Abstract: An optoelectronic connector assembly having electrical and optical connector parts include housings which can be resiliently engaged and manually disengaged from each other. The electrical connector part housing has a socket receiving cavity therethrough for receiving an optoelectronic transducer. The transducer can be a light emitting element such as a light emitting diode, or can be a light responsive element such as a photodiode. The two housings are engaged by means of a protuberance having an inclined ramp on one of the housings, the other housing having an interlock recess therein so that, when the two housings mate, the inclined ramp operates upon the interlock recess so as to provide for a resilient but positive and firm engagement of the two housings. The optical connector part housing has a pin contact receiving cavity for receiving a fiber optic light guide.