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Product Detailed Parameters
- Description：DIODE STANDARD 400V 15A TO257
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：15A
- Voltage - Forward (Vf) (Max) @ If：1.6 V @ 15 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：60 ns
- Current - Reverse Leakage @ Vr：10 µA @ 320 V
- Capacitance @ Vr, F：300pF @ 5V, 1MHz
- Mounting Type：Through Hole
- Package / Case：TO-257-3
- Supplier Device Package：TO-257
- Operating Temperature - Junction：150°C (Max)
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Overview
The Microchip Technology 1N6778 is a hermetic ultra-fast power rectifier diode designed for high-reliability applications. It features a 400V reverse voltage rating and a continuous forward current capacity of 15A. The device utilizes a TO-257AA package, which provides a robust hermetic seal suitable for harsh environments. Key electrical characteristics include a maximum reverse recovery time of 60ns, ensuring efficient switching performance in high-frequency circuits.
Feature Summary
- Hermetic sealing in TO-257AA package for environmental protection
- Ultra-fast switching capability with 60ns reverse recovery time
- High current handling rated at 15A continuous forward current
Applications
- High-reliability aerospace power systems
- Military-grade electronic equipment
- Industrial power conversion units requiring hermetic seals
Procurement Notes
Verify the manufacturer datasheet to confirm the specific voltage and package variants available for the 1N6778 part number. Ensure that the procurement source provides documentation confirming the hermetic nature of the TO-257AA package, as this is critical for its intended high-reliability applications.
Selection Notes
Select the 1N6778 when a hermetically sealed ultra-fast rectifier is required for 400V applications. Compare it against the 1N6779 if a higher voltage rating of 600V is needed instead. Consider the TO-257AA package constraints for mounting and thermal management in your design.
Part Context
The 1N6778 belongs to a series of ultra-fast power rectifiers from Microchip Technology, often grouped with similar parts like the 1N6779. These components are distinguished by their hermetic construction and fast recovery times, targeting sectors where standard plastic-packaged diodes would fail due to environmental exposure or speed requirements.
Replacement Considerations
The 1N6779 is a related component in the same series but offers a 600V rating instead of 400V. Verify pinout compatibility and thermal characteristics before substituting. No other direct public substitutes are confirmed.
