1N4931A

Overview

The Microchip Technology 1N4931A is a temperature-compensated Zener reference diode featuring a nominal voltage of 19.2 V with ±5% tolerance. It operates in a through-hole DO-204AH (DO-35) package and supports a power dissipation of 500 mW. The device utilizes metallurgically bonded double plug construction to ensure low noise performance and stable regulation across varying thermal conditions.

Feature Summary

• Temperature compensated design for stable voltage reference
• Low noise operation suitable for precision applications
• Metallurgically bonded double plug construction

Applications

• Precision voltage reference circuits
• Temperature compensation networks
• Low noise analog signal conditioning

Procurement Notes

Verify the specific manufacturer source, as components are listed under both Microchip Technology and Compensated Devices Incorporated. Confirm the package type matches DO-204AH (DO-35) requirements. Ensure the voltage tolerance aligns with the ±5% specification for your circuit design needs before finalizing procurement.

Selection Notes

Select this component when a stable, low-noise voltage reference is required in a through-hole configuration. The 19.2 V nominal rating suits specific biasing or regulation tasks. Consider the 500 mW power handling capability and the temperature compensation feature if operating in environments with significant thermal fluctuations.

Part Context

This part belongs to the single Zener diodes category, specifically designed as a temperature-compensated reference. It differs from standard Zener diodes by offering improved stability over temperature ranges. The DO-35 package provides a compact solution for through-hole mounting on printed circuit boards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs carefully if considering alternative manufacturers.