1N4740A A0G

Overview

The 1N4740A A0G is a single silicon Zener diode manufactured by Taiwan Semiconductor. It features a nominal Zener voltage of 10 V with a tolerance of ±5%. The device is designed for through-hole mounting in a DO-41-2 (DO-204AL) axial leaded package. It has 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 10 µA, a Zener impedance of 7 Ohms, and a test current of 25 mA.

Feature Summary

• Glass passivated junction construction for enhanced stability
• Built-in strain relief on leads to prevent mechanical damage
• Low inductance design suitable for high-frequency applications

Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage sources

Procurement Notes

Verify the specific suffix 'A0G' against the manufacturer's official documentation to confirm packaging details and compliance status. Ensure that the requested component matches the exact part number specifications, as variations may exist between manufacturers or production batches. Cross-reference the datasheet for any recent product change notifications or discontinuation notices before finalizing procurement decisions.

Selection Notes

Select this component when a standard 10 V Zener reference is required in a through-hole configuration. The DO-41 package offers robust mechanical handling compared to surface-mount alternatives. Consider the 1 W power rating and operating temperature limits to ensure adequate thermal management in the target application environment without requiring excessive heatsinking.

Part Context

This component belongs to the 1N4740 series of glass-passivated silicon Zener diodes. These devices are widely used in general-purpose electronic circuits where stable voltage references are needed. The 1N4740A variant specifically denotes the 10 V version within this family, standardized across multiple semiconductor manufacturers for interchangeability in legacy designs.

Replacement Considerations

Direct replacements include 1N4740A from onsemi, Nexperia, and Vishay. Verify pinout compatibility and package dimensions (DO-41) when substituting. Ensure the replacement part meets the same 1 W power dissipation and 10 V Zener voltage requirements.