SMCJ48A-AT 1500W 48V TVS Diode SMCJ-AT | RUILON

The SMCJ48A-AT is a 1500W transient voltage suppressor (TVS) diode designed to provide robust protection against electrostatic discharge (ESD), lightning surges, and fast transient voltage spikes. With a 48V standoff voltage, it ensures reliable overvoltage clamping while maintaining stable operation for low- to mid-voltage power and signal line applications.

Encapsulated in the SMC (DO-214AB) surface-mount package, it offers high surge handling capability, making it ideal for circuits exposed to high-energy transients. The device features ultra-fast response time, enabling immediate suppression of transient events to protect ICs, communication interfaces, and control electronics. Its low leakage current improves system efficiency, while the glass-passivated junction structure ensures excellent long-term reliability and thermal stability in demanding environments.

The 48V rating provides increased operating margin compared to lower-voltage devices, making it suitable for modern electronic systems requiring robust and stable surge protection performance.

Key Features

• 1500W peak pulse power capability
• 48V 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

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