1N4448WS-HE3-08

Overview

The 1N4448WS-HE3-08 is a small signal switching diode manufactured by Vishay General Semiconductor - Diodes Division. It features a standard technology construction housed in an SOD-323 surface-mount package. The device supports a maximum DC reverse voltage of 75 V and an average rectified forward current of 150 mA. Key electrical characteristics include a forward voltage of 720 mV at 5 mA, a reverse leakage current of 5 µA at 75 V, and a rapid reverse recovery time of 4 ns. It operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• High-speed switching capability with a 4 ns reverse recovery time for efficient signal processing
• Automotive-grade reliability certified under AEC-Q101 standards
• Compact SOD-323 surface-mount packaging for space-constrained designs
• Wide operating junction temperature range from -55°C to +150°C

Applications

• Automotive electronic circuits requiring AEC-Q101 compliance
• General-purpose high-speed switching applications
• Signal demodulation and clamping in consumer electronics

Procurement Notes

Verify the specific suffix HE3-08 against official Vishay documentation to confirm RoHS compliance and halogen-free status. Ensure the ordering part number matches the required SOD-323 package variant. Confirm availability through authorized distributors as lead times may vary based on production schedules and regional supply constraints.

Selection Notes

Select this component when a compact surface-mount switching diode with automotive qualification is required. The 75 V reverse voltage rating suits low-voltage signal paths. Compare the 150 mA current handling against circuit requirements. Consider the 4 ns recovery time for high-frequency applications where faster alternatives might be unnecessary or slower devices would cause distortion.

Part Context

This part belongs to the 1N4448 family of small signal switching diodes produced by Vishay. It serves as a modern surface-mount alternative to traditional axial-leaded variants like the DO-35 packaged 1N4448. The HE3 designation indicates enhanced efficiency and environmental compliance compared to standard versions, aligning with industry trends toward miniaturization and stricter regulatory standards in semiconductor manufacturing.

Replacement Considerations

Direct substitutes include the 1N4448WS-E3-08 and 1N4448W-E3-08. Verify pinout compatibility and ensure the replacement maintains the same SOD-323 footprint and electrical ratings.