1N4748CE3/TR13

Overview

The Microchip Technology 1N4748CE3/TR13 is a silicon 1.0-watt Zener diode in the 1N4728A through 1N4764A series, housed in a plastic DO-41 (DO-204AL) axial lead package. It provides voltage regulation with a nominal Zener voltage of 22 V 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. Packaged in tape and reel format per EIA-296 standards, it offers flexible mounting terminals and void-free transfer molded epoxy body construction.

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

• General-purpose voltage regulation circuits
• Power supply reference voltage generation
• Over-voltage protection in low-power electronic systems

Procurement Notes

Verify that the component matches the specific JEDEC type number 1N4748A requirements, including the 22 V nominal voltage and ±5% tolerance. Confirm the presence of the 'e3' suffix indicates RoHS compliance and the 'TR' suffix confirms tape and reel packaging. Ensure the supplier documentation aligns with the Microsemi Scottsdale Division specifications for the plastic encapsulated variant.

Selection Notes

Select this component when a 1-watt power dissipation rating at 25°C is required for voltage regulation tasks. The plastic DO-41 package offers lower thermal resistance compared to glass-body options. Consider the ±5% standard tolerance suitable for general applications; tighter tolerances require different suffix identifiers. Verify compatibility with the specified operating temperature range of -65°C to +150°C.

Part Context

This part belongs to the widely used 1N4728A through 1N4764A series of silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a voltage selection from 3.3 V to 100 V. The 1N4748 designation specifically corresponds to the 22 V regulation point within this extensive lineup of standard voltage tolerance devices.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4748A or 1N4748B diodes in the DO-41 package. For equivalent performance with tighter tolerances, consider parts with C (±2%) or D (±1%) suffixes if available in the same package style.