The SMAJ300A TVS Diode from RUILON is a high-performance 400W transient voltage suppressor designed to protect sensitive electronic circuits from voltage spikes, lightning surges, and electrostatic discharge (ESD). With a 300V stand-off voltage, this device is optimized for high-voltage applications, offering significantly higher protection margins compared to lower-voltage TVS diodes while preventing false triggering during normal operation. Built using advanced silicon avalanche technology, it ensures ultra-fast response time, low leakage current, and precise clamping performance, delivering efficient suppression of transient overvoltage events.
Engineered for durability and reliability, the SMAJ300A provides excellent thermal stability and high peak pulse current capability under 8/20µs surge conditions, enabling consistent protection even in harsh electrical environments and repeated surge exposure. Its strong surge absorption capability enhances overall system reliability and extends the lifespan of protected components.
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 electronic designs requiring both performance and space efficiency. Its rugged construction ensures dependable operation across a wide range of applications.
The SMAJ300A is widely used in power supplies, industrial control systems, telecommunications infrastructure, automotive electronics, and consumer devices, delivering reliable protection against transient voltage threats. It is an excellent solution for engineers seeking compact, efficient, and high-reliability surge protection.
Key Specifications:
- Part Number: SMAJ300A
- Peak Pulse Power Dissipation: 400W (8/20µs)
- Stand-off Voltage (VRWM): 300V
- Breakdown Voltage: ~333V – 368V
- Clamping Voltage: ~486V
- Response Time: Picoseconds
- Leakage Current: Low
- Package: SMA / DO-214AC
- Type: Unidirectional TVS Diode
Applications:
- Power supply surge protection
- Industrial control equipment
- Telecommunications systems
- Automotive electronics
- Consumer electronics
Key Features:
- 400W peak pulse power capability
- Ultra-fast transient response
- Low leakage current for improved efficiency
- Accurate and stable clamping performance
- High thermal stability and long-term reliability
- Compact SMA package for high-density PCB layouts
- Suitable for high-voltage protection applications
