The SMCJ400A TVS Diode from RUILON is a high-performance 1500W transient voltage suppressor designed to protect sensitive electronic circuits from voltage spikes, lightning surges, and electrostatic discharge (ESD). Built with advanced avalanche breakdown technology, it delivers ultra-fast response time and precise clamping performance, ensuring reliable suppression of transient overvoltage events in industrial and electronic systems.
With a working peak reverse voltage of 400V, the SMCJ400A is ideal for protecting DC power lines, communication interfaces, industrial control systems, power supplies, and embedded electronic circuits. Its 1500W peak pulse power dissipation (10/1000µs waveform) provides strong surge absorption capability, making it suitable for high-voltage and harsh electrical environments.
The device features ultra-low leakage current, stable clamping characteristics, and excellent thermal performance, ensuring consistent operation even under repeated surge stress. Compared to lower voltage variants, the 400V rating provides a robust protection solution for high-voltage industrial systems while maintaining strong immunity against ESD and transient voltage spikes.
Encased in a compact SMC (DO-214AB) surface-mount package, the SMCJ400A supports high power handling in a space-efficient footprint, making it suitable for modern high-density PCB designs. It is widely used in industrial automation, power electronics, communication equipment, and other high-voltage electronic applications requiring reliable surge protection.
Key Features:
- 1500W peak pulse power dissipation (10/1000µs)
- 400V working peak reverse voltage
- Ultra-fast response time
- Low leakage current and high reliability
- Strong clamping capability
- Compact SMC (DO-214AB) SMD package
Applications:
- Industrial power systems
- High-voltage DC protection
- Communication equipment
- Power supplies
- Embedded electronic systems
