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Product Detailed Parameters
- Description：DIODE SCHOTTKY 40V 3A B SQ-MELF
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：40 V
- Current - Average Rectified (Io)：3A
- Voltage - Forward (Vf) (Max) @ If：500 mV @ 3 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：100 µA @ 40 V
- Capacitance @ Vr, F：-
- Mounting Type：Surface Mount
- Package / Case：SQ-MELF, B
- Supplier Device Package：B, SQ-MELF
- Operating Temperature - Junction：-65°C ~ 125°C
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Overview
The Microchip Technology 1N5822US is a small-signal Schottky rectifier designed for surface-mount applications. It features a maximum repetitive peak reverse voltage of 40V and an average forward current rating of 3A. The device utilizes Silicon technology and is housed in an SQ-MELF-2 package, also known as D-5B. Key electrical characteristics include a typical forward voltage drop of 0.525V at 3A and a maximum reverse leakage current of 2mA at 40V. It supports a junction temperature range from -65°C to +125°C.
Feature Summary
- Schottky barrier construction for low forward voltage drop and fast switching
- Surface-mount SQ-MELF-2 (D-5B) hermetically sealed ceramic package
- High surge current capability with avalanche capability
Applications
- Switching mode power supplies
- High frequency DC-to-DC converters
- Polarity protection circuits
- Free wheeling diodes
Procurement Notes
Verify the specific suffix 'US' against the manufacturer's official datasheet to confirm package type and qualification level. Ensure the component meets RoHS requirements if applicable to the design. Confirm availability status directly with Microchip Technology or authorized distributors, as production cycles may vary. Cross-reference the Mouser part number 494-1N5822US/TR for accurate ordering details.
Selection Notes
Select this component for designs requiring a robust surface-mount Schottky rectifier with high reliability. The SQ-MELF-2 package offers a compact footprint suitable for space-constrained PCB layouts. Consider the 40V reverse voltage rating and 3A current capacity when designing power stages. Verify thermal management requirements based on the specified junction temperature limits.
Part Context
The 1N5822 series is a family of power Schottky rectifiers widely used in low-voltage, high-frequency inverters and battery chargers. While standard versions often use axial DO-201AD packages, the US variant specifically denotes the surface-mount SQ-MELF-2 configuration. This packaging option provides enhanced mechanical stability and thermal performance compared to traditional through-hole alternatives.
Replacement Considerations
- 1N5822U
- LEO1N5822
FAQ
What is the package type for the 1N5822US?
The 1N5822US is housed in an SQ-MELF-2 package, which is compatible with the industry-standard D-5B footprint.
Is the 1N5822US radiation hardened?
Standard commercial versions are not explicitly radiation hardened. However, related variants like the 1N5822U are ESCC qualified and suitable for space programs with radiation resistance specifications.
