The BZT52-C39_R1_00001 with Zener Diodes /WX/TR/7"/HF/3K/SOD-123/ZEN/SOD/ZSM-04/ZSM04-QI01/PJ/// is a device manufactured by Panjit. It is a standard SOD-123 zener diode with a ZSM-04 package and a Vz of 3.3V. The power dissipation capability is 500mW, with a maximum reverse leakage current of 5mA. The part has a surge current rating of 3A, and a surge peak power rating of 4 Watts. It also features high-frequency characteristics for use in high-frequency circuits, and a lead-free RoHS package. Furthermore, it is AEC-Q101 qualified making it suitable for use in automotive applications.