1N4749AHB0G

Overview

The 1N4749AHB0G is a single Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation applications. It features a nominal Zener voltage of 24 V with a tolerance of ±5%. The device operates in an axial DO-41 package and dissipates up to 1 W of power. Key electrical characteristics include a maximum reverse leakage current of 100 nA, a Zener impedance of 25 Ohms, and a test current of 10.5 mA. It supports a wide operating temperature range from -65 °C to +175 °C junction temperature.

Feature Summary

• Hermetically sealed glass passivation for enhanced reliability
• High thermal stability supporting extended temperature ranges
• Low leakage current characteristics for precision regulation

Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Procurement Notes

Verify the specific suffix HB0G against official Taiwan Semiconductor documentation to confirm compliance with AEC-Q101 automotive qualification standards and RoHS directives. Ensure the ordering information matches the exact package type and termination finish required for your assembly process before finalizing procurement.

Selection Notes

Select this component when a robust 24 V regulation point is needed in high-reliability environments. The DO-41 axial package facilitates through-hole mounting, while the wide temperature range suits demanding industrial conditions. Confirm that the 1 W power dissipation rating aligns with the thermal management capabilities of the target design.

Part Context

This part belongs to the 1N4749 series of silicon Zener diodes produced by Taiwan Semiconductor. The series is characterized by its use in general-purpose voltage regulation tasks. The specific model integrates standard industry parameters within a durable glass-passivated package suitable for various electronic assemblies.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4749 variants in DO-41 packages. Verify pinout compatibility and ensure equivalent Zener voltage and power ratings are maintained during substitution.