1N4756AH

Overview

The Taiwan Semiconductor 1N4756AH is a single-channel voltage regulator Zener diode with a nominal voltage of 47 V and a maximum power dissipation of 1 W. It features a 5% tolerance, 80 Ω impedance, and 5 μA reverse leakage current. The device operates within a temperature range of -65°C to +200°C and utilizes a DO-41 through-hole package.

Feature Summary

• Hermetically sealed glass construction for environmental stability
• Double slug type metallurgically bonded design
• Oxide passivated die for enhanced reliability

Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Procurement Notes

Verify the specific suffix AH against official datasheets to confirm AEC-Q101 automotive qualification status. Ensure the selected packaging matches production requirements, as reel or cut tape options may differ from bulk availability. Cross-reference manufacturer part numbers to avoid confusion with non-qualified variants.

Selection Notes

Select this component when high thermal stability and hermetic sealing are required for critical applications. The DO-41 package supports through-hole mounting, suitable for robust circuit board designs. Confirm that the 47 V breakdown voltage aligns with system specifications before integration.

Part Context

This component belongs to the 1N47xxA series of silicon planar Zener diodes manufactured by Taiwan Semiconductor. It shares mechanical characteristics with other devices in the group, including double slug construction and corrosion-resistant leads. The series covers a wide voltage range from 3.3 to 100 volts.

Replacement Considerations

Equivalent parts include Vishay Semiconductors 1N4756A-TR and onsemi 1N4756A. Verify pinout compatibility and ensure replacement devices meet the same 1 W power dissipation and 47 V nominal voltage ratings.