1N4740AGE3

Overview

The Microchip Technology 1N4740AGE3 is a single 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 a DO-41-2 axial through-hole package and dissipates up to 1 W of power. Key electrical parameters include a maximum reverse leakage current of 10 uA, a Zener impedance of 7 Ohms, and a test current of 25 mA. It supports a forward current of 200 mA and functions within a temperature range of -65 C to +175 C.

Feature Summary

• Provides stable voltage regulation at a nominal 10 V level
• Capable of handling 1 W power dissipation in an axial leaded package
• Maintains low reverse leakage current for efficient operation

Applications

• Voltage reference circuits
• Overvoltage protection systems
• General-purpose voltage regulation

Procurement Notes

Verify the specific suffix 'E3' confirms RoHS compliance when sourcing from distributors. Confirm the manufacturer is Microchip Technology, as other vendors produce similar part numbers. Ensure the DO-41-2 package matches your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a precise 10 V reference is required with moderate power handling capabilities. The axial DO-41-2 package suits through-hole designs. Consider the 5% voltage tolerance and 7 Ohm impedance for circuit stability requirements compared to tighter tolerance alternatives.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes manufactured by Microchip Technology. It shares the same electrical characteristics as the non-E3 variant but includes environmental compliance markings. The series is widely used for basic voltage clamping and reference tasks in industrial electronics.

Replacement Considerations

The 1N4740A is the primary equivalent part number without the environmental suffix. Other manufacturers such as onsemi and Nexperia produce identical specifications under the same base model number.