MMSZ5256B-E3-08

Vishay MMSZ5256B surface-mount Zener diode in a SOD-123 package. Nominal Zener voltage is 30 V at 4.2 mA with ±5% tolerance. Maximum dynamic resistance is 49 Ω at 4.2 mA. Maximum reverse leakage is 0.1 µA at 23 V. Maximum power dissipation at 25 °C is 500 mW at 250 K/W junction-to-lead thermal resistance, or 300 mW on FR-4 with Vishay’s recommended solder footprint. Operating temperature is −55 to +150 °C. Supplied on a 3,000-piece reel.