1N4148W-HE3_A-18

Single Diodes Overview

The Vishay 1N4148W-HE3_A-18 is a silicon epitaxial planar small signal fast switching diode housed in an SOD-123 surface-mount package. It features a maximum repetitive peak reverse voltage of 100 V and a continuous forward current rating of 300 mA. The device exhibits a maximum reverse recovery time of 4 ns and a low junction capacitance of 1.5 pF at zero bias. It is AEC-Q101 qualified for automotive applications, operates within a junction temperature range of -55 °C to +150 °C, and utilizes RoHS-compliant molding compound with UL 94 V-0 flammability ratings.

Single Diodes Feature Summary

• Fast switching capability with a maximum reverse recovery time of 4 ns
• AEC-Q101 qualified for automotive reliability standards
• Low junction capacitance of 1.5 pF for minimal signal distortion
• RoHS-compliant construction with UL 94 V-0 flammability rated molding compound

Single Diodes Applications

• High-speed signal switching circuits
• Automotive electronic control modules
• General purpose rectification in low-power applications
• Clamping and protection of sensitive logic inputs

Single Diodes Procurement Notes

Verify the HE3_A suffix confirms AEC-Q101 qualification rather than commercial grade. Confirm the -18 packaging code corresponds to 10,000 units per 13-inch reel. Ensure the component meets specific automotive environmental requirements before final integration into safety-critical systems.

Single Diodes Selection Notes

Select this variant when automotive qualification is mandatory. The SOD-123 package offers compact footprint suitability for high-density PCB layouts. Consider the 4 ns reverse recovery time for high-frequency operation where standard diodes may introduce excessive switching losses or signal distortion.

Single Diodes Part Context

This component belongs to the 1N4148W series of small signal fast switching diodes manufactured by Vishay Semiconductors. It serves as a surface-mount alternative to through-hole variants, providing equivalent electrical performance in a smaller form factor suitable for automated assembly processes.

Single Diodes Replacement Considerations

The 1N4148W-E3-18 is a commercially graded version lacking AEC-Q101 qualification. Verify if automotive certification is required before substituting with non-AEC parts.