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Product Detailed Parameters
- Description：DIODE STANDARD 200V 3A B SQMELF
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：200 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 @ 200 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 1N5550US/TR is a single standard recovery rectifier designed for surface-mount applications. It features a maximum repetitive reverse voltage of 200 V and an average forward rectified current of 5 A. The device exhibits a maximum forward voltage drop of 1.2 V at rated current and a low reverse leakage current of 1 uA. It supports a maximum surge current of 100 A and operates within a junction temperature range from -65 °C to +175 °C. The component utilizes a B-SQ-MELF-2 package and provides a typical reverse recovery time of 2 us.
Feature Summary
- Surface-mount construction in a compact B-SQ-MELF-2 package
- High thermal stability with operation up to +175 °C
- Robust surge handling capability for transient protection
Applications
- General-purpose rectification in power supply circuits
- Reverse polarity protection in electronic systems
- DC output rectification in industrial equipment
Procurement Notes
Verify the specific suffix TR against official Microchip documentation to confirm tape-and-reel packaging configuration. Ensure the part number matches the exact electrical specifications required for your design, as variations exist within the 1N5550 family. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance status or recommended soldering profiles prior to procurement.
Selection Notes
Select this component when a surface-mount solution is required for high-current rectification tasks. The 5 A rating distinguishes it from lower-current variants in the same series. Consider the B-SQ-MELF-2 footprint compatibility during PCB layout. Evaluate the thermal management requirements given the high operating temperature limit and the specific package's heat dissipation characteristics.
Part Context
This part belongs to the 1N5550 series of standard recovery rectifiers manufactured by Microchip Technology. It serves as the surface-mount equivalent to through-hole axial packages like the 1N5550. The US suffix typically denotes the specific surface-mount variant within the product line, offering similar electrical performance in a form factor suitable for automated assembly processes.
Replacement Considerations
Direct substitutes include other 1N5550 series surface-mount diodes from different manufacturers, provided they match the 200 V reverse voltage, 5 A current rating, and B-SQ-MELF-2 package dimensions.
