The B0505S-1WR3 is a compact isolated DC-DC converter module designed to provide reliable 5V to 5V power conversion with galvanic isolation. With a 1W output power rating, this module is commonly used to isolate sensitive circuits from noisy power rails and ground loops.
Its SIP-4 through-hole package enables easy PCB integration, making it suitable for both prototype development and volume production in industrial and commercial electronics.
Key Features
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Isolated DC-DC power conversion
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Fixed 5V input / 5V output
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Output power: 1W
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Electrical isolation between input and output
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High reliability and compact form factor
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Low ripple and noise
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Through-hole SIP-4 package
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RoHS compliant
Typical Applications
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Industrial automation systems
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Embedded control electronics
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Sensor signal isolation
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Communication interfaces
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Power isolation for microcontroller circuits
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Data acquisition systems
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Instrumentation equipment
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Ground loop elimination
Electrical Characteristics
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Input Voltage: 5 VDC
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Output Voltage: 5 VDC
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Output Power: 1 W
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Isolation Voltage: 1500 VDC (typical)
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Efficiency: Up to 80%
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Regulation: Unregulated
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Output Type: Single output
Mechanical Specifications
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Package / Case: SIP-4
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Mounting Type: Through-Hole
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Pin Count: 4
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Package Code: PO-1782-D
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Operating Temperature: −40°C to +85°C
Why Use Isolated DC-DC Converters?
Isolated DC-DC converters protect sensitive electronics by electrically separating input and output power domains. The B0505S-1WR3 helps improve system reliability, reduce noise coupling, and protect downstream circuits from voltage spikes and ground potential differences.
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