1N4448WS-G3-08

Overview

The 1N4448WS-G3-08 is a standard silicon 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 device exhibits a forward voltage (Vf) of 720 mV at 5 mA and a reverse leakage current of 5 µA at 75 V. Key electrical characteristics include a reverse recovery time (trr) of 4 ns and a junction capacitance of 4 pF at 0 V, 1 MHz. It operates within a junction temperature range of -55°C to 150°C and utilizes the SOD-323 surface-mount package.

Feature Summary

• High-speed switching capability with a 4 ns reverse recovery time for efficient signal processing
• Compact SOD-323 surface-mount package design suitable for space-constrained PCB layouts
• Low forward voltage drop of 720 mV at 5 mA to minimize power loss in signal paths
• Robust thermal performance with a maximum junction temperature rating of 150°C

Applications

• General-purpose signal switching circuits
• Clamping and protection applications in electronic systems
• High-frequency signal processing tasks requiring fast response times

Procurement Notes

Verify the specific suffix G3-08 against official Vishay documentation to confirm RoHS compliance and packaging details. Ensure the ordering information matches the required tape-and-reel or cut-tape format. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before procurement.

Selection Notes

Select this component when a small-signal switching diode with low capacitance and fast recovery is required in a surface-mount form factor. Compare the 150 mA current rating and 75 V reverse voltage against circuit requirements. Consider the SOD-323 footprint constraints and thermal management needs relative to alternative packages like DO-35 or SOD-80 variants.

Part Context

This part belongs to the 1N4448 family of standard silicon switching diodes produced by Vishay. It serves as a surface-mount equivalent to through-hole variants, maintaining similar electrical performance characteristics while offering improved automation compatibility for manufacturing processes. The G3-08 designation indicates specific environmental compliance and packaging configuration within the broader product line.

Replacement Considerations

Direct substitutes include other 1N4448 series devices in SOD-323 packages from different manufacturers, provided they meet the 75 V, 150 mA, and 4 ns trr specifications. Verify pinout compatibility and thermal resistance values when transitioning between suppliers.