STMicroelectronics

SM15T12CA

SM15T12CA Description

The SM15T12CA from STMicroelectronics is a surface-mount TVS diode designed for general-purpose transient voltage suppression in electronic circuits. Part of the SM15T, TRANSIL™ series, it offers robust protection with a 10.2V reverse standoff voltage and a minimum breakdown voltage of 11.4V, clamping transient voltages up to 21.7V at 461A (8/20µs). Its bidirectional channel ensures protection against both positive and negative voltage spikes, making it versatile for a wide range of applications. Packaged in SMC (DO-214AB) and supplied in tape & reel (TR), it is optimized for automated assembly processes.

SM15T12CA Features

• High Power Handling: 1500W (1.5kW) peak pulse power dissipation ensures reliable protection against high-energy transients.
• Low Clamping Voltage: 21.7V maximum clamping voltage minimizes stress on downstream components.
• Bidirectional Protection: Single-channel design safeguards against both polarities of transient surges.
• Compact & Robust: SMC package offers a space-saving footprint while maintaining high durability.
• Compliance & Reliability: ROHS3 compliant, REACH unaffected, and MSL 1 (unlimited) for environmental and handling resilience.
• Wide Operating Range: Suitable for general-purpose applications requiring transient suppression in power supplies, communication lines, and industrial systems.

SM15T12CA Applications

• Industrial Electronics: Protects sensitive control systems from voltage spikes in PLCs, motor drives, and sensors.
• Telecom & Networking: Shields communication interfaces (RS-485, Ethernet) from ESD and lightning-induced surges.
• Consumer Electronics: Safeguards USB ports, audio/video inputs, and power rails in portable devices.
• Automotive Systems: Used in 12V automotive buses to mitigate load-dump and switching transients.
• Power Supplies: Enhances reliability in DC-DC converters and AC/DC adapters by suppressing inductive kickback.

Conclusion of SM15T12CA

The SM15T12CA stands out as a high-performance TVS diode combining robust surge protection, bidirectional functionality, and compact packaging. Its low clamping voltage and high power dissipation make it ideal for demanding environments where transient suppression is critical. Whether in industrial, automotive, or consumer applications, this diode ensures enhanced system longevity and compliance with industry standards. For engineers seeking a cost-effective, reliable solution for transient voltage protection, the SM15T12CA delivers superior performance in a space-efficient form factor.