The BZX84C75 with Zener Diodes from Semtech is a RoHS (Restriction of Hazardous Substances) compliant, three-pin, surface-mount SOT-23-3 package with a Zener diode. This component is used as a voltage regulator for DC power supplies, mobile phones, PDAs, and other electronic applications. With Zener breakdown voltages ranging from 4.3 to 75V, the device provides stable bias over temperature, as well as ESD tolerance up to 2KV. This diode is capable of continuous low-power operation in both AC and DC circuits, with a maximum power dissipation of 500mW.