MMSZ5242B-AU_R1_000A1

Single Zener Diodes Overview

The MMSZ5242B-AU_R1_000A1 is a surface mount silicon Zener diode from the Panjit MMSZ5221B-AU series, designed for automated assembly. It features planar die construction and operates within a junction temperature range of -55°C to +150°C. The device provides a nominal Zener voltage of 12V with a tolerance of ±5%, dissipating up to 500mW of power. Key electrical characteristics include a maximum Zener impedance of 30Ω at 20mA and a maximum reverse leakage current of 1μA at 9.1V.

Single Zener Diodes Feature Summary

• Planar die construction ensures stable performance in automated assembly processes.
• Qualified under AEC-Q101 standards for automotive reliability requirements.
• Manufactured using halogen-free green molding compound compliant with IEC61249 standards.

Single Zener Diodes Applications

• Voltage regulation in automotive electronic circuits
• General purpose clamping applications
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific part number against official Panjit documentation to confirm the exact voltage rating and package type. Ensure compliance with RoHS directives and check for AEC-Q101 qualification status if used in automotive contexts. Confirm packing information matches project requirements, as reels are available in standard quantities.

Single Zener Diodes Selection Notes

Select this component when a 12V Zener reference is required in a compact SOD-123 footprint. Consider the 500mW power dissipation limit and thermal resistance values for PCB layout planning. Verify that the operating temperature range meets the environmental conditions of the target application.

Single Zener Diodes Part Context

This component belongs to the MMSZ5221B-AU series, which covers Zener voltages from 2.4V to 51V. All devices in this series share identical mechanical dimensions and packaging options, differing primarily in their electrical voltage specifications and marking codes.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 12V nominal voltage, SOD-123 package, and 500mW power rating. Verify equivalent Zener impedance and leakage current specifications to ensure circuit compatibility.

Single Zener Diodes FAQ

What is the marking code for the MMSZ5242B-AU?

The marking code for this device is H2.

Is this component suitable for high-temperature environments?

Yes, the device supports an operating junction temperature range from -55°C to +150°C.