SA150A 150.0 V 500 W Uni-Directional TVS Diode | DO-15 | Industrial & Power-Line Surge Protector HORNBY

The SA150A is a 150 V, 500 W uni-directional TVS diode designed to protect industrial DC rails, automation controllers, relay and motor drivers, and communication circuits from high-energy transient surges. Its fast avalanche response and controlled breakdown voltage ensure reliable clamping during voltage spikes, inductive switching, and load-dump events.

Key Specifications

• VRWM: 128.0 V

• VBR: 143.0158.0 V

• VC: 243 V

• Peak Pulse Power: 500 W

• Package: DO-15

• Response Time: < 1 ns

Applications

• Industrial DC bus and PLC surge protection

• Motor, solenoid, and relay driver protection

• SMPS and DC/DC converter input protection

• Sensor and communication line safeguarding

• Automation and control system protection

Features

• 500 W peak pulse energy absorption capability

• Uni-directional avalanche clamping for medium-voltage DC rails

• Ultra-fast transient response (<1 ns)

• Rugged glass-passivated DO-15 package

• Low leakage current and stable breakdown characteristics