• USCAR33

• 2013-02-19

• Uscar

This specification is a general level subsystem light source specification that establishes testrequirements of Light Emitting Diode (LED) components and modules for use in automotive lightingsystems.The completed test data to this test specification is intended to be provided to the OEM by the Tier Ilamp set maker as part of the lamp assembly PPAP. Re-testing shall be required if any portion of theapproved LED modules experiences a design, manufacturing or component change.This document shall be applied to systems that meet the requirements for design, performance andvalidation established by government standards.The LED module is defined as the LED devices and any electronics required to properly energize theLEDs using vehicle electrical power system along with any associated electrical wiring, connectorsand thermal management system. Samples shall be tested as a subsystem and considered one testsample for the entire test sequence. A failure of any component in the test sample shall constitute afailure of the entire sample. If other manufactures components are intended to be approved for usein the LED modules, then those possible combinations of components shall be considered a new LEDmodule and shall also be tested.Additional testing may be required by individual OEM’s to meet specific EMC, quality, reliability anddurability objectives.The following tests are to be performed under the following conditions:• New sample• Design or process change made to an existing module• Completion of one calendar year as noted in the “ANNUAL TESTS” Table shown in theAppendix. (Note: Production process control data, collected at a shorter interval per anapproved control plan, may be substituted if approved by customer’s responsible engineer andpurchasing representative.)

• SAE USCAR 33

• Automotive

• Simulation and Modeling