The P4SMAJ30CA-AQ is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diotec. Supreme Components International is an authorised distributor of Diotec 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, it effectively clamps transient voltages to safe levels, preventing damage to downstream components. The P4SMAJ30CA-AQ features a 30V standoff voltage and is housed in a compact SMA (DO-214AC) package, making it suitable for space-constrained applications. Its robust construction and reliable performance make it an excellent choice for protecting a wide range of electronic equipment.