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4N28 Original New QTC 6-Pin Dip Optoisolators Output Transistor Vintage Stock | eBay
Major Brands 4N28 Optocoupler, NPN, DC Input 1 Channel Trans with Base DC Output, 10% Transfer Ratio, 6-Pin, PDIP, 1.2V, 4 mm H x 7 mm W x 7.62 mm L (Pack
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