P4KE7.5CA – 7.5V 400W Bidirectional TVS Diode | DO-41 | AC & Bidirectional Signal Line Surge Protector SEP

The P4KE7.5CA is a 400W bidirectional transient voltage suppressor designed for protecting low-voltage AC lines, analog signals, communication links, and polarity-independent circuits. With a symmetric breakdown window of 7.13–7.88V and strong 400W surge capability, it provides fast and reliable protection against ESD, EFT, and high-energy transient spikes. Its bidirectional clamping action ensures equal protection in both polarities, making it ideal for AC-coupled or alternating signal environments.

Key Specifications

• VWM (Standoff Voltage): 7.5V

• VBR (Breakdown Voltage): 7.13–7.88V

• VC (Clamping Voltage): 12.9V

• IPP (Peak Pulse Current): 31A

• PPP (Peak Pulse Power): 400W

• IR (Leakage Current): 1000µA

• Polarity: Bidirectional

• Package: DO-41

Features

• Bidirectional protection for AC & bipolar signals

• High-power 400W transient absorption

• Very fast response time to surge events

• Low leakage for stable signal integrity

• Symmetrical clamping in both directions

• Robust DO-41 through-hole package

Applications

• AC signal lines & communication ports

• Data lines & low-frequency interfaces

• Industrial control loops

• Low-voltage AC power supplies

• Sensor lines & bidirectional I/O