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1N4448-T
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 150MA DO35
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：75 V
- Current - Average Rectified (Io)：150mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 100 mA
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- 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：-65°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The 1N4448-T is a fast switching diode manufactured by Diodes Incorporated, utilizing silicon epitaxial planar construction within a DO-35 glass case. It features a peak repetitive reverse voltage of 75 V and an average rectified output current of 150 mA. The device exhibits a maximum forward voltage of 1.0 V at 100 mA and a reverse recovery time of 4.0 ns. Power dissipation is rated at 500 mW with a thermal resistance of 300 °C/W. Operating and storage temperatures range from -65 to +175 °C.
Feature Summary
- Fast switching speed suitable for high-frequency applications
- General purpose rectification capability
- Silicon epitaxial planar construction for reliability
- Lead-free finish compliant with RoHS directives
Applications
- High-speed switching circuits
- General purpose rectification in electronic systems
- Clamping and protection applications
Procurement Notes
Verify the specific ordering suffix '-T' corresponds to the Tape & Reel packaging configuration as documented in the manufacturer's ordering information. Confirm that the DO-35 package dimensions and terminal finishes meet the mechanical requirements of the target assembly process. Ensure compliance with moisture sensitivity level 1 standards during handling.
Selection Notes
Select this component when a fast switching diode with a 75 V reverse voltage rating is required in a through-hole DO-35 package. Consider the 150 mA average current limit and 500 mW power dissipation capabilities for thermal management. The 4.0 ns reverse recovery time makes it suitable for applications requiring rapid transition between conducting and blocking states.
Part Context
This part belongs to the 1N4448 series of fast switching diodes produced by Diodes Incorporated. The 'T' suffix specifically denotes the tape and reel packaging format containing 10,000 units per 13-inch reel. It shares electrical characteristics with the standard 1N4448 but differs in bulk handling and automated placement compatibility due to its reel packaging.
Replacement Considerations
Direct substitutes include other manufacturers' 1N4448 variants in DO-35 packages, such as those from Vishay or onsemi. Verify that replacement parts maintain the same 75 V reverse voltage, 150 mA current rating, and 4.0 ns reverse recovery time specifications.
