Company overview
Shandong Longli Electronics Co., Ltd. was founded in 2002 and is based in Linyi High-tech Development Zone. It develops, manufactures and sells optoelectronic connectors and charging and battery-swapping equipment, with research and development centers in Linyi, Xi’an and Jinan. Its connector range serves aerospace, defense, electrical equipment and underwater systems.
Micro rectangular connector models include J30, J30V2, J30J, J63A and JCDw-37 for circuit connections in equipment with limited installation space and strict weight requirements. Contact options include crimp, solder and printed-circuit-board types. FQ/FQN circular connectors offer quick plug-and-socket connection, vibration resistance and sealing for electronic and electrical equipment. The RF range includes SMA, SSMA, N, TNC and BNC connectors, millimeter-wave and miniature blind-mate series, coaxial cable assemblies and adapter modules.
JS/JSE underwater watertight connectors have a design water depth of 7,000 meters and come in 1-, 4-, 7- and 12-core configurations. Their applications include power and signal transmission and electric/hydraulic control in seabed observation networks, offshore drilling, marine mining and underwater search and rescue. Hermetic connector families include MX, CX2, CS-FX, MXF, GM, AM and MXFB, alongside customized sealed terminal boards. These use glass-to-metal seals for power and signal connections in sealed equipment, with applications including SF6 ring main units, high-voltage and ultra-high-voltage circuit breakers, and instrument transformers.
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