This compact (33.7 x 22.2 x 15mm) PCB power supply from Mean Well has an output voltage of 3.3VDC with a maximum current of 0.3A (1W). The fully cast housing insulates and protects the power supply completely for external influences. The power supply can be connected to mains voltage and has a long service life (5G vibration test, EMI filtering, <0.075W no-load power).