SMAJ54A TVS Diode SMA/DO-214AC 400W | 54V Transient Voltage Suppressor for Surge Protection | RUILON

RUILON

The SMAJ54A TVS Diode from RUILON is a high-reliability 400W transient voltage suppressor designed to protect electronic circuits from voltage spikes, lightning surges, and electrostatic discharge (ESD). With a 54V stand-off voltage, this device is ideal for higher-voltage applications, providing increased protection margins compared to lower-voltage TVS diodes while minimizing the risk of false triggering. Built using advanced silicon avalanche technology, it offers ultra-fast response time, low leakage current, and precise clamping performance, ensuring effective suppression of transient events.

Engineered for robust operation, the SMAJ54A delivers excellent thermal stability and high peak pulse current capability under 8/20µs conditions, enabling it to withstand harsh electrical environments. Its superior surge absorption capability enhances system reliability and extends the lifespan of connected components.

Encased in the industry-standard SMA (DO-214AC) surface-mount package, this diode supports compact PCB layouts and automated assembly processes, making it suitable for modern high-density electronic designs. The package ensures efficient heat dissipation and consistent performance over time.

The SMAJ54A is widely used in power supplies, automotive electronics, industrial control systems, telecommunications equipment, and consumer electronics, offering dependable protection against transient overvoltage conditions. It is an ideal solution for engineers seeking efficient, compact, and high-performance surge protection.


Key Specifications:

  • Part Number: SMAJ54A
  • Peak Pulse Power Dissipation: 400W (8/20µs)
  • Stand-off Voltage (VRWM): 54V
  • Breakdown Voltage: ~60V – 66.3V
  • Clamping Voltage: ~87.1V
  • Response Time: Picoseconds
  • Leakage Current: Low
  • Package: SMA / DO-214AC
  • Type: Unidirectional TVS Diode

Applications:

  • Power supply protection
  • Automotive electronic systems
  • Industrial control equipment
  • Telecom and networking devices
  • Consumer electronics

Key Features:

  • 400W peak pulse power capability
  • Ultra-fast response to transient events
  • 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 higher voltage surge protection applications