1N4740ADO41E3

Overview

The 1N4740ADO41E3 is a silicon Zener diode manufactured by Microsemi Corporation. It features a nominal Zener voltage of 10 V with a tolerance of 5%. The device is rated for a power dissipation of 1 W and operates within a temperature range from -65 °C to +175 °C. It utilizes a DO-41 axial leaded package, classified as JEDEC code DO-204AL. The component is RoHS compliant, indicated by the E3 suffix, and is designed for unidirectional applications in through-hole mounting configurations.

Feature Summary

• Provides stable voltage regulation across a broad operating current range
• Features hermetic-sealed glass encapsulation for environmental protection
• Supports high-temperature operation suitable for demanding industrial environments

Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage sources

Procurement Notes

Verify that the specific part number matches the required voltage and tolerance specifications. Confirm RoHS compliance status if restricted substances are prohibited in the target application. Ensure the manufacturer designation aligns with Microchip Technology following the acquisition of Microsemi. Check datasheet revisions for any updates to electrical characteristics or packaging details before finalizing procurement orders.

Selection Notes

Select this component when a 10 V reference with 5% accuracy is required in an axial package. Consider the 1 W power rating for thermal management requirements. Choose the glass body variant over plastic if higher temperature resistance or hermetic sealing is necessary. Verify that the operating environment does not exceed the maximum junction temperature limits specified in the official documentation.

Part Context

This component belongs to the 1N47xx series of 1-watt Zener diodes produced by Microsemi. The series offers a wide selection of voltages ranging from 3.3 V to 100 V. The 'G' suffix typically denotes a glass body construction, while 'E3' indicates RoHS compliance. These devices are widely used in general-purpose electronics and industrial control systems requiring reliable voltage clamping.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4740A variants meeting the same electrical specifications. Cross-reference with Microchip's current product line for updated suffixes. Ensure substitute components maintain the DO-41 package dimensions and thermal performance characteristics.