SAE J2139 Testing of Devices Used on Vehicles
SAE J2139 test determines the integrity of an electronic device mounted on large vehicles when subjected to environmental conditions. As an ISO-17025 accredited environmental compliance test lab, we realize the importance of environmental regulatory testing. Meeting the SAE J2139 requirements can be difficult. We understand the challenges and guide companies through the process.
Keystone Compliance’s engineers take a consultative approach throughout the entire test program. We expedite comprehensive reports shortly after the completion of the test. Keystone proudly provides the peace of mind that all of your needs will be met.
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Summary of SAE J2139 Environmental Compliance Testing
This part of the SAE test evaluates the ability of a sample device to resist damage from vibration-induced stresses. The vibration test is not intended to test the vibration resistance of bulb filaments. However, it may be used to evaluate the effects of vibration-induced stresses on shock-mounted devices.
Ingress Protection Testing
Water-Spray Moisture Test. The water spray test evaluates the ability of a device to resist moisture leakage. This test also determines the drainage capability of the device with drain holes or other exposed openings in the device.
The water spray test is carried out for a minimum of 12 hours. At the end of the test, the unit is allowed to drain for a maximum of 1 hour. If a standing pool of water is formed by tapping or tilting the device, the water is extracted and measured.
A water submersion test can also be performed. For this test, the unit is completely submerged to a depth of 50 mm.
Dust Test. Dust testing evaluates the ability of a device to resist dust penetration. This test procedure will last a minimum of 5 hours. After the completion of the test, the outside of the unit is carefully cleaned off. Then, the enclosure is opened and inspected for the ingress of dust particles.
The corrosion test portion of SAE J2139 determines if an exterior-mounted device can resist salt corrosion. Ultimately, salt corrosion will impair the functional characteristics of the device.
Humidity and Temperature Testing
This test is for lighting devices including but not limited to LEDs and Discharge Signal Lighting Systems with integrated electronic components. Units subjected to humidity and temperature compliance testing must be able to withstand various temperature profiles.
Humidity and temperature testing are carried out for 8 hours. Temperatures range from -40C to the appropriate maximum temperature. The minimum transition rate is 1.3C per minute. A relative humidity requirement of 90% humidity is applied only during the 38C part of the profile.
Thermal cycle testing is necessary to ensure the proper operation of devices containing integrated electronic circuits under extreme temperatures.
Expert SAE J2139 Testing of Devices Used on Large Vehicles
What separates us from other NRTLs is when devices fail the compliance test requirements; we assist with the troubleshooting process by providing constant communication and a consultative approach.
In addition to SAE J2139 testing, Keystone has a full scope of expertise including EMC/EMI, shielding effectiveness, and package testing such as cold chain, accelerated aging, and sterile barrier. Our team strives to give our customers more time and energy on product development instead of testing.
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