SA70CA – 70 V 500 W Bi-Directional TVS Diode | DO-15 | Industrial & High-Voltage Line Surge Protector SEP

SEP

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The SA70CA is a 70 V, 500 W bi-directional TVS diode engineered for robust protection of industrial control interfaces, power distribution lines, communication networks, and high-voltage signal circuits. Its symmetrical avalanche design ensures reliable clamping in both polarities, delivering stable suppression against transient surges, inductive switching spikes, and electrostatic discharge.

Key Specifications

  • VRWM: 70 V

  • VBR: 77.8 – 86.1 V

  • VC: 113 V

  • Peak Pulse Power: 500 W

  • Package: DO-15

  • Response Time: < 1 ns

Applications

  • High-voltage industrial control and monitoring systems

  • Communication and data transmission line protection

  • Power-line surge suppression for 48–60 V rails

  • Automotive and transportation electrical modules

  • SMPS and DC-DC converter protection

Features

  • 500 W peak pulse capability

  • Bi-directional clamping for AC/DC protection

  • Ultra-fast response (<1 ns)

  • Rugged DO-15 glass-passivated construction

  • Stable breakdown voltage with low leakage