The Hirose HSC-PH2-A2(72) is a simplex plug from the HSC series, designed for single-fiber optical connections in a free-hanging (in-line) mounting configuration. The Advanced PC Polished finish on the ferrule end-face delivers low insertion loss and back reflection typical of physical-contact fiber interfaces.
The core diameter accepts both 9.5 µm (single-mode) and 50 µm (multimode) fibers with a standard 125 µm cladding, so this plug works with either fiber type — the ferrule bore is sized for the 125 µm cladding common to both. The operating range of -25°C to 70°C covers indoor telecom, industrial cabinet, and outdoor-adjacent enclosures without needing a sealed connector body. The UL94 V-0 rated housing means it can go into equipment that requires a non-flammable plastic enclosure. The purple boot color and built-in strain relief are visual and mechanical cues that this is a standard simplex plug — the boot grips the 2.0 mm cable jacket and the strain relief takes the pull load off the ferrule-to-fiber bond.