YUANNENGJI SMD LEDs are widely used in daily life and are usually used for lighting. Many people have no idea how to determine the positive and negative poles of SMD LEDs.
SMD LED-Distribution
Općenito, SMD LED manufacturers use red, green and blue when producing SMD LED displays. According to the different distribution positions of SMD LEDs, they can be divided into high-directional SMD LEDs, standard SMD LEDs and scattered SMD LEDs. High directivity is a pointed epoxy package or a package with a metal reflective cavity without any scattering agent. It has strong directivity and can be used as a local lighting source.
The standard type is usually used as an indicator light, a njegov polu-ugao vrijednosti je između 20° i 45°. Raspršeni tip znači da je kut gledanja indikatorne diode veći, i polu-ugao vrijednosti je između 45° i 90° ili veći.
SMD LED-Features
SMD LED diode se prema svjetlosnoj jakosti i radnoj struji dijele na obične LED diode, one čija je svjetlosna jakost između 10-100 mcd nazivaju se LED diode velike svjetline.
Radna struja uobičajenih SMD čipova je od desetaka mA do desetaka mA, a radna struja čipova male struje je ispod 2 mA. SMD čipovi imaju prednosti male veličine, dug životni vijek, niska potrošnja energije, velika svjetlina, ekološki prihvatljivi, prikladni za masovnu proizvodnju, izdržljivi i pouzdani, brzo reagiraju, štednja energije, otpornost na udarce, otporni na udarce, visoka rezolucija, snažna dizajnerska prilagodljivost, itd. tijekom korištenja, and are widely used in the current industrial field.
SMD LED-color classification
With the development of society, the application of SMD LED is becoming more and more extensive, which makes the types, styles and performance of SMD LED continue to increase. According to SMD LED, it can be divided into: orange, red, zelena, yellow-green, pure green, standard green, blue light, white light and other different types. Some SMD LEDs also contain chips of two or three colors.
According to whether the light-emitting diode is doped with scattering agent, colorless or colored, SMD LEDs can be divided into four types: colorless transparent, colored transparent, colored scattering, and colorless scattering.
SMD LED-positive and negative identification SMD LED positive and negative identification is particularly important, and the brightness of the lamp depends entirely on the SMD LED. Kako prepoznati pozitivni i negativni pol SMD LED-ica: Metoda promatranja: pogledajte odozdo, jedna strana obojene linije je negativni pol, a druga strana je pozitivni pol; LED diode većih dimenzija imat će neke oznake u blizini polova, poput odrezanih kutova, sprej boje, ili različitih veličina pinova, obično s oznakama, mali i kratki pinovi su negativni polovi; male dimenzije 0805 i 0603 paketi imaju T-oblik ili simbol obrnutog trokuta na dnu, vodoravni T je pozitivni pol; strana simbola trokuta je bliže pozitivnom polu, a kut je bliže negativnom polu.