MMSZ5230B-HE3_A-18

Single Zener Diodes Overview

The MMSZ5230B-HE3_A-18 is a silicon planar Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides a nominal Zener voltage of 4.7 V with a standard tolerance of ±5%. The device operates within a test current range of 1.7 to 20 mA and features a maximum power dissipation of 500 mW at thermal equilibrium. It is housed in an SOD-123 surface-mount package, supports an operating temperature range from -55 °C to +150 °C, and carries AEC-Q101 qualification.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• ESD capability exceeding 8 kV via human body model
• RoHS-compliant construction

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific suffix HE3_A-18 to confirm AEC-Q101 qualification and tape-and-reel packaging format. Ensure the ordering code matches the required ±5% tolerance designation. Cross-reference datasheet document number 86344 for updated electrical characteristics and mechanical dimensions before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a 4.7 V reference with ±5% accuracy is required in space-constrained designs. The SOD-123 package offers a compact footprint suitable for high-density PCB layouts. Confirm that the 500 mW power dissipation rating aligns with the expected thermal environment and duty cycle of the target application circuit.

Single Zener Diodes Part Context

This part belongs to the MMSZ5225 to MMSZ5267 series of small signal Zener diodes. The series covers a broad Zener voltage range from 3.0 V to 75 V. The 'B' suffix indicates the standard ±5% voltage tolerance, while the 'HE3_A' suffix denotes RoHS compliance and automotive qualification.

Single Zener Diodes Replacement Considerations

MMSZ5230B-E3-18

Single Zener Diodes FAQ

What is the ESD protection rating for this component?

The device meets AEC-Q101 ESD requirements, offering greater than 8 kV protection according to the Human Body Model and greater than 800 V according to the Machine Model.

How does the suffix affect the component's function?

The suffix identifies the manufacturing attributes. 'B' specifies the ±5% Zener voltage tolerance, while 'HE3_A' confirms RoHS compliance and AEC-Q101 automotive qualification without altering the electrical performance.