DF36-15S-0.4V(51) from Hirose Electric Co Ltd is a 15-position rectangular receptacle designed for compact board-to-cable/wire interconnect applications where fine pitch, low profile, and reliable SMT assembly are important. With 0.40 mm mating pitch, friction lock retention, solder termination, and solder retention features, it is well suited for space-constrained consumer electronics, portable devices, display modules, compact industrial equipment, and other densely populated PCB designs. The use of halogen-free LCP insulation and UL94 V-0 material supports designs that prioritize material performance and safety. Its listed active status suggests current production availability, although lifecycle planning should still include periodic manufacturer verification. RoHS compliance information is not explicitly provided in the supplied specifications, so engineers should treat compliance as information not available until confirmed by official Hirose documentation or distributor compliance records. For procurement teams, balanced supply-demand status is positive, but counterfeit exposure in the open market makes authorized sourcing especially important.