1N4148WT

Single Diodes Overview

The 1N4148WT is a silicon epitaxial planar switching diode manufactured by SMC Diode Solutions. It features an average rectified forward current of 250 mA and a maximum DC reverse voltage of 75 V. The device operates within a junction temperature range of -55°C to 150°C. Key electrical characteristics include a maximum reverse leakage current of 2.5 µA at 75 V, a typical capacitance of 4 pF at 0 V, and a fast reverse recovery time of 4 ns. It is housed in the SOD-123 surface mount package.

Single Diodes Feature Summary

• Fast switching capability with a 4 ns reverse recovery time
• Silicon epitaxial planar construction for reliability
• Surface mount SOD-123 packaging for automated assembly

Single Diodes Applications

• High-speed switching circuits
• Signal demodulation
• Clamping and protection applications

Single Diodes Procurement Notes

Verify the manufacturer designation on the component marking code against official SMC Diode Solutions documentation. Confirm the specific suffix matches the requested SOD-123 variant. Ensure compliance with RoHS3 standards as specified in the datasheet. Cross-reference the DigiKey part number 1655-1N4148WTR-ND for accurate ordering details.

Single Diodes Selection Notes

Select this component when a compact surface mount solution is required for high-speed signal processing. The SOD-123 package offers space efficiency compared to through-hole alternatives. Verify that the 75 V reverse voltage rating meets the circuit's peak inverse voltage requirements. Consider the 250 mA average forward current limit for load compatibility.

Single Diodes Part Context

This component belongs to the standard 1N4148 family of small-signal switching diodes. While traditional versions utilize DO-35 axial packages, the WT suffix indicates the SMD SOD-123 form factor. This variation maintains the core electrical performance of the legacy design while enabling modern surface mount technology integration.

Single Diodes Replacement Considerations

Compatible substitutes include the 1N4148W from other manufacturers offering identical SOD-123 packaging and electrical specifications.