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1N4448W
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 150MA SOD123F
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：75 V
- Current - Average Rectified (Io)：150mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 100 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：4 ns
- Current - Reverse Leakage @ Vr：5 µA @ 75 V
- Capacitance @ Vr, F：4pF @ 0V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：SOD-123F
- Supplier Device Package：SOD-123F
- Operating Temperature - Junction：-65°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The Taiwan Semiconductor Corporation 1N4448W is a small signal switching diode housed in an SOD-123F surface-mount package. It features a peak reverse voltage of 75 V and supports an average forward current of 150 mA. The device exhibits a fast recovery time of 4 ns, with a maximum reverse leakage current of 5 µA at 75 V. Operating junction temperatures range from -65°C to 150°C, and the unit includes a molded plastic case with UL flammability classification.
Feature Summary
- Fast switching speed suitable for high-frequency applications
- Surface mount package designed for automated insertion
- High conductance characteristics for general purpose switching
Applications
- General purpose switching circuits
- High-speed rectification
- Clamping and protection applications
Procurement Notes
Verify the specific suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging options. Ensure the selected variant matches the required reverse voltage and current ratings for the target circuit design. Cross-reference RoHS compliance status directly with the supplier documentation before procurement.
Selection Notes
Select this component when a compact surface-mount solution is required for fast switching tasks. The SOD-123F package offers space efficiency compared to through-hole alternatives. Confirm that the 75 V reverse voltage rating aligns with the system's peak inverse voltage requirements to ensure reliable operation under stress conditions.
Part Context
This part belongs to the standard small-signal switching diode family, often serving as a surface-mount equivalent to axial-lead counterparts like the 1N4448. It is widely used in consumer electronics and industrial control systems where board space is limited. The device provides a balance of speed and current handling capability for low-power signal processing.
Replacement Considerations
Direct substitutes include Vishay 1N4448W-E3-08 and Diodes Inc. 1N4448W-7. Verify pinout compatibility and thermal dissipation limits when replacing components from different manufacturers.
