The SM8S40A-Q1-H is a high-reliability 40V Transient Voltage Suppressor (TVS) Diode manufactured by FORMOSA MICROSEMI. This unidirectional TVS diode is designed to protect sensitive electronic components from voltage transients induced by inductive load switching and lightning. With a standoff voltage of 66V, it provides excellent surge protection in demanding environments. The SM8S40A-Q1-H comes in a DO-220AA package, offering easy mounting and efficient heat dissipation. It is suitable for automotive, industrial, and telecommunications applications where transient voltage protection is critical. As an authorized distributor of FORMOSA MICROSEMI, Supreme Components International guarantees the authenticity and quality of this product. Benefit from our extensive inventory and expert support.