Application Specification Universal Serial Bus (USB) 114-40059 AMF Type A and Type B Plug Connectors 02 JUN99 Revo NOTE All numerical vaiues are in metric units [with U.S. customary units in brackets]. Dimensions are in millimeters [and inches]. Uniess otherwise specified, dimensions have a tolerance of +0.13 [.005] and angles have a tolerance of +2. Figures and tllustrations are for identification only and are not drawn to scale. 1. INTRODUCTION This specification covers the requirements for application of AMP* Universal Serial Bus Type A and Type B Plug Connectors. The Type A plug connector components consist of one set of four adjacent (side by side} insert molded contacts and one stamped and formed backshell. The Type B plug connector components consist of two sets of two opposing insert molded contacts and one stamped and formed backshell. The USB plug connector components are designed to be terminated to the four conductors of the cable by soldering and the shell assembled and terminated to the braided cable shield by crimping. The cable plug subassembly is then overmolded by injection molding whereby the individual conductors and their respective solder terminations are encapsulated internal to the backshell. At the same time, an overmolded plug body and optional cable strain relief is formed around the outside of the backshell and cable jacket. All USB Type A plug connectors mate with USB Type A receptacle assemblies. All USB Type B plug connectors mate with USB Type B receptacle assemblies. When corresponding with AMP personnel, use the terminclogy provided on this specification to help facilitate your inquiry for information. Basic terms and features of components are provided in Figure 1. Type A Plug Type B Plug Connector Connector Solder Terminations Solder Terminations Contact insert Molded rae Interface Contacts insert Molded Insert Motded Contact Contact {Male) (Female) Backshell Figure 7 1999 AMP Incorporated, Harrisburg, PA. This controlled document is subject to change. TOOLING ASSISTANCE CENTER 1-800-722-1111 1of9 All International Rights Reserved. For latest revision call the AMP FAX* number. AMP FAX/PRODUCT INFO 1-800-522-6752 *Trademark LOCBAMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 2. REFERENCE MATERIAL 2.1. Revision Summary Per EC 0990-0170-99: * Initial release of application specification 2.2. Customer Assistance Reference Part Numbers 796002 and 796007 and Product Code 3941 are representative numbers of AMP Universal Serial Bus Type A and Type B Plug Connectors. Use of these numbers will identify the product line and expedite your inquiries through an AMP service network established to help you obtain product and tooling information. Such information can be obtained through a local AMP Representative (Field Sales Engineer, Field Applications Engineer, etc} or, after purchase, by calling the Tooling Assistance Center or the AMP FAX/Product Information Center number at the bottom of page 1. 2.3. Drawings AMP Customer Drawings for specific products are available from the service network. The information contained in Customer Drawings takes priority if there is a conflict with this specification or with any technical documentation supplied by AMP Incorporated. 2.4. Bulletins AMP Corporate Bulletin 401-52 is available upon request and can be used as a quide in soldering. This bulletin provides information on various flux types and characteristics along with the commercial designation and flux removal procedures. A checklist is attached to the bulletin as a guide for information on soldering problems. 2.5. Specifications AMP Product Specification 108-1586 provides product performance requirements and test information. AMP Application Specification 114-40054 provides information on 4 and 8-position USB connectors. AMP Manufacturing Process Specification 106-4 provides information on hand soldering of electrical connections. IPC Specification ANSI/IPC-A-610, Section 10.2.6 provides information on solder joint acceptability for round or flattened leads on electronic assemblies. 2.6. Instructional Material The following list includes available AMP instruction sheets (408series) that provide assembly procedures for product, operation, maintenance and repair of tooling, as well as setup and operation procedures of applicators. Document Number Document Title 408-4518 Backshell Crimper Assembly 1214695-1 408-6923 AMP Manual Arbor Frame Assembly 580241 408-7777 AMP Manual Arbor Frame Assembly 91085-2 3. REQUIREMENTS 3.1. Storage The connectors should remain in the shipping containers until ready for use to prevent damage to the connectors. The products should be used on a first in, first out basis to avoid storage contamination that could adversely affect signal transmissions. 3.2. Exposure Limitations A. Ultraviolet Light Prolonged exposure to ultraviolet light may deteriorate the chemical composition used in connectors. B. Chemical Exposure Do not store housings or connectors near any chemicals listed below, as they may cause stress corrosion cracking in the components. Alkalies Ammonia Citrates Phosphates Citrates Sulfur Compounds Amines Carbonates Nitrites Sulfur Nitrites Tartrates Te Where the above environmental conditions exist, phosphorbronze contacts are recommended instead of brass if available. 20f9 Rev OAMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 3.3. Cable/Wire Preparation A. Cable Preparation 1. Strip off cable jacket to expose 12 mm [.47 in.] of the braided shield. 2. Roll the braid back over the jacket. 3. Wrap braid with copper tape. 4. Strip individual wires to the dimensions referenced in Figure 2 and pretin with solder. 18.5 mm = Fen < 12.0 + 1.52 mm [.47 + .06 In.] 435+ .35mm [.17+.01 In] Figure 2 NOTE: Not to scale. B. Wire Preparation USB Plug Contacts accept a wire size range of 20 28, 22 28, 24 28, 26 28, or 28 - 28 AWG and may be terminated to either stranded or solid wire. NOTE When stripping the wire, care must be taken to avoid scraping, nicking, or cutting the conductor. Care must also be used when handling the wire during stripping and erimping to prevent cracking or breaking of the conductor and insulation. 3.4. Wire Termination 1. For Type B connectors only, singulate wire pairs for each set of contacts. Black and green wires to the male set; red and white wires to the female set. 2. For both Type A and Type B connectors, arrange wires according to required color sequence shown in Figure 3. 3. Position wires on appropriate solder pads. 4. Solder the wires. Refer to Paragraph 3.5, Soldering. Hold the wire and contact in position as heat and solder is applied to each wire and solder pad to make a connection. 5. For Type B connectors only, Steps 2, 3, and 4 may be performed separately for each set of contacts. Rev O 30f9AMP Universal Serial Bus Type A and Type B Plug Connectors 114-40059 Insert Molded Contact (Male) Type A Plug Connector Type B Plug Connector Insert Molded Contact (Female) 3.5. Soldering A. Flux Selection Figure 3 The contact solder pads must be fluxed prior to soldering with a mildly active, rosin base flux. Additionally, the flux must be compatible with the wave solder line, manufacturing, health, and safety requirements. Call the Product Information phone number at the bottom of page 1 for consideration of other types of flux. Some fluxes that are compatible with these connectors are provided in Figure 4. COMMERCIAL DESIGNATION FLUX TYPE ACTIVITY RESIDUE KESTER#3 ALPHA (igh Activate d) Mild Noncorrosive 186 611 #8 Product of Kester Solder Co. B. Cleaning @ Product of Alphametals Inc. Figure 4 After soldering, removal of fluxes, residues, and activators is necessary. Consult with the supplier of the solder and flux for recommended cleaning solvents. The following is a listing of common cleaning solvents that will not affect the connectors for the time and temperature specified. See Figure 5. Ry 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 Chionde can be used with no harmful affect to the connectors; however AMP does not recommend them because of the harmtul occupational and environmental effects. Both are carcinogenic (cancer-causing) and Trichloroethylene is harmful to the earths ozone layer. NOTE if you have a particular solvent that is not listed, contact the Tooling Assistance Center or Product Information number at the bottom of page 1. Aof9 Rev OAMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 CLEANER TIME TEMPERATURES (Minutes) (Maximum) NAME TYPE CELSIUS FAHRENHEIT Alpha 2110m Aqueous 1 132 270 Bioact EC-7@ Solvent 5 100 212 Butyl Carbitole Solvent 1 Room Ambience Isopropyl Alcohol Solvent 5 100 212 Kester 57788 Aqueous 5 100 212 Kester 577938 Aqueous 5 100 212 Loncoterge 520 Aqueous 5 100 212 Loncoterge 530 Aqueous 5 100 212 Terpene Solvent Solvent 5 100 212 @ Product of Frys Metals, Inc. @ Product of Petroferm, Inc. C. Drying @ Product of Union Carbide Corp. Figure 5 $3 Product of Litton Systems, Inc. When arying cleaned assemblies and printed circuit boards, make certain that temperature limitations are not exceeded: 55 to 105C [-67 to 221F] for standard temperature products and 55 to 215C [-67 to 419F] for high temperature products. Excessive temperatures may cause housing degradation. D. Soldering Guidelines AMP USB PC Board Connectors can be soldered using wave, vapor phase (VPR)}, double sided nonfocused infrared reflow processes (IR) or equivalent soldering techniques. Housing material Polybutylene Terephate (PBT} is for wave soldering and liquid crystal polyester is for vapor phase/infrared reflow soldering. The temperatures and exposure time shall be within the ranges specified in Figure 6. We recommend using SN6O or SN62 solder for these connectors. NOTE AMP Corporate Bulletin 401-52 provides some guidelines for establishing soldering practices. Refer to Paragraph 2.4, Bulletins. NOTE For hand soldering guidelines, refer to AMP Manufacturing Process Specification 106-4, Hand Soldering of Electrical Connections. NOTE For solder joint acceptability, refer to IPC Specification ANSI/IPC-A-6 10, Acceptability of Electronic Assemblies, Section 10.2.6, Round or Flattened (Coined) Leads. SOLDERING TEMPERATURE TIME PROCESS CELSIUS FAHRENHEIT (At Max Temperature) WAVE SOLDERING 26088 50033 5 Seconds VAPOR PHASE SOLDERING 215 419 5 Minutes INFRARED REFLOW SOLDERING 230 446 5 Minutes $3 Wave Temperature Figure 6 3.6. Shield Termination Slide the housing into the rear of the backshell until it is fully bottomed and housing is flush with the mating face of the backshell. For USB Type A plug connectors, the bottom of the housing should be oriented toward the shell seam in order for the housing to latch into the shell properly. For USB Type B plug connectors, mate the male and female halves and slide housing into the rear of the backshell, making sure the D profile of the front of the housing matches the D profile of the front of the shell. See Figure 7. Squeeze the crimp area of the backshell closed and crimp over the braid, copper tape, and cable using the tooling listed in Section 5, TOOLING. Rev O 5o0f9AMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 Type A Plug Connector Type B Plug Connector Slide Housing into the Rear of the Backshelf Slide Housing into the oh Ne of the Backshell Backshell Seam Mate Male and Housing Fully Bottomed Female Halves and Flush With Mating Face of Backshell Housing Fully Bottomed and Flush With Mating Face of Backshell Figure 7 3.7. Checking Cable Crimp Height Based on the cable size terminated, use the following table to check cable crimp height. The crimp height is measured at the point shown in Figure 8. Micrometer. Dimension AY bh Cable Jacket me - Crimped Shell . t Measure Crimp Height Here NOTE: Type A Plug is shown : ) for reference purposes. Type B Crimped Wire Plug should also be oriented Barrel | 673 [ 265 the same way. 6.48 L255 USB SHELL CABLE CRIMP HEIGHT WIRE SIZE, AWG DIMENSION A CABLE DIAMETER CRIMP SETTING 20-28 4.19 - 4.45 [165 -.175] 5.33 [,210] A 22 28 4.19 - 4.45 [.165 - .175] 5.08 [.200] A 24 - 28 3.94 - 4.19 [.155 - 165] 4.95 [.195] B 26-28 3.94 - 4.19 [155 - 165] 4.70 [.185] B 28 - 28 3.68 3.94 [.145 - 155] 3.40 - 4.57 [.194 - 180] CG Figure 8 6 ofg Rev OAMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 3.8. Repair/Removal Once a wire has been soldered to the insert molded contact, it cannot be removed and a new insert molded contact must be used. When a housing has been inserted into the backshell, it cannot be removed and a new housing must be used. If the housing is damaged, it must be replaced. 3.9. Overmolding/Strain Relief The overmolding operation occurs after the termination of the shield. Strain relief is optional. A. Type A Plug General external dimensions of the USB Type A plug overmolding should be no greater than 8 mm [-31 in.] high by 16 mm [63 in.] wide to expose a minimum of 11.75 mm [.46 in.] of the front of the plug. Length of overmold is determined by the customer. For allowable length of cable assemblies, see Figure 9. B. Type B Plug General external dimensions of the USB Type B plug overmolding should be no greater than 10.5 mm [-41 in.] high by 11.5 mm [45 in.] wide to expose a minimum of 11.75 mm [46 in.] of the front of the plug. Length of overmold is determined by the customer. For allowable length of cable assemblies, see Figure 9. AL Dimension A ~ ____,, cf WIRE SIZE, MAXIMUM CABLE LENGTH WIRE SIZE, MAXIMUM CABLE LENGTH AWG DIMENSION A AWG DIMENSION A 20 - 28 5.00 m [16.4 ft] 26 - 28 1.31 m [4.3 ft] 22 - 28 3.33 m [10.9 ft] 28 - 28 0.81 m[2.7 ft] 24-28 2.08 m[6.8 ft] Figure 9 3.10. Cross-Section View Figure 10 shows a cross-section view of a completely terminated and overmolded Type A and Type B Plug Connector. Type A Plug Copper Tape Braided Connector Contact Interfaces Solder Pads Shield Cable \ \ Rnb} \ f \ CALELECEEEELEN KG FASS SSSA SSA SRN NS Insert Molded \ \ Contact Overmolding Grimp Backshell Figure 10 (cont'd) Rev O 7ofgAMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 Type B Plug Connector Insert Molded Contact Contacts Interfaces Solder Pads Copper Tape Braided Shield Cable Backshell Interlock Crimp Overmolding Figure 10 (end) 4, QUALIFICATIONS Universal Serial Bus Connectors have been component recognized by Underwriters Laboratories, Inc. (UL) under File No. E81956 and also certified to Canadian Standards by UL under the same file number. 5. TOOLING Figure 11 provides tool part numbers and instructional material related to USB Type A and Type B Connectors. NOTE AMP Tool Engineers have designed machines for a vartety of application requirements. For assistance in setting up prototype and production line equipment, contact AMP Tool Engineering through your local AMP Represeniative or call the Tooling Assistance Center number at the bottom of page 7. Manual Arbor Frame Assembly and Backshell Crimper Assembly The backshell crimper assembly is used in conjunction with the manual arbor frame assembly to crimp USB Type A and B backshells onto cable with USB connectors. Manual Arbor Manual Arbor Frame Assembly Frame Assembly Backshell Crimper 58024-1 91085-2 (408-7777) Assembly 1214695-1 (408-6923) (Note: Slide Must Be Removed (408-4518) Before Using Assembly) Figure 11 8 ofg Rev OAMF Universal Serial Bus Type A and Type B Plug Connectors 114-40059 6. VISUAL AID Figure 12 shows typical applications of Universal Serial Bus Type A and Type B Plug Connectors. 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. HOUSING MUST NOT Type A Plug BE CRACKED OR DAMAGED HOUSING FULLY BOTTOMED WIRES MUST BE AND FLUSH WITH MATING SOLDERED PROPERLY FACE OF THE BACKSHELL Type B Plug MALE AND FEMALE INSERT MOLDED MAKE SURE THE D PROFILE CONTACTS MUST OF THE FRONT OF THE HOUSING MATCHES THE D PROFILE OF THE FRONT OF THE SHELL HOUSING FULLY BOTTOMED AND FLUSH WITH MATING FACE OF THE BACKSHELL Overmolding Type A Type B Plug ox oS] Plug L OVERMOLD LENGTH IS DETERMINED BY THE CUSTOMER. STRAIN RELIEF IS OPTIONAL. FIGURE 12. VISUAL AID Rev 0 90f9