The SMAJ85A TVS Diode from RUILON is a high-performance 400W transient voltage suppressor designed to protect electronic circuits from voltage spikes, lightning surges, and electrostatic discharge (ESD). With an 85V stand-off voltage, this device is optimized for high-voltage applications, offering enhanced protection margins compared to lower-voltage TVS diodes while preventing false triggering during normal operation. Utilizing advanced silicon avalanche technology, it provides ultra-fast response time, low leakage current, and precise clamping performance, ensuring effective suppression of transient overvoltage events.
Engineered for reliability in demanding environments, the SMAJ85A delivers excellent thermal stability and high peak pulse current capability under 8/20µs surge conditions. Its superior surge absorption capacity enhances system durability and extends the lifespan of connected components, making it suitable for continuous and repetitive surge exposure scenarios.
Housed in the industry-standard SMA (DO-214AC) surface-mount package, this diode supports compact PCB layouts and automated assembly, making it ideal for modern electronic designs requiring both space efficiency and high protection performance.
The SMAJ85A is widely used in power supplies, automotive electronics, industrial control systems, telecommunications infrastructure, and consumer electronics, providing dependable protection against transient voltage threats. It is an excellent choice for engineers seeking compact, efficient, and high-reliability surge protection solutions.
Key Specifications:
- Part Number: SMAJ85A
- Peak Pulse Power Dissipation: 400W (8/20µs)
- Stand-off Voltage (VRWM): 85V
- Breakdown Voltage: ~94.4V – 104.3V
- Clamping Voltage: ~137V
- Response Time: Picoseconds
- Leakage Current: Low
- Package: SMA / DO-214AC
- Type: Unidirectional TVS Diode
Applications:
- Power supply surge protection
- Automotive electronic systems
- Industrial control equipment
- Telecom and networking devices
- Consumer electronics
Key Features:
- 400W peak pulse power capability
- Ultra-fast transient response
- Low leakage current for improved efficiency
- Accurate and stable clamping voltage
- High thermal stability and long-term reliability
- Compact SMA package for space-saving PCB layouts
- Suitable for high-voltage protection applications
