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常用封装2(国外英文资料)
常用封装2(国外英文资料)
PCB components are commonly packaged with 2010-03-01 19:54/z/htm
First, make sure your schematics are properly connected. All components are numbered and encapsulated. If not, select Annotate from the TOOLS... This option labels the component and automatically generates the table display label result, then confirms the package:
Resistance: AXIAL0.3-AXIAL0.7, where 0.4-0.7 refers to the length of resistance, usually AXIAL0.4
Potentiometer VR 1-5
Non-polar capacitor: RAD0.1-RAD0.4. Where 0.1-0.4 refers to the size of the capacitor, usually RAD0.1
Electrolytic capacitor: RB.1/.2-RB.4/.8, where.1/.2-.4/.8 refers to the size of capacitors. General 100uF use
RB.1/.2100uF-470uF uses RB.2/.4, 470uF uses RB.3/.6
Diode: DIODE0.4-DIODE0.7, in which 0.4-0.7 refers to diode length, generally used DIODE0.4
Light emitting diode: RB.1/.2
Integrated block: DIP8-DIP40, where the 8-40 finger has many feet, and the 8 foot is the DIP8 chip resistor
0603 indicates that the package size has nothing to do with the specific resistance, but the package size is related to power, usually
0201 1/20W
0402 1/16W
0603 1/10W
0805 1/8W
1206 1/4W
What is the relation between the capacitance and the shape of the resistor and the package?:
0402=1.0x0.5
0603=1.6x0.8
0805=2.0x1.2
1206=3.2x1.6
1210=3.2x2.5
1812=4.5x3.2
2225=5.6x6.5
About parts packaging, we mentioned earlier, except for DEVICE. The components in the LIB library, as well as other library components, already have fixed component encapsulation, because the components in the library come in many forms: illustrated with transistors:
Transistors are one of our commonly used components, in DEVICE. LIB library, just only NPN and PNP, but in fact, if it is NPN 2N3055 that it could be the iron shell of TO - 3, if it is NPN 2N3054, it is possible that iron TO-66 or TO-5, and learn to use the CS9013, TO-92A, TO-92B, and TO-5 TO-46, TO-52, and so on, the myriads of changes.
There is a resistance in the DEVICE library, it is si
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