Littelfuse 1-Element Bi-Directional Surface Mount TVS Diode 400 W, 400 V, DO-214 SMAJ400CA

Littelfuse SMAJ400CA is a high-reliability 1-element bi-directional transient voltage suppression (TVS) diode designed to protect electronic circuits against voltage spikes and transient surges. This surface mount device is housed in a compact DO-214 package with dimensions 4.5 mm length, 2.79 mm width, and 2.087 mm height, making it ideal for automated PCB assembly in industrial, automotive, and consumer electronic applications.

The diode features a minimum breakdown voltage of 447 V, a maximum reverse stand-off voltage of 400 V, and can dissipate peak pulsed power up to 400 W, ensuring robust protection against transient voltage events. It clamps the voltage at 649 V to safeguard sensitive components. Operating over a wide temperature range from -65°C to 150°C, the SMAJ400CA maintains dependable operation in harsh environments and demanding electrical conditions.

This bi-directional TVS diode has low maximum reverse leakage current of 1 µA for energy efficiency and includes electrostatic discharge (ESD) protection. It is manufactured under Littelfuse’s quality standards but has no specific approvals or automotive certifications listed. The single element design with two pins simplifies circuit integration and reduces board space.

Applications include protection of power supplies, data lines, and communication interfaces in industrial control systems, telecommunications infrastructure, automotive electronics, and consumer devices. The surface mount DO-214 package supports high volume manufacturing and cost-effective assembly processes.

Provides bi-directional transient voltage suppression for electronic circuits. Single diode configuration with 2-pin DO-214 surface mount package. Minimum breakdown voltage of 447 V and maximum reverse stand-off voltage of 400 V.

Clamping voltage of 649 V and peak pulse power dissipation of 400 W. Operating temperature range from -65°C to 150°C for reliable performance. Low maximum reverse leakage current of 1 µA to minimize power loss. ESD protection included for enhanced circuit safety.

Compact dimensions: length 4.5 mm, width 2.79 mm, height 2.087 mm. SMAJ series diode suitable for surface mount assembly.

For engineers and purchasing professionals, the Littelfuse SMAJ400CA TVS Diode offers a proven solution for safeguarding sensitive electronics from transient electrical threats. Explore more Littelfuse semiconductor components for comprehensive circuit protection at EnvMart.