Low- & Ultra-Low-Profile Spring-Loaded Connectors Mill-Max Low-Profile and Ultra-Low-Profile Individual Spring-Loaded Connectors feature discrete spring-loaded contacts to provide designers with additional options for smaller designs. The product line includes short, standard, long, and combined-stroke low-profile connectors and short-stroke ultra-low-profile connectors. These connectors are RoHS 2 compliant and available with solder or surface-mount pins. Mill-Max Low-Profile and Ultra-Low-Profile Individual Spring-Loaded Connectors feature 20µ' gold-over-nickel sleeve plating with 10µ' gold-over-nickel spring plating. The connectors offer 20mΩ maximum contact resistance and a durability rating of 1M cycles.