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Product Detailed Parameters
- Description：DIODE STD 660V 1.2A A SQMELF
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：660 V
- Current - Average Rectified (Io)：1.2A
- Voltage - Forward (Vf) (Max) @ If：1.4 V @ 1.2 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：45 ns
- Current - Reverse Leakage @ Vr：500 nA @ 660 V
- Capacitance @ Vr, F：-
- Mounting Type：Surface Mount
- Package / Case：SQ-MELF, A
- Supplier Device Package：A, SQ-MELF
- Operating Temperature - Junction：-65°C ~ 150°C
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Overview
The Microchip Technology 1N6622U/TR is a single ultra-fast recovery rectifier designed for surface-mount applications. It features a reverse voltage rating of 660 V and an average forward current capacity of 2 A. The device exhibits a maximum forward voltage drop of 1.6 V at rated current and supports a peak repetitive surge current of 3.5 A. Key electrical characteristics include a reverse leakage current of 500 nA and a fast recovery time of 45 ns. It operates within a junction temperature range of -65°C to +150°C.
Feature Summary
- Ultra-fast recovery performance with 45 ns switching speed
- High thermal stability supporting operation up to +150°C
- Robust construction with 660 V reverse voltage blocking capability
Applications
- High-frequency power supply circuits
- Free-wheeling diode applications in DC-DC converters
- Snubber circuits requiring rapid recovery characteristics
Procurement Notes
Verify the specific suffix 'U/TR' against official Microchip documentation to confirm surface-mount packaging and tape-and-reel delivery format. Ensure the component meets the required 660V reverse voltage specification for your circuit design. Cross-reference datasheet revisions to confirm compliance with current environmental standards before procurement.
Selection Notes
Select this component when high-speed switching is critical and surface-mount integration is required. Compare the 45 ns recovery time against standard rectifiers to ensure compatibility with high-frequency topologies. Verify that the 2 A current rating aligns with the load requirements and that the 660 V breakdown voltage provides sufficient margin for transient voltages.
Part Context
This part belongs to the 1N66xx series of rectifiers manufactured by Microchip Technology. It serves as a specialized variant optimized for surface-mount technology, differing from through-hole equivalents like the 1N6622. The series is engineered for reliable performance in demanding power conversion environments.
Replacement Considerations
Direct substitutes must match the 660V/2A rating and ultra-fast recovery profile. Verify pinout compatibility for surface-mount packages. Consult Microchip's official substitution guides for qualified alternatives.
