The 5-146276-3 is a 3-position, single-row breakaway header assembly from the MOD II series, designed for vertical mounting on printed circuit boards. It features 0.025-inch square brass posts on a 0.100-inch (2.54 mm) centerline, housed within a black, high-temperature LCP material. The contacts are plated with 0.000015 inches of gold in the contact area and matte tin-lead on the solder tails, over a nickel underplate, ensuring reliable connectivity. The breakaway feature allows the header to be easily separated to the desired number of positions, making it a versatile solution for various board-to-board and wire-to-board applications.