1N4148WS

Single Diodes Overview

The 1N4148WS is a small signal switching diode manufactured by Taiwan Semiconductor Corporation. It features a maximum average forward rectified current of 150 mA and a peak reverse voltage rating of 100 V. The device utilizes an SOD-323 surface mount package with two pins. Key electrical characteristics include a maximum reverse recovery time of 4 ns, a forward voltage drop of 1 V at rated current, and a maximum reverse leakage current of 5 µA. The component operates within a junction temperature range of -55°C to +150°C.

Single Diodes Feature Summary

• Fast switching capability with a reverse recovery time of 4 ns for high-speed circuit applications
• Compact SOD-323 surface mount package design for space-constrained PCB layouts
• High thermal stability supporting operation up to a junction temperature of 150°C

Single Diodes Applications

• General purpose signal switching circuits
• High-speed digital logic interface protection
• Clamping and clamping diodes in communication equipment

Single Diodes Procurement Notes

Verify the specific suffix R9G or other alphanumeric codes against the manufacturer's official datasheet to confirm exact packaging and reel specifications. Ensure the ordered part matches the required voltage and current ratings for the target application. Confirm RoHS compliance status through the supplier's documentation before procurement.

Single Diodes Selection Notes

Select this component when a compact surface mount solution is required for fast switching applications. Compare the 100 V peak reverse voltage rating against circuit requirements to ensure adequate margin. Consider the SOD-323 footprint compatibility during PCB layout planning. Evaluate the 150 mA continuous current limit against peak load conditions.

Single Diodes Part Context

This component belongs to the standard small signal switching diode family, serving as a surface mount alternative to traditional through-hole glass diodes like the 1N4148. It provides similar electrical performance in a smaller plastic outline package. The series is widely used in consumer electronics and industrial control systems requiring reliable signal processing.

Single Diodes Replacement Considerations

Direct substitutes include the 1N4148W from other manufacturers offering identical SOD-123/SOD-323 footprints and electrical ratings. Verify pinout orientation and cathode band marking consistency when replacing across different suppliers.