BZG04-12-HM3-08

Single Zener Diodes Overview

The BZG04-12-HM3-08 is a single Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 15 V and a maximum power dissipation of 1.25 W. The device utilizes a DO-214AC (SMA) surface-mount package. Key electrical specifications include a forward voltage of 1.2 V at 500 mA and a reverse leakage current of 5 µA at 12 V. It operates within a junction temperature range up to 150°C and holds AEC-Q101 automotive qualification.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Surface-mount construction in compact DO-214AC (SMA) housing
• High thermal stability with a maximum junction temperature of 150°C

Single Zener Diodes Applications

• Voltage regulation in automotive electronic circuits
• Transient voltage suppression in vehicle systems
• Reference voltage provision in automotive sensor interfaces

Single Zener Diodes Procurement Notes

This component is officially obsolete and no longer in production. Verification of availability requires checking for manufacturer-recommended substitutes, such as the BZG04-12-HM3_A-18 variant. Procurement should focus on confirming lead times and compatibility for replacement parts rather than sourcing the original discontinued item directly from standard channels.

Single Zener Diodes Selection Notes

Designers requiring this specific 15 V Zener characteristic must evaluate alternative components due to the part's end-of-life status. Selection criteria should prioritize matching the 1.25 W power rating, DO-214AC footprint, and AEC-Q101 automotive qualification to ensure functional equivalence in existing designs without redesigning the PCB layout.

Single Zener Diodes Part Context

The BZG04-12-HM3-08 belongs to the BZG04-M series of single Zener diodes from Vishay. This series is engineered for robust performance in demanding environments, specifically targeting automotive applications that require high reliability and thermal resilience. The component represents a specialized segment of Vishay's discrete semiconductor portfolio focused on voltage control and protection.

Single Zener Diodes Replacement Considerations

The manufacturer recommends BZG04-12-HM3_A-18 as a direct substitute. Engineers should verify pinout compatibility and electrical parameter alignment before integrating the replacement into active designs.