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1N4937 BK PBFREE
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Product Detailed Parameters
- Description：DIODE STANDARD 600V 1A DO41
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- 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：-
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-41
- Operating Temperature - Junction：-
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp 1N4937 BK PBFREE is a glass passivated fast recovery rectifier diode housed in a DO-41 package. It features a maximum repetitive peak reverse voltage of 600 V and a continuous forward current rating of 1.0 A at 75°C. The device exhibits a maximum forward voltage of 1.2 V, a peak non-repetitive surge current capability of 30 A, and a maximum reverse leakage current of 5.0 µA at rated voltage. Its peak reverse recovery time for the 600 V variant is specified as 200 ns.
Feature Summary
- Glass passivated chip construction for enhanced stability
- Fast switching characteristics suitable for high efficiency applications
- High forward surge current capability
- Low leakage current performance
Applications
- Fast switching rectification in power supplies
- Inverter circuits
- Converter topologies
- Freewheeling diode applications
Procurement Notes
Verify component status before procurement as this series has been transitioned to End of Life (EOL) status by the manufacturer. Confirm availability with authorized distributors or suppliers, noting that minimum order quantities may apply. Check for alternative sourcing options if standard supply channels are depleted due to discontinued production.
Selection Notes
Select this component for general-purpose fast recovery rectification requiring a 600 V blocking voltage and 1 A current handling. Ensure the application operates within the specified temperature range and does not exceed the 30 A surge current limit. Verify compatibility with through-hole mounting requirements associated with the DO-41 case style.
Part Context
This part belongs to the 1N493x series of fast switching plastic rectifiers from Central Semiconductor. These devices utilize void-free molded plastic techniques and are designed for operation at ambient temperatures up to 75°C without thermal runaway. The series covers reverse voltages from 50 V to 600 V, providing standardized solutions for various rectification needs.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. The manufacturer indicates no direct replacement is listed for this specific item in their portfolio management notice.
