MMSZ5V1T1

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 and operates within a temperature range of -55°C to +150°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 3 V and a dynamic impedance of 18 Ω at a test current of 49 mA. The component is AEC-Q101 qualified and PPAP capable, ensuring suitability for automotive environments.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation protection in compact surface-mount designs
• Engineered for high-density printed circuit board assembly with optimized package geometry
• Offers robust electrostatic discharge immunity rated Class 3 per Human Body Model

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in sensitive electronic subsystems
• Clamping applications in automotive-grade electronic control units

Single Zener Diodes Procurement Notes

Verify the specific suffix against official documentation, as variations such as T1G or ET1 may indicate differences in packaging format or compliance status. Confirm that the procurement source provides valid traceability data and authentic manufacturer markings. Ensure the received components match the specified SOD-123 footprint and pin configuration to prevent assembly errors during automated placement processes.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V regulation point is required in space-constrained surface-mount layouts. The 500 mW power rating allows for moderate current handling without excessive thermal management. Consider the tight tolerance and low leakage characteristics for precision analog interfaces. Verify compatibility with automated pick-and-place equipment due to the small outline dimensions of the SOD-123 case style.

Single Zener Diodes Part Context

This device belongs to the MMSZ series of Zener voltage regulators from onsemi, which utilizes the SOD-123 plastic surface-mount package. The series offers a wide range of breakdown voltages from 2.4 V to 110 V, providing designers with flexible options for various regulation needs. The SOD-123 form factor serves as a convenient alternative to leadless packages while maintaining high reliability and performance standards for general-purpose and automotive electronics.

Single Zener Diodes Replacement Considerations

Cross-reference with other MMSZ series variants for different voltage ratings or tolerance levels. Verify mechanical compatibility with existing PCB footprints before substituting with similar SOD-123 Zener diodes from other manufacturers.