The SMA6J18A TVS Diode from RUILON is a high-performance 400W transient voltage suppressor designed to protect low-voltage electronic circuits from electrostatic discharge (ESD), voltage spikes, and transient surges. Featuring an 18V stand-off voltage, this device is ideal for safeguarding sensitive components such as microcontrollers, communication interfaces, and DC power rails. Built using advanced silicon avalanche technology, it delivers ultra-fast response time, low leakage current, and precise clamping performance, ensuring reliable protection without impacting normal circuit functionality.
Engineered for long-term reliability, the SMA6J18A provides excellent thermal stability and high peak pulse current capability under 8/20µs surge conditions, making it suitable for applications exposed to repeated transient events. Compared to lower-voltage variants, the 18V rating offers enhanced voltage tolerance, reducing the likelihood of false triggering while maintaining effective surge suppression.
Encased in the industry-standard SMA (DO-214AC) surface-mount package, this diode supports compact PCB layouts and automated assembly processes, making it ideal for modern high-density electronic designs. Its robust construction ensures stable performance and extended service life.
The SMA6J18A is widely used in consumer electronics, embedded systems, communication equipment, portable devices, and power management circuits, delivering dependable protection against transient overvoltage conditions. It is an excellent solution for engineers seeking compact, efficient, and reliable low-voltage surge protection.
Key Specifications:
- Part Number: SMA6J18A
- Peak Pulse Power Dissipation: 400W (8/20µs)
- Stand-off Voltage (VRWM): 18V
- Breakdown Voltage: ~20.0V – 22.1V
- Clamping Voltage: ~29.2V
- Response Time: Picoseconds
- Leakage Current: Low
- Package: SMA / DO-214AC
- Type: Unidirectional TVS Diode
Applications:
- Power line and DC rail protection
- Embedded systems and microcontrollers
- Portable and handheld devices
- Consumer electronics
- Communication interfaces
Key Features:
- 400W peak pulse power capability
- Ultra-fast transient response for ESD protection
- Low leakage current for improved efficiency
- Accurate and stable clamping performance
- High thermal stability and long-term reliability
- Compact SMA package for space-saving PCB layouts
- Suitable for low-voltage protection applications
