What the 3 A Rating and 0.100" Pitch Mean for Your Board
The 77313-822-38LF: For a 38-position header carrying mixed signal and low-power lines, this is comfortable — but if you plan to load every pin at 3 A simultaneously, the total current through the header is 114 A, and the board trace width and via count need to match that aggregate. The unshrouded design means there's no plastic guide to align the mating receptacle — the technician aligns pin-to-socket by eye. On a 38-position dual-row header, a slight angular misalignment during mating can bend the outer row pins. This header is best suited for controlled board-to-board or cable-to-board alignment where the mating half is fixture-guided or the harness is pre-aligned.
Gold Flash on Mating, Tin on Tail — Why It Matters for Field Service
The phosphor bronze contact spring retains its normal force over temperature swings, keeping contact resistance stable.
Active Production — No End-of-Life Watch
No LTB notice, no successor part number to cross-reference. For a BOM that needs this exact 38-position, 0.100" pitch, unshrouded header, the supply chain is stable through independent distribution. The base product number 77313 covers the full BERGSTIK breakaway family; the -822-38LF suffix locks in the gold plating, 38 positions, and tin post finish.
Dimensions and Pinout for the Harness Builder
Row spacing is also 0.100" (2.54 mm), so the 38 positions occupy a 19-position-per-row footprint — 18 positions on one row, 20 on the other, but all positions are loaded. In a high-vibration environment, consider a secondary retention method (board mount adhesive or a locking receptacle housing).