1N4740A-TP

Overview

The MCC 1N4740A-TP is a silicon planar Zener diode housed in a DO-41G glass package. It provides a nominal voltage of 10 V with a 5% tolerance and a power dissipation rating of 1 W at 50°C ambient temperature. The device features a maximum reverse leakage current of 10 µA at 7.6 V, a dynamic impedance of 7 Ohms at the test current of 25 mA, and a forward voltage drop of 1.2 V. It operates within a temperature range of -65°C to +200°C.

Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Encased in a hermetic glass package for environmental protection
• Compliant with lead-free finish and RoHS directives

Applications

• DC power supply voltage regulation
• Voltage reference circuits
• Overvoltage protection stages

Procurement Notes

Verify authenticity by purchasing directly from Micro Commercial Components or authorized distributors to avoid counterfeit parts. Confirm that the component meets specific quality standards for handling and storage. Ensure the ordering suffix matches the required packaging format, such as tape and reel or bulk carton quantities.

Selection Notes

Select this component when a 10 V reference is required in through-hole designs. Consider the 1 W power dissipation limit and derating requirements above 100°C. Verify that the 7 Ohm dynamic impedance aligns with circuit stability needs. Ensure the operating temperature range fits the application environment.

Part Context

This part belongs to the 1N4728 through 1N4761 series of 1 Watt Zener diodes manufactured by Micro Commercial Components. The series covers voltages from 3.3 V to 75 V. The 'A' suffix indicates a 5% voltage tolerance, distinguishing it from standard versions with 10% tolerance.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4740A specification. Verify that substitute components match the 10 V nominal voltage, 1 W power rating, and DO-41 package dimensions.