MicrosemiThe ZS4746A Zener diode from Formosa Microsemi is a small size surface mount diode in a SMA DO-214AC (aka SMB) package. It is a dual-Biased, symmetric, and low-power Zener diode with 500 mW power dissipation and a peak reverse power rating of 5 W. The ZS4746A is RoHS compliant and can operate in temperatures ranging from -55 to +150°C. It features a low 7.5V typical breakdown voltage, low 0.15O typical dynamic impedance and has a 10O typical junction capacitance. This makes it ideal for applications that require protection from over-voltage and electrostatic discharge, such as in automotive, industrial, telecom, and consumer markets.