1N486B

Overview

The onsemi 1N486B is a small signal diode housed in the DO-35 axial leaded package. It features a maximum repetitive reverse voltage of 250 V and supports an average rectified forward current of 200 mA. The device operates with a junction temperature up to 175 °C and can withstand storage temperatures ranging from -65 °C to +200 °C. Electrical characteristics include a breakdown voltage of 250 V at 100 µA, a forward voltage of 1.0 V at 100 mA, and a power dissipation rating of 500 mW.

Feature Summary

• Provides high surge current capability for transient protection applications
• Features low leakage current specifications for efficient operation
• Designed for general-purpose switching and rectification tasks

Applications

• General purpose rectification circuits
• Signal clipping and clamping applications
• Protection against voltage transients

Procurement Notes

Verify the specific manufacturer source when sourcing this component, as it was originally produced by Fairchild Semiconductor prior to integration into ON Semiconductor. Confirm that the part number format matches the updated nomenclature standards required by the current product management systems. Ensure compliance with RoHS directives if applicable to your manufacturing requirements.

Selection Notes

Select this component for designs requiring a robust axial leaded diode with a 250 V reverse voltage rating. Consider its thermal resistance and power dissipation limits when determining heat sinking needs. Evaluate the non-repetitive peak forward surge current ratings to ensure adequate margin for expected transient events within the target circuit environment.

Part Context

This component belongs to the standard small signal diode category, historically associated with Fairchild Semiconductor before corporate consolidation. It serves as a fundamental discrete semiconductor element used across various electronic assemblies where reliable unidirectional current flow is necessary. The DO-35 package provides a compact footprint suitable for through-hole mounting technologies.

Replacement Considerations

Consult official cross-reference lists for verified substitute part numbers. Verify pinout compatibility and electrical parameter equivalence before implementation.