The 1729540000 is a straight, double-row male pin header designed for through-hole technology (THT) solder mounting. It features 28 poles with a 3.50 mm pitch, tinned copper alloy contacts, and an orange PBT insulator with a UL 94 V-0 flammability rating. This flanged connector has a solder pin length of 3.5 mm and is rated for an operating temperature range of -50 °C to 100 °C. It carries an IEC rating of 250 V / 10 A and a UL rating of 150 V / 10 A (Use Group B). Designed for wave soldering, this header provides a reliable board connection and includes a flange for secure, screwable mounting to the PCB.