1N4148 BK

Single Diodes Overview

The Central Semiconductor Corp 1N4148 BK is a high-speed silicon switching diode housed in a DO-35 hermetically sealed glass case. Key electrical parameters include a peak repetitive reverse voltage of 100 V and a peak working reverse voltage of 75 V. The device supports an average forward current of 150 mA and a DC forward current of 200 mA, with a power dissipation rating of 500 mW. It features a maximum reverse leakage current of 25 nA at 20 V, a typical junction capacitance of 4.0 pF, and a reverse recovery time of 4.0 ns.

Single Diodes Feature Summary

• High-speed switching capability with a reverse recovery time of 4.0 ns
• Hermetically sealed glass construction for environmental protection
• Wide operating temperature range from -65°C to +200°C

Single Diodes Applications

• General-purpose signal rectification
• Clamping circuits
• Protection against transient voltages

Single Diodes Procurement Notes

Verify the specific ordering suffix 'BK' against the manufacturer's official documentation to confirm if it denotes a distinct variant or standard packaging configuration. Ensure the component matches the DO-35 package outline and meets the required hermetic sealing specifications for your application environment.

Single Diodes Selection Notes

Select this component for applications requiring fast switching speeds and reliable performance in small-signal environments. Consider the 75 V peak working reverse voltage limit when designing circuits exposed to potential voltage spikes. The DO-35 package is suitable for through-hole mounting where space constraints allow.

Single Diodes Part Context

This part belongs to the widely used 1N4148 family of switching diodes. It serves as a drop-in replacement for the 1N914 diode, offering similar electrical characteristics within the same DO-35 glass package format. The product line is designed for general-purpose electronic applications requiring fast response times.

Single Diodes Replacement Considerations

The datasheet explicitly identifies the 1N914 as a compatible drop-in replacement. Verify that any substitute maintains the DO-35 package dimensions and meets the 4.0 ns reverse recovery time requirement.