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Product Detailed Parameters
- Description：DIODE SCHOTTKY 20V 1A DO41
- Series：-
- Mfr：Diodes Incorporated
- Package：Bulk
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：20 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：750 mV @ 3 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：1 mA @ 20 V
- Capacitance @ Vr, F：110pF @ 4V, 1MHz
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-41
- Operating Temperature - Junction：-65°C ~ 125°C
- Grade：-
- Qualification：-
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Overview
The Diodes Incorporated 1N5817-B is a 1.0A Schottky Barrier Rectifier housed in the DO-41 axial package. It features a peak repetitive reverse voltage of 20V and an average rectified output current of 1.0A at 90°C lead temperature. The device exhibits a maximum forward voltage drop of 0.750V at 1.0A and 0.450V at lower currents, with a non-repetitive peak forward surge current capability of 25A. Operating temperatures range from -65°C to +125°C.
Feature Summary
- Guard ring die construction provides transient protection capabilities
- Low power loss and high efficiency design for improved performance
- High surge and high-current capability with low forward voltage drop
- Lead-free finish compliant with RoHS directives
Applications
- Low-voltage, high-frequency inverters
- Free wheeling circuits
- Polarity protection applications
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging and quantity specifications. Confirm that the component meets all required environmental standards and regulatory compliance for your intended application before finalizing procurement decisions.
Selection Notes
Select this component for applications requiring low forward voltage drop and fast switching characteristics. Ensure the 20V reverse voltage rating aligns with circuit requirements. Verify thermal management needs based on the specified junction-to-ambient thermal resistance values under expected load conditions.
Part Context
This part belongs to the 1N581x series of Schottky barrier rectifiers manufactured by Diodes Incorporated. The series includes variants with different voltage ratings, such as the 1N5818 (30V) and 1N5819 (40V), sharing similar mechanical and electrical characteristics within the DO-41 package family.
Replacement Considerations
Direct substitutes include the 1N5817-T and other generic 1N5817 equivalents from various manufacturers. Verify pinout compatibility and ensure replacement parts meet the same voltage, current, and thermal specifications.
FAQ
What is the typical total capacitance of the 1N5817-B?
The typical total capacitance is 110 pF, measured at 1.0MHz and an applied reverse voltage of 4.0V DC.
How is polarity indicated on the component?
Polarity is indicated by a cathode band marking on the plastic package body.
