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1N4446/TR
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 200MA DO204AH
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：75 V
- Current - Average Rectified (Io)：200mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 20 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：4 ns
- Current - Reverse Leakage @ Vr：25 nA @ 20 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Supplier Device Package：DO-204AH (DO-35)
- Operating Temperature - Junction：-65°C ~ 150°C
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Overview
The Microchip Technology 1N4446/TR is a small-signal switching diode housed in a DO-35 axial package. It features a working peak reverse voltage of 75 V and an average rectified forward current of 200 mA. The device exhibits a maximum forward voltage of 1.0 V at 30 mA, with a reverse recovery time of 4 ns and junction capacitance of 4 pF. Operating temperatures range from -65 °C to +150 °C.
Feature Summary
- Hermetically sealed glass construction with metallurgically bonded internal structure
- Very fast switching speeds with minimal reverse recovery times
- Low capacitance design suitable for high-frequency applications
Applications
- High frequency data lines
- RS-232 & RS-422 interface networks
- Ethernet 10 Base T
- Switching core drivers
- Computers
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm compliance status and screening levels. Confirm that the reel packaging matches standard EIA-296 specifications. Ensure the component meets the required environmental and reliability standards before finalizing procurement.
Selection Notes
Select this component for circuits requiring fast switching and low capacitance within a through-hole package. Verify that the 75 V reverse voltage rating accommodates peak line voltages. Ensure the 200 mA forward current capability aligns with the circuit's load requirements.
Part Context
This part belongs to the JEDEC registered 1N4446 series of computer switching diodes. It utilizes a double-plug DO-35 package designed for high-density mounting. The device is manufactured by Microchip Technology and supports various screening options.
Replacement Considerations
Consult official datasheets for parameter-equivalent alternatives such as the 1N4149 or 1N4449. Verify that any substitute maintains the same DO-35 package dimensions and electrical characteristics.
FAQ
What is the reverse recovery time for the 1N4446?
The reverse recovery time is 4 ns.
Is the 1N4446 hermetically sealed?
Yes, it features hermetically sealed glass construction with metallurgical bonding.
