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Product Detailed Parameters
- Description：DIODE STANDARD 1000V 3A B SQMELF
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：1000 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 9 A
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：2 µs
- Current - Reverse Leakage @ Vr：1 µA @ 1000 V
- Capacitance @ Vr, F：-
- Mounting Type：Surface Mount
- Package / Case：SQ-MELF, B
- Supplier Device Package：B, SQ-MELF
- Operating Temperature - Junction：-65°C ~ 175°C
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Overview
The Microchip Technology 1N5554US is a silicon standard recovery rectifier designed for surface-mount applications. It features a single diode configuration housed in the B-SQ-MELF-2 package. The device supports a maximum repetitive reverse voltage of 1 kV and an average forward current of 3 A. Key electrical characteristics include a maximum forward voltage of 1.3 V, a peak non-repetitive surge current capability of 100 A, and a reverse leakage current of 1 uA at rated voltage. The component operates within a junction temperature range of -65°C to +175°C.
Feature Summary
- Surface-mount construction utilizing the B-SQ-MELF-2 package format
- High thermal stability with extended operating temperature limits
- Robust surge current handling capability for transient protection
Applications
- General-purpose rectification in industrial power supplies
- High-temperature electronic circuit designs
- Automotive electronics requiring ruggedized components
Procurement Notes
Verify the specific suffix requirements against the official datasheet before ordering, as packaging and screening levels may vary. Confirm that the selected variant meets all necessary environmental and reliability standards for the intended application. Ensure compatibility with existing surface-mount assembly processes and equipment specifications.
Selection Notes
Select this component when a surface-mount standard recovery rectifier is required for high-voltage applications. Consider the B-SQ-MELF-2 package constraints regarding board space and thermal management. Evaluate the 1 kV reverse voltage rating against peak circuit voltages to ensure adequate safety margins under all operating conditions.
Part Context
This part belongs to the 1N555x series of silicon rectifiers manufactured by Microchip Technology. The series includes various voltage ratings and package options, such as axial leaded and surface-mount configurations. These devices are commonly used in general-purpose power conversion circuits where reliable rectification is essential.
Replacement Considerations
The 1N5554US is functionally related to the through-hole 1N5554 variant. Verify pinout compatibility and package dimensions if substituting between surface-mount and axial versions. Consult official documentation for any differences in thermal performance or mechanical mounting requirements.
