1N4756AHR1G

Overview

The Taiwan Semiconductor 1N4756AHR1G is a single-channel Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 47 V with a tolerance of ±5%. The device operates in a DO-41 (DO-204AL) through-hole package and supports a maximum power dissipation of 1 W. Key electrical parameters include a test current of 5.5 mA, a maximum reverse leakage current of 5 µA, and a maximum Zener impedance of 80 Ω. It is qualified under the AEC-Q101 standard and functions within an operating temperature range of -55°C to +150°C.

Feature Summary

• Provides stable voltage regulation at a nominal 47 V output level.
• Complies with AEC-Q101 automotive qualification standards.
• Utilizes a DO-41 through-hole package for reliable mounting.

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Clipping and clamping applications

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number 1N4756AHR1G with official Taiwan Semiconductor documentation. Confirm that the specific suffix HR1G corresponds to the reel packaging format and AEC-Q101 qualification status as documented in the datasheet. Ensure compatibility with required thermal and electrical specifications before procurement.

Selection Notes

Select this component when a 47 V regulation point is required in through-hole designs. The AEC-Q101 qualification makes it suitable for automotive environments. Compare the 80 Ω impedance and 5 µA leakage against circuit requirements to ensure adequate performance. Verify that the 1 W power rating aligns with the expected thermal load in the application.

Part Context

This component belongs to the 1N47xxAH series of Zener diodes manufactured by Taiwan Semiconductor. The series offers various voltage ratings within the same DO-41 package family. The 'HR1G' suffix typically indicates specific packaging and compliance attributes defined by the manufacturer for this particular variant.

Replacement Considerations

Direct substitutes include the 1N4756A from onsemi and Vishay Semiconductors. Verify that replacement parts match the 47 V nominal voltage, 1 W power rating, and DO-41 package dimensions. Check if alternative sources meet the AEC-Q101 automotive qualification requirement if applicable.