1N4148_NL

Single Diodes Overview

The Fairchild Semiconductor 1N4148_NL is a small signal switching diode housed in the DO-35 axial leaded package. It features a peak repetitive reverse voltage of 100 V and an average forward rectified current rating of 200 mA. The device exhibits a maximum forward voltage drop of 1 V at 10 mA and a low junction capacitance of 4 pF. Its fast switching capability is characterized by a reverse recovery time of 4 ns. The component supports a maximum DC operating temperature of 175 °C and is compliant with RoHS standards.

Single Diodes Feature Summary

• Fast switching performance with a 4 ns reverse recovery time for high-speed digital applications
• High thermal stability allowing operation up to 175 °C junction temperature
• Low leakage current and capacitance suitable for precision signal processing

Single Diodes Applications

• General purpose signal switching circuits
• High frequency detection and demodulation
• Clamping and protection in digital logic interfaces

Single Diodes Procurement Notes

Verify the specific suffix 'NL' against the official Fairchild datasheet to confirm if it denotes a specific tape-and-reel variant or standard bulk packaging, as generic 1N4148 specifications may vary by manufacturer lot. Ensure the component matches the required DO-35 package dimensions and lead form factor for your PCB layout constraints before finalizing procurement.

Single Diodes Selection Notes

Select this component when a robust, through-hole small signal diode with proven reliability is required. The 1N4148_NL offers a balance of speed and current handling suitable for general electronics. Consider surface mount alternatives like the 1N4148WS only if board space constraints necessitate SMD packaging, otherwise the DO-35 package provides superior mechanical stability for manual assembly or wave soldering processes.

Single Diodes Part Context

The 1N4148 series is a widely standardized small signal switching diode originally defined by ON Semiconductor (formerly Fairchild). The 1N4148_NL designation specifically refers to the Fairchild Semiconductor manufacturing line of this classic component. It remains a fundamental discrete semiconductor device used across various industries for its consistent electrical characteristics and availability in the traditional glass DO-35 axial package.

Single Diodes Replacement Considerations

Direct substitutes include the 1N4448 for higher voltage ratings or the 1N914 for equivalent performance from other manufacturers. Surface mount equivalents such as the 1N4148WS or BAS70 offer identical electrical functionality in compact packages. Verify pinout compatibility and thermal resistance differences when transitioning between axial and SMD variants.