STMicroelectronics 1-Element Uni-Directional TVS Diode 400 W 2-Pin DO-214 SMAJ12A-TR

STMicroelectronics SMAJ12A-TR is a 1-Element Uni-Directional TVS Diode engineered for transient voltage suppression in sensitive electronic circuits. With a peak pulse power rating of 400 W, this device provides robust protection against voltage surges and transient spikes.

The device features a single diode configuration and a uni-directional design to effectively clamp and suppress transient voltages, making it ideal for use in power electronics, semiconductor protection, automotive electronics, industrial control, and communication equipment.

It is housed in a surface mount DO-214 package allowing for easy assembly on printed circuit boards with precise and compact layout requirements. The diode offers a minimum breakdown voltage of 13.3 V and a maximum reverse stand-off voltage of 12 V, enabling the suppression of voltage transients that exceed circuit voltage limits.

Thermal performance is robust with an operating temperature range from -55°C to 150°C, suitable for industrial and harsh operating environments. The device delivers a peak pulse current of up to 91 A and includes ESD protection for enhanced circuit safety. Its low maximum reverse leakage current of 200 nA ensures minimal leakage and power dissipation under normal operating conditions.

The compact physical dimensions of 4.6 mm length, 2.95 mm width, and 2.03 mm height enable flexible design implementations in space-constrained applications. Single diode configuration ensures reliable protection against voltage spikes.

Uni-directional design provides efficient transient voltage suppression. Surface mount DO-214 package facilitates easy PCB integration. Peak pulse power rating of 400 W suitable for high surge currents. Operating temperature from -55°C to 150°C suits harsh industrial environments.

Low maximum reverse leakage current reduces power loss. ESD protection included for enhanced safety. Compact dimensions allow flexible application design.

This TVS Diode is part of the SMAJxxA series by STMicroelectronics, supporting a wide range of transient suppression applications in electronics manufacturing, automotive electronics, power systems, and industrial equipment.

EnvMart customers benefit from this product’s reliability and performance for implementing circuit protection in electronics assembly, design, and maintenance.