1N4733A-TP

Overview

The MCC 1N4733A-TP is a silicon planar zener diode housed in a hermetic DO-41 glass package. It provides a nominal zener voltage of 5.1 V with a 5% tolerance, rated for 1.0 W power dissipation at 50°C ambient temperature. The device features a maximum reverse leakage current of 10 µA and a dynamic impedance of 7 Ω at the test current of 49 mA. Operating temperatures range from -65°C to +200°C.

Feature Summary

• Hermetic glass package construction
• Silicon planar technology
• Lead-free finish compliant with RoHS standards

Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Procurement Notes

Verify authenticity by purchasing directly from Micro Commercial Components or authorized distributors. Counterfeit parts are prevalent; unauthorized sources lack traceability and quality assurance. Confirm the 'P' suffix indicates RoHS compliance and check for manufacturer markings on the reel or box.

Selection Notes

Select this component for applications requiring a stable 5.1 V reference within a through-hole DO-41 package. Ensure thermal derating is applied above 100°C. Verify that the 5% voltage tolerance meets circuit requirements compared to standard 10% variants.

Part Context

This part belongs to the 1N4728 through 1N4761 series of 1.0 Watt zener diodes manufactured by Micro Commercial Components. The 'A' suffix denotes a 5% voltage tolerance, while the '-TP' suffix indicates tape and reel packaging containing 5,000 pieces per reel.

Replacement Considerations

Direct substitutes include 1N4733A from onsemi and Nexperia USA Inc., which share identical electrical specifications and DO-41 package dimensions.

FAQ

What does the 'A' suffix indicate?

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 IZT or IZK.