Mini Stack Connector Boardmount Header 3S6 Series 3M Mini Stack Connector Boardmount Header 3S6 Series provides a reliable connection with a simple, time-saving termination process while reducing the required board footprint. The compact form factor allows for 30% more board space than the 3M Mini-Clamp Connectors. It mates with four stacked wiremount connectors in a single action. These connectors are compatible with wire gauges from 30AWG to 22AWG and operate in a -20°C to +85°C temperature range.