BZM55B11-TR3

Single Zener Diodes Overview

The BZM55B11-TR3 is a single silicon Zener diode from Vishay, housed in a hermetically sealed MicroMELF (SOD-80) surface-mount package. It features a nominal Zener voltage of 11 V with a tight ±2% tolerance and a maximum power dissipation of 500 mW. The device operates within a junction temperature range of -65 °C to +175 °C and exhibits low reverse leakage current of less than 0.1 µA at 2 V. Electrical testing is conducted at a test current of 5 mA, ensuring high stability and sharp reverse characteristics suitable for precision applications.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction providing environmental protection
• High electrical stability with very sharp reverse characteristic
• Low noise operation and minimal reverse leakage current
• Compact footprint compatible with SOD-323 mounting patterns

Single Zener Diodes Applications

• Voltage stabilization
• Reference voltage generation
• Overvoltage protection circuits

Single Zener Diodes Procurement Notes

Verify the specific ordering code suffix against the manufacturer's official documentation to confirm reel specifications and tape dimensions. Ensure that the procurement channel sources directly from authorized distributors or the manufacturer to guarantee component authenticity and traceability. Cross-reference the part number with the latest datasheet revision to validate any potential updates to mechanical or electrical parameters before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in space-constrained designs. The MicroMELF package allows for automated surface-mount assembly while maintaining hermetic sealing. Consider the thermal resistance and power derating curves if operating near the maximum junction temperature limits. Verify that the circuit requirements align with the specified test currents and dynamic resistance values for optimal performance.

Single Zener Diodes Part Context

This component belongs to the BZM55 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of nominal voltages from 2.4 V to 75 V, all sharing identical electrical data with the legacy BZT55 and TZM series devices. The BZM55B11 variant specifically provides an 11 V reference point with enhanced tolerance accuracy compared to standard commercial grades.

Single Zener Diodes Replacement Considerations

Direct replacements include the BZT55B11 and TZM55B11 series diodes, which share identical electrical characteristics. Alternative packages such as SOD-80 variants from other manufacturers may be considered if pin compatibility and hermetic sealing requirements are met.