MMBZ5256B-TP

Single Zener Diodes Overview

The MMBZ5256B-TP is a surface-mount silicon Zener diode manufactured by Micro Commercial Components. It provides a nominal Zener voltage of 30 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -55°C to +150°C and features a maximum power dissipation of 350 mW. Electrical characteristics include a test current (IZT) of 4.2 mA, a maximum Zener impedance (ZZT) of 49 Ω at IZT, and a maximum reverse leakage current (IR) of 0.1 µA at VR = 23 V. The component utilizes an SOT-23 package.

Single Zener Diodes Feature Summary

• Halogen-free "Green" device construction
• ESD protection up to 16 kV (HBM)
• Moisture Sensitivity Level 1 classification
• Epoxy meets UL 94 V-0 flammability rating

Single Zener Diodes Applications

• Voltage regulation in low-power circuits
• Protection against electrostatic discharge events
• Reference voltage generation in portable electronics

Single Zener Diodes Procurement Notes

Verify the authenticity of the MMBZ5256B-TP by purchasing directly from Micro Commercial Components or their authorized distributors. Counterfeit components pose significant risks; unauthorized sources do not provide warranty coverage or quality guarantees. Ensure the ordering suffix matches the required packaging configuration before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component for applications requiring a precise 30 V reference in compact designs. The SOT-23 package facilitates automated assembly processes. Consider the thermal resistance and derating curves when designing for high ambient temperatures to ensure reliable operation within the specified junction temperature limits.

Single Zener Diodes Part Context

This part belongs to the MMBZ5221B through MMBZ5259B series, which covers Zener voltages from 2.4 V to 39 V. All devices in this series share identical physical dimensions and electrical testing conditions, differing primarily in their specific breakdown voltage ratings and associated impedance values.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' MMBZ5256B variants. Verify that substitute parts match the 30 V nominal voltage, ±5% tolerance, and SOT-23 footprint to ensure mechanical and electrical compatibility without circuit redesign.