1. A connector housing for an electronic/electrical device, the connector housing comprising:an enclosure defining an interior space in which the electronic/electrical device may be disposed, the enclosure including a wall with an opening extending therethrough and a shroud joined to and extending from the wall; and
a header connector secured to the enclosure so as to extend through the opening in the wall, the header connector comprising:
a plastic mounting block having a plurality of sidewalls joined to, and extending from, a laterally-extending structure, the sidewalls being spaced apart to define a plurality of slots arranged in a lateral direction;
a plurality of contacts at least partially disposed in the slots of the mounting block, respectively, the contacts being arranged in a plurality of rows that each extend in the lateral direction such that a plurality of the slots each contain a plurality of the contacts from different ones of the rows, with each of the slots containing not more than one of the contacts from any one of the rows, the contacts each having a first section and a second section, the first section including a connector end disposed inside the shroud and the second section including a plurality of retention tabs and a tail end for connection to the electronic/electrical device, the retention tabs extending in the lateral direction and engaging the mounting block to help secure the contacts to the mounting block; and
a keeper connected to the mounting block, the keeper having a plurality of passages through which the contacts extend, respectively, so that the tail ends of the contacts protrude from an outer surface of the keeper.