1N4448WS-E3-18

Overview

The 1N4448WS-E3-18 is a standard small-signal switching diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 75 V and an average rectified current (Io) of 150 mA. The forward voltage (Vf) is specified as 720 mV at a forward current (If) of 5 mA. The device exhibits a reverse recovery time (trr) of 4 ns and a reverse leakage current of 5 µA at 75 V. It is housed in the SOD-80 surface-mount package, suitable for automated assembly processes.

Feature Summary

• High-speed switching capability with a 4 ns reverse recovery time
• Compact SOD-80 surface-mount package design
• Standard small-signal diode characteristics for general-purpose applications

Applications

• General-purpose signal switching circuits
• Low-current rectification tasks
• Protection against transient voltage spikes in low-power electronics

Procurement Notes

Verify the specific suffix E3-18 to confirm the SOD-80 package configuration, as suffixes often denote packaging or variant differences. Ensure compliance requirements such as RoHS status are confirmed against the latest manufacturer documentation before procurement. Cross-reference the exact part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a compact surface-mount solution is required for low-current switching applications. The 75 V reverse voltage rating suits low-voltage logic circuits. Consider the 150 mA current limit for load requirements. Compare with through-hole alternatives if board space permits higher current handling needs.

Part Context

This component belongs to the 1N4448 family of small-signal switching diodes. It shares core electrical specifications with other variants like the 1N4448W but differs in physical packaging. The WS designation typically indicates a specific tape-and-reel or cut-tape format within the SOD-80 footprint, optimizing it for high-volume surface-mount production lines.

Replacement Considerations

Direct substitutes include the 1N4448GS08 and 1N4448GS18 from Vishay, which share identical electrical parameters and the SOD-80 package. Verify pinout compatibility and thermal characteristics when replacing.