1N4752AH

Overview

The 1N4752AH is a single silicon Zener diode manufactured by Taiwan Semiconductor, designed for voltage regulation applications. It features a nominal Zener voltage of 33 V with a tolerance of 5%. The device is rated for a maximum power dissipation of 1 W and operates within an extended temperature range from -65 °C to +200 °C. It utilizes the DO-41 axial through-hole package and meets AEC-Q101 automotive qualification standards. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 50 Ω at a test current of 7 mA.

Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Extended high-temperature operation capability up to 200 °C
• Hermetically sealed glass passivation for corrosion resistance
• Compression bonded construction with strain relief

Applications

• Voltage reference circuits in automotive electronics
• Over-voltage protection in harsh environment systems
• Clamping applications in industrial control modules

Procurement Notes

Verify the specific suffix AH against the manufacturer's official datasheet to confirm AEC-Q101 compliance and the 200 °C operating limit. Ensure the procurement specification matches the required DO-41 package dimensions and lead finish requirements. Cross-reference the part number with authorized distributors to validate authenticity and traceability documentation.

Selection Notes

Select this component when automotive qualification and extreme thermal stability are required. The 33 V rating suits mid-range regulation tasks. Compare the 50 Ω impedance against circuit sensitivity requirements. Verify that the 1 W power rating accommodates peak dissipation scenarios without exceeding thermal limits in the final assembly.

Part Context

This part belongs to the 1N47xxA series of 1 Watt Zener diodes produced by Taiwan Semiconductor. The series offers a wide voltage range from 3.3 V to 56 V. The 1N4752AH variant specifically targets applications demanding robust performance in high-temperature environments, leveraging the company's glass passivation technology for long-term durability.

Replacement Considerations

Direct substitutes include the Vishay 1N4752A and onsemi 1N4752ATR. Verify that alternative sources meet the same AEC-Q101 automotive qualification and maintain the 200 °C maximum junction temperature rating.