PCB-mount AC/DC power supplies

PCB-mount AC/DC power supplies are compact modules designed for direct soldering onto printed circuit boards (in SIP/DIP packages) that convert mains voltage into stable direct current (DC) directly on the printed circuit board (PCB). Their small size and low-profile design facilitate integration into embedded devices, offering high efficiency, low output ripple, and primary-to-secondary isolation for enhanced safety.

Key Advantages

Direct PCB mounting using standard SIP/DIP pins and footprints for easy integration.
Miniature form factor and low profile to save space.
Wide input voltage range (universal AC input and DC input options) with stable regulation.
High efficiency and low standby power consumption.
Electrical isolation and creepage and clearance distances in accordance with applicable standards.
Protection against overload, overvoltage, and short circuits.

Typical Applications

IoT and embedded devices.
Home automation, smart home systems, and security.
Telecommunications and low-power network electronics.
Instrumentation and measurement equipment.
Consumer electronics and small household appliances.
Meters, sensors, and compact gateways.

Certifications and Compliance

PCB-mount AC/DC power supplies are designed to meet international electrical safety and electromagnetic compatibility (EMC) standards, with applicable approvals and requirements such as CE, UL, and RoHS depending on the model. Specific models may offer low leakage current or compliance with additional standards depending on the intended application.

Design Best Practices

Maintain the required safety clearances and creepage distances on the PCB to ensure adequate electrical insulation.
Optimize heat dissipation using copper areas and thermal paths; apply appropriate derating based on operating temperature.
Maintain a clean power-loop layout and implement EMI filtering in accordance with the datasheet recommendations.
Verify the fuse, input protection, and proper grounding.