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2021-01-28 11:22
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2021年1月28日发(作者:计量单位)





IPC-A-6 10


国际规范中英文对照








4.6.2 Heat sink-Contact


散热片< /p>


――


接触片



arget-Class 1,2,3


目标——等级



1,2,3


· Component and heatsink are in


full contact with the


mounting surface.


组件和散热片与安装表面完全


接触



· Hardware meets specified


attachment requirements.


部件满足规定的接触要求。




Figure



4-64


1. Heat sink


散热片



Acceptable-Class 1,2,3


可接受的——等级



1,2,3


· Component not flush.



组件不平齐



· Minimum 75% contact with


mounting surface.


至少有


75%


与安装表面接触

< br>


·


Hardware


meets


mounting


torque


requirements if


specified.


如果有规定,部件满足安装的转距要求



Figure



4-65


1. Gap 2. Heat sink


间隙散热片



Defect- Class 1,2,3


缺点——等级



1,2,3


· Component is not in contact


with mounting surface.


组件没有接触到安装表面



· Hardware is loose and can be


moved.


部件松弛可以移动。







Figure



4-66


1. Heat sink 2. Gap


散热片间隙



5.1 Orientation


方向



5.1.1 Orientation-Horizontal


方向——水平



Target- Class 1,2,3


目标——等级


1



2



3


?Components are centered


between their lands.


组件位于焊盘中央



?Component markings are


discernible.


组件标识清晰可见



?Nonpolarized components are


oriented so that


markings all read the same way (left-to-right


or top-to-bottom).


Figure



5-1


无极性组件的方向应使其标识


都能按同样方式进行辨识



(从左到右或从上到下)





Acceptable- Class 1,2,3


可接受的——等级



1



2


3


?Polarized and multilead


components are oriented


correctly.


有极性和多引脚的组件应按正确


方向安装。



?When hand formed and


hand-inserted, polarization


symbols are discernible.


当手工成型及手插件时,极性符号可以辨识。



?All components are as specified and terminate to



Figure



5-2 correct lands.


所有组件都符合规定并连接到


正确的焊盘上。



?Nonpolarized


components


do


not


need


to


be


oriented


so


that


markings


all


read the same way(left-to right or top to-bottom).


无极性的组件不需要按同样的方向,


只要标识可按相同方向辨识即可


(从左到右


或从上到下)


.


5.1.1 Orientation-Horizontal(cont.)


方向——水平(续)



Defect- Class 1,2,3


缺点——等级


1


2



3


?Component is not as specified


(Wrong part).


组件不符合规定(组件错误)



?Component not mounted in


correct holes.


组件没有安装在正确的孔中。



?Polarized component mounted


backwards.


有极性组件安装方向相反。



?Multileaded component not oriented correctly.



Figure



5-3


多引脚组件的安装方向不正


确。




5.1.2 Orientation-Vertical


方向——垂直



Target- Class 1,2,3


目标——等级


1



2



3


?Nonpolarized comp


onent


markings read from the top


down.


无极性组件的标识可以从上至


下辨识



?Polarized markings are


located on top.


极性标识位于顶部


.




Figure



5-4



Acceptable-Class 1,2,3


可接受的——等级


1



2



3


?Polarized


part


is


mounted


with


a long ground lead.


极性组件安装时有长的接地引脚



?Polarized marking hidden.



极性标识被隐藏起来



?Nonpolarized component


markings read from bottom to


top.


无极性组件标识可以从底至上辨识。



Figure



5-5


Defect-Class 1,2,3


缺点——等级


1



2



3


?Polarized


component


is


mounted


backwards.


极性组件安装反向。









Figure



5-6



5.2 Mounting


安装



5.2.1


Mounting-Horizontal-Axial


Leaded-Supported Holes


安装——水 平——轴向引脚——有


支撑孔



Target-Class 1,2,3


目标——等级



1


2



3


?The entire body length of the component is in



contact with the board surface.


整个组件本体长度与线路板表面完全接触



?Components required to be mounted off the board are ,at least


1.5mm[0.059 in]from the board surface



e.g., high heat dissipating.


需要离开线路板表面安装的组件至少要离开线路板



Figure



5-7


平面


1.5mm


0.059


in



,如高散热< /p>


器件


.








Figure



5-8


5.2.1


Mounting-Horizontal- Axial


Leaded-Supported Holes(cont.)


安装——水平——轴对称引脚—


—有支撑孔



Acceptable-Class 1,2


可接受的——等级



1



2



3


?The


maximum


space


between


the


component and the


board surface does not violate the requirements for



Figure



5-9 ((H) is a


lead protrusion(see 5.2.7)or component height(H).


user-determined dimension.)


组件与线路板平面之间的最大间距不应违反引脚突出(见


5.2.7

)或组件


高度(


H


)的要求。


(高度(


H


)是由使用者决定的尺寸)



Process Indicator-Class 3


程序指示——等级



3


?The


farthest


distance


between


the


component


body


and


the


board(D)


is larger than 0.7mm[0.028 in].


组件本体与线路板之间的最大的距离(

< p>
D


)超过


0.7mm


(< /p>


0.028 in





Defect-Class 1,2,3


缺点——等级



1


2



3


?Components


required


to


be


mounted


above


the


board


surface


are


less


than 1.5mm[0.059 in]


要求离开线路板 表面安装的组件与线路板的距离小于


1.5mm



0.059


in



.




5.2.2


Mounting-Horizontal-Axial


Leaded-Unsupported Holes


安装— —水平——轴向引


脚——无支撑的孔



Target-Class 1,2,3


目标——等级



1.2.3


?The entire body length of the


component is in


contact with the board


surface.


整个组件本体长度与线路板表面完全接触


.


?Components required to be mounted off the board are



at minimum 1.5mm[0.059 in] from the board


Figure



5-10 surface



e.g. ,high heat


dissipating.


Plating in barrel


需要离开线路板表面安装的组件至少


要离开线路板平



孔壁上没有电镀面


1.5mm



0.059 in



,如高散热器件


.



Components required to be mounted off the board are provided with lead

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