What the 0.100-inch pitch and 9 circuits mean for the board
Tin is cost-effective for moderate-cycle applications — expect 50-100 mating cycles before wear-through, which suits bench-test and periodic service connections. The 3 A ceiling is conservative for the contact cross-section; derate above 105°C per the standard curve.
The unshrouded design gives access for probing or manual wiring, but offers no keying; verify the mating receptacle's polarization before committing the assembly.
