1N4736AG/TR

Overview

The Microchip Technology 1N4736AG/TR is a single silicon unidirectional Zener diode rated for 6.8 V nominal voltage with a ±5% tolerance. It features a maximum power dissipation of 1 W and operates within a temperature range of -65 °C to +175 °C. The device utilizes a DO-41 axial through-hole package, measuring approximately 5.2 mm in length with a 2.6 mm diameter. Key electrical characteristics include a test current of 37 mA, a maximum reverse leakage current of 10 µA at 4 V, and a Zener impedance of 3.5 Ω.

Feature Summary

• Provides stable voltage regulation at a fixed 6.8 V reference level
• Capable of handling high thermal loads up to 175 °C junction temperature
• Constructed with robust silicon material for reliable unidirectional operation

Applications

• Voltage reference circuits requiring precise 6.8 V levels
• Overvoltage protection stages in electronic systems
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix AG/TR against the manufacturer's official documentation to confirm tape-and-reel packaging and lead-free compliance. Ensure the DO-41 package dimensions align with your PCB footprint requirements. Cross-reference the 1 W power rating and 6.8 V tolerance specifications with your circuit design constraints before finalizing procurement decisions.

Selection Notes

Select this component when a standard 6.8 V Zener reference is required in an axial through-hole configuration. The DO-41 package offers mechanical stability for manual or automated insertion. Consider the 1 W power rating for applications involving moderate current loads. Verify that the 3.5 Ω impedance meets the noise and regulation requirements of the target application.

Part Context

This part belongs to the widely recognized 1N47 series of Zener diodes, standardized for general-purpose voltage regulation. The AG/TR designation indicates a specific manufacturing variant from Microchip Technology, typically denoting tape-and-reel packaging for surface mount or automated assembly processes. It serves as a direct replacement for legacy components in existing designs requiring this specific voltage and package type.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4736A variants in DO-41 packages. Ensure equivalent 6.8 V tolerance and 1 W power ratings are maintained. Verify pinout compatibility and thermal performance characteristics match the original design specifications.