P4KE82A – 82 V 400 W Uni-Directional TVS Diode | DO-41 | Industrial & Telecom High-Voltage Surge Protector SEP

The P4KE82A is an 82 V, 400 W uni-directional TVS diode designed for surge protection in 75–82 V DC rails, telecom power systems, industrial automation equipment, and communication lines. Its ultra-fast avalanche behavior and tightly regulated breakdown window ensure dependable suppression of lightning-induced surges, inductive spikes, and high-energy transients.

Key Specifications

• VRWM: 70.1 V

• VBR: 77.9–86.1 V

• VC: 113 V

• Peak Pulse Power: 400 W

• Package: DO-41

• Response Time: < 1 ns

Applications

• 75–82 V DC bus transient suppression

• Telecom and networking power protection

• Industrial automation and PLC I/O lines

• SMPS/DC converter input surge absorption

• Field instruments and distributed control systems

Features

• High-energy 400 W peak pulse capability

• Precise clamping for ~80 V DC systems

• Ultra-fast avalanche conduction (< 1 ns)

• Rugged, glass-passivated DO-41 package

• Low leakage and stable voltage performance