1N4745AHB0G

Overview

The 1N4745AHB0G is a single silicon Zener diode manufactured by Taiwan Semiconductor Corporation. It features a nominal Zener voltage of 16 V with a tolerance of ±5%. The device is designed for through-hole mounting in a DO-204AL (DO-41) axial leaded package. It supports a maximum 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 16 Ω at a test current of 15.5 mA. The component holds AEC-Q101 qualification.

Feature Summary

• Provides stable voltage regulation with low dynamic impedance for noise-sensitive circuits
• Constructed with hermetically sealed glass encapsulation for environmental durability
• Qualified for automotive applications under the AEC-Q101 standard

Applications

• Automotive electronic circuit protection
• Voltage reference sources in precision measurement equipment
• Overvoltage protection stages in industrial control systems

Procurement Notes

Verify the specific suffix HB0G against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering quantity aligns with the factory's minimum order requirements and reel specifications. Confirm RoHS and REACH compliance documentation is available for your region's regulatory needs before finalizing procurement.

Selection Notes

Select this component when a 16 V regulated voltage is required in a high-reliability environment. The DO-41 package suits designs needing robust mechanical stability. Consider the 1 W power rating and thermal derating curves for high-temperature operation. Verify that the 5% voltage tolerance meets the circuit's precision requirements compared to tighter tolerance alternatives.

Part Context

This part belongs to the 1N4745AH series of 1 Watt Zener diodes from Taiwan Semiconductor. The series is widely used in general-purpose voltage regulation and clipping applications. The 'AH' designation typically indicates specific manufacturing lot or feature variations within the standard 1N4745A family, while 'HB0G' denotes the specific tape-and-reel packaging configuration.

Replacement Considerations

Direct substitutes include the 1N4745A from other manufacturers such as Microchip Technology or Fairchild Semiconductor. When replacing, verify that the alternative part matches the 16 V Zener voltage, 1 W power rating, and DO-41 package dimensions. Ensure the replacement also meets any specific automotive or environmental qualifications required by the original design.