P6SMB18AT3

The P6SMB18AT3 is a 600W peak power unidirectional Zener transient voltage suppressor diode manufactured by ON Semiconductor. It is designed to protect sensitive electronic circuits from high voltage transients. Key electrical specifications include a reverse standoff voltage of 15.3 V, a maximum clamping voltage of 25.2 V at 24 A peak pulse current, and a typical response time of less than 1 ns. The device also features an ESD rating of Class 3 (>16 kV) per the Human Body Model.

This TVS diode operates over a wide temperature range of -65°C to 150°C and has a capacitance of 1000 pF at 1 MHz. It is rated for automotive applications and is suitable for use in communication systems, industrial controls, medical equipment, and power supplies. The part is provided in a DO-214AA (SMB) surface mount package with unidirectional polarity, indicated by a cathode band.

The P6SMB18AT3 is offered in lead-free (Pb-Free) packages and is claimed to be RoHS3 compliant, REACH unaffected, and has an MSL rating of 1 (unlimited). However, these compliance claims are unverified. The datasheet covers the P6SMB6.8AT3 series, and specific parameters such as breakdown voltage and leakage current for this variant are not available from the input data.