1N4743A-TP

Overview

The MCC 1N4743A-TP is a silicon planar Zener diode housed in a DO-41G glass package. It provides a nominal Zener voltage of 13 V with a 5% tolerance at a test current of 19 mA. The device supports a maximum DC power dissipation of 1.0 W and operates within a temperature range of -65°C to +200°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 9.9 V, a dynamic impedance of 10 Ohms, and a forward voltage drop of 1.2 V at 200 mA.

Feature Summary

• Utilizes a hermetic glass package for robust environmental protection
• Features silicon planar construction for stable voltage regulation
• Includes lead-free finish compliant with RoHS directives

Applications

• Voltage reference circuits
• Overvoltage protection systems
• DC power supply regulation

Procurement Notes

Verify the specific suffix designation against official documentation to confirm packaging type and compliance status. Confirm that the component meets required quality standards for the intended application environment. Ensure sourcing from authorized distributors to guarantee authenticity and traceability. Check for any specific handling or storage requirements outlined in the manufacturer's data sheet.

Selection Notes

Select this component when a 13 V regulated voltage point is required in through-hole designs. Consider the 1.0 W power rating and thermal resistance characteristics for heat management. Evaluate the operating temperature range limits against the system's environmental conditions. Verify compatibility with existing circuit layouts utilizing the DO-41G package dimensions.

Part Context

This part belongs to the 1N4743 series of single Zener diodes manufactured by Micro Commercial Components. It is designed for general-purpose voltage regulation tasks requiring high reliability. The DO-41G package offers axial lead configuration suitable for standard PCB mounting techniques. The product line emphasizes durability and consistent electrical performance across varying temperatures.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4743A specifications in DO-41 packages. Ensure equivalent Zener voltage, power dissipation, and tolerance ratings are maintained. Verify package dimensional compatibility before substitution.