The SMBJ400A TVS Diode from RUILON is a high-performance 600W transient voltage suppressor engineered to protect sensitive electronic circuits from voltage spikes, lightning surges, and electrostatic discharge (ESD). Utilizing advanced avalanche breakdown technology, this diode provides ultra-fast response time and precise clamping performance, ensuring reliable suppression of transient overvoltage conditions.
With a working peak reverse voltage of 400V, the SMBJ400A is ideal for high-voltage applications requiring robust and stable surge protection. It features a peak pulse power dissipation of 600W (10/1000µs waveform), enabling it to absorb and dissipate substantial transient energy while maintaining circuit integrity. The device also offers low leakage current and optimized clamping characteristics, enhancing overall system efficiency and long-term reliability.
Compared to lower voltage TVS diodes, the 400V configuration provides significant voltage headroom, minimizing the risk of unintended conduction in circuits with voltage fluctuations while maintaining strong surge suppression capability. Encased in a compact SMB (DO-214AA) surface-mount package, it supports space-efficient PCB layouts and easy integration into modern electronic designs.
The RUILON SMBJ400A is widely used in power supplies, industrial control systems, telecom equipment, automotive electronics, and consumer devices, delivering dependable protection, durability, and consistent performance in demanding environments.
Key Features:
- 600W peak pulse power dissipation (10/1000µs)
- 400V working peak reverse voltage
- Ultra-fast response time
- Low leakage current and high reliability
- Excellent clamping capability
- Compact SMB (DO-214AA) SMD package
Applications:
- Power supply protection
- Industrial control systems
- Telecom and networking equipment
- Automotive electronics
- Consumer electronic devices
