1.0SMBJ43A 43V 1000W TVS Diode SMB/DO-214AA | High Power Transient Voltage Suppressor for Surge & ESD Protection | RUILON

RUILON

The 1.0SMBJ43A 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). Built with advanced avalanche breakdown technology, this device ensures ultra-fast response time and precise clamping performance, effectively limiting transient overvoltage conditions and enhancing system reliability.

With a working peak reverse voltage of 43V, the 1.0SMBJ43A is suitable 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) provides significantly stronger surge absorption capability compared to standard 600W TVS diodes, ensuring improved protection under harsh electrical environments.

The device features low leakage current, stable clamping characteristics, and excellent thermal performance, allowing efficient operation and long-term durability. Compared to lower voltage variants, the 43V configuration offers 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 1.0SMBJ43A supports space-saving PCB layouts and easy integration into modern electronic designs. 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)
  • 43V 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