondary Max | - | Surface Mount | - | 0.413" (10.50mm) | Gull Wing |
|
T60404E4622X503CURR SENSE XFMR 2000:1 20A TH |
3,353 | - |
|
Datasheet |
- | Box | Obsolete | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 20 A | 238 H | - | 1:2000 | 2000:1 | 114Ohm | - | Through Hole | 0.965" L x 0.484" W (24.50mm x 12.30mm) | 0.994" (25.25mm) | PC Pin |
|
CR8349-1500-NCURR SENSE XFMR T/H |
167 | - |
|
- |
CR8300 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Through Hole | 1.024" L x 0.670" W (26.00mm x 17.00mm) | 1.102" (28.00mm) | PC Pin |
|
ACTL-0750-150 OPT C0.6CURR SENS XFMR 100:1 150A INLINE |
92 | - |
|
- |
Accu-CT® | Bag | Active | 50/60Hz | Non-Invasive (Split Core) | 150 A | - | - | 100:1 | - | - | - | Free Hanging (In-Line) | 2.378" L x 0.902" W (60.40mm x 22.90mm) | 2.402" (61.00mm) | Wire Leads |

