I have a video doorbell system with a faulty power connector, 2pin.
Can you identify these connectors? The pitch is about 2mm.
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It is manufacturer JST, PH family of 2.0mm pitch connectors. Part number for top entry through-hole 4 pin should be B4B-PH-K-S. In case they are SMD (your pic is too bad to tell), then it is B4B-PH-SM4-TB instead.