| 摘要 |
A connector, which can have impedance matching between the connector and a cable or a mating connector even if the connector is miniaturized, and a manufacturing method thereof are provided. The connector is joined with an end of a cable 5 . The connector has terminals, and a holder having an inner holder holding the terminals and an inner housing. The mating connector has terminals, and a holder holding the terminals. The holders are made of a foamed synthetic resin. Expansion ratio of the resin for the holder of the connector is adjusted to match the impedance with each wire of the cable 5 . Expansion ratio of the resin for the holder of the mating connector is adjusted to match the impedance with the connector.
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