BZT52-B3V9 Tight Tolerance Regulation Diode

BZT52-B3V9 is a 3.9 V voltage-regulator diode for surface-mount designs. It uses an SOD123 package and belongs to the tighter-tolerance B selection, with a specified ±2% Zener-voltage tolerance. The device is intended for general regulation functions where a controlled reverse-breakdown point is required. Apply suitable series resistance to set current through the diode and protect it from excessive dissipation. Review the expected load range because changes in load current can shift the current available to the Zener element. The low nominal voltage also makes bias current and dynamic resistance important during circuit analysis. Also confirm temperature behavior and worst-case voltage limits before completing the design. Request a quote for BZT52-B3V9.