SZMMSZ5270BT1G

Single Zener Diodes Overview

The SZMMSZ5270BT1G is a single Zener voltage regulator diode from onsemi, housed in an SOD-123 surface-mount package. It provides a nominal reverse Zener voltage of 91 V with a ±5% tolerance and a maximum power dissipation of 500 mW. The device operates within a junction temperature range of -55°C to +150°C. Key electrical characteristics include a test current (IZT) of 1.4 mA, a maximum Zener impedance (ZZT) of 400 Ω at the test current, and a maximum reverse leakage current (IR) of 100 nA at a reverse voltage of 69 V.

Single Zener Diodes Feature Summary

• SZ prefix designates automotive qualification under AEC-Q101 standards with PPAP capability for unique site and control change requirements.
• SOD-123 plastic package optimized for automated board assembly and high-density applications.
• ESD protection rated at Class 3 (>16 kV) per the human body model.
• Lead-free construction compliant with RoHS directives.

Single Zener Diodes Applications

• Automotive electronic circuits requiring specific supply chain controls.
• Voltage regulation in high-density printed circuit boards.
• General-purpose medium current applications.

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'SZ' is explicitly required to ensure compliance with AEC-Q101 automotive qualification and PPAP documentation standards. Confirm that the standard MMSZ5270BT1G variant does not meet the specific site or control change requirements of your project before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 91 V regulation point is needed in a compact SMD form factor. Ensure the application supports the 500 mW thermal rating on FR-4 or FR-5 substrates. Verify that the 400 Ω dynamic impedance meets the noise and stability requirements of the target circuit design.

Single Zener Diodes Part Context

This part belongs to the MMSZ52xxxT1G series of 500 mW Zener diodes. The SZ prefix specifically identifies devices manufactured to satisfy automotive quality standards and production part approval process requirements, distinguishing them from general industrial counterparts.

Single Zener Diodes Replacement Considerations

The MMSZ5270BT1G serves as the non-automotive equivalent. Substitution requires confirming that AEC-Q101 qualification and PPAP documentation are not mandatory for the end application.

Single Zener Diodes FAQ

What is the maximum Zener impedance specified for this device?

The maximum Zener impedance (ZZT) is 400 Ω, measured at a test current (IZT) of 1.4 mA.

Does the SZ prefix affect the electrical performance compared to the standard version?

No, the SZ prefix indicates automotive qualification and manufacturing site controls; the electrical parameters remain identical to the standard MMSZ5270BT1G.