1N4748AGE3

Overview

The Microchip Technology 1N4748AGE3 is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 22 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, a Zener impedance of 23 Ohms at the test current of 11.5 mA, and a forward voltage of 1.2 V at 200 mA. It utilizes a DO-41 axial through-hole package.

Feature Summary

• Provides stable voltage regulation in a rugged glass-encapsulated axial package suitable for high-reliability environments.
• Capable of operating at elevated junction temperatures up to 175°C, ensuring performance under thermal stress.
• Features low reverse leakage current for efficient standby operation and minimal power loss.

Applications

• Voltage reference circuits requiring precise 22 V regulation.
• Overvoltage protection stages in industrial control systems.
• Clamping applications in analog signal processing paths.

Procurement Notes

Verify RoHS compliance status directly with the manufacturer or authorized distributor, as suffix variations may affect regulatory classification. Confirm the specific package variant (DO-41) matches your PCB footprint requirements. Ensure the ordering part number includes the correct suffix to guarantee the intended material composition and testing standards are met for your application.

Selection Notes

Select this component when a 22 V regulation point is required with high thermal stability. The 1 W power rating allows for significant current handling compared to lower-power variants. Consider the axial leaded format for manual assembly or through-hole mounting constraints where surface-mount alternatives are not feasible.

Part Context

This device belongs to the standard 1N47xx series of 1-watt Zener diodes manufactured by Microchip Technology. The 'AGE3' suffix typically denotes a specific packaging and environmental compliance configuration within the company's discrete semiconductor portfolio, distinguishing it from non-compliant or alternative package versions.

Replacement Considerations

Compatible substitutes include the 1N4748AG and 1N4748A/TR. Verify that replacement parts maintain the same 22 V nominal voltage, 1 W power rating, and DO-41 package dimensions to ensure mechanical and electrical compatibility without circuit redesign.