SMAJ19A-AT 19V 400W TVS Diode SMA/DO-214AC | RUILON

The SMAJ19A-AT TVS Diode from RUILON is a 400W transient voltage suppressor designed to protect sensitive electronic circuits from lightning surges, voltage spikes, and electrostatic discharge (ESD). Built with advanced avalanche breakdown technology, it provides fast response time and stable clamping performance, ensuring reliable protection for modern low-voltage electronic systems.

With a working peak reverse voltage of 19V, the SMAJ19A-AT is ideal for DC power line protection in consumer electronics, communication devices, industrial control systems, and embedded applications. Its 400W peak pulse power capability (10/1000µs waveform) enables efficient suppression of transient energy while maintaining low leakage current and high reliability.

Housed in a compact SMA (DO-214AC) surface-mount package, the device supports high-density PCB layouts and delivers strong thermal stability under repeated surge conditions. It ensures consistent performance and long service life, making it a reliable solution for protecting sensitive semiconductor components in compact electronic designs.

Key Features:

• 400W peak pulse power dissipation (10/1000µs)
• 19V 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 control systems
• Embedded electronic circuits
• Portable electronic devices