It uses a 0.156" (3.96 mm) pitch and carries a 10 A per circuit rating at 250 V, with the current figure representing the per-contact limit before the temperature rise of the PA66 insulator becomes the constraint.
Tin-lead plating on both the mating contact and the solder post is the standard finish for this series. The tin-lead surface is adequate for the 10 A duty and the moderate mating cycle count typical of a power header — it will not match the cycle life of a gold-plated contact, but for a permanent or semi-permanent harness connection the difference is academic. The UL94 V-0 polyamide insulator means the header can be used inside equipment enclosures that require a flame rating — a standard expectation for power interconnects in commercial and industrial gear.
The JST B8PS-VH is listed as obsolete. No official successor part number has been published. Buyers with this on a BOM should treat it as a last-time-buy or surplus-channel item.
The solder posts measure 0.142" (3.60 mm) long, suitable for standard through-hole PCB thicknesses.