LED is the abbreviation of LightEmittingDiode , translated into Chinese as " Light Emitting Diode " . As the name suggests, this is a kind of semiconductor device that can emit light. Led is a semiconductor optoelectronic device, which has the characteristics of a semiconductor rectifying diode in addition to its luminescent properties. Moreover, light having a certain wavelength can be emitted with a positive bias applied. This luminescence characteristic occurs in the positive bias portion of the diode characteristic curve.
The structure of the LED is mainly composed of a PN junction chip, an electrode, and an optical system. When a forward bias is applied to the electrodes, electrons and holes are injected into the P region and the N region, respectively , when the unbalanced minority carriers are combined with the majority carriers. The excess energy is converted into light energy in the form of radiated photons.
The PN junction forms a predetermined barrier according to its terminal voltage. When the forward bias voltage is applied, the barrier decreases, and the majority carriers in the P and N regions diffuse toward each other. Since the electron mobility is much larger than the hole mobility, a large amount of electrons diffuse into the P region. It constitutes the injection of minority carriers in the P region. These electrons recombine with the holes on the valence band. The energy obtained during compounding is released in the form of light energy. This is the principle of PN junction illumination. Due to the large energy gap of the P region. The light radiation cannot be sent to the conduction band, so the absorption of light does not occur, so that it can be directly transmitted to the outside of the LED , thereby reducing the loss of light energy.
When the LED fluorescent lamp market is very active, the manufacturers are mainly divided into three categories: one is the original factory that makes LED chips , and the downstream is infiltrated into the downstream, and there is not much knowledge of circuit knowledge and LED fluorescent lamp power; the second category is the factory that used to be ordinary lighting. Into a new field, to understand some of the circuit knowledge; the three categories are completely new to the factory, they used to do other products or new ventures, have some understanding of LED power , and some do not understand. LED power LED fluorescent lamp is the most important member, improper selection, LED lamp performance can not play, or even normal use.
1.ANTENK FEMALE HEADER Series Receptacle Strips are a series of sockets offered in a multitude of sizes and profiles designed to satisfy most .100" pitch socket requirements. Available in Single, Dual and Triple row, they are offered in Straight, Right Angle, SMT, Bottom Entry and Pass Through PCB mounting styles. Each type has a specially designed contact system which uses a wiping mating action and produces a high normal force connection with gold, tin or selective gold plating. All are available with Standard or Hi-Temp Thermoplastic insulators. Our SMT offering is available with optional pick and place pads and tape & reel packaging.
2.Our products are widely used in electronic equipments,such as monitors ,electronic instruments,computer motherboards,program-controlled switchboards,LED,digital cameras,MP4 players,a variety of removable storage disks,cordless telephones,walkie-talkies,mobile phones,digital home appliances and electronic toys,high-speed train,aviation,communication station,Military and so on
2.54 Famale pin headers
SPECIFICATION
Current Rating: 3.0 Amp
Insulation Resistance: 1000M ohms min
Contact Resistance: 20M ohms max
Dielectric Withstanding: AC500V
Operating Temperature: -65°C to +125°C
Contact Material: Brass
Insulator Material: PBT,UL 94V-0 Black
Female Pin Headers,Pcb Female Connectors,Pin Connector Header,Oem Female Header
ShenZhen Antenk Electronics Co,Ltd , https://www.pcbsocket.com