SA75CA – 75 V 500 W Bi-Directional TVS Diode | DO-15 | Industrial & High-Voltage Surge Protector SEP

The SA75CA is a 75 V, 500 W bi-directional TVS diode designed to protect high-voltage industrial systems, communication interfaces, instrumentation circuits, and power-line nodes from damaging transients. Its symmetrical avalanche breakdown ensures effective clamping in both polarities, providing stable suppression of surges, inductive load spikes, and ESD events.

Key Specifications

• VRWM: 75 V

• VBR: 82.5 – 91.3 V

• VC: 121 V

• Peak Pulse Power: 500 W

• Package: DO-15

• Response Time: < 1 ns

Applications

• Industrial automation and control equipment

• High-voltage communication and sensor lines

• Surge protection for 60–72 V power rails

• SMPS and converter high-voltage input protection

• Automotive, telecom, and infrastructure electronics

Features

• 500 W peak pulse power rating

• Bi-directional avalanche clamping

• Fast transient response (<1 ns)

• Rugged glass-passivated DO-15 package

• Stable voltage characteristics with low leakage