1.0SMBJ40A 40V 1000W TVS Diode SMB/DO-214AA | High Power Transient Voltage Suppressor for Surge & ESD Protection | RUILON

RUILON

The 1.0SMBJ40A TVS Diode from RUILON is a high-performance 1000W transient voltage suppressor designed to protect sensitive electronic circuits from voltage spikes, lightning surges, and electrostatic discharge (ESD). Using advanced avalanche breakdown technology, this device provides ultra-fast response time and precise clamping performance, ensuring effective suppression of transient overvoltage events and improved system reliability.

With a working peak reverse voltage of 40V, the 1.0SMBJ40A is well-suited for low-voltage to mid-voltage applications such as DC power rails, communication interfaces, and embedded electronic systems. Its high peak pulse power dissipation of 1000W (10/1000µs waveform) delivers significantly stronger surge absorption capability compared to standard 600W TVS diodes, enhancing protection under harsh electrical conditions.

The device features low leakage current, stable clamping characteristics, and excellent thermal performance, ensuring efficient operation and long-term durability. Compared to lower voltage variants, the 40V configuration provides increased voltage headroom, reducing the risk of unintended triggering while maintaining strong transient suppression capability.

Encased in a compact SMB (DO-214AA) surface-mount package, the 1.0SMBJ40A supports space-efficient PCB design and easy integration into modern electronic systems. It is widely used in consumer electronics, power supplies, communication equipment, and industrial control systems, delivering dependable protection and consistent performance.


Key Features:

  • 1000W peak pulse power dissipation (10/1000µs)
  • 40V working peak reverse voltage
  • Ultra-fast response time
  • Low leakage current and high reliability
  • Excellent clamping capability
  • Compact SMB (DO-214AA) SMD package

Applications:

  • Power supply protection
  • Communication systems
  • Consumer electronics
  • Industrial control systems
  • Embedded electronic devices