1N4148W-HE3-18

Single Diodes Overview

The 1N4148W-HE3-18 is a silicon epitaxial planar switching diode manufactured by Vishay General Semiconductor - Diodes Division. It is housed in the SOD-123 surface-mount package and operates with a maximum DC reverse voltage of 75 V and an average rectified forward current of 150 mA. The device features a fast switching speed with a reverse recovery time of 4 ns and a low junction-to-ambient thermal resistance. It supports a wide operating temperature range from -55°C to +150°C and meets AEC-Q101 automotive qualification standards.

Single Diodes Feature Summary

• Fast switching capability with minimal reverse recovery time for high-speed signal processing
• Automotive-grade reliability certified under AEC-Q101 standards
• Compact SOD-123 surface-mount package design for space-constrained applications
• Wide operational temperature range suitable for harsh environments

Single Diodes Applications

• High-speed switching circuits in consumer electronics
• Signal demodulation and detection in communication devices
• Clamping and protection stages in automotive electronic control units
• General-purpose rectification in compact power supplies

Single Diodes Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific HE3 suffix indicates lead-free halogen-free construction compliant with RoHS directives. Check for recent End-of-Life notices as this part may be discontinued. Ensure storage conditions maintain moisture sensitivity level ratings prior to soldering.

Single Diodes Selection Notes

Select this component when small-signal high-speed switching is required in limited board space. The SOD-123 footprint offers a smaller alternative to traditional axial packages. Consider the 75 V reverse voltage rating against circuit peak inverse voltages. Verify compatibility with automated pick-and-place equipment due to the surface-mount form factor.

Single Diodes Part Context

This diode belongs to the widely used 1N4148 family of small-signal switching devices. The W suffix denotes the SOD-123 surface-mount case style, while HE3 indicates a halogen-free, lead-free variant. It serves as a modern replacement for older through-hole versions in contemporary printed circuit board designs requiring reduced profile and improved automation compatibility.

Single Diodes Replacement Considerations

Public confirmed substitute part numbers include 1N4148WS-HG3_A-08 and 1N4148W-E3-08. These alternatives share similar electrical characteristics and package types. Verify pinout compatibility and thermal performance before finalizing substitution.