
HCTL
A form-factor compatible header, but with a lower current rating that requires engineering review.
Finding a substitute for the JST B2P-VH-BK(LF)(SN) 2-pin 3.96mm header requires checking the current rating. While several alternatives match the vertical through-hole form factor, most have a lower 7A rating compared to the original's 10A.
All alternatives have a lower current rating (7A vs 10A).
Several alternatives match the vertical through-hole footprint.
No direct drop-in replacement with a 10A rating was found. All form-factor compatible alternatives have a lower current rating of 7A, requiring engineering review.
Use a form-factor compatible alternative like HCTL HC-VH-2ALT, but verify the application's current draw does not exceed 7A.
The primary risk is electrical overstress, as all identified alternatives have a lower current rating (7A) than the original part (10A).

HCTL
A form-factor compatible header, but with a lower current rating that requires engineering review.
| Feature / factor | B2P-VH-BK(LF)(SN) | HC-VH-2ALT | WAFER-VH3.96-2PZZ | ZX-VH3.96-2PLT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Top Entry | Through Hole, Vertical | Through Hole, Straight | Through Hole, Vertical | Through Hole, Vertical / Through Hole, Straight — Form factor matches target.; WAFER-VH3.96-2PZZ: Form factor matches target.; ZX-VH3.96-2PLT: Form factor matches target. |
| Current | 10A | 7A | 7A | 7A | 7A — Significant downgrade from target.; WAFER-VH3.96-2PZZ: Significant downgrade from target.; ZX-VH3.96-2PLT: Significant downgrade from target. |
| Voltage | 250V | 250V | 250V | 250V | 250V — Voltage rating matches.; WAFER-VH3.96-2PZZ: Voltage rating matches.; ZX-VH3.96-2PLT: Voltage rating matches. |
| Pitch | 3.96mm | - | - | 3.96mm | 3.96mm — Pitch matches. |
Parts like HCTL HC-VH-2ALT or Megastar ZX-VH3.96-2PLT are good form-factor matches, but have a lower current rating of 7A versus the original's 10A. They should only be used after verifying the application's current needs.