Through Headers. Tin plated through headers, suitable for interconnecting two PCBs. They can be used with appropriate DIL socket to form a plug and socket pair, or can be directly soldered to the PCB. Inner contact material: Tin plated beryllium copper Outer pin material: Tin plated brass Current rating 3A 100 Cycles (Contact Life) Insulation Resistance: 5 x 10 ;sup>9 ;/sup> (at 500Vdc) Operating Temperature -65°C to +175°C Flammability UL 94 V-0