Product Summary

The MMSZ5257BT1 is a 500 mW Surface Mount zener voltage regulator. The device is offered in the convenient, surface mount plastic SOD-123 package. The MMSZ5257BT1 provides a convenient alternative to the leadless 34 package style.

Parametrics

MMSZ5257BT1 absolute maximum ratings: (1)Total Power Dissipation on FR-5 Board,PD: 500mW at TL = 75℃; 6.7mW/℃ at Derated above 75℃; (2)Thermal Resistance, Junction-to-Ambient, RθJA: 340℃/W; (3)Thermal Resistance, Junction-to-Lead, RθJL: 150℃/W; (4)Junction and Storage Temperature Range, TJ, Tstg: -55 to +150℃.

Features

MMSZ5257BT1 features: (1)500 mW Rating on FR-4 or FR-5 Board; (2)Wide Zener Reverse Voltage Range: 2.4 V to 110 V; (3)Package Designed for Optimal Automated Board Assembly; (4)Small Package Size for High Density Applications; (5)General Purpose, Medium Current; (6)ESD Rating of Class 3 (>16 kV) per Human Body Model; (7)Pb-Free Packages are Available.

Diagrams

MMSZ5257BT1 circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MMSZ5257BT1
MMSZ5257BT1

ON Semiconductor

Zener Diodes 33V 500mW

Data Sheet

Negotiable 
MMSZ5257BT1G
MMSZ5257BT1G

ON Semiconductor

Zener Diodes 33V 500mW

Data Sheet

0-1: $0.16
1-25: $0.11
25-100: $0.08
100-500: $0.04