SA75A 75.0 V 500 W Uni-Directional TVS Diode | DO-15 | Industrial & Power-Line Surge Protector HORNBY

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The SA75A is a 75 V, 500 W uni-directional TVS diode designed for surge protection in industrial control systems, relay drivers, power supplies, and communication equipment. Its fast avalanche response and tightly controlled breakdown voltage ensure dependable clamping during switching spikes, inductive loads, and power-line disturbances.

Key Specifications

  • VRWM: 60.0 V

  • VBR: 71.378.8 V

  • VC: 121 V

  • Peak Pulse Power: 500 W

  • Package: DO-15

  • Response Time: < 1 ns

Applications

  • Industrial automation and PLC surge suppression

  • Motor drive and relay coil transient protection

  • DC bus and SMPS input surge protection

  • Communication and signaling line safeguarding

Features

  • 500 W peak pulse capability

  • Uni-directional, fast avalanche clamping

  • Ultra-fast response (<1 ns)

  • Rugged, glass-passivated DO-15 package

  • Low leakage and stable breakdown characteristics