Current Sense Transformers

Manufacturer 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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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
PA0368.070NL

PA0368.070NL

CURR SENSE XFMR 1:70 4A SMD

Pulse Electronics

15 -
RFQ
PA0368.070NL

Datasheet

- Tube Active 50kHz ~ 1MHz Invasive 4 A 3.3 mH - 1:70 - 4mOhm Primary, 1.2Ohm Secondary - Surface Mount 0.285" L x 0.352" W (7.25mm x 8.25mm) 0.124" (3.15mm) -
B82801B0305A125

B82801B0305A125

CURR SENSE XFMR 1:125 SMD

EPCOS - TDK Electronics

0 -
RFQ
B82801B0305A125

Datasheet

B82801B Tape & Reel (TR) Active 50kHz ~ 1MHz Invasive - 3 mH - 1:125 - 0.8mOhm Primary, 6.5Ohm Secondary - Surface Mount 0.280" L x 0.320" W (7.11mm x 8.13mm) 0.200" (5.08mm) Gull Wing
PE-63619NL

PE-63619NL

CURR SENSE XFMR 20A T/H

Pulse Electronics

0 -
RFQ
PE-63619NL

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
PE-67300NL

PE-67300NL

CURR SENSE XFMR 37A T/H

Pulse Electronics

0 -
RFQ
PE-67300NL

Datasheet

- Tray Active 10kHz ~ 200kHz Invasive 37 A 180 mH - - 300:1 510Ohm Primary, 11Ohm Secondary - Through Hole 0.565" L x 0.750" W (14.35mm x 19.05mm) 0.750" (19.05mm) PC Pin
AC1075

AC1075

CURR SENSE XFMR 75A T/H

Talema Group LLC

0 -
RFQ
AC1075

Datasheet

AC Tray Active 50/60Hz Non-Invasive (Solid Core) 75 A - - - 1000:1 24Ohm - Through Hole 1.500" L x 0.626" W (38.10mm x 15.90mm) 1.500" (38.10mm) PC Pin
CCT272440-80-10-02

CCT272440-80-10-02

CURR SENSE XFMR 80A CHAS MNT

TDK Corporation

0 -
RFQ
CCT272440-80-10-02

Datasheet

CCT Bulk Active 50/60Hz Non-Invasive (Split Core) 80 A - - - 3000:1 352Ohm - Chassis Mount 1.201" L x 1.083" W (30.50mm x 27.50mm) 1.634" (41.50mm) Wire Leads with Connector
CT5CF

CT5CF

CURR SENSE XFMR CHAS MNT

Hammond Manufacturing

0 -
RFQ
CT5CF

Datasheet

CT Box Active 50/60Hz Non-Invasive (Solid Core) - - - - - - - Chassis Mount 2.063" L x 1.100" W (52.40mm x 27.94mm) 1.250" (31.75mm) Wire Leads
2277815

2277815

CURR SENSE XFMR 60A DIN RAIL

Phoenix Contact

0 -
RFQ
2277815

Datasheet

- Bulk Active 50Hz ~ 60Hz Non-Invasive (Solid Core) 60 A - - - - - - DIN Rail 2.362" L x 1.181" W (60.00mm x 30.00mm) 3.150" (80.00mm) Terminal Block
2277048

2277048

CURR SENSE XFMR 250A DIN RAIL

Phoenix Contact

1 -
RFQ
2277048

Datasheet

PACT Bulk Active 50/60Hz Non-Invasive (Solid Core) 250 A - - - 200:5 - - DIN Rail 1.732" L x 1.181" W (44.00mm x 30.00mm) 2.598" (66.00mm) Terminal Block
CT-0100-D10

CT-0100-D10

CURR SENSE XFMR 100:5 DONUT

Littelfuse Inc.

1 -
RFQ
CT-0100-D10

Datasheet

CT Bulk Active - Non-Invasive (Solid Core) 100 A - - - 100:5 - - Free Hanging (In-Line) - - Wire Leads
CT-0100-F10

CT-0100-F10

CURR SENSE XFMR 100:5 FOOTED

Littelfuse Inc.

0 -
RFQ
CT-0100-F10

Datasheet

CT Bulk Active - Non-Invasive (Solid Core) 100 A - - - 100:5 - - - - - Terminal Block
CT400A

CT400A

CURR SENSE XFMR 5A CHAS MNT

Hammond Manufacturing

1 -
RFQ
CT400A

Datasheet

CT Box Active - Non-Invasive (Solid Core) 5 A - - - 400:5 - - Chassis Mount 4.750" L x 1.750" W (120.65mm x 44.45mm) 4.250" (107.95mm) Wire Leads
CT150A

CT150A

CURR SENSE XFMR 5A CHAS MNT

Hammond Manufacturing

1 -
RFQ
CT150A

Datasheet

CT Box Active - Non-Invasive (Solid Core) 5 A - - - 150:5 - - Chassis Mount 3.750" L x 1.750" W (95.25mm x 44.45mm) 3.250" (82.55mm) Wire Leads
CT200A

CT200A

CURR SENSE XFMR 5A CHAS MNT

Hammond Manufacturing

1 -
RFQ
CT200A

Datasheet

CT Box Active - Non-Invasive (Solid Core) 5 A - - - 200:5 - - Chassis Mount 4.750" L x 1.750" W (120.65mm x 44.45mm) 4.250" (107.95mm) Wire Leads
CT500A

CT500A

CURR SENSE XFMR 5A CHAS MNT

Hammond Manufacturing

1 -
RFQ
CT500A

Datasheet

CT Box Active - Non-Invasive (Solid Core) 5 A - - - 500:5 - - Chassis Mount 4.750" L x 1.750" W (120.65mm x 44.45mm) 4.250" (107.95mm) Wire Leads
CT-0400-F20

CT-0400-F20

CURR SENSE XFMR 400:5 FOOTED

Littelfuse Inc.

1 -
RFQ
CT-0400-F20

Datasheet

CT Bulk Active - Non-Invasive (Solid Core) 400 A - - - 400:5 - - - - - Terminal Block
CT-0500-D20

CT-0500-D20

CURR SENSE XFMR 500:5 DONUT

Littelfuse Inc.

1 -
RFQ
CT-0500-D20

Datasheet

CT Bulk Active - Non-Invasive (Solid Core) 500 A - - - 500:5 - - Free Hanging (In-Line) - - Wire Leads
CT1200A

CT1200A

CURR SENSE XFMR 5A CHAS MNT

Hammond Manufacturing

1 -
RFQ
CT1200A

Datasheet

CT Box Active - Non-Invasive (Solid Core) 5 A - - - 1200:5 - - Chassis Mount 8.000" L x 1.750" W (203.20mm x 44.45mm) 7.250" (184.15mm) Wire Leads
A82-20500

A82-20500

CURR SENSE XFMR 500A CHAS MNT

Carlo Gavazzi Inc.

1 -
RFQ
A82-20500

Datasheet

- Bag Active 40Hz ~ 1kHz Non-Invasive (Solid Core) 500 A - - - - - - Chassis Mount 3.740" L x 0.787" W (95.00mm x 20.00mm) 2.657" (67.50mm) Wire Leads
A82-20250

A82-20250

CURR SENSE XFMR 250A CHAS MNT

Carlo Gavazzi Inc.

0 -
RFQ
A82-20250

Datasheet

- Bag Active 40Hz ~ 1kHz Non-Invasive (Solid Core) 250 A - - - - - - Chassis Mount 3.740" L x 0.787" W (95.00mm x 20.00mm) 2.657" (67.50mm) Wire Leads
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