The Claf Power DFS1-B0509 is a compact and reliable 1W isolated DC/DC converter designed to deliver efficient and stable power conversion for industrial, communication, instrumentation, and embedded electronic applications. Operating from a fixed 5V DC input, the converter provides a regulated 9V DC output, making it suitable for powering analog circuits, sensors, signal conditioning circuits, communication modules, and other electronic devices requiring isolated 9V power.

Built using advanced switching technology, the DFS1-B0509 offers high conversion efficiency, excellent line and load regulation, and low ripple and noise to ensure reliable operation of sensitive electronic circuits. The converter incorporates 1500VDC galvanic isolation between the input and output, protecting connected equipment from voltage transients, reducing electromagnetic interference (EMI), and eliminating ground loop issues commonly encountered in industrial systems.

For enhanced system reliability, the module features continuous short-circuit protection, allowing safe operation during abnormal output conditions. Its low no-load input current helps reduce standby power consumption while improving the overall efficiency of electronic equipment. The industry-standard SIP package enables quick PCB mounting and seamless integration into compact electronic designs.

Designed to operate over a wide temperature range of -40°C to +105°C, the DFS1-B0509 delivers dependable performance even in demanding industrial environments. It is widely used in industrial automation equipment, embedded controllers, communication systems, instrumentation, IoT devices, monitoring equipment, medical electronics, data acquisition systems, and isolated power supply applications.

With its compact size, industrial-grade reliability, stable regulated output, and long operational life, the DFS1-B0509 is an excellent isolated DC/DC power solution for OEM manufacturers and professional electronic system designers.

Key Features

• 1W isolated DC/DC converter
• Fixed 5V DC input
• Regulated 9V DC output
• High conversion efficiency
• 1500VDC input-to-output isolation
• Continuous short-circuit protection
• Low ripple and noise output
• Excellent line and load regulation
• Low no-load input current
• Industry-standard SIP package
• Operating temperature: -40°C to +105°C
• Compact PCB-mount design
• Industrial-grade reliability
• Easy PCB integration
• Long operational life 

Applications

• Industrial automation systems
• Embedded systems
• Communication equipment
• Instrumentation systems
• Industrial control equipment
• Analog signal conditioning circuits
• Sensor interface circuits
• Data acquisition systems
• IoT devices
• Medical electronics
• Monitoring equipment
• Isolated power supply circuits