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Product Detailed Parameters
- Description：DIODE SCHOTTKY 30V 3A DO201AD
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Box (TB)
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：30 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：2 mA @ 30 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-201AD, Axial
- Supplier Device Package：DO-201AD
- Operating Temperature - Junction：150°C (Max)
- Grade：-
- Qualification：-
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Overview
The STMicroelectronics 1N5821 is a low drop power Schottky rectifier designed for switch mode power supplies and high frequency DC to DC converters. It features an axial DO-201AD package with a repetitive peak reverse voltage of 30 V and an average forward current rating of 3 A at 100°C. The device exhibits extremely fast switching, negligible switching losses, and avalanche capability specified at 1700 W (tp = 1µs). Key electrical parameters include a maximum forward voltage drop of 0.5 V at 3 A and a surge non-repetitive forward current of 80 A.
Feature Summary
- Extremely fast switching with negligible switching losses
- Low forward voltage drop for very small conduction losses
- Specified avalanche capability for robust operation
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 suffix against the manufacturer's official documentation to confirm packaging details such as base quantity or delivery mode. Confirm RoHS compliance status and environmental certifications directly from the datasheet before procurement. Ensure the selected variant matches the required thermal resistance and junction temperature specifications for the intended application environment.
Selection Notes
Select this component for applications requiring low voltage drop and high efficiency in high frequency environments. Consider the 30 V reverse voltage rating and 3 A average current capacity when designing power stages. Evaluate thermal management requirements based on the specified junction-to-ambient thermal resistance and derating curves for continuous operation.
Part Context
This component belongs to the 1N582x series of low drop power Schottky rectifiers manufactured by STMicroelectronics. The series includes variants with different reverse voltage ratings, specifically 20 V, 30 V, and 40 V. All devices share similar physical characteristics, utilizing the DO-201AD plastic package with an epoxy formulation meeting UL94 V0 flammability standards.
Replacement Considerations
Compatible substitutes within the same series include the 1N5820 (20 V) and 1N5822 (40 V), provided the voltage rating aligns with circuit requirements. Cross-manufacturer equivalents must be verified for matching forward voltage, reverse leakage, and package dimensions.
