SMBJ14A-AT 600W 14V TVS Diode SMBJ-AT | RUILON

The SMBJ14A-AT is a 600W transient voltage suppressor (TVS) diode designed to protect sensitive electronic circuits from voltage spikes, ESD, and surge transients. With a 14V standoff voltage, it delivers reliable clamping performance while maintaining sufficient operating margin for low-voltage power and signal line applications.

Manufactured in a compact SMB (DO-214AA) surface-mount package, it is optimized for space-saving PCB designs and high-speed automated assembly. The device features ultra-fast response time, ensuring immediate suppression of transient overvoltage events to safeguard ICs, communication ports, and control systems. Its low leakage current improves overall system efficiency, while the glass-passivated junction structure provides strong long-term stability and thermal reliability.

The 14V rating makes it suitable for modern electronic systems requiring a higher protection threshold with stable operating headroom, especially in industrial, telecom, and consumer electronic environments where surge conditions are common.

Key Features

• 600W peak pulse power capability
• 14V standoff voltage for higher operating margin
• Fast response to ESD and surge transients
• Low leakage current for energy-efficient operation
• High surge absorption (8/20 µs waveform)
• SMB (DO-214AA) compact SMD package
• Glass-passivated junction for high reliability
• Bidirectional surge protection

Applications

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