BZG03C18-HM3-08

Single Zener Diodes Overview

The BZG03C18-HM3-08 is a single Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 18 V with a tolerance of ±5.56%. The device is rated for a maximum power dissipation of 1.25 W and utilizes the DO-214AC (SMA) surface-mount package. Key electrical characteristics include a maximum reverse leakage current of 1 µA at 13 V and a forward voltage of 1.2 V at 500 mA. The component supports a junction temperature up to 150°C and holds AEC-Q101 qualification for automotive applications.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• High thermal stability supporting junction temperatures up to 150°C
• Compact surface-mount design in the DO-214AC (SMA) package

Single Zener Diodes Applications

• Voltage regulation in automotive electronic circuits
• Protection against over-voltage transients in vehicle systems
• Reference voltage generation in automotive sensor interfaces

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration, as variations such as HM3_A-08 or M3 variants exist within the same family. Confirm current availability status, as some related part numbers are marked as obsolete. Ensure the selected variant matches the required packaging format and that the component meets the necessary automotive qualification standards for the intended application environment.

Single Zener Diodes Selection Notes

Select this component when a stable 18 V reference is required in space-constrained automotive designs. The DO-214AC package offers a balance between power handling and board space efficiency. Consider the ±5.56% tolerance for precision requirements and ensure the circuit can handle the specified leakage currents at operating voltages below the Zener threshold.

Single Zener Diodes Part Context

This component belongs to the BZG03C-M series of single Zener diodes from Vishay. The series provides various voltage options in the SMA package, catering to general-purpose and automotive electronics. The BZG03C18-HM3-08 specifically addresses the need for robust voltage clamping in environments requiring high thermal performance and automotive certification.

Single Zener Diodes Replacement Considerations

Direct parameter-equivalent substitutes include BZG03C18-HM3_A-08, BZG03C18-M3_A-08, and BZG03C18-M3_A-18. These alternatives share identical electrical specifications and package dimensions, allowing for pin-compatible replacement without circuit redesign.