LLZ5235B

Single Zener Diodes Overview

The LLZ5235B is a single silicon Zener diode manufactured by Taiwan Semiconductor Corporation. It features a nominal Zener voltage of 6.8 V with a tolerance of ±5%. The device is rated for a maximum 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 3 µA, a Zener impedance of 5 Ohms, and a test current of 20 mA. The component utilizes the MMELF-2 surface-mount package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a nominal 6.8 V level
• Supports high-temperature operation up to 200 °C junction temperature
• Utilizes compact MMELF-2 surface-mount packaging for automated assembly

Single Zener Diodes Applications

• Voltage reference circuits requiring high thermal stability
• Over-voltage protection in surface-mount designs
• Clamping applications in consumer electronics

Single Zener Diodes Procurement Notes

Verify the specific suffix or revision code when sourcing, as manufacturers may update part numbers without changing functionality. Confirm RoHS compliance status directly with the supplier, as documentation indicates transitional periods for certain manufacturing lines. Ensure the MMELF-2 footprint matches the design layout before procurement.

Single Zener Diodes Selection Notes

Select this component for applications demanding a 6.8 V regulation point with a 500 mW power rating. The wide operating temperature range makes it suitable for harsh environments. Compare the 5 Ohm impedance against circuit requirements to ensure adequate regulation performance under varying load conditions.

Single Zener Diodes Part Context

This part belongs to the LLZ5235 series of small-signal Zener diodes from Taiwan Semiconductor. It is designed for general-purpose voltage regulation tasks where space constraints favor surface-mount technology over through-hole alternatives like the DO-204AH variants.

Single Zener Diodes Replacement Considerations

Equivalent parts include MMSZ5235BHE3-TP (MCC) and MMBZ5235B (onsemi). Note that these substitutes differ in package type (SOD-123 or SOT-23-3) and require PCB layout adjustments.