1N4756AGE3

Overview

The Microchip Technology 1N4756AGE3 is a single silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 47 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W and operates within an extended temperature range from -65°C to +175°C. Packaged in the DO-41 axial through-hole format, it exhibits a maximum Zener impedance of 80 Ω at a test current of 5.5 mA. The component ensures low reverse leakage current, specified at a maximum of 5 µA.

Feature Summary

• Hermetically sealed glass construction utilizing compression bonded technology for enhanced reliability
• Extended thermal performance capability supporting operation up to +175°C junction temperature
• Compliant with RoHS directives ensuring environmental safety standards

Applications

• Precision voltage reference circuits requiring stable regulation
• Overvoltage protection stages in electronic systems
• General-purpose voltage clamping and regulation tasks

Procurement Notes

Verify the specific suffix 'E3' confirms lead-free plating compliance when sourcing. Confirm the package type matches the required DO-41 axial form factor for the target PCB layout. Ensure the manufacturer designation aligns with Microchip Technology specifications to guarantee parameter accuracy. Cross-reference datasheet revisions to confirm electrical characteristics remain consistent with design requirements.

Selection Notes

Select this component where a robust 47 V regulation point is necessary under high thermal stress conditions. The DO-41 package facilitates easy manual or automated through-hole assembly. Consider the 1 W power rating for thermal management needs in dense circuitry. Verify that the 80 Ω impedance meets the noise and stability requirements of the specific application environment.

Part Context

This part belongs to the standard 1N47xx series of Zener diodes, widely utilized for fundamental voltage regulation. The 1N4756 variant specifically targets the 47 V segment of this extensive lineup. Manufactured by Microchip Technology, it represents a legacy component adapted for modern manufacturing processes while maintaining established electrical profiles for compatibility.

Replacement Considerations

Equivalent parts include the 1N4756A without the E3 suffix for non-rohs environments. Surface mount alternatives like the CDLL4756A offer similar electrical characteristics in a different package. Always verify pinout compatibility and thermal derating curves before substituting.