What the 7.5A rating and 3.96mm pitch mean for your board
The 7-1123724-5: This 9-position header from the Economy Power series mates with a crimp receptacle to form a board-to-wire connection. The 3.96mm pitch sets the board footprint and the per-contact current ceiling—at 7.5A the temperature rise stays within the UL94 V-2 housing limit.
Position count: 9 positions, but only 5 loaded
The header has 9 pin positions but only 5 are populated with contacts. This is common when the application uses fewer circuits than the housing allows—confirm your BOM circuit count matches the loaded positions, not the total. The unloaded positions are empty; no terminal can be inserted there.
Glow wire and flammability for safety-critical gear
The housing is glow wire compliant and rated UL94 V-2. In lighting and industrial equipment inside an enclosure, this flame rating means the connector won't propagate a fire if the contact overheats.