MMBZ5246B

Single Zener Diodes Overview

The MMBZ5246B is a single-channel silicon Zener diode manufactured by Fairchild Semiconductor. It features a nominal Zener voltage of 16V with a tolerance of 5%. The device is designed for surface mount installation in an SOT-23 package, providing three pins. It supports a maximum power dissipation of 350mW at 25°C ambient temperature. Key electrical characteristics include a test current of 7.8mA, a maximum reverse leakage current of 100nA, and a Zener impedance of 17Ω. The component operates within a junction temperature range up to +150°C.

Single Zener Diodes Feature Summary

• Planar die construction for reliable performance
• Ideally suited for automated assembly processes
• Ultra-small surface mount package design

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the manufacturer origin carefully, as Fairchild's semiconductor division was acquired by onsemi. Ensure the specific lot date code aligns with current production standards. Confirm RoHS compliance status through the supplier's official documentation. Check for any obsolescence notices or lifecycle changes associated with the legacy Fairchild branding versus the current onsemi part numbering.

Single Zener Diodes Selection Notes

Select this component when a compact SOT-23 footprint is required for low-power voltage regulation. The 16V rating suits applications needing precise clamping near that potential. Consider the 350mW thermal limit for power handling requirements. Verify pinout compatibility if replacing existing designs, noting the standard SOT-23 configuration.

Single Zener Diodes Part Context

This device belongs to the MMBZ5246 series of surface mount Zener diodes. It shares similar electrical specifications with other parts in the family but differs in physical packaging. The SOT-23 form factor distinguishes it from larger axial or SOD-123 variants like the MMSZ5246B, offering higher density for PCB layouts.

Single Zener Diodes Replacement Considerations

Direct substitutes include the onsemi MMBZ5246B, which maintains identical electrical parameters and pinout. Other manufacturers such as Diodes Incorporated offer equivalent SOT-23 Zener diodes with matching 16V ratings.