MMSZ5231C-TP

Single Zener Diodes Overview

The MMSZ5231C-TP is a 500 mW Zener diode manufactured by Micro Commercial Components (MCC) in an SOD-123 surface-mount package. It provides a nominal Zener voltage of 5.1 V with a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within a junction temperature range of -65°C to +150°C and features a thermal resistance of 340°C/W from junction to ambient. Electrical characteristics include a maximum dynamic impedance of 17 Ω at a test current of 20 mA, a reverse leakage current of 5.0 µA at 2.0 V, and an ESD rating of 16 kV per the Human Body Model.

Single Zener Diodes Feature Summary

• Utilizes planar die construction for robust voltage regulation performance.
• Offers high electrostatic discharge protection rated at 16 kV via the Human Body Model.
• Constructed as a halogen-free "Green" device compliant with environmental standards.
• Features epoxy encapsulation that meets UL 94 V-0 flammability ratings.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels.
• Overvoltage protection stages in electronic systems.
• Clamping applications for transient voltage suppression.

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration, as the datasheet distinguishes between Tape & Reel quantities of 3,000 pieces and 10,000 pieces. Ensure compliance requirements match project specifications, specifically checking RoHS status and Halogen-free definitions. Confirm authenticity through authorized MCC distributors to guarantee traceability and adherence to quality standards for handling and storage.

Single Zener Diodes Selection Notes

Select this component when a precise 5.1 V regulation point is required with tighter than standard tolerance limits. The SOD-123 package is suitable for space-constrained printed circuit board layouts. Consider the 500 mW power dissipation capability and the specified thermal resistance when designing heat management strategies for the application environment.

Single Zener Diodes Part Context

This part belongs to the MMSZ5221B(29C) THRU MMSZ5267B(61C) series, which covers a wide range of Zener voltages from 2.4 V to 75 V. The 'C' suffix denotes a ±2% voltage tolerance, distinguishing it from the standard 'B' suffix parts which offer ±5% tolerance. All devices in this family share identical physical dimensions and electrical testing conditions defined in the manufacturer's documentation.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same MCC series include other MMSZ52xxC variants for different voltage requirements. Cross-manufacturer replacements must match the SOD-123 footprint, 500 mW power rating, and 5.1 V nominal voltage with comparable ±2% tolerance and impedance characteristics.

Single Zener Diodes FAQ

What does the 'C' suffix indicate in the MMSZ5231C-TP part number?

The 'C' suffix designates a Zener voltage tolerance of ±2%, which is tighter than the standard ±5% tolerance found in parts with the 'B' suffix.

How is the Zener voltage measured for this component?

The Zener voltage is guaranteed when measured at 90 seconds while maintaining the lead temperature at 25°C from the diode body.