DF36-20S-0.4V(52) from Hirose Electric Co Ltd is a 20-position rectangular receptacle designed for compact board-to-wire interconnect applications where fine pitch, secure retention, and SMT assembly are important. With a 0.40 mm mating pitch, single-row format, friction lock fastening, and solder retention feature, it fits dense portable and embedded designs such as industrial controllers, consumer electronics, compact modules, and cable-to-board interfaces. The LCP halogen-free housing, UL94 V-0 flammability rating, gold-plated contacts, and -35°C to 85°C operating range support reliable use in space-constrained assemblies. Based on the provided specifications, the manufacturer status is Active, which is favorable for ongoing procurement, although lifecycle planning should still be verified through official manufacturer channels. RoHS compliance information is not explicitly provided in the supplied data, so engineers should confirm current EU RoHS and REACH status using the latest manufacturer documentation before release to production or regulated markets.