28-Position LPHPower Plug with Mixed Signal and Power Layout
The Molex 0459854343 is a 28-position plug from the EXTreme LPHPower 45985 series, configured with 24 signal contacts and 4 power contacts in a dual-row, 0.050" (1.27mm) pitch layout.
0.050" Pitch and Mixed Contact Array
The 0.050" (1.27mm) pitch is tighter than the 0.100" pitch used on standard power headers — it saves board real estate but demands careful trace routing between the 24 signal and 4 power contacts. The power contacts are physically larger within the same pitch envelope, so the board layout must allocate wider traces or copper pours to those four positions.