The Hirose LF10WBR-4P is a 4-position circular receptacle with male pins, part of the LF series. It carries a shell size 10 insert, gold-plated mating contacts at 8.00µin thickness, and a bayonet lock for quick quarter-turn mating. Rated 10 A per contact at 125 VAC/DC, it handles sensor power and signal lines in industrial and telecom cabling where water ingress is a real risk.
Sealing and Mounting Reality
The IP67/IP68 rating means the mated pair survives temporary submersion — the O-ring seals at the panel face, not the threads. The bulkhead - rear side nut mounting lets you install the receptacle from outside the enclosure and tighten the nut from behind, which keeps the panel gasket compressed evenly. The bayonet lock gives a positive mechanical mate that won't back off under vibration the way a push-pull can. Solder cup termination means field wiring with a soldering iron — no crimp tool required, but each of the 4 contacts gets individually soldered, so assembly time is higher than a crimp-and-insert design.
Comparing the 4-Position Male to Its Siblings
The LF10WBR-4P is the 4-position male-pin version. Its counterpart, the LF10WBR-4S, is the same shell size 10, same 10 A rating, same IP67 seal — but with female sockets instead of male pins. If your harness terminates in a female plug, the LF10WBR-4S is the panel-mount match. The LF10WBR-12P shares the same shell size 10 but packs 12 positions, which drops the per-contact current to 2 A and the voltage to 30 VAC / 42 VDC — the pin density trades power capacity for more signal lines in the same panel cutout.