1N5374B-TP

Overview

The MCC 1N5374B-TP is a 5-watt silicon unidirectional Zener diode housed in the DO-15 axial leaded package. It provides a nominal Zener voltage of 75V with a ±5% tolerance, tested at 20mA. Key electrical parameters include a maximum dynamic impedance of 45Ω and a maximum reverse leakage current of 0.5µA at 56V. The device supports a maximum regulator current of 63mA and can withstand a surge current of 1.6A. It operates within a junction temperature range of -55°C to +200°C.

Feature Summary

• Provides stable voltage regulation for circuits requiring high power dissipation up to 5 watts.
• Features low reverse leakage current suitable for precision reference applications.
• Capable of handling significant non-recurrent surge currents for transient protection.

Applications

• High-power voltage regulation in industrial equipment
• Overvoltage protection circuits
• Reference voltage sources

Procurement Notes

Verify the specific suffix (e.g., -TP) matches the required packaging format such as tape and reel or bulk. Confirm compliance requirements like RoHS status directly from the manufacturer's documentation. Ensure the ordering code aligns with the desired halogen-free options if applicable. Cross-reference the datasheet revision date to ensure the latest thermal and electrical specifications are utilized during design validation.

Selection Notes

Select this component when a robust 5-watt Zener diode is needed for higher voltage regulation tasks. The DO-15 package offers superior heat dissipation compared to smaller surface-mount alternatives. Consider the 45Ω dynamic impedance and 0.5µA leakage limits against circuit sensitivity requirements. Verify that the 75V breakdown voltage aligns with the system's operating margins and surge protection needs.

Part Context

This part belongs to the 1N5338B through 1N5388B series manufactured by Micro Commercial Components. The series covers a wide voltage range from 5.1V to 200V, all sharing the same 5-watt power rating and DO-15 axial package form factor. This standardization simplifies inventory management for designs utilizing multiple voltage levels within the same power class.

Replacement Considerations

Compatible replacements include the onsemi 1N5374BG and EIC 1N5374A. These parts share the 75V nominal voltage, 5W power rating, and DO-15 package. Verify pinout compatibility and ensure thermal resistance characteristics match the original design constraints before substitution.

FAQ

What is the maximum operating junction temperature?

The maximum operating junction temperature is 200°C, although DC conditions are limited to 150°C.

How is the cathode identified on the component?

The cathode end is denoted by a color band on the body of the diode.