Abstract: A propellant-rich aerosol cleaner for use with electrical circuit boards and electrical connector components includes a solvent having a low or no ozone depletion potential and a propellant. The solvent is present in a concentration of at most about 50 percent by weight and preferably about 40 percent, and the propellant is present in a concentration of at least about 50 percent by weight and preferably about 60 percent, of the cleaner. The cleaner exhibits a cleaning characteristic of about 0.25 milligrams of soil per gram of cleaner delivered and exhibits low to no residual flammability. In one formulation, the solvent is n-propyl bromide and is present in a concentration of about 40 weight percent. In another formulation, the solvent is trichloroethylene and is present in a concentration of about 20 weight percent.