What this 1.25 mm SMT receptacle is for
The 1.25 mm pitch and surface-mount termination suit compact, low-profile designs in automotive, industrial, lighting, and medical equipment.
The 1.25 mm pitch is the key board-layout dimension: the footprint must match this spacing exactly, and the 8 positions load all contacts.
It is ROHS3 compliant and uses a UL94 V-0 rated resin housing.
The closest functional alternative is the 5023820770, which is identical in pitch, current, voltage, and features but has 7 positions instead of 8.