SAE USCAR 15 Specification for Testing Automotive Miniature Bulb Socket / Circuit Plate Assemblies

Developed by the Society of Automotive Engineers (SAE), the SAE USCAR 15 standard describes requirements and defines test procedures for automotive miniature bulb holder devices, including wedge-bottom sockets with integrated connectors, direct wire, wide-bottom sockets, circuit plate assemblies, and associated interfaces.

The tests must follow the order shown in the flowcharts in the standard annex (Annex E) when:

• New design
• Design made on an existing device that affects the result of the test
• Material or process change

Again, the test sequence described in the standard annex (Annex F) has to be carried out annually.

This test sequence is as follows:

• Test sequence 2 (only the following tests are run in sequence)
  • Bulb insertion/removal force
  • voltage drop
  • Vibration
  • bulb flicker
• Test sequence 8
• Test sequence 9
• Test sequence 10

Production process control data collected at shorter intervals than an approved control plan is changed if approved by the customer's responsible engineer and purchasing agent.

Automobile bulbs are produced within the framework of several standards. Bulbs used for headlights, turn signals and brake lights must comply with international and national regulations governing the types of lamps used. While there are no standard regulations for other automotive lighting applications such as auxiliary lamps or interior lighting, common types are used by many automotive manufacturers. Today, automotive miniature bulbs are produced with efficient performance, compact design, excellent quality and longer life in mind.

In the lighting world there are really two classifications of bulbs from which all other classifications of bulbs are derived: miniature lamps and large lamps. In the lighting industry, the bulb is called a lamp.

Miniature light bulbs are identified by a coding system that conforms to international standards published by the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO) . Miniature light bulbs are generally low voltage.

Our organization also provides light source holding system testing services within the scope of SAE USCAR 15 standard, with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.