The P4SMAJ18CA-Q is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diotec. Supreme Components International is an authorised distributor of Diotec electronic components, ensuring you receive genuine and reliable parts. This TVS diode is designed to protect sensitive electronic circuits from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). With a power dissipation rating of 400W and a reverse standoff voltage of 18V, the P4SMAJ18CA-Q effectively clamps transient voltages to safe levels, preventing damage to downstream components. Its SMA (Surface Mount Assembly) package allows for easy integration into printed circuit boards. This diode is suitable for a wide range of applications, including automotive, industrial, and consumer electronics, where robust overvoltage protection is crucial. Trust Supreme Components International for your Diotec component needs.