MMBZ5242B-E3-18

Single Zener Diodes Overview

The MMBZ5242B-E3-18 is a single Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 12 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 225 mW and operates within a temperature range of -55°C to +150°C. It utilizes an SOT-23-3 surface-mount package. Key electrical characteristics include a maximum reverse leakage current of 1 µA at 9.1 V and a maximum Zener impedance of 30 Ohms.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 12 V Zener breakdown.
• Designed for surface-mount assembly in compact SOT-23-3 packages.
• Capable of operating reliably across extended industrial temperature ranges.

Single Zener Diodes Applications

• Voltage reference circuits
• Over-voltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific automotive qualification markings if required for the application. Review official datasheets for any recent product change notices that may affect specifications or availability.

Single Zener Diodes Selection Notes

Select this component when a precise 12 V regulation point is needed in space-constrained designs. The SOT-23-3 footprint offers a compact solution compared to larger axial leads. Ensure the circuit design accounts for the 225 mW power limit and the specific leakage current characteristics at the intended operating voltage.

Single Zener Diodes Part Context

This part belongs to the MMBZ5242 series of small-signal Zener diodes from Vishay. It shares the same electrical profile as other variants in the family but is distinguished by its specific E3 lead-free designation and 18 reel packaging configuration. It serves as a standard discrete semiconductor solution for general-purpose voltage control tasks.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components based on matching voltage, power, and package specifications before implementation.

Single Zener Diodes FAQ

What is the maximum power dissipation rating?

The maximum power dissipation is 225 mW.

Does this component support automotive applications?

Yes, it is part of the Automotive series and meets AEC-Q101 standards.