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Product Detailed Parameters
- Description：DIODE SCHOTTKY 20V 1A DO41
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：20 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：450 mV @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：500 µA @ 20 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-41
- Operating Temperature - Junction：150°C (Max)
- Grade：-
- Qualification：-
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Overview
The STMicroelectronics 1N5817RL is an axial power Schottky rectifier housed in a DO-41 package. It features a maximum repetitive peak reverse voltage of 20 V and an average forward current rating of 1 A at a case temperature of 125 °C with a duty cycle of 0.5. The device specifies a maximum forward voltage drop of 0.45 V at 1 A and 25 °C, alongside a surge non-repetitive forward current capability of 25 A for a 10 ms sinusoidal pulse. Thermal resistance from junction to ambient is 100 °C/W with a 10 mm lead length, supporting a maximum operating junction temperature of 150 °C.
Feature Summary
- Extremely fast switching characteristics
- Negligible switching losses
- Very small conduction losses
- Specified avalanche capability
Applications
- Switch Mode Power Supplies
- High frequency DC to DC converters
- Low voltage high frequency inverters
- Free wheeling circuits
- Polarity protection
- Small battery chargers
Procurement Notes
Verify the specific ordering code against the manufacturer's official documentation to confirm the delivery mode. The RL suffix indicates availability in tape and reel packaging with a base quantity of 5000 units. Confirm that the component meets required environmental compliance standards, such as ECOPACK specifications, prior to final procurement decisions.
Selection Notes
Select this component for low voltage applications requiring high efficiency due to its low forward voltage drop. Ensure the circuit design accommodates the specified thermal resistances and maximum junction temperature limits. Verify that the repetitive peak reverse voltage rating aligns with the system's maximum expected reverse voltage conditions.
Part Context
This part belongs to the 1N581x series of low drop power Schottky rectifiers manufactured by STMicroelectronics. The series includes variants with different voltage ratings, specifically the 1N5817, 1N5818, and 1N5819. These devices are designed for general-purpose rectification in power electronics applications where speed and low loss are critical.
Replacement Considerations
Cross-reference with other manufacturers' 1N5817 equivalents. Verify pinout compatibility and ensure that alternative components meet or exceed the 20 V reverse voltage and 1 A forward current specifications documented in the official datasheet.
FAQ
What is the maximum operating junction temperature?
The maximum operating junction temperature is 150 °C.
Does the device support avalanche operation?
Yes, the datasheet specifies avalanche capability for the device.
