ECA-540BAAC-1991-R1997.pdf
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1、EIA 54OBAAC 91 3234b00 0074403 7 W 3 O d i s W EIA SPECIFICATION ANSVEIA-540BAAC-1990 APnIOVEa January 22,1991 Detail Specification Nonmechanically Actuated Flexible Carrier Sockets for. Pin Grid Array for Use in Electronic Equipment EIA-540BAAC FEBRUARY 1991 ELECTRONIC IN DUSTRIES ASSOCIATION ENGIN
2、EERING DEPARTMENT I Approved For Use In The NECQ System 1. - Copyright Electronic Components, Assemblies consult with manufacturer. FIGURE 1B TERMINAL BODY AND TERMINATION LENGTH I Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS
3、 Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:51:07 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA 54OBAAC 91 323qbOO 0074408 b W EIA-540BAAC Page 3 T H I S DETAIL SPECIFICATION WAS PREPARED BY THE ELECTRONIC INDUSTRIES ASSOCIATIONS P-5.2 WORKI
4、NG GROUP ON SOCKETS SECTION ONE - SCOPE AND OBJECT 1.1 SCOPE The Pin G r i d Array Sockets of assessed quality covered by this detail specification shall have: a) Maximum enclosure dimensions (See Figure 1, I A and 18). b) Working voltage not to exceed 250 vob (mis). c) Current not to exceed 2 amper
5、es per pin. 1.2 OBJECT The object of this detail specification is to provide all nfon&on required for the identification and quality assessment of Pin Grid array sockets for the NECQ quality system. Using sectional specification EM-5406000 as a base. The information contained herein or by reference
6、is complete and sufficient for inspection purposes. SECTION TWO - GENERAL 20 GENERAL 21 The related documents, units, symbols, terminology, standards and values, preferred values, and markings are prescribed in Section Two of the PGA Socket Sectional Specification EIA-540D000 Copyright Electronic Co
7、mponents, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:51:07 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 540BAAC 91 m 3234600 0074409 B m EIA-540BAAC Pa
8、ge 4 22 EW PART NUMBERS O Each socket covered by this Detail Specification has been assigned a discrete part number. The part number consists of: E 540 - T - Standard PrefBc 1 (See 221) Genetic Specification Designator (See 222) (See 223) - 1 Sectionai Soecicaon Desicinator B A AD XXX X X X Blank O&
9、i Designator (See 224) Detail Desianaior Terminai Count 1 (See 226) Termination Type (See 227) Contact Finish a t Engagement Point (See 228) Contact Finish on Termination (See 229) Insertion Force Type (See 221 O) X r Copyright Electronic Components, Assemblies & Materials Association Provided by IH
10、S under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/30/2007 01:51:07 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A 540BAAC 91 m 3234600 0074430 4 m EIA-540BAAC Page 5 221 STANDARD PREFR All EIA Part Numbers shall begin wi
11、th the Imer F . 222 GENERIC SPECIFICATION NUMBER Generic Speutcation consists o f a three digit number assigned by IA staf. 223 SECTIONAL SPECIFICATION DESIGNATOR The sectional specflcation is indicated by use o f one letter. The letter 6 has been assigned to the PGA Socket specificaon. 2 2 4 BUNK D
12、ETAIL DESIGNATOR The blank detail specification is indicated by the use of one letter. The letter A has been assigned to the PGA Socket Blank Detail Specification. 2.25 DETAL SPECIFICATION DESIGNATOR The detail specification is designated by two letters, assigned by IA staf, starting with AA. 226 TE
13、RMINAL COUNT Three characters shall designate the number of terminals of the device and the footprint pattern. The first two characters shall be numerals designating the grid size of the device. For example “10“ designates a 10 X 10 grid, “11“ designates an 11 X 11 grid, etc. The third character sha
14、ll be the number “O“ if the socket contains the maximum number of contacts obtainable, or a letter for a partially filled array. Appendix A delineates the three character designations for known arrays. Note: If all letters of the alphabet have been used for the third character of a particular grid s
15、ize, then the first character shall be replaced with the number “9“, allowing another complete use of the alphabet as the third character. For example, “90R would depict a specific 10 X 10 array, whereas “91R“ would depict a specific 11 X 11 array. If this should not be enough codes the next descend
16、ing number shall be used, (e.g. 8,7, etc.) 227 TERMINATIONTYPE The termination type shall be designated by one letter as follows: Printed circuit termination Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001,
17、User=Wing, Bernie Not for Resale, 03/30/2007 01:51:07 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA 540BAAC 91 3234600 0074411 b EIA440BAAC Page 6 2.2.8 CONTACT FINISH AT ENGAGEMENT POINT Conma finish a t engagement point shall be designated by one letter as follows:
18、K : Gold Over Nickel P: Tln-lead - 0.76 micron (30 p) min. gold over 1.27 microns (SO p) to 3.81 microns (150 p ) max nickel - =/IO tn-lead 3 microns (i18 pa) nominal over 127 microns (50 p . ) to 3.81 microns (150 p9 copper or nickel 2.2.9 FINISH AT TERMINATION AREA Finish a t termination area shal
19、l be designated by one letter as follows: K: Gold Over Nickel P: Tin-lead R: Tin-iead - 0.76 mimn (30 p.) min. gold over 1.27 miaons (50 p) to 3.81 microns (150 p) mar. nicltel - =/IO tin-lead 3 microns (1 18 p ) nominal over 1.27 microns (50 p) to 3.81 microns (150 pa) copper or nidtel - 6/riO tln-
20、lead 3 microns (1 18 p) nominal over 1.27 microns (50 pa) to 3.81 microns (150 p) copper or nickel 221 O INSERTION FORCE DESIGNATOR Insertion force designator for the device shall be indicated by one letter as follows: A: Standard Insertion Force (Gold) E: Low Insertion Force (Gold) C: Standard Inse
21、rtion Force mn-iead) 221 1 CONTACT STYLE DESIGNATOR Contact style shall be designated by one number as follows: 1: Two piece contact A two piece contact assembly with a closed bottom seamless outer sleeve and muMnger inner spring contact. 3 : Sealed t w o piece contact A two piece contact assembly w
22、ith a mulnger inner contact and a closed bottom seamless outer sleeve. The lead entry sealed against external contaminants. Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale,
23、03/30/2007 01:51:07 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A SIOBAAC 91 3234600 0074412 B EIAQ40BAAC Page 7 23 24 25 2 6 ORDERINO INFORMATION A complete and Interchangeable Pin Grid Array S o c k e t may be ordered using the EM part number system ( 22) CERTFED
24、RECORDS OF RELEASED LOTS The requirements tor certified records of released lots am not applicable. DIMENSIONS The canfiguration of the Pin Grid Array Socket is optional within the limits of the specaied dimensions. The socket shall comply witti Figure 1,lA and 16. The mounting hole dimensiorrs shal
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