P4KE170A 170 V 400 W Uni-Directional TVS Diode | DO-41 | Industrial & Telecom Surge Protector HORNBY

The P4KE170A is a 170 V, 400 W uni-directional TVS diode designed to protect 160170 V DC rails, industrial control systems, telecom power lines, and sensitive electronic modules from high-energy transients. Its fast avalanche response and tightly regulated breakdown range ensure dependable clamping during lightning surges, inductive switching spikes, and load-dump events.

Key Specifications

• VRWM: 146 V

• VBR: 162178 V

• VC: 240 V

• Peak Pulse Power: 400 W

• Package: DO-41

• Response Time: < 1 ns

Applications

• 160170 V DC bus transient suppression

• Industrial automation and PLC equipment protection

• Telecom and networking power system surge protection

• SMPS and DC/DC converter input protection

• Field instrumentation and control electronics

Features

• 400 W peak pulse energy handling

• Precise clamping for 170 V DC systems

• Ultra-fast avalanche response (< 1 ns)

• Rugged, glass-passivated DO-41 package

• Low leakage current with stable breakdown characteristics