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1N4933G
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Product Detailed Parameters
- Description：DIODE STANDARD 50V 1A AXIAL
- Series：-
- Mfr：onsemi
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：50 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：300 ns
- Current - Reverse Leakage @ Vr：5 µA @ 50 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：Axial
- Operating Temperature - Junction：-65°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The onsemi 1N4933G is an axial-lead, glass-passivated fast recovery rectifier designed for high-efficiency switching applications. It features a single silicon element with a maximum average forward current of 1.0 A and a peak repetitive reverse voltage of 50 V. The device exhibits a typical reverse recovery time of 150 ns, enabling operation at frequencies up to 250 kHz. Electrical characteristics include a maximum instantaneous forward voltage of 1.2 V at 150°C junction temperature and a maximum non-repetitive peak surge current of 30 A. Operating temperatures range from -65°C to +150°C.
Feature Summary
- Glass-passivated junction structure ensures high reliability and low leakage current
- Fast recovery characteristics provide high efficiency in high-frequency circuits
- High forward surge capability supports demanding load conditions
Applications
- DC power supplies
- Inverters and converters
- Ultrasonic systems
- Choppers
- Free wheeling diodes
Procurement Notes
Verify the specific ordering suffix to confirm packaging configuration. The 'G' suffix indicates Pb-Free status, while 'RL' denotes tape and reel shipping. Confirm that the component meets RoHS Directive 2002/95/EC requirements if applicable to your manufacturing standards. Ensure compatibility with MIL-S-19500 environmental standards for critical deployments.
Selection Notes
Select this component when a 50 V blocking voltage and 1.0 A continuous current rating are required. The 150 ns reverse recovery time makes it suitable for switching frequencies up to 250 kHz. Consider the DO-41 (Case 59-10) package constraints for thermal management and mechanical mounting. Verify derating requirements for capacitive loads, which necessitate a 20% reduction in average forward current.
Part Context
This part belongs to the 1N493x series of fast recovery rectifiers manufactured by onsemi. The series includes variants with different voltage ratings: 1N4934 (100 V), 1N4935 (200 V), 1N4936 (400 V), and 1N4937 (600 V). All share identical current ratings and package dimensions, differing primarily in their peak repetitive reverse voltage specifications.
Replacement Considerations
Cross-reference with other manufacturers' 1N4933 equivalents. Verify that substitute parts meet the same 150 ns reverse recovery time and 1.0 A current ratings. Ensure the replacement maintains the axial lead package style for direct board compatibility.
