high luminance 2835 CRI >80 performance light emitting diode LED
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- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 4000 PCS
- Supply Capability:
- 18000000 PCS/month
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Specification
1. Features & Benefits
- Package: 2.8*3.5*0.65mm (Top view white LED)
- Emitted Color: White
- Soldering methods: All SMT assembly methods
- Enables 3-, 4-, 5-step MacAdam ellipse kits
- Extremely wide viewing angle,standard form factor design flexibility
The minimum luminous efficiency 160lm/w@60mA
2. Typical Application:
- Bulb
- ndoor & Outdoor sign board back light
- Advertising backlighting
- General use.
3. Precautions for use
3.1 Soldering
SMD LED encapsulation is very flexible, outside force easily demolish radiant surface and plastic, As soldering , Please handle with care!
a. With No-clean Flux, according to reflow soldering cure condition when soldering, Reflow soldering should not be done more than two times, simultaneity you must insure clean on the radiant surface. Otherwise, foreign objects can affect radiant color.
b. Don’t process manual soldering except repair. Recommended to be soldered with 25W Anti-static iron, The temp. of the iron should be lower than 300℃ and soldering time should not be done more than three seconds, at the same time iron can’t touch radiant surface and plastic.
c. Don’t twist LED in course of manual soldering and experiment, Otherwise, the lights will not work possibly.
d. Please use the same BIN grade in one panel, and don’t mix the difference BIN grade in one panel when soldering. Otherwise, it will cause a serious uneven color problem.
e. Please control the sulfur content of solder paste and PCB.
f. Pb-free solder temp.-time profile as below:260℃Max.
3.2 Cleaning
a. Don’t be cleaned with ultrasonic. Recommended to be wiped with isopropyl alcohol or pure alcohol,wiping time should not be more than one minute. LED must be placed at room temperature for fifteen minutes before producing .you must insure clean on the radiant surface. Otherwise, foreign objects can affect radiant color.
b. LED can’t be in contact with acetate、 trichloroethylene, acetone、 sulfur、 nitride、 acid、 alkali、 salt. These matters can destroy LED.
3.3 Sealing
a. Sealing glue can’t contain sulfur,because these matter can affect fluorescence powder poisoning.
b. When using normal sealing glue, recommended will be operated life for 168hrs under normal temperature.
3.4 Storage
a. Don’t open the moisture proof bag before ready to use the LEDs.
b. The LEDs should be kept at 30℃ or less and 60%RH or less before opening the package. The max. period before opening the package is 1 year. c. After opening the package, the LEDs should be kept at 30-35%RH or less, and it should be used within 3 days. If the LEDs should be kept at 30-35%RH or more, and it should be used within 4 hours.
d. If the LEDs be kept over the conditions of 20%, baking is required before mounting. Baking condition as below: 70±5℃ for 12 hours for bulk goods, 105±5℃ for 1 hours for roll goods.
e. The environment have no acid、alkali、corrosive gas、intensively shake and high magnetic field.
3.5 Test
a. Customer must apply the current limiting resistor in the circuit so as to drive the LEDs within the rated current. Otherwise slight voltage shift maybe will cause big current change and burn out will happen.
b. Also, caution should be taken not to overload the LEDs with instantaneous high voltage at the turning ON and OFF of the circuit.
c. The reverse voltage mustn’t exceed 5v when lighting on or testing the LED, otherwise, LEDs will be damaged.
- Q:LED patches have several ways of welding. Which ones can be reflow? What can be done by eutectic welding? Is the welding of viscose and lens material is required?
- Of course, the reflow soldering is generally divided into three sections of six principle of oven temperature is 150 degrees, 190 degrees, 220 degrees, with a PC lens products can not reflow soldering, PC deformation at 150 degrees, can be heated by a soldering paste on the heating plate.
- Q:What is patch LED?
- Patch element. Very small, no pins, soldered directly to the circuit board. For example, the keyboard lights in a mobile phone are used in this way.
- Q:Patch LED beads can be bought in what place?
- Many LED packaging plants do patch LED, you can find the relevant manufacturers to contact, or go to the local electronic components market according to your needs
- Q:0603,0805,1206,3020,3528,5050,355 what is the current and voltage of these patch LED? Please give advice!
- The patch LED is also called SMD LED. Its principle of luminescence is to pass the current through the compound semiconductor. Through the combination of the electron and the hole, the excess energy will be released in the form of light to achieve the effect of luminescence.
- Q:How to detect LED SMD beads
- Now the LED lamp, drop it in general about 3V, so the general multimeter is not measuring it.
- Q:Patch LED market conditions
- Conventional monochrome SMD LED package sizes are 1206 (3215), 1004 (2510), 0805 (2012) and 0603 (1608). Chinese manufacturers can provide a minimum size of 0603, the thickness of only 0.3 mm. A smaller LED of 0402 (1005) is still in trial manufacture
- Q:What are the storage requirements of SMT patch LED (LED)?
- Moisture-proof packing- anti SMD LED in the transport and storage of moisture absorption, SMD LED shall be placed in sealed moisture-proof bag, inside put damp proof agent for protection, and placed the humidity humidity SMD display card packaging bag.
- Q:Patch LED light broken one, short circuit can use it?
- Can not casually short-circuit, according to the LED connection, but also to see the power supply voltage and current, all the LED can not flow. Any short circuit may cause excess LED to flow over or over, causing a chain reaction, a bad string,...... .
- Q:What is the difference in performance between the LED plug-in and the LED patch?
- 1, the patch is relatively easy to heat dissipation, can be directly welded on the aluminum substrate, heat faster.2, in general, there is a straw type shell, general lighting has front facing directivity, just look at it, brightness will be the biggest. The patch has a relatively wide divergence angle and is more suitable for fluorescent lamps.
- Q:Led lamp and Led patch two what is the difference between ah, the feeling is a patch of long service life, whether or not? 5-10 meters pan area lighting lamp selection Everbright shaped or patch shape?
- First of all, I want to say, in the same light emitting chip case, two is not what were, just a different process is a DIP plugin, a SMD patch process, the 3 floor of the right, just some high grade patch.
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high luminance 2835 CRI >80 performance light emitting diode LED
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 4000 PCS
- Supply Capability:
- 18000000 PCS/month
OKorder Service Pledge
OKorder Financial Service
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