1N4741E3/TR13

Overview

The Microchip Technology 1N4741E3/TR13 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) package. It provides voltage regulation at a nominal Zener voltage of 11 volts with a standard tolerance of plus or minus 5%. The device operates within a temperature range of -65°C to +150°C and features RoHS compliant annealed matte-tin plating on its terminals.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for standard through-hole applications
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in power supply designs
• General-purpose voltage regulation tasks in electronic assemblies

Procurement Notes

Verify that the ordering suffix TR13 corresponds to tape and reel packaging as specified by EIA-296 standards. Confirm RoHS compliance status via the e3 suffix designation. Ensure the required voltage tolerance aligns with the standard A suffix specification. Check for any specific military screening prefixes if higher reliability levels are mandated for the application environment.

Selection Notes

Select this component when a 1-watt power dissipation rating is sufficient for the thermal management requirements. The plastic encapsulation offers lower thermal resistance compared to glass-body options. Consider the axial lead configuration for compatibility with existing printed circuit board layouts. Evaluate the 11-volt breakdown characteristic against the specific circuit regulation needs.

Part Context

This part belongs to the widely recognized 1N47xx series of silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a voltage selection from 3.3 to 100 volts. The plastic variant distinguishes itself from the glass-body counterparts by offering improved thermal performance characteristics while maintaining standard JEDEC registration.

Replacement Considerations

Surface mount equivalents such as SMAJ4741A or MLL4741A are available from the same manufacturer family. Consult factory documentation for other specific surface mount configurations or alternative voltage tolerances.