The MM3Z4V3C is a Zener diode specifically engineered for voltage regulation. It features a nominal Zener voltage of 4.3 V at a test current of 5 mA, with a standard tolerance of ±5%. Key electrical characteristics include a maximum Zener impedance of 84 Ω at 5 mA and a low reverse leakage current of 2.7 μA at a reverse voltage of 1 V. With a power dissipation rating of 200 mW and housed in a compact SOD-323F package, this device is well-suited for space-constrained applications requiring stable voltage references.