MMSZ5259B-HE3-18

Single Zener Diodes Overview

The MMSZ5259B-HE3-18 is a silicon planar Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides a nominal Zener voltage of 39 V with a standard tolerance of ±5%. The device operates within a power dissipation range up to 500 mW and features a maximum dynamic resistance of 80 Ohms at the test current of 3.2 mA. It is housed in an SOD-123 surface-mount package, suitable for automated assembly processes.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Provides standard ±5% Zener voltage tolerance
• Features low leakage current characteristics
• Designed for high-reliability applications

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection stages
• Clamping applications in signal processing

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and AEC-Q101 qualification requirements against specific project needs. Ensure proper handling procedures are followed during storage and assembly to maintain device integrity and performance specifications.

Single Zener Diodes Selection Notes

Select this component when a precise 39 V regulation point is required with tight tolerance constraints. Evaluate thermal management capabilities based on ambient temperature conditions and expected power dissipation levels. Consider package compatibility with existing PCB layouts and manufacturing equipment specifications.

Single Zener Diodes Part Context

This part belongs to the MMSZ5225 to MMSZ5267 series of small signal Zener diodes. The series offers a wide range of nominal voltages from 3.0 V to 75 V. Different suffixes indicate varying tolerance levels and automotive qualifications, allowing designers to choose components tailored to specific reliability and precision requirements across diverse electronic systems.

Single Zener Diodes Replacement Considerations

MMSZ5259B-E3-18

Single Zener Diodes FAQ

What is the typical reverse leakage current for this device?

The maximum reverse leakage current is specified as 0.1 µA at a reverse voltage of 30 V.

Does this component meet automotive standards?

No, the 'B' suffix indicates commercial grade; AEC-Q101 qualification requires the 'HE3_A' suffix variant.