The JST B10PS-VH(LF)(SN) is a 10-position, single-row header from the VH series, designed for board-to-cable/wire interconnect. It carries a 3.96mm pitch, rated 10A per circuit at 250V, with tin-plated square male pins. The through-hole, right-angle orientation routes the wire exit parallel to the PCB — a common fit for power distribution in industrial control panels, white goods, and automotive harnesses where the connector needs to sit flush against the board edge. The locking ramp on the shroud holds the mating receptacle in place under vibration, a detail that matters more in the field than the headline current rating.
What the ratings mean for the fit
The 3.96mm pitch is the board-layout anchor — it sets the footprint spacing and is wider than the 2.54mm common on signal headers, which gives more creepage for the 250V rating without forcing an oversized board. The 10A per circuit rating means this header handles moderate power, not just signal; the limiting factor is the temperature rise in the nylon 6/6 housing, not the brass contact itself. Tin plating on both the mating and post side keeps the cost down for applications where the connector mates infrequently — a few dozen cycles over the life of the assembly. The operating range of -25°C to 85°C covers most indoor industrial and automotive cabin environments, but not under-hood engine bay duty.
Sourcing and lifecycle
The B10PS-VH(LF)(SN) carries an active lifecycle status, so there is no last-time-buy pressure or obsolescence risk on this BOM line. The (LF)(SN) suffix in the order code indicates the lead-free and tin-plated finish — the base product number B10PS-VH without the suffix is the same header in a different plating option, not a functional difference in fit or rating.
Compliance and approvals
The housing carries a UL94 V-0 flammability rating, which is a hard requirement for equipment installed inside an enclosure under most safety standards. The header is RoHS-compliant as indicated by the (LF) suffix in the order code.