1N4732A-TP

Overview

The MCC 1N4732A-TP is a silicon planar Zener diode with a nominal voltage of 4.7 V and a 5% tolerance, housed in a DO-41G glass package. It dissipates 1.0 W at 50°C ambient temperature, featuring a maximum reverse leakage current of 10 µA at 1 V and a dynamic impedance of 8 Ω at the test current of 53 mA. The device operates from -65°C to +200°C, includes built-in strain relief, and utilizes a hermetic glass construction compliant with RoHS standards.

Feature Summary

• Hermetic glass package with built-in strain relief for mechanical stability
• Silicon planar technology ensuring high stability and low inductance
• Lead-free finish and RoHS compliance

Applications

• DC power supply voltage regulation
• Overvoltage protection circuits
• Voltage reference applications

Procurement Notes

Verify authenticity by purchasing directly from Micro Commercial Components or authorized distributors to avoid counterfeit parts. Confirm the 'P' suffix indicates RoHS compliance and lead-free status. Ensure the component meets specific thermal derating requirements if operating above 100°C ambient temperature.

Selection Notes

Select this component when a 4.7 V regulated voltage is required in through-hole designs. The DO-41G package accommodates standard PCB layouts. Consider the 5% voltage tolerance and 8 Ω dynamic impedance for precision circuit requirements. Verify that the 1.0 W power dissipation rating aligns with the expected thermal environment.

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 wide voltage range from 3.3 V to 75 V, providing standardized options for various voltage regulation needs within the same physical package and electrical characteristic profile.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4732A specifications in the DO-41 package. Ensure replacement parts match the 4.7 V nominal voltage, 5% tolerance, and 1.0 W power dissipation ratings.

FAQ

What does the 'A' suffix indicate regarding voltage tolerance?

The 'A' suffix designates a 5% tolerance on the nominal Zener voltage.

How is the Zener impedance measured?

It is derived from the 60 Hz AC voltage resulting when an AC current equal to 10% of the DC Zener current is superimposed on the DC current.