1N4741APE3/TR12

Overview

The Microchip Technology 1N4741APE3/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 11 V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum forward voltage of 1.2 V at 200 mA. Electrical characteristics include a test current of 23 mA, a maximum dynamic impedance of 8 Ω, and a maximum reverse current of 700 µA at a test voltage of 700 V.

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 regulation circuits requiring 11 V reference
• Power supply protection and clamping applications
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the ordering suffix TR12 corresponds to the tape and reel packaging option as defined by EIA-296 standards. Confirm RoHS compliance status associated with the e3 suffix. Ensure the component matches the specific JEDEC registered type number requirements for your design specifications before finalizing procurement orders.

Selection Notes

Select this component when an 11 V Zener voltage with ±5% tolerance is required in a plastic axial package. Consider the 1.0 W power dissipation rating and thermal resistance values for heat management. Verify compatibility with lead lengths and soldering temperatures specified in the mechanical data sheet.

Part Context

This part belongs to the widely used 1N47xxA series of silicon Zener diodes manufactured by Microsemi (now Microchip). The series covers voltages from 3.3 V to 100 V. The 'P' suffix indicates plastic construction, which offers lower thermal resistance compared to glass-body options. The 'e3' suffix denotes RoHS compliant annealed matte-tin plating.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4741A or 1N4741AP devices. For surface mount equivalents, consider SMAJ4741A or MLL4741A types. Ensure replacement parts match the 11 V nominal voltage, 1 W power rating, and DO-41 package dimensions.