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1N4933RL
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Product Detailed Parameters
- Description：DIODE STANDARD 50V 1A AXIAL
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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 1N4933RL is an axial-lead fast-recovery rectifier diode designed for high-efficiency applications. It features a single silicon element with a maximum average rectified 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, supporting frequencies up to 250 kHz. Electrical characteristics include a maximum instantaneous forward voltage of 1.2 V at 150°C and a non-repetitive peak surge current capability of 30 A. Operating junction temperatures range from -65°C to +150°C.
Feature Summary
- Fast recovery design optimized for high efficiency in switching applications
- Robust construction with epoxy molded case and corrosion-resistant terminals
- Capable of handling high surge currents under rated 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 'RL' designation indicates availability in tape and reel format, distinct from bag packaging. Confirm RoHS compliance status and lead-free specifications against the latest manufacturer documentation before finalizing procurement orders.
Selection Notes
Select this component when a 50 V reverse voltage rating and 1.0 A continuous current are required. Ensure the application frequency aligns with the 150 ns reverse recovery characteristic. Verify thermal management requirements against the specified junction-to-ambient thermal resistance and derating curves for capacitive loads.
Part Context
This part belongs to the 1N493x series of axial-lead fast-recovery rectifiers manufactured by onsemi. The series covers voltage ratings from 50 V to 600 V, sharing common mechanical dimensions and electrical performance profiles. The 1N4933 variant specifically addresses low-voltage, high-speed rectification needs within this product family.
Replacement Considerations
Cross-reference with other manufacturers offering DO-41 packaged fast-recovery diodes with matching 50 V and 1.0 A ratings. Verify pinout polarity and physical dimensions to ensure compatibility with existing PCB layouts.
