1N483B

Overview

The Fairchild Semiconductor 1N483B is a signal or computer diode designed for through-hole mounting in the DO-35-2 axial package. It operates with a maximum reverse voltage of 70V and handles an average forward current of 200mA. The device dissipates up to 500mW of power and supports a maximum surge current of 2A. Key electrical characteristics include a forward voltage drop of 1V at 100mA and a reverse leakage current of 10µA at 1V.

Feature Summary

• Provides reliable rectification for signal and computer applications
• Features low forward voltage drop for efficient conduction
• Supports high surge current handling capabilities

Applications

• Signal rectification circuits
• Computer logic interface protection
• General-purpose switching applications

Procurement Notes

Verify the specific manufacturer designation, as Microchip Technology acquired Fairchild's discrete product lines. Confirm that the component matches the original Fairchild specifications regarding the DO-35-2 package and electrical ratings. Ensure compliance with required environmental standards such as RoHS before integration into designs.

Selection Notes

Select this component when a robust axial leaded diode is required for moderate current signal processing. The 70V rating suits low-voltage logic systems. Consider the thermal dissipation limits in enclosed spaces. Verify pin compatibility with existing PCB footprints designed for the DO-35 style housing.

Part Context

This part belongs to the standard 1N4xxx series of silicon planar junction rectifiers. These components are widely used in general-purpose electronics for their reliability and standardized form factor. The series offers various voltage ratings to suit different circuit requirements while maintaining consistent physical dimensions.

Replacement Considerations

Public confirmed substitute part numbers: 1N483B/TR (Microchip Technology). Verify equivalent electrical parameters and package compatibility before substitution.