1N4740AGE3/TR

Overview

The Microchip Technology 1N4740AGE3/TR is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 10 V with a tolerance of ±5%. The device operates in the DO-41 axial through-hole package and dissipates up to 1 W of power. Key electrical parameters include a maximum reverse leakage current of 10 µA, a Zener impedance of 7 Ohms at a test current of 25 mA, and a forward voltage of 1.2 V. It supports an operating temperature range from -65 °C to +175 °C.

Feature Summary

• Provides stable voltage regulation within a wide industrial temperature range
• Utilizes a rugged DO-41 axial leaded package for reliable through-hole mounting
• Offers tight voltage tolerance for precision circuit requirements

Applications

• General-purpose voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog signal processing

Procurement Notes

Verify the specific suffix 'AG' against official Microchip documentation to confirm RoHS compliance status and manufacturing origin. Ensure the reel quantity matches system assembly requirements. Confirm that the DO-41 package dimensions align with the target PCB footprint before finalizing procurement orders.

Selection Notes

Select this component when a 10 V regulation point is required with high thermal stability. The 1 N power rating allows for robust operation in moderate current environments. Verify that the 7 Ohm impedance meets the noise and regulation specifications of the target application compared to lower impedance alternatives.

Part Context

This part belongs to the standard 1N47 series of 1 Watt Zener diodes manufactured by Microchip Technology. The 'E3' suffix indicates lead-free construction compliant with environmental directives. The 'TR' designation specifies tape and reel packaging suitable for automated surface or through-hole insertion processes.

Replacement Considerations

Direct substitutes include the 1N4740AE3 (bulk pack) and 1N4740A (standard non-compliant version). Cross-manufacturer equivalents such as onsemi 1N4740ATR share identical electrical characteristics but require verification of package tolerances.