The SMA6J54A from RUILON is a high-reliability 400W Transient Voltage Suppressor (TVS) diode engineered to protect sensitive electronic circuits from voltage transients, electrostatic discharge (ESD), and surge-related stress. Packaged in a compact SMA (DO-214AC) surface-mount form factor, it delivers strong surge-handling performance while maintaining excellent thermal stability and efficient PCB space utilization, making it ideal for modern high-density electronic designs.
With a 54V reverse standoff voltage, the SMA6J54A is optimized for medium-voltage power rails and signal line protection, ensuring stable operation under normal conditions while rapidly clamping high-energy transient voltage spikes. Its ultra-fast response time enables immediate suppression of surge events, effectively protecting critical components such as ICs, microcontrollers, and communication interfaces.
The device supports a peak pulse power dissipation of 400W (10/1000 µs waveform), providing strong energy absorption capability and reliable performance under repetitive surge conditions. Compared to lower-voltage TVS diodes, the SMA6J54A offers a higher breakdown threshold, making it suitable for applications requiring enhanced voltage margin and improved system robustness.
Built using advanced silicon avalanche technology, it ensures low leakage current, precise clamping behavior, and long-term operational reliability. This makes it a dependable solution for safeguarding electronic systems operating in harsh electrical environments with frequent transient disturbances.
Key Features
- 400W peak pulse power dissipation (10/1000 µs waveform)
- 54V reverse standoff voltage for medium-voltage circuit 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 electronic systems and ECU protection
- Industrial automation and control equipment
- Power supply line and DC rail protection
- Communication interfaces (RS-485, RS-232, Ethernet ports)
- Consumer electronics and smart devices
- LED lighting drivers and power modules
- Portable and battery-powered electronic systems
- I/O ports and signal line ESD protection systems
