Browse Standards USCAR3-3
Current REVISED 2010-01-15

SPECIFICATION FOR TESTING AUTOMOTIVE MINIATURE BULBS USCAR3-3

The procedures contained in this specification cover the laboratory testing of miniature incandescent bulbs for use in automotive illumination and signaling applications. The following tests shall be run whenever the following occurs:
  • New bulb design
  • Design or process change made to an existing bulb, which could affect the outcome of the test.
  • The completion of one calendar year as noted in the following Test Schedule Table. Process control data is acceptable.
    Test Title Yearly
    Physical Dimensions X
    Mean Spherical Candela X
    External Visual Examination X
    Crush X
    Thermal Shock X
    Bayonet Base Retention X
    Pin Removal X
    Wedge Base Retention X
    Lead Wire Bend X
    Lead Wire Pull X
    Natural Amber Color X
    Coated Amber Color
    • Integrated Color
    • Visual Color
    • Point Color
    • Color Maintenance and Coating Durability
    • Amber Coating Chemical Resistance
    X
    X
    X
    Resonant Frequency
    Aged Resonant Frequency
    Salt Spray
    Wire Loop Pull X
    Outgassing/Heat
    Laboratory Life
    Accelerated Life X
    Luminous Intensity Maintenance X
    Vibration Durability
    Shock
    Aged Vibration Durability
    Test Schedule Table
USCAR3-3
2010-01-15
Latest
Revised
USCAR3-2
2002-04-15
Historical
Issued
USCAR3A
2000-05-01
Historical
Issued
USCAR3
1997-07-01
Historical
Issued

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