Engineers share: How to save and use LED lamp beads
store In order to prevent moisture, led should be stored in a dry and ventilated environment, storage temperature is -40 ° C - +100 ° C, relative humidity is below 85%. clean Do not use unknown chemical liquids to clean the LEDs, as this may damage the surface of the LED resin and even cause colloidal cracks. If necessary, please immerse the LEDs in alcohol or fluorinated argon at room temperature for one minute. Forming Do not form during or after welding. If necessary, the forming must be completed before welding. welding During the welding process, do not apply any external pressure to the lamp body, otherwise cracks may appear inside the LED, which may affect the internal gold wire connection and cause quality problems. The gel must not be immersed in the solder. When welding, the solder joint should have at least 2 mm clearance from the lower edge of the colloid. After the soldering is completed, it is necessary to use three minutes to return the LED from a high temperature state to a normal temperature. If soldering a linearly arranged LED on the same PCB with a soldering iron, do not solder the two pins of the same LED at the same time.
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The LED is preferably used within 3 months of its original packaging conditions to avoid rusting the bracket.
When the LED packaging bag is opened, it should be used as soon as possible. At this time, the storage temperature is 5°C-30°C, and the relative humidity is below 60%.
It is important to remember that the behavior of any extruded resin can damage the gold wire inside the LED.
A soldering iron of 30W or less is required for soldering iron soldering.
There are two specifications for LED soldering. The specific parameters are as follows:
Soldering iron soldering temperature: 295 °C ± 5 °C Welding time: within 3 seconds (only once)
Wave soldering soldering temperature: 235 ° C ± 5 ° C soldering time: within 3 seconds
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