Board-to-Board Mezzanine Fit: 100 Positions at 1.27mm Pitch
The 90098-150LF: This is a 100-position, dual-row header on 0.050" (1.27mm) pitch — the row spacing is also 1.27mm, so the footprint is a 50×2 grid that routes cleanly between two inner layers on a standard PCB. The mated stack height is 8.26mm, set by the insulator height of 0.298" (7.57mm) plus the 0.130" (3.30mm) mating pin length. That z-height budget is fixed: the mating receptacle must match this stack height, not just the pitch.
Peer Comparison: 91036-150CTLF vs 87409-150LF
The closest sibling is 91036-150CTLF — same 100 positions, same 1.27mm pitch, same gold plating thickness, but the mated stack height is 9.93mm instead of 8.26mm. That 1.67mm difference changes the mezzanine gap and may require a different receptacle. The 87409-150LF is a shorter stack at 6.42mm, also 100 positions, but the lower profile reduces the z-height budget further. Neither is a drop-in replacement; the board layout must match the specific stack height.
Operating Environment and Compliance
Rated -55°C to 130°C, which covers industrial cabinet thermal cycling and automotive underhood ambient.