STMicroelectronics 1-Element Uni-Directional TVS Diode Surface Mount 400W 2-Pin DO-214 SMAJ40A-TR

STMicroelectronics SMAJ40A-TR is a high-performance 1-Element Uni-Directional Transient Voltage Suppression (TVS) Diode rated for 400W peak pulse power dissipation. Designed in a compact 2-Pin DO-214 surface mount package, it provides robust protection against voltage spikes and transient surges that can damage sensitive electronic circuits. The device is suitable for use in industrial, automotive, and consumer electronics applications requiring reliable overvoltage protection.

The diode exhibits a minimum breakdown voltage of 44.4V with a maximum reverse standoff voltage of 40V, making it ideal for clamping transient voltage spikes effectively at a clamping voltage of 84V. It supports transient currents up to 27A peak pulse, with a very low leakage current of 1 microampere, ensuring minimal power loss and enhanced circuit integrity. The operating temperature range from -55°C to 150°C makes it robust in extreme temperature environments.

With dimensions of 4.6mm length, 2.9mm width, and 2.25mm height, the SMAJ40A-TR enables space-saving designs and can be surface mounted easily. It belongs to the SMAJxxA series, known for reliability and consistency in transient voltage suppression. The diode is typically supplied on reels for automated placement in manufacturing, boosting production efficiency.

This TVS diode is widely applicable in industrial automation, power supplies, telecommunications, automotive systems, and consumer electronics where protection from voltage transients is critical for system safety and longevity.

The diode features a minimum breakdown voltage of 44.4V for reliable transient voltage suppression. It supports surface mount installation with a compact DO-214 package type measuring 4.6mm length, 2.9mm width, and 2.25mm height.

The maximum reverse standoff voltage is rated at 40V with a clamping voltage of 84V during transient events. It has a maximum peak pulse current capability of 27A and a test current of 1mA. Operating temperature ranges from -55°C to 150°C, suitable for harsh industrial environments.

The diode maintains a low maximum reverse leakage current of 1μA, increasing efficiency and reliability. This product belongs to the SMAJxxA series and contains a single element per chip. It is designed to protect sensitive electronic components from voltage spikes and electrostatic discharge.

Package is suitable for automated insertion via supplied reel packaging, improving production workflow. Explore more STMicroelectronics TVS Diodes and other semiconductor solutions at EnvMart for your electronics design and production needs.