The SCPH-5501 models have this problem, that is why they redone the PlayStation three different times. The later PlayStation models doesn’t have this problem. You can find a later model on Ebay or Amazon for a reasonable price.
The Dualshock 3 (PlayStation 3) controllers from Sony don’t usually last long. They are made cheaply and wares out real easily. The 3rd party controllers honestly works more better than Sony’s controller does.