The 1-640452-0: ROHS3 compliant per TE Connectivity's current material declaration.
Mates with MTA-100 IDC receptacles (e.g., 640441 series) and standard 0.100" pitch crimp housings. The unshrouded design allows side-stacking of multiple headers on the same board without interference. No press-fit or surface-mount option on this variant.
Environmental and Electrical Ratings
Rated 250VAC with current capacity that varies by wire gauge — in practice, 5A per contact is typical for 22 AWG at 30°C rise, but derate for higher ambient or bundled wires. The natural insulation color aids visual inspection of seating depth in the receptacle.