What this 3-position shrouded header does
The 350423-1 is a 3-position, single-row header from TE's Commercial MATE-N-LOK series, designed for board-to-cable/wire connections. The 5.08 mm pitch sets the board footprint and the per-contact current ceiling — at 12 A the temperature rise stays within the nylon housing's limit. The 4-wall shroud protects the tin-plated male pins during handling and guides the mating receptacle into alignment — a real advantage over an unshrouded header in a production harness build where the cable plug is inserted blind. Rated 12 A per contact at 250 VAC, this header suits power distribution inside general-purpose equipment — think power supplies, control panels, and appliance PCBs where the current draw per circuit stays under the 12 A ceiling.
Mating half and locking
This header mates with Commercial MATE-N-LOK receptacle housings that accept the matching crimp terminals — the 4-wall shroud and integral latch ramp on the housing provide a positive lock against vibration. The locking feature is on the receptacle side, not the header itself. The tin-on-tin contact interface is rated for a moderate number of mating cycles — suitable for equipment that is assembled once and serviced infrequently. For field-service applications where the connector is cycled repeatedly, a gold-plated sibling would give more reconnect margin.
Sourcing and lifecycle status
ROHS3 compliant, UL94 V-2 rated nylon housing. The base product number is 350423, which covers the series variants.