CDLL4764A

Single Zener Diodes Overview

The CDLL4764A is a single Zener diode manufactured by Microchip Technology, designed for surface mount applications in the DO-213AB (MELF) package. It features a nominal Zener voltage of 100 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within an extended temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA at 76 V and a maximum Zener impedance of 350 ohms. The forward voltage is specified as 1.2 V at a forward current of 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at 100 V with tight manufacturing tolerances.
• Utilizes a hermetically sealed glass MELF package suitable for harsh environments.
• Capable of handling high thermal loads with a 1 W power dissipation rating.
• Engineered for reliable operation across extreme industrial temperature ranges.

Single Zener Diodes Applications

• Precision voltage reference circuits requiring high stability.
• Overvoltage protection stages in sensitive electronic systems.
• Clamping applications in high-reliability industrial equipment.
• Temperature compensated regulator designs.

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix and packaging configuration when sourcing, as availability may vary between bulk and reel formats. Confirm that the component meets the required RoHS compliance status for your assembly process. Ensure the supplier provides valid traceability documentation consistent with Microchip Technology standards. Cross-reference the manufacturer part number against official distributor catalogs to avoid counterfeit components.

Single Zener Diodes Selection Notes

Select this component when a 100 V regulation point is required in a compact surface mount form factor. The DO-213AB package offers superior thermal performance compared to standard plastic packages. Consider the low leakage current specifications for high-impedance circuit designs. Evaluate the extended temperature range suitability for aerospace or automotive under-hood applications where reliability is critical.

Single Zener Diodes Part Context

This device belongs to the CDLL47xx series of 1-watt Zener diodes produced by Microchip Technology. The series utilizes metallurgically bonded double plug construction within a leadless glass body. This construction method ensures hermetic sealing and enhanced durability compared to conventional plastic encapsulated alternatives. The product line is designed to replace older through-hole JEDEC equivalents in modern PCB layouts.

Single Zener Diodes Replacement Considerations

Direct replacements include other Microchip CDLL4764 variants with different tolerance suffixes if tighter voltage accuracy is needed. Equivalent parts from other manufacturers must match the 100 V Zener voltage, 1 W power rating, and DO-213AB footprint. Verify pinout compatibility and thermal resistance characteristics before substitution.