2-641215-0 is an MTA-100 series PCB header designed for wire-to-board interconnect applications. This 20-position header features 0.025 inch (0.64 mm) square posts on a 0.100 inch (2.54 mm) centerline with 0.000030 inch (0.00076 mm) gold plating for reliable electrical contact. The header is available in both straight and right-angle post configurations with retentive legs for secure PCB mounting. Constructed with UL 94V-0 rated housing material, it provides excellent flame resistance for safety-critical applications. This header is commonly used in consumer electronics, industrial controls, and other applications requiring reliable wire-to-board connections.