九九热在线精品,热99精品在线,国产精品久久久久电影,国产亚洲欧美日韩综合另类,九九热免费在线观看,亚洲精品免费观看,99视频免费播放

  
Location:Home > News Center >

Newsdetail

    Application Notice
    author:管理員   addtime:2010-07-02 17:14:31.000   hits:9393

    Application Notice
     

    (1) FORMING:   
        1.Please don't form the LED after soldering.If forming is necessary,it must be done before soldering.   
        2.Any unsuitable stress applied to the epoxy body may break bonding wires in LED.   
        3.The minimum distance for the place to bend the lead frame is 2mm from the base of resin.  
    (2) SOLDERING:   
        1.Soldering Bath -260℃±5℃ within 5 seconds.  
    Soldering Iron- Under 30W within3 seconds.(1.6mm from epoxy body)   
        2.Don't apply any force or mechanical stress onto the leads or epoxy body during soldering heat is remained.   
        3.If one line of LEDs are soldered by using a soldering iron,don't solder the leads of the LED at the same time.   
        4.It needs three minutes to cool down to normal room temperature.  
    (3) CLEANING:    
        1.Use alcohol,freon TE or chlorosen to clean LED at normal temperature for less than 1 minute.   
        2.Don't use unspecified chemical liquid because it may cause crack or haze on the surface of the epoxy body.  
    (4) PREVENTING OVER CURRENT:   
        1.In order to operate LED in stable condition,please put protective resistors less series.   
        2.Resistor value can be determined by the formula   
            R=(Vs-VF)/ IF           Where Vs=Source Voltage   
                                            VF=Forward Voltage of LED   
                                            IF=Recommended Current of LED(10~20mA)  
    (5) BRIGHTNESS:   
        1.For the purpose of obtaining uniform brightness,LEDs shall be kept at the same current.   
        2.It is useful for uniform brightness if you use larger sauce voltage and protective resistor.

德钦县| 金塔县| 北海市| 宁远县| 浦城县| 乌审旗| 隆德县| 乐平市| 武定县| 罗田县| 商河县| 丰宁| 鄂州市| 芜湖市| 凤庆县| 海门市| 同江市| 嘉峪关市| 哈巴河县| 新沂市| 平南县| 高雄县| 咸阳市| 六枝特区| 商城县| 兰坪| 四子王旗| 南岸区| 松滋市| 阜新市| 惠东县| 松阳县| 北京市| 昌邑市| 大竹县| 西城区| 北辰区| 横山县| 信丰县| 丹阳市| 迁西县|