MMSZ5254B-AQ

Single Zener Diodes Overview

The MMSZ5254B-AQ is a surface-mount planar Zener diode manufactured by Diotec Semiconductor in the SOD-123F package. It provides a nominal Zener voltage of 27 V with a standard tolerance of ±5%. The device dissipates up to 500 mW and operates within a junction temperature range of -50°C to +150°C. Key electrical characteristics include a dynamic resistance of less than 41 Ohms, a reverse leakage current under 600 nA at 25 V, and a test current of 21 mA.

Single Zener Diodes Feature Summary

• Sharp Zener voltage breakdown characteristic
• Low leakage current performance
• Low profile SMD construction
• AEC-Q101 qualified for automotive reliability

Single Zener Diodes Applications

• Voltage stabilization circuits
• Voltage regulators
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level. Confirm the component meets AEC-Q101 standards if automotive grade compliance is mandatory. Ensure the SOD-123F footprint aligns with the target PCB layout. Validate RoHS and REACH compliance against project specifications before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 27 V reference or regulation point is required in a compact surface-mount design. Consider the low leakage current and sharp breakdown curve for precision applications. Evaluate the thermal dissipation capabilities relative to the ambient operating conditions and copper pad area on the printed circuit board.

Single Zener Diodes Part Context

This part belongs to the MMSZ5227B through MMSZ5262B series of SMD Planar Zener Diodes. The series covers a wide voltage range from 3.6 V to 51 V. The -AQ suffix specifically denotes AEC-Q101 qualification, distinguishing it from standard commercial or industrial grade variants within the same product family.

Single Zener Diodes Replacement Considerations

MMSZ5254B

Single Zener Diodes FAQ

What does the -AQ suffix indicate for this component?

The -AQ suffix indicates that the MMSZ5254B-AQ is AEC-Q101 qualified, meeting specific automotive reliability standards.

What is the maximum power dissipation rating?

The maximum power dissipation (Ptot) is rated at 500 mW.