DF3E-3P-2H(54) from Hirose Electric Co Ltd is a 3-position rectangular header in the DF3 series designed for compact board-to-board or cable connection tasks in space-conscious electronic assemblies. With a 2.00 mm pitch, right-angle surface-mount form factor, shrouded 4-wall construction, and features such as board guide and solder retention, it is well suited for control boards, industrial electronics, consumer devices, power modules, and compact embedded systems that need reliable interconnect performance. The connector uses brass contacts with gold finish and a polyamide/nylon housing rated UL94 V-0, supporting demanding operating environments from -55°C to 105°C. Lifecycle status is currently listed as unknown, so engineers should verify long-term availability with Hirose or an authorized source before locking it into new designs. RoHS compliance information is not explicitly provided in the supplied specifications; for regulated applications, designers should request the latest manufacturer compliance documentation before production release.