1、 EIA SPECIFICATION Specification for Mini Multilane 4X Shielded Shell and Plug Connectors EIA-976 (Was SFF-8088, Rev 3.2, dated April 16, 2011) March 2015 Electronic Components Industry Association EIA-976 ANSI/EIA-976 Approved: March 18, 2015 NOTICE EIA Engineering Specifications and Publications a
2、re 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 need. Exis
3、tence 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 voluntary use
4、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 liability to an
5、y 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 where a
6、 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 appropriate safet
7、y and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5291, 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-8088.) P
8、ublished 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 permission
9、 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 Backgroun
10、d . iv 1 Introduction . 1 1.1 Scope . 1 2 Applicable documents . 1 2.1 EIA specification 1 2.2 Industry documents . 1 2.3 SFF specifications . 1 3 Conventions 2 4 Description 2 4.1 General view . 2 4.2 Configurations . 4 5 Connector dimensions . 4 5.1 Shielded free (plug) cable connector 5 5.2 Shiel
11、ded free (plug) cable connector latch and pull tab 7 5.3 Shielded fixed (receptacle) right angle ground pad 8 5.4 Shielded fixed (receptacle) right angle shell . 10 5.5 Shielded fixed (receptacle) right angle panel cutout . 13 5.6 Shell blocking key (optional) 15 5.7 Plug blocking key (optional) . 1
12、7 5.8 Color coding and keying definition . 19 ii CONTENTS (continued) Figure Page 4.1 General view of shrouded versions . 3 4.2 Shielded fixed (receptacle) right angle shell configurations . 3 5.1 Shielded free (plug) cable connector 5 5.2 Shielded free (plug) cable connector latch and pull tab 7 5.
13、3 Shielded fixed (receptacle) right angle ground pad 8 5.4 Shielded fixed (receptacle) right angle shell . 10 5.5 Shielded fixed (receptacle) right angle panel cutout . 13 5.6 Shell blocking key (optional) 15 5.7.1 Plug blocking key (optional) . 17 5.7.2 Plug blocking key (optional) top view 17 5.7.
14、3 Plug blocking key (optional) side view 18 5.8 Shielded free (plug) cable connector pull tab . 19 Table 3.1 Conventions 2 4.2 Shielded fixed (receptacle) right angle shell configurations . 4 5.1 Shielded free (plug) cable connector dimensions 6 5.2 Shielded free (plug) cable connector latch and pul
15、l tab dimensions 7 5.3 Shielded fixed (receptacle) right angle ground pad dimensions . 9 5.4 Shielded fixed (receptacle) right angle shell . 12 5.5 Shielded fixed (receptacle) right angle panel cutout dimensions . 14 5.6 Shell blocking key/keyway (optional) dimensions . 16 5.7 Plug blocking key (opt
16、ional) dimensions . 18 iii Foreword (This foreword is informative only and is not part of this specification.) This Specification is from EIA Standards Proposal No. 5291, formulated under the cognizance of EIA CE-2.0, Committee on Connector and Socket Standards. This project was conducted in liaison
17、 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 performance and testing requirements for this as well as other possible applications. The deve
18、lopment 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 industry. iv Background Abstract: This specification defines the physical interface an
19、d general performance requirements for the Mini Multilane Shielded connector. One such use is as the Serial Attached SCSI Mini SAS 4X (wide compact external connector). This specification is made available for public review, and written comments are solicited from readers. Comments received by the m
20、embers 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 suppliers. If such a connector is supplied it must comply with this specification to ach
21、ieve 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 of this specification, no position is taken with respect to the validity of any such cla
22、im(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 applicants desiring to obtain such a license, then details may be obtained from the specifi
23、cation developer. EIA-976 Page 1 Specification for Mini Multilane 4X Shielded Shell and Plug Connectors (From EIA Standards Proposal No. 5291, formulated under the cognizance EIA CE-2.0 Committee on National Connector and Socket Standards, and previously published by the SFF Committee as SFF-8088.)
24、1. Introduction 1.1 Scope 1.1.1 This specification defines the plug, guide/strain relief shell, and latching requirements for the Mini Multilane Shielded Shell and Plug Connectors based upon the mating interface defined in EIA-974. 1.1.2 The SFF Committee activities support the requirements of the s
25、torage 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 this specification and the referenced documents, this specification shall take precedence. 2.1
26、 EIA specification EIA-974 Mini Multilane 10 Gb/s 4X Common Element Connectors 2.2 Industry document T10/1601D SAS 1-1 (Serial Attached SCSI - 1.1) EIA-976 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 u
27、sed as the decimal point. This is equivalent to the English/American convention of a comma and a period. Table 3.1 - Conventions English 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 f
28、or the receiving body. The footprint positioning holes contain the critical dimensions for locating the receptacle shell. The receptacle shell also functions as the guide and strain relief for the free (plug) connector interface. Figure 4.1 illustrates an example of one such configuration. 4.1.1 Thi
29、s specification defines the plug, guide/strain relief, and latching requirements for the Shielded Mini Multilane connector. This specification plus the mating interface and connector footprint defined in EIA-974 meets the requirements to enable functional multiple sourcing. 4.1.2 The connector provi
30、des positive retention along with ease of insertion and removal. The guide/strain relief is incorporated in the shell and works together with the cable plug and latching mechanism to ensure that stress induced by normal cable routing and management is not passed through to the solder joints, which a
31、ttach the receptacle body to the printed circuit board. 4.1.3 The latch is designed to prevent the plug from bottoming, and a hard stop has been defined to prevent bottoming out should the cable plug be out of spec. 4.1.4 This specification defines the contact range that the retention scheme has to
32、provide to assure acceptable connector performance. 4.1.5 The low profile and small size is well suited to high-speed transmission applications where space is limited. EIA-976 Page 3 Figure 4.1 - General view of shrouded versions 4.1.6 The fixed (receptacle) right angle shell comes in alternative ve
33、rsions, as seen in figure 4.2 Figure 4.2 - Shielded fixed (receptacle) right angle shell configurations EIA-976 Page 4 4.2 Configurations Table 4.1 lists the configurations described in this specification. Table 4.2 - Shielded fixed (receptacle) right angle shell configurations Shielded version Orie
34、ntation 1-by-1 Port 26-circuit Shielded Mini Multilane Connector Right Angle 1-by-2 Port 26-circuit Shielded Mini Multilane Connector Right Angle 1-by-4 Port 26-circuit Shielded Mini Multilane Connector Right Angle Note: There are no straight versions specified in this document. In addition, the 26-
35、circuit Shielded Mini Multilane Connector is referred to in SAS as the ”Mini SAS 4x” connector. 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 a
36、ddressed in this document are specified in the tables and figures in this clause. EIA-976 Page 5 5.1 Shielded free (plug) cable connector Figure 5.1 Shielded free (plug) cable connector EIA-976 Page 6 Table 5.1 Shielded free (plug) cable connector dimensions Designator Description Dimension, millime
37、ters Tolerance, millimeter E01 Plug Thickness 12.75 0.13 E02 Rail Guide Way Length 27.04 0.13 E03 Snout Bottom to Plug Top 10.55 0.13 E04 Snout Thickness 5.54 +0.15/-0.05 E05 Clearance Groove Length 6.79 0.13 E06 Snout Tip to Lower Tab Tip 0.75 0.13 E07 Snout Internal Width 13.72 0.10 E08 Lower Tab
38、Forward Edge Width 8.88 0.13 E09 Snout Tip to PCB Tip 0.42 0.13 E10 Snout Length 28.31 0.13 E11 Plug Width 18.70 0.10 E12 Unused E13 Unused E14 PCB CL to Rail Guide Way Top 1.83 0.13 E15 Rail Guide Way Width 1.25 0.05 E17 Snout Top Surface Thickness/ Key Way Depth 0.70 0.05 E18 Rail Guide Way Top to
39、 Snout Top 1.07 0.05 E19 Rail Guide Way Top to Lower Tab Top 3.86 +0.15/-0.05 E20 Snout Width 17.14 +0.20/-0.05 E21 Rail Guide Way Root to Root Zone A 15.64 0.05 E21 Rail Guide Way Root to Root Zone B 15.94 0.05 E22 Zone B Length for E21 5.20 0.13 E23 Zone A Length for E21 18.45 0.13 E24 Chamfer Dep
40、th 0.30 0.05 E25 Chamfer Length 1.00 0.10 E26 Chamfer Depth 0.20 0.05 EIA-976 Page 7 5.2 Shielded free (plug) cable connector latch and pull tab Figure 5.2 - Shielded free (plug) cable connector latch and pull tab Table 5.2 Shielded free (plug) cable connector latch and pull tab dimensions Designato
41、r Description Dimension, millimeters Tolerance, millimeter F01 Latch to PCB 26.28 0.20 F02 Width of Barbs 9.20 0.10 F05 Latch Clearance 1.14 0.10 F06 Latch Barb Length 1.50 0.10 F07 Latch Barb Lead-in Height 1.14 0.10 F08 Latch Barb Lead-in Angle 33.5 1.0 F09 Latch to End of Pull 46.50 Minimum F10 U
42、nused - - F11 Unused - - F12 Unused - - F13 Pull Width 18.80 Maximum F14 Pull Thickness 0.75 Minimum F15 Latch to Plug Body 1.60 0.13 EIA-976 Page 8 5.3 Shielded fixed (receptacle) right angle ground pad Figure 5.3 - Shielded fixed (receptacle) right angle ground pad EIA-976 Page 9 Table 5.3 Shielde
43、d fixed (receptacle) right angle ground pad dimensions Designator Description Shield version Tolerance, millimeter1-by-4 1-by-2 1-by-1 G01 Ground Pad Width 80.00 41.97 22.96 0.05 G02 Screw Hole Spacing 77.25 39.22 20.21 0.05 G03 Alignment Hole Spacing 75.53 38.24 19.22 0.05 G04 Ground Pad Datum to P
44、ort 4 Datum 72.65 N/A N/A 0.05 G05 Ground Pad Datum to Port 3 Datum 53.64 N/A N/A 0.05 G06 Port Spacing 19.01 = = ReferenceG07 Ground Pad Datum to Port 2 Datum 34.63 = N/A 0.05 G08 Ground Pad Datum to Port 1 Datum 15.62 = = 0.05 G09 Connector Hole Spacing 12.00 = = 0.05 G10 Port Datum to Ground Pad
45、2.87 = = 0.05 G11 Port Mask Width 17.74 = = 0.05 G12 Ground Pad to Edge of PCB 29.48 = = 0.05 G13 Port Mask to Edge of PCB 27.37 = = 0.05 G14 Notch to Datum B 16.80 = = 0.05 G15 Pad Width 3.20 = = 0.13 G16 Screw Hole Spacing 15.00 = = 0.05 G17 Screw Hole to Datum 6.00 = = 0.05 G18 Trace Alley Width
46、1.50 = = 0.05 G19 Port CL to Trace Alley 1 3.80 = = 0.05 G20 Port CL to Trace Alley 2 1.40 = = 0.05 G21 Port CL to Trace Alley 4 3.40 = = 0.05 G22 Port CL to Trace Alley 3 1.00 = = 0.05 G23 Card Edge to Datum B 18.67 = = 0.13 G24 Fillet 1.00 = = MaximumG25 Screw Hole Diameter 2.50 = = 0.05 G26 Locat
47、ing Hole Diameter 1.55 = = 0.05 G27 Notch to Ground Pad Offset 1.00 = = MinimumG28 Pad Edge to Datum B 15.80 = = 0.05 EIA-976 Page 10 5.4 Shielded fixed (receptacle) right angle shell Standard application 0 degrees PCI card application 1 degree Figure 5.4 Shielded fixed (receptacle) right angle shel
48、l EIA-976 Page 11 Figure 5.4 Shielded fixed (receptacle) right angle shell (continued) EIA-976 Page 12 Table 5.4 Shielded fixed (receptacle) right angle shell dimensions Designator Description Shield version Tolerance, millimeter1-by-4 1-by-2 1-by-1 H01 EMI Shield to Datum 24.96 = = ReferenceH02 PCI
49、 Rail to Datum 19.71 = = 0.05 H03 Guide Rail Angle 1.0 = = ReferenceH04 Shield Locator Pin Diameter 1.46 = = 0.05 H05 Flange Height 8.95 = = 0.05 H06 EMI Shield to Datum 25.09 = = ReferenceH07 Face Plate to Datum 19.71 = = 0.05 H08 EMI Gasket Gap Width 1.63 = = 0.50 H09 Gasket Mate Surface to Datum 18.09 = = 0.05 H10 Rear Height of EMI Shield 7.38 = = 0.05 H11 Flange Height 8.63 = = 0.05 H12 Guide Rail Set Back 1.00 = = 0.05 H13 Guide Rail to Opening Top 1.38 = =
