MMBZ5249B-HE3-08

Single Zener Diodes Overview

The MMBZ5249B-HE3-08 is a single Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 19V and a maximum power dissipation of 225mW. The device is housed in an SOT-23-3 surface-mount package. It complies with RoHS standards and is lead-free. The component belongs to the Automotive series and holds AEC-Q101 qualification.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• RoHS compliant and lead-free construction
• Single Zener diode configuration

Single Zener Diodes Applications

• Automotive circuit protection
• Voltage reference circuits
• General purpose clamping

Single Zener Diodes Procurement Notes

Verify current manufacturing status as sources indicate this part may be obsolete. Confirm availability of parametric equivalents such as CMPZ5249B if direct supply is unavailable. Ensure the replacement meets the original electrical specifications and package requirements for seamless integration into existing designs.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 19V Zener voltage in a compact SOT-23-3 footprint. The AEC-Q101 qualification makes it suitable for automotive environments. Consider the 225mW power rating when designing thermal management solutions for the circuit.

Single Zener Diodes Part Context

This component is part of Vishay's Zener diode portfolio, specifically designed for surface-mount applications. It falls under the broader category of circuit protection devices offered by the Diodes Division. The HE3 suffix indicates a specific packaging or processing variant within the product line.

Single Zener Diodes Replacement Considerations

CMPZ5249B is listed as a parametric equivalent substitute.