1N4751CE3/TR13

Overview

The Microchip Technology 1N4751CE3/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 30 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 compliance via the 'e3' suffix. Packaged in tape and reel format per EIA-296 standards as denoted by the 'TR13' suffix, it offers flexible mounting terminals and void-free transfer molded epoxy construction.

Feature Summary

• Provides precise voltage regulation with a ±2% tolerance on the nominal Zener voltage.
• Features a plastic encapsulated body offering lower thermal resistance compared to glass-body options.
• Includes flexible axial-lead terminals for standard through-hole mounting applications.
• Constructed with void-free transfer molded thermosetting epoxy meeting UL94V-0 flammability ratings.

Applications

• Voltage regulation circuits requiring stable reference voltages
• Power supply protection against overvoltage conditions
• General-purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the specific part number matches the required electrical characteristics, particularly the 30 V Zener voltage and ±2% tolerance associated with the C suffix. Confirm the presence of the e3 suffix for RoHS compliance and TR13 for tape and reel packaging. Ensure compatibility with the specified operating temperature range and power dissipation limits during system design validation.

Selection Notes

Select this component when a 1-watt Zener diode with high voltage accuracy is required in an axial-lead package. The plastic construction provides better thermal performance than glass equivalents. Consider the ±2% tolerance if tighter voltage stability is needed compared to standard 5% or 10% variants. Verify that the application environment supports the specified operating temperature range and power derating requirements.

Part Context

This component belongs to the Microsemi (now Microchip Technology) 1N4728AP through 1N4764AP series of silicon 1-watt Zener diodes. The series covers a wide voltage selection from 3.3 to 100 volts. The 1N4751 variant specifically targets the 30-volt regulation point. The CE3 designation indicates a plastic body, 2% tolerance, RoHS compliance, and tape-and-reel packaging configuration.

Replacement Considerations

Compatible replacements include other 1N4751 variants with matching electrical specifications. Devices such as 1N4751A or 1N4751P may be considered if tolerance and package differences are acceptable. Ensure any substitute maintains the 1-watt power rating and axial-lead form factor for direct interchangeability.