1N4740A-T50A

Overview

The onsemi 1N4740A-T50A is a 1-watt Zener diode with a nominal voltage of 10.0V and a tolerance of ±5%. It utilizes a DO-41 axial through-hole package and operates within a temperature range of -65°C to +200°C. Key electrical characteristics include a maximum reverse leakage current of 10 µA and a Zener impedance of 7 Ohms at a test current of 25 mA.

Feature Summary

• Provides stable voltage regulation via a glass-passivated junction design.
• Features built-in strain relief for mechanical durability in axial leaded packages.
• Supports high thermal stability with an extended operating temperature range.

Applications

• Voltage reference circuits requiring precise 10V levels.
• Overvoltage protection stages in power supply inputs.
• Clamping applications in signal conditioning paths.

Procurement Notes

Verify the specific suffix T50A against official datasheets, as it may indicate tape-and-reel packaging or specific screening levels distinct from standard bulk variants. Confirm RoHS compliance status and manufacturer lot traceability requirements prior to procurement to ensure alignment with project specifications.

Selection Notes

Select this component when a robust 1W axial Zener diode is required for high-temperature environments up to 200°C. The 10V nominal rating suits applications needing moderate voltage regulation. Ensure the circuit design accommodates the specified 7 Ohm dynamic impedance and 25 mA test current conditions for optimal performance.

Part Context

This part belongs to the widely used 1N47xx series of 1-watt Zener diodes manufactured by onsemi. The series offers extensive voltage selection across various tolerances. The 1N4740A variant specifically targets the 10V segment, providing a reliable solution for general-purpose voltage regulation tasks in industrial and consumer electronics.

Replacement Considerations

Direct substitutes include the 1N4740A (bulk) and 1N4740ATR (reel). Cross-manufacturer equivalents such as Nexperia 1N4740A,133 or Microsemi MX1N4740P are available, though verification of exact electrical parameters and package dimensions is required.