STMicroelectronics 1-Element Uni-Directional TVS Diode 400 W, 2-Pin DO-214 SMAJ170A-TR

STMicroelectronics SMAJ170A-TR is a 1-element uni-directional transient voltage suppressor (TVS) diode designed to protect sensitive electronic circuitry from voltage spikes, surges, and transient events. With a peak pulse power dissipation of 400 watts, it effectively clamps high-energy transient voltages, preventing damage to downstream components in various electronic assemblies.

This diode features a single diode configuration and uni-directional conduction, suitable for protecting DC lines and circuits. Its surface mount package type DO-214 facilitates automated assembly on printed circuit boards, offering a robust and compact footprint.

The device operates reliably across a wide temperature range from -55°C to 150°C, meeting industrial and commercial environmental requirements. With a maximum reverse standoff voltage of 170 V and minimum breakdown voltage of 189 V, it safeguards components operating near these voltage levels. The clamping voltage rating of 353 V ensures voltage transients are held below damaging thresholds during surge events.

Its design incorporates low leakage currents of typically 200 nA, minimizing power dissipation during normal operation and enhancing energy efficiency. The included electrostatic discharge (ESD) protection further extends device reliability in sensitive electronics applications.

The compact form factor measuring 4.6 mm length, 2.95 mm width, and 2.03 mm height allows integration in dense circuit layouts without compromising space.

Typical applications include transient voltage protection in power electronics, telecommunications equipment, industrial control equipment, automotive electronics, consumer electronics, and other circuits exposed to voltage transients. The SMAJ170A-TR is suitable for industrial, manufacturing, and commercial electronic use cases requiring effective and reliable surge protection.

Provides transient voltage suppression for electronic circuits. Single diode configuration with uni-directional directionality. Peak pulse power dissipation rated at 400 watts. Surface mount type with DO-214 package compatible with automated PCB assembly.

Wide operating temperature range from -55°C to 150°C ensures reliable performance. Clamping voltage of 353 V protects sensitive components during voltage spikes. Low leakage current of 200 nA reduces power loss. Test current set at 1 mA for accurate performance characterization.

ESD protection incorporated for enhanced device durability. Compact dimensions of 4.6 mm length, 2.95 mm width, and 2.03 mm height enable space-saving designs. Explore more STMicroelectronics TVS Diodes and semiconductor components on EnvMart for your electronic design and manufacturing needs.