APPLICATION NOTES

Cleaning

• Do not use unspecified chemical solvents to clean the LED, as they could harm the epoxy of the LED.
• If cleaning is necessary, please immerse the LED in isopropyl alcohol or purified water (not tap water) at normal temperature for less than one minute.
• When unspecified chemical solvent, such as Trichloroethylene, Chlorines, Acetone and Diflon S3MC is used, it may cause cracks or haze on the surfaces of the lens.

Forming

• Do not form during or after soldering.   If forming is required, it must be done before soldering
• Please note , any pressure applied on the lens can fracture the epoxy and break the gold wire in LED.
• Lead forming must be done below the stand off position.
• Avoid bending the leads at the same point twice or more.
• The pitch of the leads must match the pitch of the holes on PCB.

Cutting

• Cutting the lead frame at high temperature may result in personal injury. Cut the lead frame at room temperature.

LED Lamp Soldering

• When soldering, leave minimum clearance between the resin and the soldering point.
• Maximum allowable soldering conditions are:

  Solder dipping: 260 degrees ºC max, 5 seconds max, one time.

  Soldering iron: 350 degrees ºC max, 5 seconds max, one time, power 40W max.

• Contact between solder iron tip and the epoxy must be avoided.
• Correcting the soldered position after soldering must be avoided.
• During soldering, do not apply any stress to lead frame, particularly when it is heated.
• When other SMD parts on the same circuit board and adhesive is to be cured, maximum allowable conditions are: 120 degrees ºC max, 60 seconds max.

Assembly

• Do not apply any stress to lead frame while assembling.
• When mounting products onto PCBs, the pitch between the mounting holes must match the pitch of the LEDs.

Static-Electricity Protection

• InGaN LED products are sensitive to ESD , a high standard of care must be observed . Particularly if an over-current and over-voltage which exceeds the Absolute Maximum Rating of LED s is applied, the overflow in energy may cause damage, or possibly result in destruction of the LED . Customer shall take absolutely secure countermeasures against static electricity and surge when handling LEDs .
• Proper grounding of products is recommended , use of conductive mat, semi conductive working uniform and shoes, and semi conductive containers are considered to be effective as countermeasures against static electricity and surge.
• A soldering iron with a grounded tip is recommended. An ionizer should also be installed where risk of static electricity generation is high.

Others

• Current limiting resistors in series are necessary to operate the LEDs within specified absolute maximum ratings.
• Circuit board should be design to prevent from reverse current when turning off the LED.
• Circuit board should be design to prevent from transient voltage when turning on and off the circuit

Safety Precaution on Product Use

• Users must comply with the laws and public regulations concerning safety.
• The light output of these LED products may cause injuries to human eyes in circumstances where the products are viewed directly with unshielded eyes for more than a few seconds.
• Semiconductor devices in general can malfunction or failed due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the user, when utilizing Brilliance Technologies products, to observe safety precaution, and to avoid situation in which a malfunction or failure of Brilliance Technologies product could cause loss of human life, body injury or damage of property.   In developing your design, please ensure that Brilliance Technologies products are used within the specified operating ranges as set forth in the most recent data sheet.