Small Form-Factor Pluggable (SFP) Application Specification 114-13121 Ganged Press-Fit PT Connector and Cage Assembly 26 JAN 06 Rev A All numerical values are in metric units [with U.S. customary units in brackets]. Dimensions are in millimeters. Unless otherwise specified, dimensions have a tolerance of +0.13 and angles have a tolerance of +2 . Figures and illustrations are for identification only and are not drawn to scale. _ NOTE 1. INTRODUCTION This specification covers the requirements for application of SFP Ganged Press–Fit PT Connector and Cage Assembly to interconnect fiber optic or copper transceiver modules to printed circuit (pc) boards. The connector with cage assembly is one unit available in a 1 4 and 1 6 configuration. The connector and the cage assembly are also available separately for rework purposes. The connector consists of a housing with a 20–position receptacle port and compliant pin contacts on 0.8 centerline spacing. The housing features alignment posts that provide stability for placement on the pc board. Each receptacle port has a card entry slot that accepts a 1.0+0.1 thick integrated circuit card housed in the mating module. The cage assembly is a frame with compliant pin contacts for mechanical retention to the pc board and to provide electromagnetic interference (EMI) suppression, thermal vent holes, and panel ground springs. The cage assembly features a locking latch and a kick–out spring for each mating module. The locking latch holds the module in place, and the kick–out spring releases the module for removal. A dust cover (for each port) is used when the module is not mated to the cage assembly to prevent contaminants from entering the chassis. The cage assembly is designed to be inserted into a bezel after being seated onto the pc board. When corresponding with Tyco Electronics Personnel, use the terminology provided in this specification to facilitate your inquiries for information. Basic terms and features of this product are provided in Figure 1. Connector With Cage Assembly Connector (4 Places) Cage Assembly Dust Cover 4 Configuration 1 6 Configuration 1 Cage Assembly Connector (6 Places) Figure 1 (cont’d) E 2006 Tyco Electronics Corporation, Harrisburg, PA All International Rights Reserved Tyco is a trademark. TOOLING ASSISTANCE CENTER 1-800-722-1111 This controlled document is subject to change. PRODUCT INFORMATION 1-800-522-6752 For latest revision and Regional Customer Service, *Trademark Other products, logos, and company names used are the property of their respective owners. visit our website at www.tycoelectronics.com 1 of 10 LOC B SFP Ganged Press-Fit PT Connector and Cage Assembly Connector 114-13121 Cage Assembly Housing Compliant Pin Thermal Contacts Vent Holes Alignment Post Kick-Out Spring (4 Places) Standoffs (2 Places) Module Locking Latch Compliant Pin Card Entry Contacts Standoff Slot Panel Ground (4 Places) Springs (24 Places) Port (4 Places) Frame Figure 1 (end) 2. REFERENCE MATERIAL 2.1. Revision Summary S Updated document to corporate requirements S Added new text to Section 1, INTRODUCTION, Paragraph 3.6.D, and Section 4, QUALIFICATION S Added new or changed artwork to Figures 1 and 3 S Deleted information in Paragraph 2.5 S Changed dimensions in Figures 4 and 6 S Added new tables to Figures 4 and 7 2.2. Customer Assistance Reference Product Base Part Number 1658706 and Product Code K221 are representative numbers of the SFP Ganged Press–Fit PT Connector and Cage Assembly. Use of these numbers will identify the product line and expedite your inquiries through a service network established to help you obtain product and tooling information. Such information can be obtained through a local Tyco Electronics Representative or, after purchase, by calling PRODUCT INFORMATION at the number at the bottom of page 1. 2.3. Drawings Customer Drawings for product part numbers are available from the service network. If there is a conflict between the information contained in the Customer Drawings and this specification or with any other technical documentation supplied, the information contained in the Customer Drawings takes priority. 2.4. Specifications Product Specification 108–2161 provides product performance and test information for the SFP Ganged Press–Fit PT Connector and Cage Assembly. 2.5. Instructional Material Instruction Sheets (408–series) provide product assembly instructions or tooling setup and operation procedures. Documents available which pertain to this product are: Document Number 408–8848 408–8849 408–8850 2 of 10 Document Title SFP PT Connector and Cage Assembly Seating Tool Kits SFP Cage Assembly Extraction Tools SFP PT Connector Extraction Tool 1725480–2 Rev A SFP Ganged Press-Fit PT Connector and Cage Assembly 114-13121 3. REQUIREMENTS 3.1. Safety Do not stack component packages so high that the shipping containers buckle or deform. 3.2. Limitations The connectors are designed to operate in a temperature range of –55_ to 105_C [–67_ to 221_F]. The bezel requirements given in this document are specifically configured for products used in the communications industry. It is strongly recommended that this bezel configuration NOT be used for peripheral component interconnect (PCI) applications. 3.3. Material The connector housing is made of molded liquid crystal polymer (LCP), UL 94–V–0. The chicklets (part that holds the compliant pin contacts) are made of molded thermoplastic, UL 94–V–0. The connector compliant pin contacts are made of copper alloy underplated with nickel; plated with tin at the leads and plated with gold at the interface area. The cage assembly is made of copper alloy plated with tin. The dust cover is made of thermoplastic. 3.4. Storage A. Ultraviolet Light Prolonged exposure to ultraviolet light may deteriorate the chemical composition used in the connector material. B. Shelf Life The connector and cage assembly should remain in the shipping container until ready for use to prevent deformation to the compliant pin contacts. The connector and cage assembly should be used on a first in, first out basis to avoid storage contamination that could adversely affect performance. 3.5. Chemical Exposure Do not store the connector and cage assembly near any chemical listed below as they may cause stress corrosion cracking in the compliant pin contacts. Alkalies Amines Ammonia Carbonates Citrates Nitrites Phosphates Citrates Sulfur Nitrites Sulfur Compounds Tartrates 3.6. PC Board A. Material and Thickness The pc board material shall be glass epoxy (FR–4 or G–10). The minimum pc board thickness shall be 1.5. B. Tolerance Maximum allowable bow of the pc board shall be 0.08 over the length of the connector and cage assembly. C. Hole Dimensions The holes for the connector and cage assembly compliant pin contacts must be drilled and plated through to dimensions specified in Figure 2. Finished hole diameters for alignment posts are given in Figure 3. D. Layout The holes for the connector and cage assembly must be precisely located to ensure proper placement and optimum performance of the connector and cage assembly. A sample layout is provided in Figure 3. Rev A 3 of 10 SFP Ganged Press-Fit PT Connector and Cage Assembly 114-13121 Recommended Hole Dimensions For Connector Compliant Pin Contacts ÉÉÉÉÉ ÉÇ ÉÉÉÉÉ ÉÇ ÉÉÉÉÉ ÉÇ ÉÉÉÉÉ ÉÇ ÉÉÉÉÉ ÉÇ ÉÉÉÉÉ ÉÇ ÉÉÉÉÉ É ÉÉÉÉÉ 0.675-0.725 Drilled Hole Diameter 1.00 Ref Pad Diameter ÉÉ ÉÉÉÉÉ Ç ÉÉÉÉÉ ÉÉ Ç ÉÉÉÉÉ ÉÉ Ç ÉÉÉÉÉ ÉÉ Ç ÉÉÉÉÉ ÉÉ Ç ÉÉÉÉÉ ÉÉ Ç ÉÉÉÉÉ ÉÉ Ç ÉÉÉÉÉ 0.025-0.050 0.55-0.65 Copper Plating (Max Hardness 150 Knoop) Finished Hole Diameter After Plating 0.010-0.025 Tin-Lead Plating Recommended Hole Dimensions For Cage Assembly Compliant Pin Contacts ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉ ÇÇ ÉÉÉÉÉÉ ÉÉ ÇÇ ÉÉÉÉÉÉ ÉÉ ÇÇ ÉÉÉÉÉÉ ÉÉ ÇÇ ÉÉÉÉÉÉ ÉÉ ÇÇ ÉÉÉÉÉÉ ÉÉ ÇÇ ÉÉÉÉÉÉ ÉÉ ÇÇ 1.125-1.175 Drilled Hole Diameter ÉÉ ÉÉÉÉÉÉ ÇÇ ÉÉ ÉÉÉÉÉÉ ÇÇ ÉÉ ÉÉÉÉÉÉ ÇÇ ÉÉ ÉÉÉÉÉÉ ÇÇ ÉÉ ÉÉÉÉÉÉ ÇÇ ÉÉ ÉÉÉÉÉÉ ÇÇ ÉÉ ÉÉÉÉÉÉ ÉÉ ÉÉÉÉÉÉ 0.025-0.050 1.00-1.10 Copper Plating (Max Hardness 150 Knoop) Finished Hole Diameter After Plating 0.010-0.025 Tin-Lead Plating Figure 2 4 of 10 Rev A SFP Ganged Press-Fit PT Connector and Cage Assembly 114-13121 Recommended PC Board Layout For Connector and Cage Assembly (1 X 4 Configuration) Connector See Detail 53 X Detail Typ Datum and Basic Dimension Determined by Customer Figure 3 Rev A 5 of 10 SFP Ganged Press-Fit PT Connector and Cage Assembly 114-13121 3.7. Transceiver Modules CAUTION The mating transceiver module packing size cannot exceed the width of each cage port opening. This includes the part of the transceiver that is extending outside the cage. Since the port-to-port spacing has a 14.25 mm centerline, the widest transceiver width extending outside of the cage should be less than 14 mm. This will prevent any possible interference when transceivers are inserted in adjacent ports. 3.8. Bezel CAUTION It is strongly recommended that this bezel configuration NOT be used in PCI applications. The following requirements were intended to be used in the communications industry only. A. Thickness The bezel thickness range shall be 0.8 through 2.6. B. Cutout The bezel must provide a cutout that allows proper mounting of the connector and cage assembly. The cage assembly panel ground springs must be compressed by the bezel in order to provide an electrical ground between the connector and cage assembly and bezel for EMI suppression. Care must be used to avoid interference between adjacent connector and cage assemblies and other components. The minimum allowable distance between connector and cage assemblies must be considered to ensure proper assembly. Dimensions for bezel cutout and minimum allowable distance between cutouts are shown in Figure 4. 3.9. PC Board and Bezel Position The bezel and pc board must be positioned in relation to each other to avoid interference with the function of the cage assembly module locking latch and to ensure proper function of the panel ground springs. This relationship must conform to the dimensions stated in Figure 4. Recommended Bezel Cutout (Minimum Pitch) and PC Board and Bezel Position Bezel Thickness: 0.8-2.6 0.30 Maximum Radius A (4 Places Each Cutout) ÉÉ ÉÉ ÇÇÇÇÇ ÉÉÇÇÇÇÇ Section Y-Y Y Cutout in Bezel 10.15 10 (Ref) PC Board 0.15+0.1 Y PC Board B (Min) Cutout Centerline to Cutout Centerline (Bottom of Cutout 2.9+0.9 (Distance in Bezel to Top of Between Back of PC Board) Bezel and Front of PC Board) Note: Not to Scale CONNECTOR AND CAGE ASSEMBLY TYPE DIMENSION (+0.1) CONFIGURATION A 1 X 4 58 1 X 6 86.5 B (Min) 16.5 Ganged 87.75 Figure 4 3.10. Placement The following requirements also apply to connectors and cage assemblies used for rework purposes. 6 of 10 Rev A SFP Ganged Press-Fit PT Connector and Cage Assembly CAUTION 114-13121 Connectors should be handled only by the housing and cage assemblies only by the frame to avoid deformation, contamination, or damage to the compliant pin contacts. A. Registration The compliant pin contacts and alignment posts must be aligned with matching holes in the pc board, then inserted into the pc board simultaneously to prevent twisting or bending of the compliant pin contacts. B. Seating Using proper seating force and seating height is essential to interconnection performance. The force used to seat the connector and cage assembly must be applied evenly to prevent deformation or other damage to the compliant pin contacts. The force required to seat the connector and cage assembly onto the pc board can be calculated by: Amount of Compliant Pin Contacts 44.5 N [10 lbs] (Force per Compliant Pin Contact) = Seating Force CAUTION Over-driving of the connector and cage assembly will deform parts critical to the quality of the connection. Maximum force should occur prior to the connector and cage assembly bottoming on the pc board. The shut height of the application tool must be specifically set for proper seating of the connector and cage assembly. The shut height can be calculated by: Seating Height (Connector and Cage Assembly Seated) + Height of Seating Tool + Combined Thicknesses of PC Board and PC Board Support Fixture = Shut Height (Ram Down) The seating height, measured from the top of the cage assembly (not including the panel ground springs) to the top of the pc board, is given in Figure 5. The connector and cage assembly must be seated on the pc board not exceeding the dimensions shown in Figure 5. NOTE The shut height might have to be adjusted to obtain the 0.10 maximum gap between the standoffs of the cage assembly and the pc board. 9.7 Seating Height (Top of Cage Assembly, Not Including Panel Connector Alignment Posts Cage Assembly Compliant Pin Ground Springs, to PC Board) PC Board 0.10 (Max) Gap Cage Assembly Standoffs Contacts to PC Board Figure 5 3.11. Checking Assembly After assembly, the cage assembly panel ground springs must be compressed by the bezel. A slight bow in the cage assembly is permitted. The bezel must not interfere with the function of the module locking latch. The bezel and pc board must be positioned according to the dimensions shown in Figure 6. Rev A 7 of 10 SFP Ganged Press-Fit PT Connector and Cage Assembly Bezel 114-13121 Front View Cutout 10 (Ref) Cage PC Board Assembly Side View Bezel Cage Assembly Panel Ground Springs Compressed By Bezel Cage Assembly Module Locking Latch Slightly Raised 0.15+0.10 (Bottom PC Board of Cutout in Bezel to 2.9+0.9 Top of PC Board) (Distance Between Back of Bezel and Front of PC Board) Figure 6 3.12. Dust Cover A dust cover must be installed into its respective port when the module is not mated with the cage assembly. 3.13. Repair and Rework The connector and cage assembly is not repairable. Damaged or defective connectors or cage assemblies MUST NOT be used. If repair or rework to the pc board requires soldering after the connector and cage assembly has been seated onto the pc board, the following must apply: — After soldering, removal of fluxes, residues, and activators is necessary. Consult with the supplier of the solder and flux for recommended cleaning solvents. Cleaners must be free of dissolved flux and other contaminants. Even when using a “no clean” solder paste, it is imperative that the contact interface be kept clean of flux and residue (since it acts as an insulator). DANGER Consideration must be given to toxicity and other safety requirements recommended by the solvent manufacturer. Refer to the manufacturer's Material Safety Data Sheet (MSDS) for characteristics and handling of cleaners. Trichloroethylene and Methylene Chloride is not recommended because of harmful occupational and environmental effects. Both are carcinogenic (cancer-causing). — Air drying is recommended. Otherwise, make sure that temperature limitations are not exceeded: –55_ to 105_C [–67_ to 221_F]. Excessive temperatures may cause housing degradation. 4. QUALIFICATION SFP Ganged Press–Fit PT Connectors are Recognized by Underwriters Laboratories, Inc. (UL) under File No. E28476. 5. TOOLING Tooling part numbers and instructional material packaged with the tooling are given in Figure 7. 8 of 10 Rev A SFP Ganged Press-Fit PT Connector and Cage Assembly 114-13121 5.1. Seating Tool Kit The seating tool kit (consists of a seating tool and wall support) is used to seat the connector with cage assembly onto the pc board. The seating tool and wall support are also available separately. For rework purposes, the seating tool can be used to seat the cage assembly onto the pc board. No tooling is required to seat the connector for rework purposes. 5.2. Extraction Tools The cage assembly extraction tool is used to remove the connector with cage assembly from the pc board by pushing the compliant pin contacts and alignment posts out of their holes without overstressing the compliant pin contacts. For rework purposes, this extraction tool can be used to remove the cage assembly from the pc board; and the connector extraction tool is used to remove the connector from the pc board. 5.3. Application Tool Power for the seating tool and extraction tool must be provided by application tool (with a ram) capable of supplying a downward force of 44.5 N [10 lb] per compliant pin contact. For available application tools, call PRODUCT INFO at the number at the bottom of page 1. 5.4. PC Board Support Fixture A pc board support must be used with the seating tool and the extraction tool. The support fixture provides proper support for the pc board and protects the pc board and the connector and cage assembly from damage. The support fixture must be customer designed according to the instructions included with the tool being used. SFP PT Connector and Cage Assembly Seating SFP PT Connector Tool Kit (Refer to Table) Extraction Tool 1725480-2 CONNECTOR AND CAGE ASSEMBLY TYPE CONFIGURATION SFP Cage Assembly PC Board Support Fixture Extraction Tool (Application Specific, (Refer to Table) Customer Supplied) SEATING TOOL KIT (DOCUMENT) CAGE ASSEMBLY SFP PT CONNECTOR EXTRACTION TOOL EXTRACTION TOOL (DOCUMENT) (DOCUMENT) 1 X 4 1725761-1 (408-8848) 1725194-1 (408-8849) 1 X 6 1725761-2 (408-8848) 1804086-1 (408-8849) Ganged 1725480 2 (408 1725480-2 (408-8850) 8850) Figure 7 Rev A 9 of 10 SFP Ganged Press-Fit PT Connector and Cage Assembly 114-13121 6. VISUAL AID Figure 8 shows a typical application of SFP Ganged Press–Fit PT Connector and Cage Assembly. This illustration should be used by production personnel to ensure a correctly applied product. Applications which DO NOT appear correct should be inspected using the information in the preceding pages of this specification and in the instructional material shipped with the product or tooling. CONNECTOR AND CAGE ASSEMBLY MUST NOT BE SLIGHT BOW IN CAGE DAMAGED IN ANY WAY ASSEMBLY PERMITTED ALL COMPLIANT PIN CONTACTS AND ALIGNMENT POSTS MUST BE FULLY INSERTED INTO MATCHING PC BOARD HOLES BEZEL MUST NOT INTERFERE WITH FUNCTION OF CAGE ASSEMBLY CAGE ASSEMBLY PANEL MODULE LOCKING LATCHES GROUND SPRINGS MUST BE COMPRESSED BY BEZEL DUST COVER (NOT SHOWN) MUST BE INSTALLED IN ITS RESPECTIVE PORT WHEN MODULE IS NOT MATED WITH CAGE ASSEMBLY FIGURE 8. VISUAL AID 10 of 10 Rev A