The BZT52B43 is a single zener diode designed for voltage regulation and protection applications. It has a zener voltage rating of 43V with a tolerance of ±3.12%. The maximum power dissipation is 500mW, and the forward voltage drop is 900mV @ a forward current of 10mA. With a reverse leakage current of 100nA @ 32V and an impedance of 100 ohms, the BZT52B43 provides efficient voltage regulation. This zener diode is surface mountable and comes in a SOD-123 package. It is part of the BZT52Bxxx series and is supplied in a tape and reel package of 3,000 pieces. Manufactured by GOOD-ARK Electronics, the BZT52B43 is an active product in their portfolio.