Littelfuse Bi-Directional TVS Diode, 600 W, 44.4V Breakdown, 40V Stand-off, DO-214 Surface Mount SMBJ40CA

The Littelfuse SMBJ40CA is a bi-directional transient voltage suppression diode engineered to protect sensitive electronic circuits from damaging voltage spikes and transients. Featuring a surface mount DO-214 package, it offers high reliability for applications demanding robust surge protection, such as industrial control systems, communication infrastructure, consumer electronics, and automotive modules.

This TVS diode achieves a peak pulse power dissipation of 600 W, suitable for protecting components against lightning and other abrupt transient events. Its minimum breakdown voltage of 44.4V and maximum stand-off voltage of 40V ensure precise operational thresholds for digital and analog interfaces. The clamping voltage at 64.5V effectively limits excessive voltages, preventing equipment failure.

The SMBJ40CA boasts fast response times, typically less than 1.0 picosecond, which guarantees nearly instantaneous suppression of voltage surges. The glass passivated chip junction delivers improved thermal stability and minimal reverse leakage (less than 1 μA), making it ideal for long-term, maintenance-free installation. Its operating temperature range spans from -65°C to 150°C, supporting high-temperature soldering processes up to 260°C for terminal robustness.

Designed specifically for surface mount applications, the industry-standard DO-214 package and its low profile (2.41 mm height) maximize board space and facilitate automated assembly. This diode is suitable for use in circuit protection for microcontrollers, interfaces, sensors, power supply rails, and automotive electronics, where transient events are common.

Additional features include ESD protection, built-in strain relief, halogen-free construction, and matte tin lead-free plating, ensuring compliance with environmental directives and reliability requirements.

Bi-directional transient voltage suppression for sensitive circuit protection. 600 W peak pulse power dissipation against lightning and surge events. Precise voltage thresholds - breakdown, stand-off, and clamping voltages for robust operation.

Rapid response time for instantaneous protection. Glass passivated chip junction ensures high thermal and electrical stability. Operates reliably across a wide temperature spectrum and supports high-temperature soldering.

Low reverse leakage current and ESD protection for stable, maintenance-free service. Ideal for industrial, automotive, communication, and consumer PCB designs. Browse EnvMart for TVS Diodes and Littelfuse surge protection solutions for electronics design, manufacturing, and system integration projects.