The SMAJ18A-H is a high-performance Transient Voltage Suppressor (TVS) Diode manufactured by Formosa Microsemi. This unidirectional diode is specifically engineered to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). Featuring a breakdown voltage of 18V and a peak pulse power dissipation of 400W, the SMAJ18A-H provides a reliable clamping voltage, preventing overvoltage damage. Its compact SMA package makes it suitable for space-constrained applications. As an authorized distributor of Formosa Microsemi, Supreme Components International guarantees the authenticity and quality of this TVS diode. Ideal for use in telecommunications, industrial control, and consumer electronics.