STMicroelectronics 1-Element Bi-Directional TVS Diode 400 W 2-Pin DO-214 SMAJ18CA-TR

The STMicroelectronics SMAJ18CA-TR is a 1-element bi-directional Transient Voltage Suppressor (TVS) diode engineered for advanced overvoltage protection in electronic circuits. With a peak pulse power dissipation rating of 400 W and surface mount DO-214 package, this device provides robust defense against transient voltage spikes typically encountered in industrial, automotive, and power supply applications.

This TVS diode features a bi-directional diode configuration, allowing protection of both polarities, ensuring device safety under both positive and negative transients. Its minimum breakdown voltage is rated at 20 V, with a maximum reverse stand-off voltage of 18 V, making it suitable for circuits operating within these voltage limits.

The clamping voltage of 39.3 V ensures effective suppression of voltage spikes, while its maximum peak pulse current of 59 A supports handling high-energy transient events. The device supports a wide operating temperature range from -55°C to 150°C, which makes it adaptable for harsh environments and demanding industrial conditions.

Equipped with low maximum reverse leakage current of 200 nA, the SMAJ18CA-TR preserves overall circuit efficiency. Its compact dimensions (Height: 2.03 mm, Length: 2.95 mm, Width: 4.6 mm) in a DO-214 surface mount package allows it to be integrated easily into printed circuit boards, reducing design complexity.

Applications for this TVS diode include semiconductor protection in electronic and power connector circuits, discrete semiconductor assemblies, and industrial control systems requiring reliable surge suppression. Its inclusion in the SMAJxxCA series exemplifies its design focus on transient voltage protection in modern electronics.

This diode features bi-directional voltage suppression for protection in both polarities. It has a minimum breakdown voltage of 20 V and maximum reverse stand-off voltage of 18 V. The clamping voltage is rated at 39.3 V to safeguard circuits from overvoltage peaks.

Designed for surface mounting, the compact DO-214 package offers easy PCB integration. Operating temperature range spans from -55°C up to 150°C for harsh environments. ESD protection is supported, with a maximum peak pulse current of 59 A.

The device includes a single diode element and has two pins for connection. Maximum reverse leakage current is low at 200 nA to ensure efficiency. Height, length and width dimensions are 2.03 mm, 2.95 mm, and 4.6 mm respectively.

The series SMAJxxCA is tailored for transient voltage suppression in electronic and power circuits. For more products in the TVS Diode category, explore EnvMart’s extensive catalog.