商品描述: TT ELECTRONICS / OPTEK TECHNOLOGY - OPB973N51 - Transmissive Photo Interrupter, Open Collector, Through Hole, 3.18 mm, 1.27 mm, 40 mA, 2 V TT ELECTRONICS / OPTEK TECHNOLOGY - OPB973N51 - Transmissive Photo Interrupter, Open Collector, Through Hole, 3.18 mm, 1.27 mm, 40 mA, 2 V