MMSZ5V1T1G

Single Zener Diodes Overview

The MMSZ5V1T1G is a Zener voltage regulator diode manufactured by onsemi, designed for surface mount applications in the SOD-123 package. It features a nominal Zener voltage of 5.1 V with a standard tolerance of 5%. The device supports a steady-state power dissipation rating of 500 mW when mounted on FR-4 or FR-5 circuit boards. Electrical characteristics include a maximum reverse leakage current of 1 µA and a Zener impedance of 18 Ω at a test current of 5 mA. The component operates within a temperature range of -55 °C to +150 °C and meets AEC-Q101 qualification standards.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a 500 mW power rating suitable for high-density board assembly.
• Features an ESD protection rating of Class 3 (> 16 kV) per the Human Body Model.
• Designed for automated surface mount processing with a compact SOD-123 plastic package.

Single Zener Diodes Applications

• Voltage regulation and protection in cellular phones
• Protection circuits in hand-held portable devices
• Voltage reference applications in high density PC boards

Single Zener Diodes Procurement Notes

Verify that the specific order code matches the required Zener voltage and tolerance specifications. Confirm compliance with RoHS directives and lead-free packaging requirements. Ensure the procurement channel sources from authorized distributors to guarantee authenticity and traceability. Check for any automotive-specific suffixes if AEC-Q101 qualification is strictly required for the target application environment.

Single Zener Diodes Selection Notes

Select this component for designs requiring a 5.1 V reference in a small form factor. The SOD-123 package offers a convenient alternative to leadless styles while maintaining robust thermal performance. Consider the 5% voltage tolerance and 500 mW power dissipation limits when designing the surrounding circuitry. Verify that the operating temperature range aligns with the environmental conditions of the final product.

Single Zener Diodes Part Context

This part belongs to the MMSZ5xxxT1G series of Zener voltage regulators from onsemi. The series provides a wide range of breakdown voltages from 2.4 V to 56 V in the same SOD-123 surface mount package. These devices are engineered to offer space-saving solutions for modern electronics without compromising on reliability or electrical performance.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other 5.1 V Zener diodes in the SOD-123 package with similar 500 mW power ratings and 5% tolerance. Verify pinout compatibility and thermal characteristics before substitution. Cross-reference with equivalent parts from other manufacturers ensuring identical electrical parameters and package dimensions.