1N4767A

Overview

The Microchip Technology 1N4767A is a temperature-compensated Zener diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 9.1 V with a tight tolerance of ±5%. The device operates in the DO-204AH (DO-35) axial through-hole package and supports a maximum DC power dissipation of 500 mW at +50°C, with derating required above this threshold. It exhibits a low reverse leakage current of 10 µA at 25°C and maintains an extended operating temperature range from -65°C to +175°C. The component utilizes metallurgically bonded double plug construction to ensure stability.

Feature Summary

• Temperature compensated design for stable reference performance across wide thermal ranges
• Metallurgically bonded double plug construction for enhanced reliability
• Extended operating temperature capability suitable for harsh environments

Applications

• Precision voltage reference circuits requiring low temperature drift
• Overvoltage protection in sensitive electronic systems
• Voltage regulator designs utilizing low current ranges

Procurement Notes

Verify RoHS compliance status as the product may not meet current environmental directives. Confirm specific packaging requirements such as bulk or reel quantities during ordering. Ensure that the selected variant matches the exact voltage and tolerance specifications needed for the circuit design. Check for any recent PCN notifications regarding assembly site or label changes before finalizing procurement.

Selection Notes

Select this component when a stable 9.1 V reference is required with minimal temperature coefficient. Consider the 500 mW power rating and necessary derating factors for high-temperature operation. Verify that the axial leaded package fits the PCB layout constraints. Compare against other series members if different voltage levels are needed while maintaining similar compensation characteristics.

Part Context

This part belongs to the 1N4765 through 1N4774A series of temperature-compensated Zener reference diodes manufactured by Microchip Technology. These components are engineered for applications demanding high stability and low noise. The series covers various voltage points within the low current range, offering a standardized solution for precision analog circuits requiring reliable voltage references over extreme temperature variations.

Replacement Considerations

Direct substitutes include other 1N47xxA series parts from Microchip Technology with identical voltage ratings. Cross-manufacturer equivalents must match the 9.1 V nominal voltage, ±5% tolerance, and DO-35 package dimensions. Verify that alternative sources provide comparable temperature coefficients and leakage current specifications.