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Product Detailed Parameters
- Description：DIODE SCHOTTKY 20V 3A B AXIAL
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：20 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 @ 20 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：B, Axial
- Supplier Device Package：B, Axial
- Operating Temperature - Junction：-65°C ~ 125°C
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Overview
The Microchip Technology 1N5820 is a Schottky barrier rectifier diode designed for low-voltage, high-frequency applications. It utilizes a metal-to-silicon power diode structure with epitaxial construction and oxide passivation. The device features a chrome barrier metal and metal overlap contact to ensure reliable performance. It is housed in a DO-27 axial leaded plastic package, which carries UL recognition (94V-0). The component is engineered for high current capability and low forward voltage drop, making it suitable for efficient power conversion systems.
Feature Summary
- Employs Schottky Barrier principle using large area metal-to-silicon junction
- Features epitaxial construction with oxide passivation and metal overlap contact
- Utilizes chrome barrier metal technology for enhanced reliability
- Plastic package material carries UL recognition 94V-0
Applications
- Low-voltage, high-frequency inverters
- Free wheeling diodes
- Polarity protection circuits
Procurement Notes
Verify the specific manufacturer suffix when sourcing, as the base part number may be produced by various vendors including Diotec, Vishay, or Rectron. Confirm RoHS compliance status, as some variants like the 1N5820G are lead-free while others may not be. Ensure the package type matches the required DO-27 form factor for through-hole mounting.
Selection Notes
Select this component for designs requiring a standard 3A Schottky rectifier with a 20V reverse voltage rating. Consider the low forward voltage drop characteristic for improved efficiency in synchronous rectification or low-dropout scenarios. Verify thermal management requirements based on the ambient operating temperature range of -65°C to 125°C.
Part Context
This component belongs to the 1N58xx series of Schottky barrier rectifiers, widely used in general-purpose power supply applications. It serves as a fundamental discrete semiconductor device for converting AC to DC or blocking reverse currents in DC circuits. The series is characterized by its robustness and compatibility with standard axial leaded PCB footprints.
Replacement Considerations
Direct substitutes include the 1N5820G (lead-free variant) and equivalents from other manufacturers such as Diotec Semiconductor or Rectron, provided they meet the 20V/3A specification and DO-27 package constraints.
