45-Position DIN 41612 Receptacle with Press-Fit Termination
The TE Connectivity 188826-4 is a DIN 41612 receptacle with 45 contact positions, of which 31 are loaded. The connector uses Style F contact arrangement, meaning the three rows follow a specific pinout pattern defined by the DIN 41612 standard — the unloaded positions are simply empty holes in the insulator, so the PCB footprint must still accommodate the full 45-pin grid if you plan to populate them later. The housing is glass-filled polyester, rated for the thermal and mechanical demands of a backplane environment.
Style F and the 31-Loaded Pinout
Style F is a specific contact arrangement in the DIN 41612 family — it defines which positions in the 3-row grid carry signals and which are reserved or unloaded. The 188826-4 ships with 31 positions loaded, leaving 14 cavities empty. This is a common selective-loading practice in backplane designs where not all pins are needed for the initial routing, but the full 45-position footprint is kept for future expansion.
Press-Fit Backplane Fit
This connector is built for press-fit backplane assembly. The compliant pin design eliminates the solder wave or reflow step, which reduces thermal stress on the board and allows for easier rework — a bad pin can be pushed out and replaced without desoldering. Mates with any DIN 41612 male header that follows the Style F pinout.