Scope: This certification mark can be applied to LED (Light Emitting Diode) module and package which can be used in various light source of vehicle.
LED is used not only for switch indicator, interior light, but also for headlamps, DRL(Daytime Running Light), fog-lamps, signalling lamps, Rear Combination Lamp that require elevated reliability. LED have higher efficiency and longer life-time compare to existing filament bulb and HID (High Intensity Discharge Lamp). Also, the size of light source is small so it gives more flexibility to lamp design.
LED used for vehicle requires high reliability and it needs to be stable in more harsh condition than general lighting. It can be assessed according to AEC Q102.
Basis of certification: The testing item is LED package which using vehicle component (ex. LEDs of Interior light in car). This LED package will be performed test according AEC Q-102 and parts of UL 8750. Main standard AEC Q-102 consists of reliability testing.
Main testing of reliability testing are as below;
- Endurance of high temperature
- Endurance of vibration
- Endurance of solder heat
- Endurance of mechanical shock
- Endurance of gas (ex. Hydrogen Sulphide)
- Endurance of static (ex. HBM (Human Body Model) and CDM (Charged Device Model))
And parts of testing of UL 8750 are:
- Electric voltage withstand test (between LED and case)
- Thermal aging test.
In conclusion, it is the evaluation and certification of the reliability test (verifies that the LED package can work well even in harsh environments).
Keywords of the certification mark