CD4108

Single Zener Diodes Overview

The CD4108 is a single silicon Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 14 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and operates within a temperature range of -65 °C to +175 °C. Key electrical parameters include a maximum reverse leakage current of 50 nA, a Zener impedance of 200 Ω, and a test current of 250 µA. The component is supplied as an uncased die in a DIE-2 package configuration.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at 14 V with high-temperature capability up to 175 °C
• Utilizes silicon construction for reliable unidirectional operation
• Designed for surface mount integration via uncased die packaging

Single Zener Diodes Applications

• Voltage reference circuits requiring high thermal stability
• Over-voltage protection in semiconductor assemblies
• Biasing networks in high-temperature electronic systems

Single Zener Diodes Procurement Notes

Verify the specific manufacturing source, as the CD4108 designation appears associated with both Microchip Technology and legacy entities like Micrel or Microsemi. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability varies. Ensure the received component matches the required DIE-2 package specifications and electrical tolerances before integration into production designs.

Single Zener Diodes Selection Notes

Select this component when a 14 V Zener reference is needed in a compact form factor suitable for die-level integration. Consider the 500 mW power rating and 200 Ω impedance for circuit design constraints. Verify that the operating environment stays within the specified -65 °C to +175 °C range. Compare against other 1N4108 variants if through-hole mounting is preferred instead of surface mount die solutions.

Single Zener Diodes Part Context

The CD4108 belongs to the family of discrete Zener diodes produced by Microchip Technology, often acquired through the absorption of companies like Micrel and Microsemi. It serves as a specialized voltage regulator component distinct from standard axial-lead packages like the 1N4108-1. The die format allows for direct attachment to substrates or hybrid circuits, offering space savings compared to traditional encapsulated diodes.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Microchip cross-reference guides or datasheets for equivalent devices with matching 14 V Zener voltage, 500 mW power rating, and compatible package configurations.