MM5Z43V

Single Zener Diodes Overview

The MM5Z43V is a single Zener diode manufactured by onsemi, designed for voltage regulation and protection in surface-mount applications. It features a nominal Zener voltage of 43 V with a standard tolerance of ±5%. The device operates within a steady-state power rating of 500 mW and is housed in an SOD-523 package (Case 502). Key electrical parameters include a maximum reverse leakage current of 100 nA and a Zener impedance of 25 Ohms at the test current of 5 mA. It supports an operating temperature range from -65°C to +150°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in compact surface-mount designs
• Offers high ESD protection capability rated at Class 3 (>16 kV)
• Features low profile body dimensions suitable for space-constrained PCBs

Single Zener Diodes Applications

• Cellular phones and mobile communication devices
• Handheld portable electronic equipment
• High-density printed circuit boards requiring small footprints

Single Zener Diodes Procurement Notes

Verify the specific suffix against official datasheets to confirm exact tolerance and packaging configurations. Ensure compatibility with SOD-523 footprint requirements during design integration. Confirm RoHS compliance status through manufacturer documentation prior to procurement.

Single Zener Diodes Selection Notes

Select this component when a 43 V reference is required in minimal space. The 500 mW rating suits moderate current applications. Verify thermal management needs for high ambient temperatures given the wide operating range. Compare leakage specifications against circuit sensitivity requirements.

Single Zener Diodes Part Context

This part belongs to the MM5Z series of Zener voltage regulators from onsemi. The series is characterized by its small SOD-523 package and robust ESD performance. It serves as a discrete solution for overvoltage protection and voltage referencing in consumer electronics where board real estate is limited.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering SOD-523 packaged Zener diodes with 43 V nominal voltage and similar power ratings. Verify pinout compatibility and thermal characteristics before substitution.