24-Position Dual-Row Header for Wire-to-Board Power
The 2-1586768-4: This is a 24-position, dual-row, through-hole header from the TE VAL-U-LOK series, pitched at 4.20 mm on both row and position spacing. The 4-wall shroud and locking ramp fastening give it a positive mate with the matching VAL-U-LOK receptacle — no screws, just a push until the ramp clicks. That ramp holds under vibration better than a plain friction lock.
Glow Wire and Temperature Range for Appliance Duty
The header is Glow Wire Compliant, a requirement for lighting and small-appliance builds. That 105°C ceiling is typical for a nylon housing — fine for enclosed lighting fixtures and industrial control cabinets, but not for direct engine-bay exposure.
The closest functional alternative in the same VAL-U-LOK family is the 4-1775099-7, a 20-position header with identical 4.20 mm pitch, 9 A rating, locking ramp, and tin-plated contacts. The difference is four circuits — if your BOM calls for 24 positions, the 20-position part won't fit without a layout change. Both are active; no second-source outside the series is a direct drop-in.