1N4742AGE3/TR

Overview

The Microchip Technology 1N4742AGE3/TR is a single silicon Zener diode housed in an axial DO-41 package. It provides a nominal Zener voltage of 12 V with a 5% tolerance at a test current of 21 mA. The device dissipates up to 1 W and exhibits a maximum reverse leakage current of 1 uA and a Zener impedance of 9 Ohms. It operates within a temperature range of -65°C to +175°C and features a forward voltage of 1.2 V at 200 mA.

Feature Summary

• Provides stable voltage regulation using a glass encapsulated structure for hermetic sealing qualities.
• Supports high-temperature operation suitable for demanding environments.
• Offers low reverse leakage current characteristics.

Applications

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

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging, distinct from bulk variants like '1N4742AGe3'. Confirm RoHS compliance status via official datasheets as markings may vary. Ensure the supplier source aligns with Microchip Technology or authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when a 12 V reference is required in an axial through-hole format. The 1 W power rating supports moderate current applications. Verify that the 5% tolerance meets circuit precision requirements. Consider the operating temperature range if deployed in extreme thermal conditions.

Part Context

This part belongs to the 1N47xx series of 1-watt Zener diodes manufactured by Microchip Technology. The 'G' suffix denotes a glass body construction, while 'E3' indicates lead-free composition. The 'TR' suffix specifies reel packaging for automated assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires consulting official Microchip replacement guides or equivalent manufacturer specifications.