FlexLock board-to-board receptacle, 18 circuits, right-angle through-hole
The Amphenol ICC 10164520-R180001LF is an 18-circuit board-to-board receptacle from the FlexLock series, built for parallel-PCB mating with a positive latch lock that holds the pair together without a secondary clip or hardware. The 3.20 mm pitch gives enough room for the 4 A per-circuit rating without crowding the board trace between pads — a practical balance for power distribution within an enclosure. The housing is rated UL94 V-0 and carries a -40°C to 105°C operating range, so it handles the thermal cycle of an industrial cabinet or an automotive interior module without issue. The tin-on-tin contact system — 40.0 µin (1.02 µm) on the mating side — is cost-effective for applications that see a few dozen mating cycles over the product life, typical of a PSU-to-mainboard or control-unit interconnect that stays mated after initial assembly.
What the 4 A rating means in practice
The 4 A per-circuit rating is the continuous current at the connector level.
The latch lock provides a positive hold that resists vibration better than a friction-only fit.
It is ROHS3 compliant, so it clears the regulatory gate for EU-market equipment without an exemption review.