MMSZ5231BHE3-TP

Single Zener Diodes Overview

The MMSZ5231BHE3-TP is a single Zener diode manufactured by Micro Commercial Components (MCC). It features a nominal Zener voltage of 5.1 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW and operates within a junction temperature range of -55°C to +150°C. Packaged in an SOD-123 surface-mount case, it exhibits a maximum reverse leakage current of 5 µA at 2 V and a Zener impedance of 17 Ohms. The component holds AEC-Q101 qualification for automotive applications and complies with RoHS standards.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• Surface-mount SOD-123 package design for compact PCB integration
• Low reverse leakage current specification for efficient standby operation
• Halogen-free construction compliant with environmental regulations

Single Zener Diodes Applications

• Voltage reference circuits in automotive electronics
• Clamping and protection stages in vehicle control modules
• General-purpose regulation in industrial surface-mount assemblies

Single Zener Diodes Procurement Notes

Verify the complete part number including the HE3 suffix to confirm AEC-Q101 automotive qualification status. Ensure the ordering code matches the specific tape-and-reel or cut-tape packaging format required for automated assembly lines. Cross-reference manufacturer documentation to confirm compliance with current RoHS directives and halogen-free material declarations before final procurement approval.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V regulation point is required in space-constrained designs utilizing the SOD-123 footprint. The AEC-Q101 certification makes it suitable for automotive environments where thermal stability up to 150°C junction temperature is critical. Compare the 500 mW power rating against circuit load requirements to ensure adequate thermal headroom during continuous operation.

Single Zener Diodes Part Context

This device belongs to the MMSZ5231 series of Zener diodes produced by Micro Commercial Components. The HE3 suffix indicates the use of Green Plastic technology, which eliminates halogenated flame retardants. The standard MMSZ5231 designation refers to the base electrical characteristics, while the TP suffix typically denotes the specific packaging configuration provided by the manufacturer.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers include MMSZ5231B from Good-Ark Semiconductor and MMSZ5231B_R1_00001 from Panjit International Inc. These alternatives offer parameter-equivalent performance for direct replacement in existing designs.