... and cabbies. If the diameter, amount and distributing location of contact pairs are the same, it could be used to replace ... series: X series small circular connectors 2. Shell size: 143. Type of contacts: J-pin, K-socket 4. Sign of contacts: numbers ... , A-normal receptacle, M-sealed receptacle 6. P-plug, A-socket/jack/receptacle7. J-Au plated, without J: Ag plated