The SM6NT40A-H is a surface-mount Transient Voltage Suppressor (TVS) diode from Formosa Microsemi, designed for effective circuit protection. This diode is specifically engineered to safeguard sensitive electronic devices from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). Featuring a power dissipation rating of 400W and a breakdown voltage of 6V, the SM6NT40A-H offers reliable overvoltage protection. Its compact SOD-523 package makes it suitable for high-density PCB layouts. Typical applications include data lines, signal lines, and microprocessor-based equipment. As an authorized distributor of Formosa Microsemi, Supreme Components International guarantees the authenticity and quality of this component. This TVS diode provides a cost-effective solution for enhancing the reliability and longevity of electronic systems.