Board Layout and Mating Fit
The 39521-1024: Vertical orientation means the header stands upright, mating with a receptacle that approaches from above.
Sourcing and Compliance
ROHS3 compliant.

Molex 39521-1024, 5.0mm EURO HEADER VERT BLK 24CKT, vertical through-hole header, 24 circuits, single-row, black housing, ROHS3 Compliant, Active.
| Parameter | Value |
|---|---|
| Series | * |
| Package | Box |
The 39521-1024: Vertical orientation means the header stands upright, mating with a receptacle that approaches from above.
ROHS3 compliant.
Yes — the 5.0 mm pitch is standard across the Molex Eurostyle series. The 24-circuit vertical header mates with a 24-circuit Eurostyle receptacle that shares the same 5.0 mm pitch. Confirm the circuit count and orientation (vertical vs right-angle) on the mating half before ordering.