The 1-640520-0 is a 6-position 3-row Miniature Rectangular Connector with tin-plated contacts and UL94V-0 brick red nylon housing. Housings positively lock to help prevent accidental disengagement. Either cap or plug housing can be mounted in same rectangular panel cut-out without additional hardware. Plug and cap design includes moulded-in polarizing feature for proper mating. Numbered cavities for easy circuit identification. Egg crate design of plug half fully encloses socket contacts, reducing shock hazard. Moulded skirt extension on cap protects pin contacts. Strain reliefs for 6 through 36 positions are available. Socket solder tail contacts available for hot side PC board mounting. High density achieved through 4.19mm contact centreline spacing. Contacts accept 26 to 18AWG (0.12 to 0.8 mm²) wire sizes and insulation diameters of 0.635 to 2.92mm.