1N4448W-G3-08

Overview

The 1N4448W-G3-08 is a silicon epitaxial planar switching diode manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum DC reverse voltage (Vr) of 75 V and an average forward rectified current (Io) of 150 mA. The device exhibits a typical 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 is housed in the SOD-123 surface-mount package.

Feature Summary

• High-speed switching capability with a 4 ns reverse recovery time for efficient signal processing.
• Compact SOD-123 surface-mount package design suitable for space-constrained PCB layouts.
• Robust thermal performance supporting a maximum junction temperature of 150°C.

Applications

• General-purpose high-speed switching circuits
• Clamping and protection applications
• Signal demodulation

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 SOD-123 tape-and-reel quantity. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before procurement.

Selection Notes

Select this component for designs requiring small-signal switching with low capacitance and fast recovery. Compare the 75 V reverse voltage rating against circuit peak inverse voltage requirements. Consider the SOD-123 footprint compatibility during layout phase. Evaluate thermal management needs given the 150°C junction limit and 150 mA current rating.

Part Context

This part belongs to the 1N4448 family of standard switching diodes from Vishay. It serves as a surface-mount alternative to through-hole variants like the 1N4448TAP. The device is designed for general-purpose applications requiring reliable performance in compact electronic assemblies. It shares core electrical specifications with other members of the series while offering distinct packaging advantages.

Replacement Considerations

Direct substitutes include 1N4448W-E3-08 and 1N4148WS-G3-08. Verify pinout compatibility and ensure equivalent electrical ratings such as Vr, Io, and trr are met. Confirm that the replacement package matches the existing PCB footprint constraints.