Werner,
Molex are a large manufacturer, here are the materials:
Physical
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=289&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Housing
Material
LCP Liquid Crystal Polymer, Glass-filled
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=367&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Color
White
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=297&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Flammability
UL 94V-0
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=142&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Contact
Phosphor Bronze (CuSn)
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=143&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Plating
Contact
Gold (Au)
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=184&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Plating Tail
Tin (Sn), Lead-free
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=145&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Under Plating
Nickel (Ni)
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=147&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Durability
[mating cycles] min.
30 cycles
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=148&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Temperature
Range
-55°C to +85°C
Mechanical
Contact Retention Force-min. (per circuit)
3.92N (0.88 lb)
<http://www.molex.com/cgi-bin/bv/molex/jsp/products/featurehelp.jsp?Fam=sock
etspn&FeatureID=134&BV_SessionID=@@@@0486884617.1159575927@@@@&BV_EngineID=c
ccfaddimefdfhhcflgcehedffgdfmk.0&channel=Products&Lang=en-US> Designed In
Millimeters
Mounted Height
4.00mm (.157")
Mounted Width
30.40mm (1.197")
Here is a link to the page in their catalog:
http://tinyurl.com/hc3hu
There are links on the left of the page for tech assistance etc which you
may need.
Have a great weekend Werner,
Kind regards,
John
_____
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Friday, September 29, 2006 5:11 PM
To: [log in to unmask]; [log in to unmask]
Subject: Re: [TN] Memory chip sockets
Hi john,
The sockets are to install/snap-in memory chips into laptop computers. They
are 144 I/O with one inside row and one outside row of gullwing-shaped
leads.
What is of particular interest is the material used for the socket body
(CTE, Tg) and what kind of compliancy these leads have.
Werner
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