1N4741CPE3/TR8

Overview

The Microchip Technology 1N4741CPE3/TR8 is a silicon 1-watt Zener diode housed in a plastic DO-41 axial lead package. It provides voltage regulation with a nominal Zener voltage of 11 V and a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C and features RoHS compliant annealed matte-tin plating, designated by the 'e3' suffix. It is supplied in tape and reel packaging for automated assembly.

Feature Summary

• Provides precise voltage regulation with a standard 1-watt power dissipation capability
• Features flexible axial-lead mounting terminals suitable for through-hole applications
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Offers moisture classification Level 1 requiring no dry pack storage

Applications

• Voltage regulation circuits over broad operating current ranges
• Reference voltage sources in electronic systems
• Overvoltage protection components

Procurement Notes

Verify that the ordering suffixes match specific requirements: 'P' indicates plastic construction, 'e3' confirms RoHS compliance with tin plating, and 'TR' specifies tape and reel packaging. Confirm the 'C' suffix denotes the required 2% voltage tolerance. Ensure the component meets the specified JEDEC registration standards before finalizing procurement.

Selection Notes

Select this component when a 11 V reference with high precision (±2%) is required in a 1-watt axial package. Consider the plastic DO-41 form factor for standard through-hole mounting. Evaluate thermal derating curves if operating at elevated ambient temperatures or on FR4 PCBs to ensure steady-state power limits are not exceeded.

Part Context

This part belongs to the 1N4728AP thru 1N4764AP series of silicon Zener diodes manufactured by Microsemi (now Microchip). The series covers a wide voltage selection from 3.3 to 100 volts. The 1N4741 variant specifically targets the 11 V regulation point within this extensive lineup of plastic encapsulated devices.

Replacement Considerations

Consult the manufacturer for surface mount equivalents such as SMAJ4741A or MLL4741A. Verify compatibility with other manufacturers offering 1N4741 variants, ensuring voltage tolerance and package dimensions align with design constraints.