1N4747A-TP

Overview

The MCC 1N4747A-TP is a silicon planar Zener diode housed in a DO-41 glass axial package. It provides a nominal voltage of 20 V with a 5% tolerance and a maximum power dissipation of 1 W at 50°C ambient temperature. The device features a maximum reverse leakage current of 5 µA, a dynamic impedance of 22 Ω, and a forward voltage drop of 1.2 V. Operating temperatures range from -65°C to +200°C.

Feature Summary

• Hermetic glass passivation for environmental protection
• Silicon planar construction for stable regulation
• Lead-free finish compliant with RoHS directives

Applications

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

Procurement Notes

Verify the specific suffix against official documentation to confirm compliance status and packaging type. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability. Confirm that the lead-free designation matches the required regulatory standards for the target application.

Selection Notes

Select this component when a 20 V regulation point is required within a through-hole design. The DO-41 package accommodates standard board layouts. Verify thermal derating requirements if operating above 50°C ambient conditions. Ensure the 5% tolerance aligns with circuit precision needs.

Part Context

This part belongs to the 1N47xx series of high-power Zener diodes manufactured by Micro Commercial Components. The series covers a wide voltage range from 3.3 V to 75 V. The 'A' suffix indicates a 5% voltage tolerance, distinguishing it from standard or tighter tolerance variants.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4747A specification in a DO-41 package. Verify matching electrical parameters such as 20 V nominal voltage, 1 W power rating, and 22 Ω impedance before substitution.