12-Position, 4.14 mm Pitch Header for Wire-to-Board
Through-Hole Termination and Board Lock Retention
Tin-lead provides good solderability and corrosion resistance in non-aggressive environments, though it limits the mating cycle count compared to gold-plated contacts.
Peer Comparison: 4-1775099-7
A close functional alternative is the 4-1775099-7, also a shrouded header with locking ramp, but it offers 20 positions in a 2-row layout at 4.20 mm pitch, with tin-plated contacts and a 9 A current rating at 250 VAC. The 770186-1 provides 12 positions in 3 rows at 4.14 mm pitch, with tin-lead plating and a 600 VAC rating. The row count and voltage rating are the key differentiators for BOM fit.