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10Pcs EL814 PC814 Sharp Photo Coupler DIP-4 vg

10Pcs LTV-814 LTV814 DIP4 ( The Same As PC814 ) Photocoupler vs

20Pcs LTV-814 LTV814 DIP4 Photocoupler vc

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50Pcs ITR9606 ITR-9606 DIP-4 Opto Switch Coupler Everlight Trough Type Sensor ku