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

參數資料
型號: CCW896-1528-30AB95L
元件分類: 插座
英文描述: BGA896, IC SOCKET
封裝: ROHS COMPLIANT
文件頁數: 3/8頁
文件大?。?/td> 1287K
代理商: CCW896-1528-30AB95L
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PDF資料
PDF描述
CIS262-04TG PGA262, IC SOCKET
CIS268-01TG PGA268, IC SOCKET
CIS196-51GG PGA196, IC SOCKET
CIS204-49TT PGA204, IC SOCKET
CIS206-49TT PGA206, IC SOCKET
相關代理商/技術參數
參數描述
CCW-8-R250-G-LF-BLK 制造商:IRCTT 制造商全稱:IRC - a TT electronics Company. 功能描述:Commercial Grade Power Axial Wirewound Resistor
CCW-8-R250-J-LF-BLK 制造商:IRCTT 制造商全稱:IRC - a TT electronics Company. 功能描述:Commercial Grade Power Axial Wirewound Resistor
CCW-8-R250-K-LF-BLK 制造商:IRCTT 制造商全稱:IRC - a TT electronics Company. 功能描述:Commercial Grade Power Axial Wirewound Resistor
CCW9 功能描述:3/4" COMBINATION WRENCH,SAE,FL,P 制造商:apex tool group 系列:* 零件狀態:在售 標準包裝:6
CCW-9 制造商:IRCTT 制造商全稱:IRC - a TT electronics Company. 功能描述:Commercial Grade Power Axial Wirewound Resistor
主站蜘蛛池模板: 天等县| 崇礼县| 沿河| 南康市| 巴东县| 龙里县| 分宜县| 汉川市| 襄城县| 永胜县| 雷波县| 绵竹市| 兴国县| 富裕县| 邮箱| 郁南县| 济宁市| 吉林市| 望都县| 宜兰市| 邹城市| 蛟河市| 沈丘县| 特克斯县| 山东省| 靖宇县| 永州市| 正镶白旗| 嘉鱼县| 清原| 象山县| 绥阳县| 神木县| 苏尼特左旗| 广州市| 祁东县| 金溪县| 南澳县| 江阴市| 蛟河市| 宝鸡市|