1N4751E3/TR13

Overview

The Microchip Technology 1N4751E3/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 30V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features RoHS-compliant annealed matte-tin plating. The 'TR13' suffix indicates tape-and-reel packaging compliant with EIA-296 standards.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 flammability ratings
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation circuits requiring 1W power dissipation
• Reference voltage sources in electronic systems
• Overvoltage protection components in low-voltage DC lines

Procurement Notes

Verify that the ordering suffix matches the required packaging configuration, as the TR13 designation specifically denotes tape-and-reel supply. Confirm RoHS compliance status by checking the e3 suffix on the official datasheet or manufacturer documentation. Ensure the requested quantity aligns with the minimum reel size specified by the supplier to avoid partial reel handling fees or availability issues.

Selection Notes

Select this component when a 30V regulation point with 5% tolerance is required in an axial-lead form factor. Consider the plastic DO-41 package for lower thermal resistance compared to glass-body options if heat dissipation is a constraint. Verify that the maximum steady-state power dissipation of 1.0 watt at specific lead temperatures meets the circuit's thermal design requirements.

Part Context

This part belongs to the widely used 1N47xxA series of silicon Zener diodes manufactured by Microsemi (now Microchip). The series covers a voltage range from 3.3V to 100V. The 'e3' suffix indicates RoHS compliance, while the 'P' in the base model name (1N4751AP) specifies the plastic encapsulation variant, distinguishing it from the glass-body G-suffix versions.

Replacement Considerations

Direct replacements include other manufacturers' 1N4751A diodes in DO-41 packages. Surface mount equivalents such as SMAJ4751A or MLL4751A are available but require different footprint considerations. Ensure any substitute maintains the 30V nominal voltage and 5% tolerance specifications.