1N4755CE3/TR13

Overview

The Microchip Technology 1N4755CE3/TR13 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 43 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 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

Applications

• Voltage regulation circuits requiring precise reference voltages
• Power supply protection and stabilization
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the specific part number includes the TR13 suffix to confirm tape and reel packaging as specified. Ensure compliance requirements match the RoHS-compliant status indicated by the e3 suffix. Confirm that the C suffix corresponds to the required 2% voltage tolerance for your design specifications before finalizing procurement orders.

Selection Notes

Select this component when a 43 V reference with high precision is needed in an axial package. The plastic construction offers lower thermal resistance compared to glass-body options. Consider the 1.0 W power dissipation rating and ensure adequate heat sinking or derating is applied if operating near maximum limits at elevated ambient temperatures.

Part Context

This device belongs to the widely used 1N47xx series of 1-watt Zener diodes manufactured by Microsemi (now Microchip). The series covers a voltage range from 3.3 V to 100 V. The CE3 variant specifically denotes the plastic encapsulation, 2% tolerance, and lead-free compliant termination, distinguishing it from glass-body or standard tolerance versions.

Replacement Considerations

Direct replacements include other manufacturers' 1N4755A equivalents with matching 43 V and 1 W ratings. For tighter tolerance needs, verify compatibility with 1N4755D variants. Surface mount alternatives such as SMAJ4755A are available but require PCB layout adjustments.