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1N4448WS-AQ
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 150MA SOD323F
- Series：-
- Mfr：Diotec Semiconductor
- Package：Bulk
- 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：Automotive
- Qualification：AEC-Q101
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Overview
The Diotec Semiconductor 1N4448WS-AQ is a surface-mount small signal switching diode housed in an SOD-323F package. It features a maximum average forward current of 150 mA and a repetitive peak reverse voltage of 100 V. The device exhibits a reverse recovery time of less than 4 ns, ensuring high-speed performance. Forward voltage is specified at 1.25 V maximum when conducting 150 mA. Junction capacitance is typically 2 pF at 0 V bias and 1 MHz frequency. The component operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- AEC-Q101 qualified for automotive applications
- Extremely fast switching speed with low junction capacitance
- Low leakage current characteristics
Applications
- High-speed switching circuits
- Signal processing systems
- Automotive electronics
Procurement Notes
Verify the specific suffix designation during procurement to confirm AEC-Q101 qualification status. Ensure that the ordering information matches the required automotive grade specifications. Confirm package type and tape-and-reel quantities align with manufacturing requirements before finalizing orders.
Selection Notes
Select this component for designs requiring robust automotive-grade reliability combined with standard small-signal switching capabilities. The SOD-323F footprint offers space efficiency compared to through-hole alternatives. Consider the thermal resistance and power dissipation limits when designing heat management strategies for dense PCB layouts.
Part Context
This part belongs to the 1N4148WS/1N4448WS family of SMD small signal switching diodes manufactured by Diotec Semiconductor. The -AQ suffix specifically denotes AEC-Q101 qualification, distinguishing it from commercial or compliant-only variants. These devices are designed for general-purpose switching tasks where compact size and speed are critical factors.
Replacement Considerations
Consult official manufacturer documentation for verified substitute part numbers. Cross-reference electrical parameters such as reverse voltage, forward current, and recovery time to ensure functional compatibility without altering circuit design constraints.
