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Product Detailed Parameters
- Description:DIODE STANDARD 400V 1A DO204AL
- Series:-
- Mfr:Taiwan Semiconductor Corporation
- Package:Tape & Reel (TR)
- Technology:Standard
- Voltage - DC Reverse (Vr) (Max):400 V
- Current - Average Rectified (Io):1A
- Voltage - Forward (Vf) (Max) @ If:1.3 V @ 1 A
- Speed:Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):500 ns
- Current - Reverse Leakage @ Vr:5 µA @ 400 V
- Capacitance @ Vr, F:15pF @ 4V, 1MHz
- Mounting Type:Through Hole
- Package / Case:DO-204AL, DO-41, Axial
- Supplier Device Package:DO-204AL (DO-41)
- Operating Temperature - Junction:150°C
- Grade:-
- Qualification:-
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Overview
The BA157G-K is a glass passivated fast recovery rectifier manufactured by Taiwan Semiconductor Corporation. It features a standard current rating of 1A and a maximum repetitive peak reverse voltage of 400V. The device utilizes a DO-204AL (DO-41) axial leaded package for through-hole mounting. Key electrical characteristics include a maximum average forward rectified current of 1A at 130°C and a maximum non-repetitive peak surge current of 30A. The component is designed for high-speed switching applications with a typical reverse recovery time of 500ns.
Feature Summary
- Glass passivation provides mechanical strength and protection against moisture and chemical damage
- Fast recovery characteristics enable efficient operation in high-frequency switching circuits
- Axial leaded construction facilitates automated insertion and robust PCB mounting
Applications
- High frequency rectification in power supply units
- Free wheeling diodes in DC-DC converters
- Snubber circuits in inductive load switching
Procurement Notes
Verify the specific suffix code, such as A0G or R0G, to confirm packaging type and reel specifications. Ensure the order matches the required voltage rating of 400V. Confirm compliance with RoHS directives if applicable. Check manufacturer datasheets for storage temperature limits and soldering profiles before integration into production lines.
Selection Notes
Select this component when a 400V blocking capability and 1A continuous current are required. The 500ns reverse recovery time suits moderate to high frequency applications. Compare thermal resistance values against heat sink capabilities. Ensure the DO-204AL footprint aligns with existing board layouts and clearance requirements.
Part Context
This part belongs to the BA157G-K through BA159G-K series of glass passivated fast recovery rectifiers. The series offers varying voltage ratings from 400V to 1000V while maintaining a consistent 1A current capacity. These devices are engineered for reliability in industrial and consumer electronics environments requiring durable semiconductor solutions.
Replacement Considerations
Compatible substitutes within the same series include BA158G-K (600V) and BA159G-K (1000V), provided higher voltage ratings are acceptable. Verify that alternative components match the 1A current rating and DO-204AL package dimensions for direct pin-to-pin replacement.
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