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Product Detailed Parameters
- Description：DIODE SCHOTTKY 30V 3A AXIAL
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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-201AA, DO-27, Axial
- Supplier Device Package：Axial
- Operating Temperature - Junction：-65°C ~ 125°C
- Grade：-
- Qualification：-
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Overview
The onsemi 1N5821RLG is a Schottky barrier rectifier utilizing chrome barrier metal and epitaxial construction. It provides an average rectified forward current of 3.0 A with a peak repetitive reverse voltage of 30 V. The device features a maximum instantaneous forward voltage of 0.500 V at 3.0 A and a non-repetitive peak surge current rating of 80 A. Packaged in the DO-201AD axial lead case, it operates within a junction temperature range of -65°C to +125°C.
Feature Summary
- Majority carrier conduction eliminates minority stored charge transients for fast switching
- Low forward voltage drop reduces power loss and increases efficiency
- High thermal stability supports operation up to 125°C junction temperature
Applications
- Low-voltage high-frequency inverters
- Free wheeling diodes
- Polarity protection circuits
Procurement Notes
Verify the 'RLG' suffix confirms tape and reel packaging containing 1500 units per reel and Pb-Free status. Confirm the specific part number matches the 30V rating variant rather than the 20V or 40V versions within the same series. Ensure compliance with RoHS directives if required by the application environment.
Selection Notes
Select this component when low forward voltage and high efficiency are critical for power conversion. The 30V rating suits applications requiring moderate blocking voltage. Consider thermal resistance values for heatsinking requirements. Verify that the 3.0A continuous current rating aligns with the circuit's load demands under expected ambient temperatures.
Part Context
This device belongs to the 1N582x series of axial lead rectifiers manufactured by onsemi. The series includes variants with different voltage ratings: 1N5820 (20V), 1N5821 (30V), and 1N5822 (40V). All share identical current ratings and physical package dimensions, differing primarily in their reverse voltage capabilities.
Replacement Considerations
Compatible substitutes include 1N5820 and 1N5822 from onsemi, provided voltage ratings meet circuit requirements. Other manufacturers producing JEDEC-standard 1N5821 devices may serve as replacements if electrical parameters match.
