How is the insertion and removal force of a connector determined?

The force require to properly insert and remove that connector greatly affects the stress and productivity of the work. When lower poundpower is available to create normal contact, the worker's task may become easier. Insertion force is a factor in the coefficient of friction, wear resistance, and other mechanical variables. Connector design and materials play a key role in reducing friction. When 10 to 12 contacts are involved, the force adds 18 pounds or more of force to the connector insertion and extraction. High peak insertion forces can cause a number of problems, such as CTS, that have been addressed by recent connector design solutions. Today's equipment manufacturers can adopt advanced connector designs and improve upon standard connectors that have not changed in decades. When higher connector counts are encountered due to more signals and power lines in more complex equipment, workers can benefit from LIF termination. In many cases, it is worth investigating the benefits of LIF connector design over applying a lubricant to the terminals to reduce insertion and extraction forces. The new design provides benefits that may include: an audible "click" sound when the connectors are engaged and tactile feedback so production workers know when to stop applying force; the provision of a visual key to avoid jamming the connectors together in the wrong direction, such as a rounded edge under the housing and the introduction of the connector to further reduce assembly problems.

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