P4KE510A 510 V 400 W Uni-Directional TVS Diode | DO-41 | Industrial & Telecom Surge Protector HORNBY

The P4KE510A is a 510 V, 400 W uni-directional TVS diode designed to protect 500510 V DC rails, industrial automation equipment, telecom power lines, and sensitive electronics from high-energy transient events. Its fast avalanche conduction and tightly regulated breakdown range ensure dependable clamping during lightning surges, inductive switching, and load-dump spikes.

Key Specifications

• VRWM: 443 V

• VBR: 499531 V

• VC: 740 V

• Peak Pulse Power: 400 W

• Package: DO-41

• Response Time: < 1 ns

Applications

• 500510 V DC bus surge suppression

• Industrial automation and PLC protection

• Telecom and networking equipment transient protection

• SMPS/DC converter input surge handling

• Field instrumentation and control electronics

Features

• 400 W peak pulse energy absorption

• Accurate clamping for 510 V DC systems

• Ultra-fast avalanche response (< 1 ns)

• Rugged, glass-passivated DO-41 axial package

• Low leakage current and stable breakdown characteristics