1N4744A-TP

Overview

The MCC 1N4744A-TP is a silicon planar zener diode housed in a hermetic DO-41G glass package. It provides a nominal zener voltage of 15 V with a 5% tolerance, dissipating up to 1.0 W at 50°C ambient temperature. The device features a maximum reverse leakage current of 5 µA at 11.4 V and a dynamic impedance of 14 Ω at the test current of 17 mA. Operating temperatures range from -65°C to +200°C.

Feature Summary

• Hermetic glass package construction for environmental stability
• Silicon planar technology for reliable voltage 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. Confirm that the component meets required thermal derating guidelines for capacitive loads. Ensure sourcing channels are authorized to guarantee traceability and authenticity.

Selection Notes

Select this component when a 15 V regulated output is required within a through-hole glass package. Consider the 14 Ω dynamic impedance for noise-sensitive applications. Verify that the 1.0 W power dissipation rating aligns with the thermal management capabilities of the target circuit design.

Part Context

This part belongs to the 1N4728 through 1N4761 series of 1.0 Watt Zener Diodes manufactured by Micro Commercial Components. The series covers a voltage range from 3.3 V to 75 V, utilizing standard DO-41G axial-leaded packages for general electronic applications.

Replacement Considerations

Cross-reference with other manufacturers offering the JEDEC 1N4744A specification in the DO-41 package. Ensure equivalent electrical parameters, specifically the 15 V zener voltage and 1.0 W power rating, are maintained during substitution.