Molex KK Series Molex has made a few modifications to mold the KK Series connectors, due to the change in tooling. There is no change in fit, form or function to the actual part. Only the 2-6 position connectors will be affected by this change. Part Numbers Affected 538-09-50-8020 09-50-8020 538-09-50-8021 09-50-8021 538-09-50-8023 09-50-8023 538-09-50-8030 09-50-8030 538-09-50-8031 09-50-8031 538-09-50-8033 09-50-8033 538-09-50-8040 09-50-8040 538-09-50-8041 09-50-8041 538-09-50-8043 09-50-8043 538-09-50-8050 09-50-8050 538-09-50-8051 09-50-8051 538-09-50-8053 09-50-8053 538-09-50-8060 09-50-8060 538-09-50-8061 09-50-8061 538-09-50-8063 09-50-8063 538-09-50-9030 09-50-9030 538-09-50-9033 09-50-9033 538-09-50-9043 09-50-9043 538-09-50-9044 09-50-9044 538-09-50-9050 09-50-9050 538-09-50-9053 09-50-9053 538-09-50-9060 09-50-9060 538-09-50-9063 09-50-9063 538-41695-2005 41695-2005 538-41695-2021 41695-2021 538-41695-2033 41695-2033 Please contact a Mouser Technical Sales Representative for further information. 5-0713-24