Board Footprint and Current Capacity
The 5-146258-5: Rated 3A per contact with tin-plated mating surfaces — the tin finish keeps cost low for moderate-cycle applications, though it is more prone to fretting corrosion than gold in high-vibration environments. The 0.230" (5.84mm) mating pin length provides a solid insertion depth into a matching receptacle, while the 0.090" (2.29mm) post length suits standard through-hole PCB thicknesses.
Mating and Mechanical Fit
The 0.090" (2.29mm) insulation height leaves the pins exposed, which simplifies probing and visual inspection but offers no polarization — verify the mating receptacle's keying if mis-mate protection is needed.
Compared to the shrouded 1379030-3 (12 positions, friction lock, right-angle), this 5-146258-5 is unshrouded, vertical, and has no locking feature — choose the shrouded version when vibration resistance or polarization is required. The 2.54mm pitch is identical across both parts, so the board footprint for a single row is the same; the key difference is mechanical retention and orientation.