1N4757AHR1G

Single Zener Diodes Overview

The 1N4757AHR1G is a single silicon Zener diode manufactured by Taiwan Semiconductor, designed for voltage regulation and clipping applications. It features a nominal Zener voltage of 51 V with a tight 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 characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 95 Ohms at a test current of 5 mA. It is qualified under AEC-Q101 standards and functions within an operating temperature range from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a 5% tolerance on the 51 V Zener voltage.
• Qualified for automotive electronics applications under the AEC-Q101 standard.
• Engineered for high thermal stability with a maximum junction temperature rating of 150 °C.

Single Zener Diodes Applications

• Voltage regulation in automotive electronic control units
• Clipping circuits requiring stable reference voltages
• Protection circuits in automotive-grade power supplies

Single Zener Diodes Procurement Notes

Verify component authenticity and lot traceability directly with Taiwan Semiconductor or authorized distributors before procurement. Confirm that the specific batch meets AEC-Q101 qualification requirements for your application. Ensure the DO-41 package dimensions align with your PCB layout constraints. Request the official datasheet and reliability reports to validate performance specifications against your design criteria.

Single Zener Diodes Selection Notes

Select this component when a 51 V regulated voltage is required with tighter than standard tolerance. The AEC-Q101 qualification makes it suitable for automotive environments where reliability is critical. Compare the 95 Ohm impedance and 5 µA leakage against circuit sensitivity requirements. Ensure the 1 W power rating accommodates the expected thermal load in the target application environment.

Single Zener Diodes Part Context

This part belongs to the 1N4757AH series of glass-passivated silicon Zener diodes. It utilizes the standard JEDEC DO-41 axial leaded package, facilitating easy integration into through-hole manufacturing processes. The suffix 'R1G' indicates reel packaging and RoHS compliance, distinguishing it from bulk or non-compliant variants within the same family.

Single Zener Diodes Replacement Considerations

Substitutes must match the 51 V Zener voltage, 1 W power rating, and DO-41 package. Verify that alternative parts meet AEC-Q101 automotive qualification if used in automotive contexts. Check for equivalent impedance and leakage current specifications to ensure circuit compatibility.