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1525 16 channel relay products are offered for sale by suppliers on Alibaba.com, of which other electronic components accounts for 6%, power relays (over 2 amps) accounts for 1%, and integrated circuits (old) accounts for 1%. A wide variety of 16 channel relay options are available to you, You can also choose from plastic, aluminum and not applicable 16 channel relay,as well as from through hole, surface mount, and smd/smt 16 channel relay,And whether 16 channel relay is logic level gate, {2}, or {3}.