SMDJ28A-AT 3000W 28V TVS Diode SMDJ-AT | RUILON

The SMDJ28A-AT is a 3000W transient voltage suppressor (TVS) diode designed to protect electronic circuits from electrostatic discharge (ESD), lightning surges, and fast transient voltage spikes. With a 28V standoff voltage, it provides reliable and accurate overvoltage clamping while maintaining stable operation for low- to mid-voltage power and signal line applications.

Housed in the SMC (DO-214AB) surface-mount package, the SMDJ-AT series delivers superior surge handling capability compared to SMBJ and SMCJ families, making it ideal for circuits exposed to high-energy transient conditions. The device features ultra-fast response time, ensuring immediate suppression of voltage spikes to safeguard ICs, communication interfaces, and control electronics. Its low leakage current improves system efficiency, while the glass-passivated junction structure ensures long-term reliability and thermal stability under harsh environments.

The 28V rating offers increased operating margin, making it suitable for modern electronic systems requiring strong and stable surge protection performance.

Key Features

• 3000W peak pulse power capability
• 28V standoff voltage for enhanced operating margin
• Ultra-fast response to ESD and surge transients
• Low leakage current for efficient operation
• High surge absorption (8/20 µs waveform)
• SMC (DO-214AB) high-power SMD package
• Glass-passivated junction for high reliability
• Bidirectional protection design

Applications

• High-power surge protection circuits
• Industrial automation systems
• Telecom and networking equipment
• Power supply protection
• Data and signal line ESD protection
• LED lighting and driver circuits
• Automotive and heavy-duty electronic systems