DF36C-15P-0.4SD(51) from Hirose Electric Co Ltd is a compact 15-position plug housing designed for fine-pitch wire-to-board interconnect applications where space savings and stable cable retention matter. Built within the DF36 series, it supports discrete wire termination with soldered cable attachment, making it relevant for compact consumer electronics, portable devices, miniature embedded systems, and other densely packed assemblies that require reliable signal connection in a free-hanging cable format. Engineers typically select this type of connector housing for its small 0.40 mm pitch, latch holder fastening, and compatibility with very fine 42-46 AWG wire. Based on the provided data, the lifecycle status is unknown, so design teams should confirm current manufacturer status before committing to long-term production. RoHS compliance information is not explicitly provided in the specifications, so compliance should be treated as information not available pending verification through the official datasheet, manufacturer documentation, or distributor compliance records.