The SMA6J220A from RUILON is a high-reliability 400W Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic circuits from voltage transients, electrostatic discharge (ESD), and surge events. Packaged in a compact SMA (DO-214AC) surface-mount form factor, it provides strong surge-handling capability while maintaining excellent thermal stability and efficient PCB space utilization, making it suitable for modern high-density electronic designs.
With a 220V reverse standoff voltage, the SMA6J220A is optimized for higher-voltage power rails and signal line protection, ensuring stable operation under normal conditions while rapidly clamping harmful transient voltage spikes. Its ultra-fast response time enables immediate suppression of surge energy, effectively safeguarding critical components such as ICs, microcontrollers, and communication interfaces.
The device features a peak pulse power dissipation of 400W (10/1000 µs waveform), delivering robust energy absorption capability and reliable performance under repeated surge conditions. Compared to lower-voltage TVS diodes, the SMA6J220A offers a higher breakdown threshold, making it suitable for applications requiring improved voltage margin and enhanced system-level protection.
Built using advanced silicon avalanche technology, it ensures low leakage current, precise clamping behavior, and long-term operational stability. This makes it a dependable solution for protecting electronic systems operating in harsh electrical environments with frequent transient disturbances.
Key Features
- 400W peak pulse power dissipation (10/1000 µs waveform)
- 220V reverse standoff voltage for higher-voltage protection
- Ultra-fast response time for instant ESD and surge suppression
- Low leakage current for efficient and stable operation
- High surge capability for repetitive transient events
- Strong clamping performance for sensitive electronics protection
- Compact SMA (DO-214AC) surface-mount package
- Silicon avalanche technology for high reliability and durability
Applications
- Automotive high-voltage electronic systems
- Industrial automation and power control systems
- Power supply input/output surge protection circuits
- Communication interfaces (RS-485, RS-232, Ethernet ports)
- Consumer electronics and smart devices
- LED lighting drivers and industrial lighting systems
- Portable and battery-powered electronic systems
- I/O ports and signal line ESD protection systems
