1N4741CP/TR8

Overview

The Microchip Technology 1N4741CP/TR8 is a silicon 1-watt Zener diode 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 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 includes a TR8 suffix for tape and reel packaging.

Feature Summary

• Provides precise voltage regulation with a ±2% tolerance on the nominal Zener voltage.
• Features a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards.
• Offers flexible axial-lead mounting terminals suitable for through-hole applications.
• Includes RoHS compliant manufacturing options available via specific ordering suffixes.

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in power supply inputs
• Clamping applications in signal processing paths

Procurement Notes

Verify the exact manufacturer origin, as this part number originates from Microsemi which was acquired by Microchip Technology. Confirm that the 'TR8' suffix correctly denotes the tape and reel packaging format required for automated assembly processes. Ensure compliance with any specific environmental or screening requirements mandated by the end application.

Selection Notes

Select this component when a 11 V regulation point with high precision (±2%) is required in a standard axial package. The 1 W power dissipation rating supports moderate current loads. Consider the thermal resistance characteristics if operating near the upper temperature limits or in confined spaces without adequate airflow.

Part Context

This device belongs to the 1N4728AP through 1N4764AP series of 1 Watt Silicon Zener Diodes. The series offers an extensive voltage selection from 3.3 to 100 Volts. The 'P' suffix designates the plastic encapsulated construction, which provides lower thermal resistance compared to glass-body options. The 'C' suffix specifically identifies the tighter 2% voltage tolerance variant.

Replacement Considerations

Compatible substitutes include other 1N4741A variants with equivalent electrical specifications. Devices such as the 1N4741AP or 1N4741APE3 offer identical performance in the same package. Verify that any replacement maintains the ±2% tolerance and 1 W power rating to ensure circuit compatibility.

FAQ

What does the 'C' suffix indicate in the part number?

The 'C' suffix indicates that the Zener voltage has a tolerance of plus or minus 2%, which is tighter than the standard 5% tolerance found in the 'A' suffix version.

Is this device sensitive to electrostatic discharge?

No, the device is nonsensitive to ESD per MIL-STD-750 Method 1020.