3-644892-5 is an MTA-156 flat header connector designed for printed circuit board interconnection applications. This 5-position header features straight copper alloy posts with tin plating over nickel, providing reliable electrical contact and corrosion resistance. The connector utilizes a 0.156-inch (3.96 mm) centerline spacing and is housed in a UL94V-0 rated polyester material. The header is compatible with MTA-156 connectors and supports wire gauges from 18 to 26 AWG. This product is RoHS compliant (lead-free equivalent) and is commonly used in industrial control systems, telecommunications equipment, and consumer electronics where compact, reliable board-to-wire connections are required.