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1N4448WS
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 150MA SOD323F
- Series：-
- Mfr：Diotec Semiconductor
- 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：1.25 V @ 150 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：4 ns
- Current - Reverse Leakage @ Vr：100 nA @ 75 V
- Capacitance @ Vr, F：2pF @ 0V, 1MHz
- Mounting Type：Surface Mount
- Package / Case：SC-90, SOD-323F
- Supplier Device Package：SOD-323F
- Operating Temperature - Junction：-55°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The Diotec Semiconductor 1N4448WS is a surface-mount small signal switching diode housed in an SOD-323F package. It features a maximum repetitive peak reverse voltage (VRRM) of 100 V and a DC reverse voltage (VR) of 75 V. The device supports a maximum average forward current (IFAV) of 150 mA and a non-repetitive peak forward surge current (IFSM) of 0.5 A at 1 µs. Electrical characteristics include a junction capacitance of 2 pF, a reverse recovery time (trr) of less than 4 ns, and a forward voltage (VF) of less than 1.25 V at 150 mA.
Feature Summary
- Extremely fast switching speed with low junction capacitance
- Low leakage current for efficient signal processing
- Compliant with RoHS directives without exemptions
Applications
- High-speed switching circuits
- Signal processing applications
- Commercial and industrial grade electronics
Procurement Notes
Verify the specific suffix to confirm automotive qualification status. Standard versions are commercial/industrial grade. Versions with -Q suffix are AEC-Q101 compliant, while -AQ suffix indicates AEC-Q101 qualified parts. Confirm mechanical data requirements such as tape and reel specifications before ordering.
Selection Notes
Select this component for designs requiring compact surface-mount solutions with high switching speeds. Ensure the operating temperature range fits within -55°C to +150°C. Consider the -Q or -AQ variants if automotive reliability standards are required. Verify that the 150 mA average current rating meets the circuit's continuous load demands.
Part Context
This part belongs to the Diotec SMD Small Signal Switching Diodes family, which also includes the 1N4148WS variant. Both share similar electrical profiles but differ in reverse voltage ratings. The series offers alternative case outlines including DO-35 and SOD-123F upon request.
Replacement Considerations
Diotec lists equivalent parts in different packages: LL4448 (MiniMELF), LS4448 (Q-MiniMELF), MCL4448 (Q-MicroMELF), and 1N4448W (SOD-123F). These alternatives maintain the same core functionality but require footprint adjustments.
