STMicroelectronics Uni-Directional TVS Diode 2-Pin DO-214 400 W SMAJ28A-TR

STMicroelectronics SMAJ28A-TR is a single-element uni-directional Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic components from voltage spikes and surges. It features a robust 2-pin DO-214 surface mount package capable of dissipating peak pulse power up to 400 W. This high transient voltage energy handling makes it ideal for safeguarding power supply lines and signal lines against transient voltage events.

The device offers a minimum breakdown voltage of 31.1 V and a maximum reverse standoff voltage of 28 V, ensuring it remains non-conductive during normal operation while providing effective clamping when voltages exceed safe limits. It has a clamping voltage of 59 V to protect circuits during peak transients.

With a maximum peak pulse current (Ippm) of 39 A and low leakage current of 200 nA, the SMAJ28A-TR provides efficient surge protection with minimal power dissipation. It operates reliably over a wide temperature range from -55°C to 150°C, suitable for demanding industrial, automotive, and commercial applications. The compact 4.6 mm by 2.95 mm by 2.03 mm footprint allows easy integration into densely packed PCBs.

This TVS diode is widely used in electronic and electrical equipment manufacturing, industrial automation systems, telecommunications, and automotive electronics where protection against electrostatic discharge (ESD) and transient voltage surges is critical.

Single diode configuration suitable for transient voltage suppression. Minimum breakdown voltage of 31.1 V ensures reliable clamping at voltage transients. Maximum peak pulse current rating is 39 A for robust surge protection.

Operating temperature range from -55°C up to 150°C supports harsh environments. Compact dimensions of 4.6 mm length, 2.95 mm width, and 2.03 mm height facilitate PCB space optimization. Clamping voltage of 59 V enhances circuit safety during transient events.

Low maximum reverse leakage current of 200 nA reduces power loss during normal operation. 2-pin DO-214 surface mount package ensures easy automated assembly.

EnvMart offers this STMicroelectronics SMAJ28A-TR TVS Diode as a reliable component for protecting electronic assemblies in industrial, automotive, telecommunication, and consumer electronics sectors. Explore our semiconductor and discrete component catalog for compatible devices and assembly accessories.