When you are looking at FFC Connectors from AVX Corp / Kyocera reel parts that has an A suffix this is a reference for the Quantity of parts in the reel. At times there is also a difference in length of the leader on the part.
For example when looking at part 086210006340800+ is a standard part and it has a 300mm leader. Now part 086210006340800A+ has a 400mm leader on the reel.
Here is a snip from page 2 of the data sheet.
The + suffix is calling out a RoHS compliant part. Parts without a + will not be compliant.
Applicable Part Numbers
478-5454-2-ND 478-5454-1-ND 478-5454-6-ND 478-5455-2-ND 478-5455-1-ND 478-5455-6-ND 478-5456-2-ND 478-5456-1-ND 478-5456-6-ND 478-5536-2-ND 478-5536-1-ND 478-5536-6-ND 478-5462-2-ND 478-5462-1-ND 478-5462-6-ND 478-5461-2-ND 478-5461-1-ND 478-5461-6-ND 478-5465-2-ND 478-5465-1-ND 478-5465-6-ND 478-5598-2-ND 478-5598-1-ND 478-5598-6-ND 478-5466-2-ND 478-5466-1-ND 478-5466-6-ND 046296011931846±ND 1253-1609-2-ND 1253-1609-1-ND 1253-1609-6-ND 1253-1779-2-ND 1253-1779-1-ND 1253-1779-6-ND 478-5458-2-ND 478-5458-1-ND 478-5458-6-ND 478-5459-2-ND 478-5459-1-ND 478-5459-6-ND 478-5467-2-ND 478-5467-1-ND 478-5467-6-ND 1253-1610-2-ND 1253-1610-1-ND 1253-1610-6-ND 478-5600-2-ND 478-5600-1-ND 478-5600-6-ND 478-5457-2-ND 478-5457-1-ND 478-5457-6-ND 478-5464-2-ND 478-5464-1-ND 478-5464-6-ND 478-5535-2-ND 478-5535-1-ND 478-5535-6-ND 478-5601-2-ND 478-5601-1-ND 478-5601-6-ND 478-5460-2-ND 478-5460-1-ND 478-5460-6-ND 046844711002846±ND 046232103015800±ND 046232104103800±ND 046232108015800±ND 046232110015800±ND 046232103103800±ND 046232112015800±ND 046232104015800±ND 046232108103800±ND 046232116015800±ND 046232106103800±ND 046232114103800±ND 046232405103800±ND 046232114015800±ND 086222010101800±ND 046232412008800±ND 046232112103800±ND 046232106015800±ND 046232105102800±ND 478-1972-2-ND 478-1980-2-ND 046232423008800±ND 478-1981-2-ND 478-1973-2-ND 478-1982-2-ND 478-1983-2-ND 478-1984-2-ND 478-1965-2-ND 006200505130000±ND 478-1975-2-ND 046206005000800±ND 046227017100800±ND 006200506130000±ND 046232114102800±ND 478-1976-2-ND 478-1976-1-ND 478-1985-2-ND 478-1985-1-ND 006208508110000±ND 046232116103800±ND 046239012001800±ND 086222024101800±ND 478-1986-2-ND 478-1977-2-ND 478-1987-2-ND 478-1978-2-ND 046239010001800±ND 006208506110000±ND 046227018100800±ND 478-1979-2-ND 478-1958-2-ND 478-1958-1-ND 478-1969-2-ND 046298003000883±ND 006200508130000±ND 046238010010800±ND 478-1966-2-ND 478-1967-2-ND 006208510110000±ND 046232109015800±ND 046238015010800±ND 478-1968-2-ND 006200514230000±ND 046214012010800±ND 478-1971-2-ND 086222030101800±ND 046239014001800±ND 478-1970-2-ND 006200512230000±ND 006200516230000±ND 086210030340800±ND 478-1961-2-ND 046214027000800±ND 478-1960-2-ND 006208512210000±ND 478-1962-2-ND 046240041003800±ND 006200520330000±ND 046214030000829±ND 478-1964-2-ND 006208516210000±ND 046274033000800±ND 046232110103800±ND 046240031003800±ND 046229040002800±ND 478-1959-2-ND 478-1959-1-ND 478-1963-2-ND 478-1963-1-ND 478-1974-2-ND 478-1974-1-ND 046249008000800±ND 478-5463-2-ND 478-5463-1-ND 478-5463-6-ND 04 6293 613 005 829±ND
046288008000846+ 046288008000846+ 046288008000846+ 046288010000846+ 046288010000846+ 046288010000846+ 046288012000846+ 046288012000846+ 046288012000846+ 006200509130000+ 006200509130000+ 006200509130000+ 046288030000846+ 046288030000846+ 046288030000846+ 046288026000846+ 046288026000846+ 046288026000846+ 046288050000846+ 046288050000846+ 046288050000846+ 046240054005800+ 046240054005800+ 046240054005800+ 046288055000846+ 046288055000846+ 046288055000846+ 046296011931846+ 046808607000846+ 046808607000846+ 046808607000846+ 086222020101800+ 086222020101800+ 086222020101800+ 046288016000846+ 046288016000846+ 046288016000846+ 046288020000846+ 046288020000846+ 046288020000846+ 046288060000846+ 046288060000846+ 046288060000846+ 04 6806 012 000 846+ 04 6806 012 000 846+ 04 6806 012 000 846+ 006200510130000+ 006200510130000+ 006200510130000+ 046288015000846+ 046288015000846+ 046288015000846+ 046288040000846+ 046288040000846+ 046288040000846+ 086210033340800A+ 086210033340800A+ 086210033340800A+ 086212033340800A+ 086212033340800A+ 086212033340800A+ 046288024000846+ 046288024000846+ 046288024000846+ 046844711002846+ 046232103015800+ 046232104103800+ 046232108015800+ 046232110015800+ 046232103103800+ 046232112015800+ 046232104015800+ 046232108103800+ 046232116015800+ 046232106103800+ 046232114103800+ 046232405103800+ 046232114015800+ 086222010101800+ 046232412008800+ 046232112103800+ 046232106015800+ 046232105102800+ 046232103103800 046232103015800 046232423008800+ 046232104015800 046232104103800 046232106015800 046232108015800 046232110015800 006200505130000 006200505130000+ 046232108103800 046206005000800+ 046227017100800+ 006200506130000+ 046232114102800+ 046232110103800 046232110103800 046232112015800 046232112015800 006208508110000+ 046232116103800+ 046239012001800+ 086222024101800+ 046232114015800 046232112103800 046232116015800 046232114103800 046239010001800+ 006208506110000+ 046227018100800+ 046232116103800 006208505110000+ 006208505110000+ 006200512230000 046298003000883+ 006200508130000+ 046238010010800+ 006200506130000 006200508130000 006208510110000+ 046232109015800+ 046238015010800+ 006200510130000 006200514230000+ 046214012010800+ 006200516230000 086222030101800+ 046239014001800+ 006200514230000 006200512230000+ 006200516230000+ 086210030340800+ 006208510110000 046214027000800+ 006208508110000 006208512210000+ 006208512210000 046240041003800+ 006200520330000+ 046214030000829+ 006208516210000 006208516210000+ 046274033000800+ 046232110103800+ 046240031003800+ 046229040002800+ 006208506110000 006208506110000 006208514210000 006208514210000 046232106103800 046232106103800 046249008000800+ 046288032000846+ 046288032000846+ 046288032000846+ 04 6293 613 005 829+