Littelfuse 1-Element Bi-Directional TVS Diode 400 W, 2-Pin DO-214 SMAJ400CA

Littelfuse SMAJ400CA 1-Element Bi-Directional TVS Diode is a high-performance transient voltage suppressor designed for protecting semiconductor devices from voltage spikes and ESD events. It delivers a peak pulse power dissipation of 400 W and supports a bidirectional diode configuration, ensuring effective clamping from both voltage polarities.

Its compact DO-214 surface mount package, measuring 4.5 mm in length, 2.79 mm in width, and 2.087 mm in height, makes it suitable for space-constrained PCB designs where robust surge protection is critical. The device maintains stability in ambient temperatures ranging from -65°C to 150°C, making it adaptable for demanding industrial, automotive, and electronics manufacturing applications.

The SMAJ400CA model features a minimum breakdown voltage of 447 V and a maximum reverse stand-off voltage of 400 V, with a clamping voltage of 649 V to limit voltage spikes effectively. Its low reverse leakage current (max 1 µA) and ESD protection capabilities ensure reliable performance and long-term durability in circuits sensitive to transient surges.

This transient voltage suppressor is widely used in power supplies, telecommunications, automotive electronics, and semiconductor devices to safeguard components against damaging voltage transients and improve system reliability.

This TVS diode features a single diode configuration optimized for bidirectional voltage suppression. It has a minimum breakdown voltage of 447 V and maximum reverse stand-off voltage of 400 V. The device clamps voltage at 649 V to protect sensitive electronics from transient voltage spikes.

Operates reliably in temperatures from -65°C up to a maximum of 150°C, suitable for harsh industrial environments. The compact DO-214 package dimensions are 4.5 mm length, 2.79 mm width, and 2.087 mm height. Designed with a peak pulse current rating of 0.6 A and very low maximum reverse leakage current of 1 µA.

ESD protection is integrated to ensure durable performance against electrostatic discharges. Appropriate for applications in semiconductor circuits requiring transient voltage suppression and surge protection. Automotive standard compliance is not applied to this model.

The device is part of the SMAJ series, known for reliable surface mount transient voltage suppression. Explore Littelfuse products and related TVS Diode solutions on EnvMart for industrial, laboratory, manufacturing, and electronic component needs.