Connector with short interval arrangements of contacts

A connector comprising:

• a plurality of contact pins;
• an insulator supporting the contact pins in a state arranged in a first direction;
• each of the contact pins comprising a supported portion which extends in a second direction perpendicular to the first direction;
• the insulator comprising a plurality of accommodation portions which accommodate the respective contact pins, the accommodation portions being arranged in the first direction and extending in the second direction, each of the accommodation portions being provided with a supporting portion which supports the supported portion of the corresponding contact pin, the supporting portion including a supporting surface which receives the supported portion of the corresponding contact pin in a third direction perpendicular to the first and the second directions;
• and
• a supplementary insulator extending in the first direction and fixedly held by the insulator, the supplementary insulator pushing at least one part of the supported portion of each of the contact pins to the supporting surface to hold the at least one part of the supported portion between the supporting surface and the supplementary insulator, and the supplementary insulator being partially fitted within the hole, while being in contact with the supported portions of the contact pins,
• the insulator being formed with a hole which extends in the first direction and communicates with the accommodation portions in the third direction.