SA70A 70.0 V 500 W Uni-Directional TVS Diode | DO-15 | Industrial & Power-Line Surge Protector HORNBY

The SA70A is a 70 V, 500 W uni-directional TVS diode designed to protect medium-voltage DC rails, industrial control units, relays, and communication interfaces from high-energy transient events. Its fast avalanche response ensures stable clamping for inductive load switching and power-line surges.

Key Specifications

• VRWM: 60.0 V

• VBR: 66.573.5 V

• VC: 113 V

• Peak Pulse Power: 500 W

• Package: DO-15

• Response Time: < 1 ns

Applications

• Industrial PLC and motor drive protection

• Power-line surge suppression

• Relay/solenoid transient damping

• DC bus and SMPS input protection

Features

• 500 W peak pulse capability

• Uni-directional avalanche clamping

• Ultra-fast response (<1 ns)

• Glass-passivated junction for stability

• Low leakage and tight breakdown tolerance