MMSZ5258C-HE3_A-18

Single Zener Diodes Overview

The MMSZ5258C-HE3_A-18 is a silicon planar Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides a nominal Zener voltage of 36 V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 500 mW and operates within a junction temperature range of -55 °C to +150 °C. It features an AEC-Q101 qualification, ensuring compliance with automotive reliability standards. The component utilizes a surface-mount SOD-123 package and meets RoHS requirements.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• Tight Zener voltage tolerance of ±2%
• RoHS-compliant construction
• ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)

Single Zener Diodes Applications

• Voltage reference circuits in automotive electronics
• Overvoltage protection in vehicle systems
• Clamping applications in automotive-grade equipment

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix against official documentation to confirm the exact packaging format and reel specifications. Ensure that the required tolerance level matches the application's design constraints before procurement. Confirm that the component's AEC-Q101 qualification status aligns with the target system's automotive grade requirements.

Single Zener Diodes Selection Notes

Select this component when a precise 36 V reference or clamp is needed in space-constrained designs. The SOD-123 package offers a compact footprint suitable for high-density PCB layouts. The ±2% tolerance makes it appropriate for applications requiring tighter voltage regulation than standard commercial grades provide.

Single Zener Diodes Part Context

This part belongs to the MMSZ52xx series of small signal Zener diodes from Vishay Semiconductors. The series covers a wide range of nominal voltages from 3.0 V to 75 V. The 'C' suffix indicates the tighter ±2% tolerance variant, while the 'HE3_A' designation confirms its automotive qualification and lead-free composition.

Single Zener Diodes Replacement Considerations

MMSZ5258B-G3-08

Single Zener Diodes FAQ

What is the ESD protection rating of the MMSZ5258C-HE3_A-18?

According to AEC-Q101 standards, the device offers Human Body Model (HBM) protection greater than 8 kV and Machine Model (MM) protection greater than 800 V.

How does the thermal resistance affect power dissipation?

The thermal resistance junction-to-lead (RthJL) is specified at 250 K/W. On an FR-4 board with the recommended soldering footprint, the maximum power dissipation is reduced to 300 mW compared to the standard 500 mW rating.