1N4761AHR1G

Overview

The 1N4761AHR1G is a single silicon Zener diode manufactured by Taiwan Semiconductor. It provides a nominal Zener voltage of 75 V with a tolerance of 5%. The device is rated for a power dissipation of 1 W and operates within a temperature range of -55°C to +150°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 175 Ohms at a test current of 3.3 mA. It utilizes a DO-41-2 axial through-hole package and holds AEC-Q101 qualification.

Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• High thermal stability with extended operating temperature range up to 150°C
• Low leakage current for precise voltage regulation
• Robust mechanical design with built-in strain relief in the DO-41 package

Applications

• Automotive voltage regulation circuits
• Overvoltage protection systems
• Reference voltage sources in industrial electronics

Procurement Notes

Verify component authenticity and lot traceability directly with Taiwan Semiconductor or authorized distributors. Confirm AEC-Q101 certification status and RoHS compliance documentation prior to integration. Ensure storage conditions maintain lead solderability and prevent moisture ingress, as specified in the manufacturer's handling guidelines.

Selection Notes

Select this component when a 75 V regulated reference is required in high-reliability environments. The DO-41 package suits through-hole PCB layouts. Consider the 175 Ohm impedance for dynamic load applications. Verify that the 1 W power rating accommodates the expected thermal dissipation under worst-case operating conditions without exceeding junction temperature limits.

Part Context

This part belongs to the 1N4761AH series of axial leaded Zener diodes. It shares the standard JEDEC designation 1N4761A but includes specific suffixes indicating automotive qualification (A) and tape-and-reel packaging (R1G). The series covers a wide voltage range, positioning this 75 V variant for mid-range regulation tasks.

Replacement Considerations

Cross-reference with other manufacturers' 1N4761A parts for pin-compatible substitution. Verify that alternative sources meet the same AEC-Q101 automotive grade requirements and match the 75 V ±5% voltage tolerance specifications.