Stewart Connector is the leading designer/manufacturer of high-quality, high-performance modular jacks and plugs for the telecommunications, local area network (LAN), data processing, medical instrumentation, automotive, ......Stewart Connector is the leading designer/manufacturer of high-quality, high-performance modular jacks and plugs for the telecommunications, local area network (LAN), data processing, medical instrumentation, automotive, and industrial markets. Headquartered in Glen Rock, Pennsylvania, Stewart was acquired by Bel Fuse Inc. in March 2003. Bel (www.belfuse.com) and its subsidiaries design, manufacture and market products used in networking, telecommunications, automotive and consumer electronics. Products include magnetics and connectors for voice and data transmission, fuses, DC/DC converters, power transformers, delay lines and hybrid circuits. Bel operates facilities around the world.