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Light touch button switch of several main performance test shows:<br /> A, soldering resistance test:<br /> 1, solderability test:<br /> Way: tin welding feet dangling into the pool is about 2 mm deep, test temperature of about 230 + 5 ℃, holding time for 3 + / - 0.5 seconds.<br /> Results: the bubble is part of more than 80% of the welding feet are covered by tin.<br /> 2, welding resistance test:<br /> Method: solder welding furnace temperature control at 260 + 5 ℃, furnace welded to keep in time to 5 + 1 seconds (substrate)<br /> Hand welding when the temperature control in the 350-30 ℃, time of 3 + / - 0.5 seconds but not abnormal pressure of the welding foot.<br /> Results: the light touch button switch, no deformation, can meet in electrical performance. Abnormal pressure on the results.<br /> Second, the cold tolerance test:<br /> Method: 20 + / - 3 ℃ below zero temperature environment to place four days, then in the normal environment, 30 minutes for testing.<br /> Results: contact resistance, insulation resistance in the standard range, without any signs of damage of the switch performance.<br /> Three, high temperature resistance test:<br /> Method: in 280-30 ℃ environment temperature, product storage for 2 to 3 minutes, wait for after cooling test its handle, resistance.<br /> Results: the resistance force, the springback, appearance, etc.; No any signs of damage. Light touch button switches use performance remains intact<br /> Four, wet resistance test:<br /> Way: from 40 to 90-95% RH + 2 ℃ environment into four days, then placed in the normal environment, 30 minutes for testing.<br /> Results: the contact resistance, insulation resistance are within the scope of the standard, and no any signs of damage of the switch performance.<br /> Five, alternating temperature test<br /> In different temperature environment, circulation again after five times after 30 minutes under normal environment for testing;<br />
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