1N4754AH

Overview

The 1N4754AH is a single silicon Zener diode manufactured by Taiwan Semiconductor, designed for voltage regulation applications. It features a nominal Zener voltage of 39 V with a 5% tolerance at a test current of 6.5 mA. The device dissipates up to 1 W of power and exhibits a maximum reverse leakage current of 5 uA and a Zener impedance of 60 Ohms. It operates within a temperature range of -55°C to +150°C and is housed in the DO-41-2 through-hole package.

Feature Summary

• Provides stable voltage regulation with a nominal 39 V output.
• Capable of handling 1 W power dissipation in a robust plastic encapsulated case.
• Engineered for automotive environments with AEC-Q101 qualification.

Applications

• Automotive electronic circuits requiring qualified components
• General-purpose voltage regulation tasks
• Protection against overvoltage conditions

Procurement Notes

Verify the specific suffix AH indicates AEC-Q101 automotive qualification when sourcing from distributors. Confirm the manufacturer is Taiwan Semiconductor to ensure compliance with the specified electrical parameters and package dimensions. Check for RoHS compliance status as required by your assembly standards.

Selection Notes

Select this component when a 39 V regulation point is needed in a through-hole configuration. The AEC-Q101 rating makes it suitable for automotive systems where standard commercial parts may not suffice. Ensure the circuit design accommodates the 60 Ohm impedance and 1 W thermal limits under expected operating conditions.

Part Context

This part belongs to the 1N47xxA series of 1 Watt Zener diodes produced by Taiwan Semiconductor. The 'AH' suffix specifically denotes automotive-grade reliability and qualification according to AEC-Q101 standards, distinguishing it from standard commercial variants within the same voltage family.

Replacement Considerations

Cross-reference other manufacturers offering 1N4754A equivalents with an automotive qualification suffix. Verify that substitute parts meet the 39 V nominal voltage, 1 W power rating, and DO-41 package footprint requirements.