The SMASF40A-Q1-H is a surface-mount Transient Voltage Suppressor (TVS) diode from FORMOSA MICROSEMI, designed to protect sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and inductive load switching. This diode features a 400W peak pulse power dissipation capability and a 40V reverse standoff voltage. Housed in a compact SMA (DO-214AC) package, it offers a reliable and space-saving solution for circuit protection. The SMASF40A-Q1-H is commonly used in automotive, industrial, and consumer electronics applications. Supreme Components International is an authorized distributor of FORMOSA MICROSEMI, guaranteeing genuine components and reliable performance. This TVS diode provides a fast response time and low clamping voltage, ensuring effective protection for your valuable circuits.