How it compares to the 3-position sibling
The B03P-VL is the same header with one extra position — same 6.20 mm pitch, same 20 A per circuit, same 600 V rating, same shrouded housing and latch holder. If your BOM calls for a 3-circuit power input, the B03P-VL drops into the same footprint family and uses the same mating receptacle and crimp terminals. No change in tooling, wire gauge range, or board layout pitch — just one more pin.
