P4KE68A – 68 V 400 W Uni-Directional TVS Diode | DO-41 | Industrial & Telecom Surge Protector SEP

The P4KE68A is a 68 V, 400 W uni-directional TVS diode engineered to protect 60–68 V DC rails, industrial control systems, telecom power lines, and communication equipment from severe transient events. Its fast avalanche response and well-defined breakdown behavior ensure reliable clamping during lightning surges, inductive switching spikes, and load-dump conditions.

Key Specifications

• VRWM: 58.1 V

• VBR: 64.6–71.4 V

• VC: 92.0 V

• Peak Pulse Power: 400 W

• Package: DO-41

• Response Time: < 1 ns

Applications

• 60–68 V DC power rail surge suppression

• Telecom & networking line protection

• Industrial controllers and PLC I/O modules

• SMPS/DC converter front-end protection

• Instrumentation and field devices in harsh environments

Features

• Strong 400 W transient power capability

• Accurate clamping suited for ~66–68 V systems

• Ultra-fast avalanche conduction (< 1 ns)

• Rugged, long-life DO-41 epoxy-molded package

• Low leakage current and stable breakdown profile