1N4749AGE3

Overview

The Microchip Technology 1N4749AGE3 is a single silicon Zener diode housed in the DO-41 axial leaded package. It provides a nominal Zener voltage of 24 V with a tolerance of ±5%. The device dissipates up to 1 W of power and operates within a temperature range of -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 25 Ohms, and a test current of 10.5 mA.

Feature Summary

• Provides stable voltage regulation at a nominal 24 V reference level
• Features hermetically sealed glass passivation for environmental protection
• Supports high thermal stability across an extended operating temperature range

Applications

• Voltage reference circuits requiring precise 24 V levels
• Overvoltage protection stages in electronic systems
• Clamping applications for transient suppression

Procurement Notes

Verify the specific suffix 'E3' confirms RoHS compliance status as per official datasheets. Confirm the package type matches the required DO-41 axial footprint. Ensure the 24 V rating aligns with circuit design requirements before procurement.

Selection Notes

Select this component when a robust 1 W axial Zener diode is needed for 24 V regulation. Consider the ±5% tolerance and 25 Ohm impedance for precision requirements. Verify that the DO-41 package fits the board layout constraints.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes manufactured by Microchip Technology. It shares the DO-41 package form factor with other variants in the series but is distinguished by its specific 24 V breakdown voltage and associated electrical parameters.

Replacement Considerations

Compatible substitutes include the 1N4749A or 1N4749AG from various manufacturers, provided they meet the 24 V, 1 W, and DO-41 specifications. Ensure equivalent Zener impedance and leakage current ratings are maintained.