1N4740ATR

Overview

The onsemi 1N4740ATR is a single-channel general-purpose Zener diode housed in a DO-41 through-hole package. It features a nominal Zener voltage of 10 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +200°C. Key electrical parameters include a test current of 25 mA, a maximum Zener impedance of 7 Ω, and a maximum reverse leakage current of 10 μA.

Feature Summary

• Provides stable voltage regulation at a nominal 10 V level for circuit protection and reference applications.
• Capable of handling high thermal loads with a maximum power dissipation rating of 1 W.
• Designed for robust operation across an extended industrial temperature range up to 200°C.

Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in analog signal processing

Procurement Notes

Verify the specific suffix 'ATR' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the requested quantity aligns with standard reel sizes defined by onsemi. Cross-reference the part number with authorized distributors to confirm authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a precise 10 V regulation point is required with tight tolerance constraints. The DO-41 package offers reliable through-hole mounting for prototyping or high-reliability designs. Consider the 1 W power rating to ensure adequate thermal headroom under continuous operating conditions without requiring additional heat sinking.

Part Context

This component belongs to the 1N4740A series of silicon Zener diodes manufactured by onsemi. The series is widely recognized for its consistency in voltage regulation performance. The ATR suffix typically denotes a specific packaging configuration, such as tape and reel, intended for automated assembly processes.

Replacement Considerations

Compatible substitutes include Vishay Semiconductors 1N4740A-TR and generic equivalents meeting the 1N4740A specification. Verify that replacement parts maintain identical voltage tolerance, power dissipation ratings, and package dimensions to ensure mechanical and electrical compatibility.