protel封装(国外英文资料).doc

protel封装(国外英文资料) Summary of Protel component package Parts packaging refers to the indicator of the actual parts is welded to the circuit board and the appearance of the position of the solder joints. Is the pure concept of space. So different elements can share the same parts package, the same element can also have different packaging parts. As a traditional needle type resistance, the element size is large, the circuit board must be drilled to accommodate components, upon completion of the drilling, insert, and tin or tin spraying (or hand welding), high cost, newer designs are used in surface mount small volume type element (SMD) of the element without drilling, steel film semi fused solder paste into the circuit board, and then put on the SMD element, can be welded on the circuit board. The resistance of AXIAL Non polar capacitor RAD Electrolytic capacitor RB- Potentiometer VR Diode DIODE Triode TO Power supply block 78 and 79 series TO126H and TO-126V Field effect transistor and transistor. D44 D37 D46 rectifier bridge Single row multi pin socket CON SIP Dip component DIP Crystal XTAL1 RES1, RES2, resistance: RES3, RES4; package properties for the axial series Non polar capacitor: cap; package properties for the RAD-0.1 to rad-0.4 Electrolytic capacitor: electroi; package properties for the rb.2/.4 to rb.5/1.0 Potentiometer: Pot1, pot2; package properties for the VR-1 to vr-5 Diode: package properties for the diode-0.4 (low power) diode-0.7 (high power) Transistor: package properties common for TO-18 (ordinary transistor) to-22 (high power transistor (TO-3) power Darin A tube) Power supply block has 78 and 79 series; 78 series such as 780578127820 79 series of 790579127920. The encapsulation property of common to126h and to126v Bridge: BRIDGE1, BRIDGE2: series of package properties for the D (D-44, D-37, D-46) Resistance: AXIAL0.3-AXIAL0.7 where 0.4-0.7 refers to the resistance length, AXIAL0.4 general use Ceramic capacitors: RAD0.1-RAD0.3. The 0.1-0.3 capacito