MMSZ5256B-TP

Single Zener Diodes Overview

The MMSZ5256B-TP is a surface-mount Zener diode manufactured by Micro Commercial Components (MCC) in the SOD-123 package. It features a nominal Zener voltage of 30V with a ±5% tolerance and a maximum power dissipation of 500mW. The device operates within a junction temperature range of -65°C to +150°C and has a thermal resistance of 340°C/W. Electrical characteristics include a maximum reverse leakage current of 100µA at 23V, a Zener impedance of 49Ω at a test current of 4.2mA, and a forward voltage of 0.9V at 10mA.

Single Zener Diodes Feature Summary

• Utilizes planar die construction for reliable performance.
• Provides an ESD rating of 16kV per Human Body Model.
• Constructed as a halogen-free 'Green' device compliant with UL 94 V-0 flammability ratings.

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify that the ordering suffix '-TP' corresponds to the Tape & Reel packaging configuration containing 3,000 pieces per reel, as specified in the manufacturer's ordering information. Confirm compliance with RoHS standards and ensure the component meets the required moisture sensitivity level 1 classification for storage and handling procedures.

Single Zener Diodes Selection Notes

Select this component when a 30V Zener reference is required in a compact SOD-123 footprint. Ensure the application circuit limits power dissipation to 500mW and accounts for the 49Ω impedance at the 4.2mA test current. Verify that the operating environment stays within the specified -65°C to +150°C junction temperature range.

Single Zener Diodes Part Context

This part belongs to the MMSZ5221B through MMSZ5267B series from MCC, covering Zener voltages from 2.4V to 75V. All devices in this family share the same SOD-123 plastic package and 500mW power rating, differing primarily in their specific breakdown voltage and associated electrical parameters defined in the datasheet tables.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 30V Zener diodes in the SOD-123 package with 500mW power ratings. Verify that substitute parts match the 49Ω impedance and 100µA leakage specifications to maintain circuit performance equivalence.

Single Zener Diodes FAQ

What does the suffix '-TP' indicate for this part number?

The suffix '-TP' designates that the device is supplied in Tape & Reel packaging, specifically containing 3,000 pieces per reel.

How is the Zener impedance defined for this component?

The Zener impedance is derived from the 60-cycle AC voltage resulting when an AC current with an RMS value equal to 10% of the DC Zener current is superimposed on the DC Zener current.