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1N4448
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 200MA DO35
- Series：-
- Mfr：Diotec Semiconductor
- Package：Cut Tape (CT),Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：75 V
- Current - Average Rectified (Io)：200mA
- 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：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Supplier Device Package：DO-35
- Operating Temperature - Junction：-50°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The Diotec Semiconductor 1N4448 is a small signal switching diode designed for commercial and industrial applications. It features a repetitive peak reverse voltage of 100 V and a maximum average forward current of 200 mA. The device exhibits a very high switching speed with a reverse recovery time of less than 4 ns and low junction capacitance of approximately 4 pF. It operates within a junction temperature range of -50°C to +175°C and supports non-repetitive peak forward currents up to 4000 mA.
Feature Summary
- Extremely fast switching capability suitable for high-speed signal processing
- Low junction capacitance and low leakage current characteristics
- Compliant with RoHS, REACH, and Conflict Minerals regulations
Applications
- Signal processing circuits
- High-speed switching applications
Procurement Notes
Verify the specific ordering suffix when purchasing. Suffixes such as -Q indicate AEC-Q101 compliance, while -AQ denotes AEC-Q101 qualification. Confirm package availability, as the component is offered in DO-35 and SOD-27 configurations. Ensure the selected variant matches the required reliability grade for the intended commercial or industrial environment.
Selection Notes
Select this component for designs requiring rapid signal transition and minimal parasitic effects. The 100 V reverse voltage rating provides adequate headroom for standard logic levels. Consider the thermal resistance and power dissipation limits when determining heat management requirements for dense circuit layouts.
Part Context
This part belongs to the Diotec 1N4148 family of small signal switching diodes. It shares similar electrical specifications with the 1N4148, 1N4150, and 1N4151 variants. The primary distinction lies in the specific voltage and current ratings defined for each model within the series.
Replacement Considerations
Direct substitutes include the 1N4148, 1N4150, and 1N4151 from Diotec Semiconductor. Verify that alternative manufacturers' equivalents meet the 4 ns reverse recovery time and 100 V reverse voltage requirements.
