P4KE120A 120 V 400 W Uni-Directional TVS Diode | DO-41 | Industrial & Telecom Surge Protector HORNBY

The P4KE120A is a 120 V, 400 W uni-directional TVS diode engineered to protect 110120 V DC rails, industrial automation systems, telecom power lines, and sensitive electronic modules from high-energy surges and transients. Its fast avalanche response and tightly controlled breakdown characteristics ensure reliable clamping during lightning strikes, load-dump events, and inductive switching spikes.

Key Specifications

• VRWM: 102 V

• VBR: 114126 V

• VC: 165 V

• Peak Pulse Power: 400 W

• Package: DO-41

• Response Time: < 1 ns

Applications

• 110120 V DC bus transient suppression

• Telecom and networking surge protection

• Industrial PLC and automation module safeguarding

• SMPS and DC/DC converter input surge handling

• Field instrumentation and control line protection

Features

• High-energy 400 W peak pulse handling

• Accurate clamping for 120 V DC systems

• Ultra-fast avalanche response (< 1 ns)

• Rugged, long-life DO-41 axial package

• Low leakage current and stable breakdown behavior