STMicroelectronics 1-Element Uni-Directional TVS Diode 1.5 kW 2-Pin DO-214 SM15T22AY

STMicroelectronics SM15T22AY is a high-performance 1-element uni-directional Transient Voltage Suppressor (TVS) diode designed for surface mount applications in electronic circuits. It delivers a peak pulse power dissipation of 1.5 kW, effectively protecting sensitive semiconductor devices from voltage transients caused by inductive load switching and lightning surge events.

This diode features a single diode configuration with a unidirectional orientation, ideal for protecting circuits from voltage spikes in one direction. The compact DO-214 package allows easy integration into PCB designs and supports a surface mount mounting type, facilitating high production efficiency.

Operational performance is guaranteed across a wide temperature range from -40°C up to 150°C, making it suitable for demanding industrial and automotive environments. The component holds a minimum breakdown voltage (Vbr) of 20.9V and a maximum reverse standoff voltage (Vwm) of 18.8V, ensuring reliable clamping of voltage surges up to a maximum clamping voltage (Vc) of 39.3V.

The diode sustains high transient currents up to a peak pulse current (Ippm) of 254A, enabling robust surge protection. Additionally, the device maintains very low leakage current with a maximum reverse leakage of only 1μA at rated voltage, reducing power consumption when in standby mode. Its automotive-grade certification under AEC-Q101 confirms its suitability for stringent quality and reliability requirements in automotive electronics.

Its physical dimensions are 7.15 mm in length, 6.25 mm in width, and 2.45 mm in height, facilitating compact and efficient PCB implementations. This device is part of the SM15TY series by STMicroelectronics, known for their high efficiency and durability in TVS diodes.

Provides robust transient voltage suppression in electronic circuits. Uni-directional diode configuration suitable for protecting sensitive components. Surface mount mount type in compact DO-214 package ensures efficient PCB layout.

Operates reliably from -40°C to 150°C for industrial use. Peak pulse current rating of 254A for effective surge handling. Minimum breakdown voltage of 20.9V with maximum reverse stand-off voltage of 18.8V. Low maximum reverse leakage current of 1μA minimizes power loss.

Complies with automotive standard AEC-Q101 for quality assurance. Compact dimensions of 7.15mm length, 6.25mm width, and 2.45mm height.

This TVS diode is ideal for industrial automation, automotive electronics, communication equipment, and power supply protection where reliable transient voltage suppression is critical for device longevity and safety.

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