What this header is
The B9P-VH is the 9-position member of the VH series — a single-row, board-to-cable header with a 0.156 inch (3.96 mm) pitch and square male pins designed for through-hole solder termination into a PCB. The locking ramp on the header body mates with a matching VH receptacle housing; once seated, the ramp locks the pair against vibration disconnection — the primary mechanical reason this series appears in harness assemblies rather than bare board-to-board stacks. Contacts are brass with tin plating applied uniformly to both the mating interface and the solder-tail post — no gold option on this variant, so the finish tracks toward signal and low-power distribution rather than high-cycle data switching. The insulator is polyamide (PA66, nylon 6/6) rated UL94 V-0, and the overall contact length is 0.575 inch (14.60 mm) with a post length of 0.146 inch (3.70 mm) — the mated stack height when seated in its matching housing is 16.5 mm.
Key ratings for the BOM line
Circuit count: 9 positions, all loaded, single row. Match this directly against the wire harness position count — no partial-load option on this variant. Current rating is 10 A per contact at 250 V AC/DC — a solid rating for power-distribution harness runs in industrial equipment, lighting control, and appliance interconnection. The tin plating does not de-rate this figure relative to a gold finish at these current levels, but it does cap reconnection cycle ambition: tin-on-tin is suited for permanent or low-cycle assemblies. Operating temperature range is -25°C to 85°C — adequate for most indoor industrial and appliance environments, but flag this for any outdoor or enclosed-panel application where ambient can spike higher. Insulation height is 0.370 inch (9.40 mm) from the board surface to the top of the housing — verify this clears any tall components in the board layout.
How it sits against its VH series peers
The B9P-VH-B and B9P-VH-B(LF)(SN) carry identical electrical and mechanical specs to the B9P-VH — same 9 positions, same pitch, same current and voltage — the only delta is the lead-free / tin plating designation on the LF variant, which tracks to RoHS compliance requirements on the same physical part. The B9P-VH-FB-B(LF)(SN) steps up to full 4-wall shrouding and substitutes copper alloy for the brass base material on the contacts — a meaningful difference only if the application demands complete side-wall protection or if the contact base material is specified by the OEM drawing. For a standard harness-to-board hookup, the 1-wall shrouding on the base B9P-VH is sufficient.