SZMMSZ27T3G

Single Zener Diodes Overview

The SZMMSZ27T3G is a single Zener diode manufactured by onsemi, designed for surface-mount applications in the SOD-123 package. It features a nominal Zener voltage of 27 V with a power dissipation rating of 500 mW. The device offers a voltage tolerance of ±5% and operates within a temperature range of -55°C to +150°C. It is qualified under the AEC-Q100 standard for automotive reliability. Key electrical parameters include a maximum reverse leakage current of 10 µA at the test current of 50 µA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a 27 V nominal breakdown voltage.
• Automotive-grade qualification ensures reliability in harsh environments.
• Compact SOD-123 surface-mount package facilitates automated assembly.

Single Zener Diodes Applications

• Voltage reference circuits in automotive electronics
• General-purpose voltage regulation in consumer devices
• Overvoltage protection in low-power signal lines

Single Zener Diodes Procurement Notes

Verify the specific suffix 'T3G' confirms the tape-and-reel packaging format required for high-volume manufacturing processes. Confirm that the AEC-Q100 qualification aligns with your system's automotive reliability standards. Ensure the SOD-123 footprint matches your PCB design constraints. Cross-reference the manufacturer part number against official onsemi documentation to avoid counterfeit components.

Single Zener Diodes Selection Notes

Select this component when a precise 27 V reference is needed in a compact form factor. The 500 mW power rating suits low-current regulation tasks. Consider the ±5% tolerance for applications requiring moderate precision. The wide operating temperature range supports deployment in varying environmental conditions without derating concerns typical of lower-grade devices.

Single Zener Diodes Part Context

This part belongs to the MMSZ series of axial-leaded-to-surface-mount converted Zener diodes. The 'SZ' prefix typically denotes automotive-grade variants or specific regional manufacturing lines within onsemi's portfolio. It serves as a surface-mount alternative to traditional through-hole Zener diodes, maintaining similar electrical characteristics while enabling modern PCB assembly techniques.

Single Zener Diodes Replacement Considerations

Direct substitutes include MMSZ27T3G from onsemi, which shares identical electrical specifications and package dimensions. Other manufacturers may offer equivalent 27 V, 500 mW SOD-123 Zener diodes, but verification of pinout compatibility and thermal performance is essential before substitution.