2.54mm Pitch SMT Header — 4-Position, Shrouded
The 1.5A ceiling suits signal-level and low-power circuits — not for power distribution. The 105°C upper limit covers most indoor industrial environments and some outdoor cabinets, though the tin-plated contacts (3.00µm on mating face) limit reconnect cycles compared to gold.
Mounting and Shrouding Details
Surface-mount termination with a shrouded 4-wall design and latch lock. The SMT footprint saves board space versus through-hole, but the latch lock adds a positive tactile click during mating — a hand-tight should seal it, but check that the latch engages fully to avoid a half-turn loose dropout in service. Insulation height is 0.181" (4.60mm), so plan z-height accordingly.
Housing is polyamide 4/6 (PA46) glass-filled, rated UL94 V-0 for flame retardance. ROHS3 compliant per the lifecycle record.
Peer Alternative — 1-1871673-2
It uses a detent lock instead of a latch, and current is wire-gauge dependent rather than a fixed 1.5A. The 338728-4 is SMT; the 1-1871673-2 is through-hole — choose based on your assembly process and board orientation.