Its 0.100" (2.54mm) pitch sets the PCB footprint and the per-contact current ceiling—at 3A the temperature rise stays within the UL94 V-0 thermoplastic housing's limits.
Press-fit and solder termination with board guide
Termination is listed as press-fit and solder, meaning the through-hole posts (0.130" / 3.30mm long) can be wave-soldered or pressed into plated holes for a solderless backplane assembly.
Confirm the mating half (4-circuit AMPMODU MTE receptacle) and board footprint before committing.
The pitch also differs: 0.112" (2.85mm) vs 0.100" (2.54mm), so they are not footprint-compatible. The gold plating on the 5-104809-3 gives it an edge in high-cycle or corrosive applications; the tin sibling is a lower-cost option for static, indoor use.