SMBJ22A-AT 600W 22V TVS Diode SMBJ-AT | RUILON

The SMBJ22A-AT is a 600W transient voltage suppressor (TVS) diode designed to protect sensitive electronic circuits from ESD, lightning-induced surges, and fast voltage transients. With a 22V standoff voltage, it provides reliable overvoltage clamping while maintaining stable operation for low-voltage power rails and signal line applications.

Housed in a compact SMB (DO-214AA) surface-mount package, it is optimized for high-density PCB layouts and automated assembly processes. The device features ultra-fast response time, enabling immediate suppression of transient spikes to protect ICs, communication interfaces, and control electronics. Its low leakage current ensures minimal power loss during normal operation, while the glass-passivated junction structure enhances long-term reliability and thermal stability under harsh electrical conditions.

The 22V rating offers a higher protection threshold, making it suitable for modern electronic systems that require stronger surge handling capability and wider operating margins in industrial, telecom, and consumer applications.

Key Features

• 600W peak pulse power capability
• 22V standoff voltage for higher protection threshold
• Fast response to ESD and surge transients
• Low leakage current for efficient operation
• High surge absorption (8/20 µs waveform)
• SMB (DO-214AA) compact SMD package
• Glass-passivated junction for high reliability
• Bidirectional clamping protection

Applications

• Power supply surge protection
• Industrial control systems
• Telecom and networking equipment
• Consumer electronics protection
• Data and signal line ESD protection
• LED lighting and driver circuits
• Automotive low-voltage electronic systems