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Product introduction
Light emitting diode is called LED for short. It is a kind of semiconductor diode. When an electron combines with a hole, it can radiate visible light, which can convert electrical energy into light energy. It can be used as an indicator light in circuits and instruments, or as a text or digital display.
characteristic
1. It is safer to use low-voltage power supply
2. About 40% less power consumption than energy-saving lamps
3. Small size, suitable for changeable environment
4. Short response time
5. No harmful metal mercury
6. Long service life
7. Rich colors and affordable prices
Product application
This product is widely used in all kinds of household appliances, all kinds of electronic products, all kinds of lighting, digital products, electronic communications, traffic indicators, urban lighting projects, etc. It is easy to operate and reliable.
Positive and negative pole pins: long pin is positive pole, short pin is negative pole, double color three pin middle pin is common terminal, common anode: middle pin is positive pole, common cathode: middle pin is negative pole.
Endless LED pin: Endless LED has two pins. ① The long pin is connected to the positive pole, and the short pin is connected to the negative pole. ② The short pin is connected to the positive pole, and the long pin is connected to the negative pole in bright green.
LED welding conditions:
(1) Soldering iron welding: the tip temperature of the soldering iron (maximum 30W) shall not exceed 280 ° C; The soldering iron must be grounded, and the static electricity cannot exceed the range; The welding time shall not exceed 3 seconds; The welding position shall be at least 3mm away from the colloid.
(2) Immersion welding: the maximum temperature of immersion welding is 260 ° C; Immersion welding time shall not exceed 3 seconds; The dip welding position shall be at least 3mm away from the colloid.
Pin forming method:
(1) The bracket must be 2mm away from the gel before it can be bent.
(2) The support forming must be completed by clamps or professionals.
(3) Support forming must be completed before welding.
(4) The support forming shall ensure that the pin and spacing are consistent with the circuit board.
LED installation method:
(1) Pay attention to the arrangement of the external lines of various devices to prevent incorrect polarity installation. The device shall not be too close to the heating element, and the working conditions shall not exceed the specified limit.
(2) Be sure not to install the LED when the pin is deformed.
(3) When it is decided to install in the hole, calculate the size and tolerance of the hole pitch of the hole and the circuit board to avoid excessive pressure on the bracket.
(4) When installing LED, it is recommended to use guide sleeve for positioning.
(5) Before the welding temperature returns to normal, the LED must not be subjected to any vibration or external force.
reminder:
Please forgive the slight color error caused by factors such as the photographing environment and light.
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