SA43CA 43 V 500 W Bi-Directional TVS Diode | DO-15 | Industrial & Communication Line Surge Protector HORNBY

The SA43CA is a 43 V, 500 W bi-directional TVS diode designed to protect industrial, communication, sensor, and control circuits from high-energy transients. Its symmetrical avalanche breakdown ensures reliable clamping in both polarities during spikes, ESD events, and inductive switching disturbances.

Key Specifications
VRWM: 36.80 V
VBR: 40.9045.20 V
VC: 58.1 V
Peak Pulse Power: 500 W
Package: DO-15
Response Time: < 1 ns

Applications
Industrial control and PLC systems
Communication and sensor line protection
SMPS and DC-DC converter input protection
Low-voltage power rail surge suppression
Microcontroller and logic interface protection

Features
500 W peak pulse capability
Bi-directional avalanche clamping
Ultra-fast response (<1 ns)
Rugged DO-15 glass-passivated package
Stable VBR with low leakage current