1N4733AW-TP

Overview

The MCC 1N4733AW-TP is a silicon planar power Zener diode housed in the SOD-123 surface-mount package. It provides a nominal Zener voltage of 5.1 V with a tolerance of ±5%. The device supports a maximum DC power dissipation of 1 W and operates within a temperature range of -55°C to +150°C. Key electrical characteristics include a maximum reverse leakage current of 10 µA at 1 V, a dynamic impedance of 7 Ω at the test current of 49 mA, and a forward voltage drop of 1.2 V at 200 mA.

Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Features a low-profile surface-mount SOD-123 package design
• Includes hermetic glass sealing for environmental protection

Applications

• DC power supply voltage regulation
• Protection against overvoltage conditions
• Reference voltage generation in electronic circuits

Procurement Notes

Verify the specific suffix configuration when ordering, as the standard part number includes the -TP designation for tape-and-reel packaging. Confirm compliance requirements such as RoHS status directly with the manufacturer or authorized distributors. Ensure that procurement channels are authorized to guarantee genuine components and full traceability, avoiding unauthorized sources that may compromise product integrity.

Selection Notes

Select this component for applications requiring a compact surface-mount solution with a precise 5.1 V reference point. The SOD-123 form factor is suitable for space-constrained PCB layouts. Evaluate the thermal resistance and derating curves if operating near the maximum power dissipation limit. Consider the ±5% voltage tolerance to ensure it aligns with the circuit's required accuracy specifications.

Part Context

This component belongs to the 1N4729AW through 1N4761AW series manufactured by Micro Commercial Components. The series covers a wide range of Zener voltages from 3.6 V to 75 V, all sharing similar physical dimensions and electrical testing standards. The AW suffix indicates the specific SOD-123 surface-mount package variant within the broader 1N47xx family.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4733 variants in the SOD-123 package. Verify that replacement parts match the 5.1 V nominal voltage, 1 W power rating, and ±5% tolerance. Ensure the alternative component supports the same operating temperature range and has compatible pinout configurations for direct board replacement.

FAQ

What is the maximum operating junction temperature for the 1N4733AW-TP?

The maximum operating temperature for the 1N4733AW-TP is +150°C.

How is the Zener impedance measured for this device?

The Zener impedance is derived from the 60 Hz AC voltage resulting when an AC current with an RMS value equal to 10% of the DC Zener current is superimposed on the DC current.