DF Dragonfly Power & Signal Connectors Positronic Dragonfly (DF) Power and Signal Connectors offer high density with size 16, 20, or 22 contacts and current ratings of up to 20A per contact. These miniature power / signal connectors feature PCB mount, panel mount, and cable connections in a small form factor design. They utilize high-reliability, high-retention, and precision-machined contacts that offer up to 10,000 life cycles for a cost-effective solution. Positronic Dragonfly (DF) Power and Signal Connectors are ideal for applications requiring high power density.