欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號: CPW484-0570-22AB95L
元件分類: 插座
英文描述: BGA484, IC SOCKET
封裝: ROHS COMPLIANT
文件頁數(shù): 3/8頁
文件大小: 1282K
代理商: CPW484-0570-22AB95L
Socket Mounting Recommendations and Reflow Profile
E-tec Interconnect Ltd, Industrial Zone C, CH-1072 Forel (Lavaux), Switzerland
Phone +41-21-781 08 10 www.e-tec.com info@e-tec.com
E-tec Socket Mounting Recommendations
PRELIMINARY
1
Purpose
This document is meant to serve as a guide for mounting E-tec surface mount device (SMD)
sockets to the printed circuit board (PCB). The recommendations described here are guidelines
only, and modifications may be needed for your particular socket, PCB, and process.
Application
The sockets this document applies to are as follows: Clam Shell, Knob Lock, Screw Lock, Twist
Lock, Quick Lock and Lever Lock in SMD style. These sockets utilize the E-tec patented spring-
pin technology. This technology allows the pins to be soldered to the PCB while still providing
compliance to the device under test (DUT) via springs located at the other end of the pin. The
pins themselves do not have solder pre-forms as a BGA would with its solder balls. However, the
sockets are designed to mount to the same PCB footprint and pads as required by the BGA, or
any other IC package the socket was designed for (except if locating pegs are used; see ‘Locating
Pegs’ section of this document). When compared to mounting a BGA, an extra volume of solder
paste is required to mount the sockets to the PCB. To effect this, a properly dimensioned stencil
is required. Once the paste has been applied, a standard reflow process is then used to solder the
socket to the PCB. After the socket is verified to have proper electrical connection to the PCB,
the system is then ready to be used.
Locating Pegs
Although designed to mount to the same footprint as the IC, with just a small amount of
additional keep-out area, E-tec sockets can also be offered with locating pegs. The sockets are
typically mounted with two locating pegs, which require two thru-holes drilled into the PCB.
These pegs help to align the socket on the PCB, and hence align the socket’s pins to the PCB’s
pads, during the soldering process. Furthermore, plating the thru-holes allows the locating pegs
to be soldered to the PCB for better mechanical stability during everyday use and handling of the
socket. If the PCB design permits, E-tec recommends the use of these locating pegs. For fine-
pitch, low pin-count sockets without locating pegs, the mechanical strength of the solder joints
may be insufficient. In these cases, it is recommended to epoxy the socket body to the PCB. 3M
Scotch-Weld 2216 B/A is a suitable epoxy. In any case, the proper volume of solder paste is
required to ensure mechanical and electrical integrity. Recommended stencil dimensions are
given in the next section of this document.
相關(guān)PDF資料
PDF描述
CCW128-0628-12CB95 BGA128, IC SOCKET
CCW484-1030-26AB95 BGA484, IC SOCKET
CCW484-1070-22AB95 BGA484, IC SOCKET
CCW484-1530-26AB95L BGA484, IC SOCKET
CUW049-1570-07CB95L BGA49, IC SOCKET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CP-WAN-B300-W 制造商:Digi International 功能描述:DIGI CP-WAN ROUTING GATEWAY - ANTENNAS INCLUDED WITH INTERNA - Boxed Product (Development Kits)
CP-WAN-B311 制造商:Digi International Inc 功能描述:DIGI CP-WAN ROUTING GATEWAY - EVDO VERIZON WITH US POWER SUP - Bulk
CP-WAN-B311-8 制造商:Digi International Inc 功能描述:DIGI CP-WAN ROUTING GATEWAY - EVDO VERIZON WITH US POWER SUP - Bulk
主站蜘蛛池模板: 竹山县| 响水县| 高州市| 邵东县| 荃湾区| 铁力市| 景德镇市| 上蔡县| 修武县| 靖安县| 盖州市| 横山县| 中方县| 张家口市| 西盟| 济宁市| 壤塘县| 广丰县| 松桃| 合山市| 凌源市| 施秉县| 古交市| 双流县| 天水市| 陆丰市| 辽阳市| 北安市| 仙游县| 岳阳市| 上思县| 饶平县| 天全县| 简阳市| 宁明县| 佳木斯市| 泰顺县| 东海县| 唐山市| 合阳县| 伊川县|