SMAJ12A-AT 12V 400W TVS Diode SMA/DO-214AC | RUILON

RUILON

The SMAJ12A-AT TVS Diode from RUILON is a high-reliability 400W transient voltage suppressor designed to protect sensitive electronic circuits from lightning-induced surges, voltage spikes, and electrostatic discharge (ESD). Using advanced avalanche breakdown technology, it ensures fast response time and stable clamping performance for dependable circuit protection in compact electronic systems.

With a working peak reverse voltage of 12V, the SMAJ12A-AT is ideal for low-voltage DC power line protection in consumer electronics, communication devices, industrial control systems, and embedded applications. Its 400W peak pulse power capability (10/1000µs waveform) provides effective absorption of transient energy while maintaining low leakage current and high reliability.

Packaged in a compact SMA (DO-214AC) surface-mount format, the device supports high-density PCB layouts and delivers strong thermal stability under repeated surge conditions. It is designed for consistent performance and long operational life, making it a reliable solution for protecting modern sensitive electronic components.


Key Features:

  • 400W peak pulse power dissipation (10/1000µs)
  • 12V working peak reverse voltage
  • Fast transient response for surge protection
  • Low leakage current and high reliability
  • Strong clamping capability for ESD suppression
  • Compact SMA (DO-214AC) SMD package

Applications:

  • DC power line protection
  • Consumer electronics
  • Communication equipment
  • Industrial automation systems
  • Embedded electronic circuits
  • Portable electronic devices