P4KE220A 220 V 400 W Uni-Directional TVS Diode | DO-41 | Industrial & Telecom Surge Protector HORNBY

The P4KE220A is a 220 V, 400 W uni-directional TVS diode designed to protect 210220 V DC rails, industrial controllers, telecom power lines, and sensitive electronics from high-energy transient events. Its fast avalanche response and controlled breakdown range ensure dependable clamping during lightning surges, inductive switching, and load-dump conditions.

Key Specifications

• VRWM: 190 V

• VBR: 209231 V

• VC: 314 V

• Peak Pulse Power: 400 W

• Package: DO-41

• Response Time: < 1 ns

Applications

• 210220 V DC bus surge suppression

• Industrial automation and PLC module protection

• Telecom and networking equipment protection

• SMPS/DC converter input transient protection

• Field instrumentation and control systems

Features

• 400 W peak pulse energy handling

• Accurate clamping for 220 V DC systems

• Ultra-fast avalanche response (< 1 ns)

• Rugged, glass-passivated DO-41 package

• Low leakage current and stable breakdown characteristics