1、 EIA SPECIFICATION Specification for Mini Multilane 4X Unshielded Shell and Plug Connectors EIA-975 (Was SFF-8087, Rev 2.4, dated April 16, 2011) March 2015 Electronic Components Industry Association EIA-975 ANSI/EIA-975-2015 Approved: March 18, 2015 NOTICE EIA Engineering Specifications and Publica
2、tions are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular nee
3、d. Existence of such Specifications and Publications shall not in any respect preclude any member or nonmember of ECIA from manufacturing or selling products not conforming to such Specifications and Publications, nor shall the existence of such Specifications and Publications preclude their volunta
4、ry use by those other than ECIA members, whether the standard is to be used either domestically or internationally. Specifications and Publications are adopted by ECIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, ECIA does not assume any liabilit
5、y to any patent owner, nor does it assume any obligation whatever to parties adopting the Specification or Publication. This EIA specification is considered to have International Standardization implications, but the International Electrotechnical Commission activity has not progressed to the point
6、where a valid comparison between the EIA standard and the IEC document can be made. This Specification does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Specification to establish appropriat
7、e safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5290, formulated under the cognizance of the CE-2.0 Committee on EIA National Connector and Socket Standards, and previously published by the SFF Committee as SFF-8
8、087.) Published by Electronic Components Industry Association 2015 EIA Standards & Technology Department 2214 Rock Hill Road, Suite 265 Herndon, VA 20170 PLEASE ! DONT VIOLATE THE LAW! This document is copyrighted by the ECIA and may not be reproduced without permission. Organizations may obtain per
9、mission to reproduce a limited number of copies through entering into a license agreement. For information, contact: IHS 15 Inverness Way East Englewood, CO 80112-5704 or call USA and Canada (1-877-413-5186), International (303-397-7956) (This page left blank) i CONTENTS Clause Page Forward . iii Ba
10、ckground . iv 1 Introduction . 1 1.1 Scope . 1 2 Applicable documents . 1 2.1 EIA specification 1 2.2 Industry document 1 2.3 SFF specifications . 1 3 Conventions 2 4 Description 2 4.1 General view . 2 4.2 Configurations . 3 5 Connector dimensions . 4 5.1 Free (plug) cable connector 4 5.2 Fixed (rec
11、eptacle) right angle shell . 6 5.3 Fixed (receptacle) right angle connector with shell 8 5.3.1 Fixed (receptacle) right angle connector with shell footprint . 9 5.4 Fixed (receptacle) straight shell 10 5.5 Fixed (receptacle) straight connector with shell . 12 5.5.1 Fixed (receptacle) straight shell
12、footprint . 13 5.6 Keying (optional) 14 ii CONTENTS (continued) Figure Page 4.1 General view . 3 5.1 Free (plug) cable connector 4 5.2 Fixed (receptacle) right angle shell . 6 5.3 Fixed (receptacle) right angle connector with shell 8 5.3.1 Fixed (receptacle) right angle connector with shell footprin
13、t . 9 5.4 Fixed (receptacle) straight shell 10 5.5 Fixed (receptacle) straight connector with shell . 12 5.5.1 Fixed (receptacle) straight shell footprint . 13 5.6 Keying (optional) 14 Table 3.1 Conventions 2 4.2 Configurations . 3 5.1 Free (plug) cable connector dimensions . 5 5.2 Fixed (receptacle
14、) right angle shell dimensions 7 5.3 Fixed (receptacle) right angle connector with shell dimensions . 8 5.3.1 Fixed (receptacle) right angle connector with shell footprint dimensions 9 5.4 Fixed (receptacle) straight shell dimensions . 11 5.5 Fixed (receptacle) straight connector with shell dimensio
15、ns 12 5.5.1 Fixed (receptacle) straight shell footprint dimensions 13 5.6 Keying (optional) dimensions . 15 iii Foreword (This foreword is informative only and is not part of this specification.) This Specification is from EIA Standards Proposal No. 5290, formulated under the cognizance of EIA CE-2.
16、0, Committee on Connector and Socket Standards. This project was conducted in liaison with the SFF Committee as representing the disk drive industry. Utilization of this Standard is intended to eliminate misunderstandings or confusion between a manufacturer and user with respect to product performan
17、ce and testing requirements for this as well as other possible applications. The development work on this specification was done by the SFF Committee, an industry group. The membership of the committee since its formation in August 1990 has included a mix of companies, which are leaders across the i
18、ndustry. iv Background Abstract: This specification defines the physical interface and general performance requirements for the Unshielded Mini Multilane connector. One such use is as the Serial Attached SCSI Mini SAS 4i (wide compact internal connector). This specification is made available for pub
19、lic review, and written comments are solicited from readers. Comments received by the members will be considered for inclusion in future revisions of this document. The description of a connector in this specification does not assure that the specific component is actually available from connector s
20、uppliers. If such a connector is supplied it must comply with this specification to achieve interoperability between suppliers. NOTE - The users attention is called to the possibility that implementation to this Specification may require use of an invention covered by patent rights. By publication o
21、f this specification, no position is taken with respect to the validity of any such claim(s) or of any patent rights in connection therewith. If a patent holder has filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to appl
22、icants desiring to obtain such a license, then details may be obtained from the specification developer. EIA-975 Page 1 Specification for Mini Multilane 4X Unshielded Shell and Plug Connectors (From EIA Standards Proposal No. 5290, formulated under the cognizance EIA CE-2.0 Committee on National Con
23、nector and Socket Standards, and previously published by the SFF Committee as SFF-8087.) 1. Introduction 1.1 Scope 1.1.1 This specification defines the plug, guide/strain relief shell, and latching requirements for the Mini Multilane Unshielded Shell and Plug Connectors based upon the primary elemen
24、ts defined in EIA-974. 1.1.2 The SFF Committee activities support the requirements of the storage industry, and it is involved with several standards. 2 Applicable documents The following documents form a part of this specification to the extent indicated herein. In the event of conflict between thi
25、s specification and the referenced documents, this specification shall take precedence. 2.1 EIA specification EIA-974 Mini Multilane 10 Gb/s 4X Common Elements Connectors 2.2 Industry document T10/1601D SAS 1-1 (Serial Attached SCSI - 1.1) 2.3 SFF specifications SFF-8410 High Speed Serial Testing fo
26、r Copper Links EIA-975 Page 2 3 Conventions The ISO convention of numbering is used i.e., the thousands and higher multiples are separated by a space and a period is used as the decimal point. This is equivalent to the English/American convention of a comma and a period. Table 3.1 - Conventions Engl
27、ish French ISO 0.6 0,6 0.6 1,000 1 000 1 000 1,323,426.9 1 323 426,9 1 323 462.9 4 Description 4.1 General view The connector system is based upon a common footprint for the receiving body. The footprint positioning holes contain the critical dimensions for locating the receptacle shell. The recepta
28、cle shell also functions as the guide and strain relief for the free (plug) cable connector interface. Figure 4.1 illustrates an example of one such configuration. 4.1.1 This specification defines the free (plug) cable connector, guide/strain relief, and latching requirements for the Unshielded Mini
29、 Multilane connector. This specification plus the mating interface and connector footprint defined in EIA-974 defines the requirements to enable functional multiple sourcing. 4.1.2 The fixed (receptacle) connector provides positive retention along with ease of insertion and removal. The guide/strain
30、 relief is incorporated in the shell and works together with the free (plug) cable connector and latching mechanism to ensure that stress induced by normal cable routing and management is not passed through to the solder joints that attach the receptacle body to the printed circuit board. 4.1.3 The
31、latch is designed to prevent the free (plug) cable connector from bottoming, and a hard stop has been defined to prevent bottoming out should the free (plug) cable connector be out of spec. 4.1.4 This specification defines the contact range that the retention scheme has to provide to assure acceptab
32、le connector performance. 4.1.5 The low profile and small size is well suited to high-speed transmission applications where space is limited. EIA-975 Page 3 Figure 4.1 - General view 4.2 Configurations Table 4.1 lists the configurations described in this specification. Table - 4.2 Configurations Des
33、cription Right Angle Straight 26-circuit Unshielded Mini Multilane Connector Y Y 36-circuit Unshielded Mini Multilane Connector Y Y 50-circuit Unshielded Mini Multilane Connector Y Y 68-circuit Unshielded Mini Multilane Connector Y Y Note The 36-circuit Unshielded Mini Multilane Connector is defined
34、 in SAS as the ”Mini SAS 4i” connector. EIA-975 Page 4 5 Connector dimensions The dimensioning conventions are described in ANSI-Y14.5M, Dimensioning and Tolerancing. All dimensions are in millimeters. Dimension related requirements for the connector system addressed in this document are specified i
35、n the tables and figures in this clause. 5.1 Free (plug) cable connector Figure 5.1 Free (plug) cable connector EIA-975 Page 5 Table 5.1 Free (plug) cable connector dimensions Designator Description Circuits Tolerance26 36 50 68 Dimensions, millimeters C01 Interface Width 11.60 15.60 21.20 28.40 0.1
36、0 C03 Paddle Card Thickness 1.00 = = = 0.10 D01 Plug Lower Shroud Width 10.33 14.33 19.93 27.13 0.13 D02 Latch Tab Height (When Free) 5.45 = = = MinimumD02 Latch Tab Height (When Tab is Pressed) 5.15 = = = MaximumD03 Latch Body Width 9.00 = = = 0.13 D04 Plug Key Surface 1.00 = = = 0.05 D05 Plug Clea
37、rance to Connector 4.00 = = = 0.10 D06 Plug Lead in to Connector 4.88 = = = 0.15 D07 Plug Shroud Length 6.83 = = = 0.10 D08 Plug Datum B to Latch Tab 1.80 = = = 0.10 D09 Latch Tab Thickness 0.20 = = = 0.05 D10 Anti-Rotation Rib Width 1.00 = = = 0.05 D11 Plug Datum B to Shroud Start 10.13 = = = 0.13
38、D12 Plug Shroud Length 1.83 = = = 0.13 D13 Plug Datum A to Plug Stop 2.25 = = = MinimumD14 Plug Top Surface to Latch 3.90 = = = MaximumD15 Plug Stop Width 3.75 = = = MinimumD16 Plug Body Thickness 6.95 = = = 0.10 D17 Plug Body Width 13.20 17.20 22.80 30.00 0.10 D19 Plug Datum D to Latch Tab 3.30 = =
39、 = 0.10 D20 Latch Tab Width 1.13 = = = 0.10 D21 Plug Length 28.00 = = = MinimumD22 Plug Face 9.76 13.76 19.36 26.56 0.13 D23 Plug Stop Height 0.60 = = = MinimumD24 Plug Lead in Angle 20 = = = 1 D25 Datum B to Edge of Paddle Card 16.50 = = = Basic D26 Datum A to Shroud Lead-in 1.93 = = = 0.10 D27 Dat
40、um A to Top of Plug 2.98 = = = 0.05 D28 Lower Shroud Width 1.50 = = = 0.10 D29 Datum B to End of Anti-Rotation Rib 1.50 = = = 0.05 D30 Radius 1.00 = = = 0.25 D31 Anti-Rotation Rib Lead-in (Chamfer or Radius) 0.25 = = = 0.05 EIA-975 Page 6 5.2 Fixed (receptacle) right angle shell Figure 5.2 - Fixed (
41、receptacle) right angle shell EIA-975 Page 7 Table 5.2 Fixed (receptacle) right angle shell dimensions Designator Description Circuits Tolerance 26 36 50 68 Dimensions, millimeters E01 Datum C to Peg 3.50 = = = Basic E02 Datum C to Peg 5.50 = = = Basic E03 Datum C to Plug Stop 8.25 = = = Basic E04 D
42、atum C to Back of Shell 1.75 = = = 0.13 E05 Datum A to Slot 2.97 = = = 0.03 E06 Slot Width 1.10 = = = 0.03 E07 Datum C to Passive Latch 5.76 = = = 0.13 E08 Top of Shell to Passive Latch 1.89 = = = 0.13 E09 Slot Depth 1.58 = = = Basic E10 Datum A to Shell Inside 8.22 = = = 0.10 E11 Tab Length 0.95 =
43、= = 0.13 E12 Datum C to Latch Slot 6.00 = = = Basic E13 Latch Slot Width 0.75 = = = 0.05 E14 Shell CL to Latch Slot CL 2.74 = = = Basic E15 Latch Slot Length 2.13 = = = 0.05 E16 Passive Latch Width 9.60 = = = 0.13 E17 Width between Keys 9.50 = = = 0.10 E18 Width of Shell 13.55 17.55 23.15 30.35 0.10
44、 E19 Datum C to Peg 6.50 = = = Basic E20 Tab Width 1.28 = = = 0.13 EIA-975 Page 8 5.3 Fixed (receptacle) right angle connector with shell Figure 5.3 - Fixed (receptacle) right angle connector with shell Table 5.3 - Fixed (receptacle) right angle connector with shell dimensions Designator Description
45、 Circuits Tolerance 26 36 50 68 Dimensions, millimeters A08 OAH Connector Housing 5.35 = = = 0.13 F01 Overall Height of Shell 8.47 = = = 0.13 F02 Shell Plug Stop to Connector 11.07 = = = 0.10 F05 Connector to Edge of PCB 25.40 = = = 0.13 F06 Shell to Edge of PCB 2.83 = = = 0.13 EIA-975 Page 9 5.3.1
46、Fixed (receptacle) right angle connector with shell footprint Figure 5.3.1 - Fixed (receptacle) right angle connector with shell footprint Table 5.3.1 Fixed (receptacle) right angle connector with shell footprint dimensions Designator Description Circuits Tolerance 26 36 50 68 Dimensions, millimeter
47、s A10 Peg to Peg 12.00 16.00 21.60 28.80 Basic B03 Hole Diameter 1.55 = = = 0.05 B04 Peg CL to Edge of PCB 16.80 = = = 0.13 G01 Shell Hole to Hole 13.80 17.80 23.40 30.60 Basic G02 Hole Diameter 0.80 = = = 0.05 G03 Datum B to Shell Hole 5.72 = = = Basic G04 Datum B to Shell Hole 9.22 = = = Basic G05
48、 Datum B to Shell Hole 12.22 = = = Basic G06 Datum B to Shell Hole 11.22 = = = Basic G07 Datum B to Shell Keep Out 3.40 = = = 0.13 G09 Shell Keep Out 15.80 19.80 25.40 32.60 0.13 EIA-975 Page 10 5.4 Fixed (receptacle) straight shell Figure 5.4 Fixed (receptacle) straight shell EIA-975 Page 11 Table
49、5.4 Fixed (receptacle) straight shell dimensions Designator Description Circuits Tolerance 26 36 50 68 Dimensions, millimeters E05 Inside of Shell to Slot 2.97 = = = 0.03 E06 Slot Width 1.10 = = = 0.03 E08 Top of Shell to Passive Latch 1.89 = = = 0.13 E09 Slot Depth 1.58 = = = Basic E13 Latch Slot Width 0.75 = = = 0.05 E14 Shell CL to Latch Slot CL 2.74 = = = Basic E15 Latch Slot Length 2.13 = = = 0.05 E16 Passive Latch Width 9.60 = = = 0.13 E17 Width Between Keys 9.50 = = = 0.10 E1
