DF3EA-2P-2V(21) from Hirose Electric Co Ltd is a 2-position rectangular header designed for board-to-board or cable interconnect applications where compact size, secure mating, and dependable soldered assembly are important. As part of the DF3 series, it uses a 2.00mm pitch, male pin contacts, shrouded 4-wall construction, and push-pull fastening, making it suitable for control boards, compact power distribution, industrial electronics, consumer devices, and embedded systems that need stable signal or low-power connection points. The surface-mount format and solder-retention feature support reliable PCB assembly, while the UL94 V-0 polyamide housing and -55°C to 105°C operating range indicate suitability for demanding environments. The provided part status is Active, which is generally favorable for ongoing design-in and maintenance planning. RoHS compliance information is not explicitly provided in the supplied data, so engineers should verify current RoHS and REACH declarations directly with Hirose or authorized documentation before use in regulated products.