PC817B/PC817C PC817B/PC817C/PC817D PC817B/PC817X2 PC817B/PC817X2NIP0F PC817B/PC817X2NIP1B PC817B/PC817X2NIPOF PC817B/PC817X2NSZ9F PC817B/PC817X2NSZ9F/NSZ2B(B) PC817B/PC817X2NSZW PC817B-1