
HCTL
A form-fit compatible header, but with a lower current rating that requires engineering validation.
The JST B2P-VH-B(LF)(SN) is a robust 2-pin, 3.96mm pitch vertical header known for its 10A current capacity. Finding a substitute requires careful matching of its physical form and high current rating.
All viable candidates have a lower current rating (7A vs 10A). Requires circuit analysis.
Kept candidates match the vertical through-hole footprint and 3.96mm pitch.
No direct, 1-to-1 replacement for B2P-VH-B(LF)(SN) was found among the candidates, as all mechanically similar parts have a lower current rating (7A vs 10A).
The best path is to source a vertical, 2-pin, 3.96mm pitch header rated for 10A or more. The identified alternatives are compromises on current.
The primary risk is electrical overstress. Using a 7A-rated connector in an application requiring 10A can cause overheating, damage, or fire.

HCTL
A form-fit compatible header, but with a lower current rating that requires engineering validation.
| Feature / factor | B2P-VH-B(LF)(SN) | HC-VH-2ALT | KH-VH-2P-Z | ZX-VH3.96-2PLT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Vertical | Through Hole, Vertical | Through Hole, Vertical | Through Hole, Vertical | Through Hole, Vertical — Mounting orientation matches.; KH-VH-2P-Z: Mounting orientation matches.; ZX-VH3.96-2PLT: Mounting orientation matches. |
| Pitch | 3.96mm | 3.96mm | 3.96mm | 3.96mm | 3.96mm — matched; KH-VH-2P-Z: matched; ZX-VH3.96-2PLT: matched |
| Current | 10A | 7A | 7A | 7A | 7A — Lower current rating requires application review.; KH-VH-2P-Z: Lower current rating requires application review.; ZX-VH3.96-2PLT: Lower current rating requires application review. |
| Voltage | 250V | 250V | 250V AC/DC | 250V | 250V / 250V AC/DC — matched; KH-VH-2P-Z: matched; ZX-VH3.96-2PLT: matched |
The best alternatives found are ZX-VH3.96-2PLT, KH-VH-2P-Z, and HC-VH-2ALT. They match the package and pitch, but are rated for 7A, not 10A. You must verify if this lower current is acceptable for your design.