LLZ5222B

Single Zener Diodes Overview

The LLZ5222B is a single Zener diode manufactured by Taiwan Semiconductor, designed for surface mount applications in the MMELF package. It features a nominal Zener voltage of 2.5 V with a tolerance of 5%. The device supports a power dissipation of 500 mW and operates within a temperature range of -65 °C to +200 °C. Key electrical characteristics include a maximum reverse leakage current of 100 uA, a Zener impedance of 30 Ohms at a test current of 20 mA, and a forward voltage of 1.1 V.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction with compression bonded design for corrosion resistance
• Optimized for automated placement processes on high-density circuit boards
• Matte tin lead finish ensures readily solderable external surfaces

Single Zener Diodes Applications

• Voltage regulation in compact electronic circuits
• High density PC board designs requiring small form factors
• Automated surface mount assembly lines

Single Zener Diodes Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status and specific lot traceability before integration. Ensure storage conditions maintain the hermetic seal integrity. Check for obsolescence notices as availability may vary across supply chains.

Single Zener Diodes Selection Notes

Select this component when a low-profile, hermetically sealed Zener regulator is required for harsh environments. The wide operating temperature range up to 200 °C suits high-heat applications. Verify that the 500 mW power rating aligns with the circuit's thermal dissipation requirements and that the 2.5 V breakdown voltage matches the design specifications.

Single Zener Diodes Part Context

This part belongs to the LLZ52xxB series of small signal Zener diodes from Taiwan Semiconductor. These devices utilize the Mini MELF (DO-213AA) glass package, offering a robust alternative to plastic encapsulated diodes. The series provides various voltage options while maintaining consistent mechanical dimensions and performance characteristics suitable for industrial and commercial electronics.

Single Zener Diodes Replacement Considerations

Cross-reference with other Mini MELF Zener diodes rated at 2.5 V and 500 mW. Verify pinout compatibility and thermal resistance values. Ensure substitute components meet the same hermetic sealing standards if environmental protection is critical.