Product Identity and Series Position
The 57102-G06-20ULF is the fully loaded 40-circuit member of the Amphenol FCI Minitek® 2.00mm board-to-board header series — a dual-row, 0.079 inch (2.00mm) pitch male pin header with through-hole push-pull termination. All 40 positions are populated, which is the maximum circuit count this series supports at this pitch and row spacing. The connector is designed for board-to-board stacking in compact internal interconnect applications where z-height budget and routing density are constraints. The contact system uses a square pin shape on the male side and a dual-beam female counterpart (implied by the Minitek 2.00mm series geometry). The push-pull fastening type provides positive retention without a tool — the header plugs into the receptacle and the friction-fit housing holds it in place during board assembly and vibration.
Contact Plating and Electrical Ratings
The 57102-G06-20ULF uses a mixed plating finish: gold GXT™ on the mating contact face at 30.0 µin (0.76 µm), and tin on the solder post side at 78.7 µin (2.00 µm). Gold GXT is a hard gold alloy suited for multiple mating cycles — it resists fretting and surface degradation better than pure soft gold. The tin plating on the tail side optimises solderability and wetting during through-hole reflow or hand assembly. Rated current is 2A AC/DC per contact and rated voltage is 200V AC/DC. The contact material is copper alloy. At 2A per circuit this header is suited for signal and low-power distribution within the board stack — it is not a power delivery connector at this current density and pitch; for higher current the circuit count and contact size would need to be verified against the de-rating curve for the mated assembly.
Mating and Termination
The 57102-G06-20ULF mates with the matching Minitek 2.00mm dual-row female receptacle housing in the same series. The male header's square pin seats into the dual-beam female contact; the push-pull housing on the header side mates with the latch or friction feature on the receptacle. The connector is unshrouded, so keying protection between header and receptacle relies on the housing geometry — verify the polarisation features match before pairing. Termination is through-hole solder. The post length of 0.098 inch (2.50mm) accommodates standard PCB thickness — verify against your board's plated-through hole depth for adequate solder fill. The tube package indicates bulk packaging for through-hole assembly; there is no SMT variant listed for this specific order code.