1N4741CP/TR12

Overview

The Microchip Technology 1N4741CP/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial package. It provides voltage regulation with a nominal Zener voltage of 11V 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 a maximum dynamic impedance of 8 Ohms at a test current of 23 mA. It is supplied in tape and reel packaging.

Feature Summary

• Provides precise voltage regulation with a standard 5% tolerance or tighter 2% and 1% options available via specific part number suffixes.
• Features flexible axial-lead mounting terminals suitable for through-hole applications.
• Constructed with a void-free transfer molded thermosetting epoxy body that meets UL94V-0 flammability standards.
• Includes moisture classification Level 1 per IPC/JEDEC J-STD-020B, eliminating the need for dry pack storage.

Applications

• Voltage regulation over broad operating current and temperature ranges
• Reference voltage sources in electronic circuits
• Protection against voltage transients

Procurement Notes

Verify the component's authenticity by checking the manufacturer markings and datasheet alignment. Confirm the presence of the TR suffix indicates tape and reel packaging. Ensure the C suffix corresponds to the required 2% voltage tolerance. Check RoHS compliance status if environmental regulations apply to your assembly process.

Selection Notes

Select this component when a stable 11V reference with high precision is required. The 1W power rating supports steady-state operation up to 105°C lead temperature. Consider the thermal resistance characteristics for PCB layout. Verify that the axial lead form factor fits the target mechanical design constraints.

Part Context

This part belongs to the JEDEC registered 1N4728A to 1N4764A series of 1.0-watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series offers an extensive voltage selection from 3.3 to 100 volts. The plastic encapsulated variants provide lower thermal resistance compared to glass-body options while maintaining robust performance.

Replacement Considerations

Surface mount equivalents are available as SMAJ4741A and MLL4741A. Other manufacturers producing JEDEC registered 1N4741A parts may serve as functional substitutes if electrical parameters match.