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1N4937G
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Product Detailed Parameters
- Description：DIODE STANDARD 600V 1A DO204AL
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：600 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)：200 ns
- Current - Reverse Leakage @ Vr：5 µA @ 600 V
- Capacitance @ Vr, F：10pF @ 4V, 1MHz
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-204AL (DO-41)
- Operating Temperature - Junction：-55°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The 1N4937G is a fast recovery glass passivated rectifier manufactured by Taiwan Semiconductor. It features a single silicon junction in a DO-41 axial leaded package. Key electrical parameters include a maximum average forward rectified current of 1A and a peak repetitive reverse voltage of 600V. The device exhibits a typical reverse recovery time of 200ns, with a maximum non-repetitive peak forward surge current of 30A. Operating temperatures range from -65°C to +175°C junction temperature.
Feature Summary
- Glass passivation provides mechanical strength and protects against external environmental stresses.
- Fast switching characteristics enable high efficiency in power conversion applications.
- Low leakage current ensures minimal power loss during reverse bias conditions.
Applications
- Fast switching rectification in power supply circuits
- Inverter and converter topologies
- Freewheeling diode applications in consumer electronics
Procurement Notes
Verify the specific manufacturer marking and datasheet revision when sourcing this component. Confirm that the DO-41 package dimensions match your PCB footprint requirements. Ensure the selected variant meets the required thermal management specifications for your intended operating environment.
Selection Notes
Select this component for designs requiring robust fast recovery performance with standard axial mounting. Consider the 600V rating for general-purpose AC/DC conversion tasks. Evaluate the thermal dissipation capabilities within the DO-41 package relative to the expected load currents.
Part Context
This part belongs to the 1N493x series of fast recovery rectifiers. It shares common form factors with other industry-standard diodes but offers specific performance traits defined by Taiwan Semiconductor's manufacturing process. The series is widely used in general-purpose rectification where speed and reliability are prioritized over ultra-fast switching speeds.
Replacement Considerations
Cross-reference with Vishay 1N4937 or onsemi 1N4937RLG for pin-compatible alternatives. Verify that substitute parts meet the same 600V reverse voltage and 1A current ratings. Check for equivalent reverse recovery times to ensure circuit timing integrity.
