STMicroelectronics

SMC30J30A

SMC30J30A Description

The SMC30J30A from STMicroelectronics is a surface-mount TVS diode designed for general-purpose transient voltage suppression in electronic circuits. It features a 30V reverse standoff voltage (Typ) and a minimum breakdown voltage of 33.3V, ensuring robust protection against voltage spikes. With a peak pulse power rating of 3000W (3kW) and a clamping voltage of 48.4V at peak pulse current (62A), it effectively safeguards sensitive components from transient events like ESD, lightning surges, and inductive load switching. Packaged in SMC (DO-214AB) and supplied in Tape & Reel (TR), it is optimized for automated assembly.

SMC30J30A Features

• High Power Handling: 3000W peak pulse power (10/1000µs) for superior surge protection.
• Low Clamping Voltage: 48.4V at 62A ensures minimal stress on downstream components.
• Unidirectional Protection: Ideal for DC circuits requiring single-polarity transient suppression.
• RoHS3 & REACH Compliant: Environmentally friendly and suitable for global markets.
• Moisture Sensitivity Level (MSL) 1: Unlimited shelf life with no baking requirements.
• Compact SMC Package: Space-efficient for high-density PCB designs.

SMC30J30A Applications

• Industrial Electronics: Protects PLCs, motor drives, and control systems from voltage transients.
• Automotive Systems: Safeguards infotainment, CAN bus, and power supply lines.
• Telecom & Networking: Shields routers, switches, and base stations from ESD and surges.
• Consumer Electronics: Used in power adapters, USB ports, and LED drivers.
• Power Supplies: Enhances reliability in AC/DC converters and DC-DC modules.

Conclusion of SMC30J30A

The SMC30J30A stands out for its high power dissipation, low clamping voltage, and robust SMC package, making it a preferred choice for transient protection in demanding environments. Its compliance with RoHS3 and REACH, combined with MSL1 suitability, ensures seamless integration into modern electronics. Whether for industrial, automotive, or consumer applications, this TVS diode delivers reliable, high-performance surge protection with minimal footprint.