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    SAE USCAR-17-2016 PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS (Revision 5).pdf

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    SAE USCAR-17-2016 PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS (Revision 5).pdf

    1、_The research data, analysis, conclusion, opinions and other contents of this document are solely the product of the authors. Neither the SAE International (SAE) nor the United States Council for Automotive Research (USCAR) certifies the compliance of any products with the requirements of nor makes

    2、any representations as to the accuracy of the contents of this document nor to its applicability for purpose. It is the sole responsibility of the user of this document to determine whether or not it is applicable for their purposes.Copyright 2016 USCAR Printed in U.S.A.All rights reserved.QUESTIONS

    3、 REGARDING THIS DOCUMENT: (248) 273-2470 FAX (248) 273-2494TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX (724) 776-0790RATIONALENotice about interim revisions: Editorial updates or clarifications may be made as “interim revisions” if the EWCAP review team determines that a formal revision is not nee

    4、ded. Interim revisions are documented as “revision letters” and are available on the USCAR website at: http:/ewcap.uscarteams.org/revisions.htmlSUMMARY OF CONTENTS1.0 SCOPE 22.0 REFERENCES 23.0 GENERAL REQUIREMENTS. 23.1 SAMPLE SIZE 23.2 CONNECTOR QUALIFICATION 33.3 EQUIPMENT. 34.0 TEST AND ACCEPTAN

    5、CE REQUIREMENTS 34.1 GENERAL. 34.2 CONNECTOR MECHANICAL TESTS . 44.3 TERMINAL ELECTRICAL TESTS. 144.4 CONNECTOR ELECTRICAL TESTS 154.5 ENVIRONMENTAL TESTS 185.0 TEST SEQUENCE 225.1 TEST SEQUENCE GENERAL NOTES 225.2 CONNECTOR SYSTEM MECHANICAL TEST SEQUENCE 235.3 CONNECTOR SYSTEM ELECTRICAL / ENVIRON

    6、MENTAL TEST SEQUENCES 255.4 SEALED CONNECTOR SYSTEM TEST SEQUENCE 265.5 TEST REPORT . 26APPENDIX A DEFINITIONS . 27APPENDIX B WEDGE FOR MATING UNDER SIDE LOAD TEST 28APPENDIX C REVISIONS. 29SAE/USCAR-17 REVISION 5 Issued 2002-02Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYS

    7、TEMSSAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 2 -SCOPE1. This document contains procedures for testing performance of SMB-style electrical terminals, connectors and components for coaxial cable connection systems intended for road vehicle

    8、applications. These are often called FAKRA II designs. This specification does not apply to the Non RF portion of a Hybrid RF connection system. 2. The intent of this specification is to qualify sealed and unsealed RF connectors that operate at frequencies from DC to 6 GHz. The characteristic impeda

    9、nce of the SMB/FAKRA connection system is 50 ohms however this specification does not exclude the use of these RF connectors on non-50 ohm cables or systems.3. This specification does not apply to single conductor wire or twisted pair connection systems.4. This specification (along with SAE/USCAR 18

    10、) is designed to provide the mechanical and electrical data required to insure that assemblies from various manufacturers will perform reliably in actual conditions. There is intermateability testing included in this specification. End users who may be concerned about intermateability are responsibl

    11、e to request the supplier complete this testing.REFERENCESSAE/USCAR-2 Performance Specification for Automotive Electrical Connector SystemsSAE/USCAR-25 Electrical Connector Assembly Ergonomic Design CriteriaSAE/USCAR-18 USCAR-17 SupplementSociety of Automotive Engineering400 Commonwealth DrWarrendal

    12、e, PA 15096-0001USAhttp:/www.sae.orgIEC 62153-4-7 Metallic Communication Cable Test Methods part 4-7 Triaxial Tube in Tube Method EIA-364-30A Capacitance Test Procedure for Electrical Connectors and SocketsGENERAL REQUIREMENTS3.1 SAMPLE SIZE1. Terminals used for validation testing are applied to cab

    13、les using the manufacturers recommended tools and processes.2. The total number of test samples required for each test is listed in tables 5.2, 5.3 and 5.4.3. Number each sample pair of connectors and record crimp dimensions as applicable from a representative group from each set of samples (See tab

    14、les 5.2, 5.3 and 5.4). Document cable information such as type, supplier and supplier part number. All test data, including swept SWR and IL, must be maintained by the supplier for possible review. The supplier must also keep the test samples such that each new customer can visually inspect the samp

    15、les or confirm SWR and IL.SAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 3 -3.2 CONNECTOR QUALIFICATION1. The RF connection system will be qualified for a specific coaxial cable per these procedures. The guidelines in Table 3.2 apply for qualif

    16、ying the product for use on additional cables sizes and constructions. The connection system must meet the dimensional characteristics specified in USCAR-18Connector Construction (dimensions/materials) same as originally validated. Example: connector for RG 174 vs. RG 316 having same cable interface

    17、 dimensionsComplete Section 4.2.1 (mechanical Pull) and 4.3 (Terminal Electrical Tests) only and other testing as required by end customerConnector construction differs from originally validated design due to coax cable size/geometry. Example: connector for RG 174 vs. RG 58 and having different cabl

    18、e interface dimensions.Complete re-qualification is requiredTable 3.2: Connector Qualification for Additional Cable Construction2. Final determination as the level of testing needed for qualification on additional cables shall be determined by agreement between the supplier and the OEM. The qualifie

    19、d coaxial cable(s) and frequency range of interest must be listed on the connector drawing. 3. This specification is a supplement to the SAE/USCAR-2 Performance Specification for Automotive Electrical Connector Systems and all requirements herein must be met in addition to all requirements of the mo

    20、st recent revision of SAE/USCAR-2, unless otherwise specified. RF connector related additions and/or subtractions to the SAE/USCAR-2 specification are contained in this document. 3.3 EQUIPMENTIn addition to the equipment listed in the SAE/USCAR-2 Performance Specification, the equipment listed in Ta

    21、ble 3.3 is required.Item Description Requirements1 High Voltage Source800V AC2 8GHz Network AnalyzerS Parameter with Time Domain Capability. Min. Frequency as required for certifying the CUT performance within the required frequency rangeTable 3.3: RF Conn. Additional EquipmentTEST AND ACCEPTANCE RE

    22、QUIREMENTS4.1 GENERALRefer to the SAE/USCAR-2 Performance Specification for the majority of RF connector test and acceptance requirements. The exceptions to those tests are listed in the following sections:1. The Terminal Mechanical Tests of SAE/USCAR-2 are not required for the Center - Inner Termin

    23、al for RF connector qualification. 2. The Terminal Bend Resistance test is to be considered as optional dependent on the terminal design asdetermined by agreement between the supplier and the OEM.3. The Maximum Test Current Capability test is optional.SAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMAN

    24、CE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 4 -4.2 CONNECTOR MECHANICAL TESTS4.2.1 Mechanical Pull Test and Side Load Test4.2.1.1 PurposeThis test verifies that the connector latch, terminal retention system, and cable attachment will maintain continuity when subjected to mechanical stres

    25、s. This Mechanical Pull test is in addition to the mechanical connector tests in SAE/USCAR-2 Performance Specification. This is a stand-alone test and requires samples for each cable type qualified.Note:The Mechanical Pull Test is a design validation test and shall not be used as a production accept

    26、ance or quality control test.4.2.1.2 Procedure1. Prepare Connector Under Test (CUT) assemblies for each cable being qualified per Procedure 4.4.2.2, Steps 1 through 72. Attach a continuity tester to check continuity through both the center contact and shield of the mated connector pair.3. Subject In

    27、line, Board and Panel Mount connection systems to a direct pull force parallel with the axis of the cable. Any method can be used. If an SMA connector is present for testing, gripping on the SMA connectors can be effective. For samples prepared for SWR measurement (per 4.4.2.2, Note C), it is also a

    28、cceptable to wrap thecable around a 2-inch diameter mandrel, securing the cable to the mandrel with electrical tape or some other suitable means. Board mount connectors may have the circuit board end firmly attached to a suitable fixture. 4. Increase the pull force at a uniform rate not to exceed 50

    29、mm/min until the force equals 110N.5. Hold the force for 5 seconds while monitoring for continuity.6. Additional Board and Panel Mount testing only. Grab far-end SMA connector (or other available area) and apply 75N of force in the following directions using the same test sample: 1C, 3C, 5B, 7B, 8C

    30、(per Figure 4.2.1.2.). The sequence of force application is not mandatory. Direction vectors B and C revolve 360q around the connector axis.Figure 4.2.1.2: Board Mount Mechanical Pull186247A 35BCSAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 5

    31、-7. Additional test for Right Angle Cabled Connectors: Axial loads are less practical when applied to right angle cabled connectors therefore a side load shall be applied to the extreme end of the ferrule (furthest from the centerline). The load of 75N shall be applied for 5 seconds while monitoring

    32、 continuity. SWR measurements and visual inspection for damage shall be done before and after the side load test. (See drawing below)Note: Cable to connector retention to meet force values according to table 4.2.6.5-B Pull Criteria7.1 Measure SWR and IL per Procedure 4.4.2.2, Steps 4, 6, & 7. Sectio

    33、ns of this test apply to all RF connector types refer to 4.4.2 for application specifics.7.2 Disassemble each sample and visually check for damage that could affect the performance of the connection system.Note:Optionally, to account for SMA crimp degradation and the corresponding increased insertio

    34、n loss, a minimum of 10 SMAconnector assemblies (same crimp process and length as CUT assembly per Figure 4.4.2.2 1a.) may be subjected to this test (statistical evaluation).4.2.1.3 Acceptance Criteria1. There shall be no interruptions in continuity on any sample during the test.2. The RF connector

    35、SWR and Insertion Loss values must be equal to or less than those listed in Tables 4.4.2.3 after the test. 3. There shall be no visual damage to any part of the connection system including connector body, metal terminals or cable attachment. Failure of the SMA terminals is not to be interpreted as a

    36、 failure of the CUT. Samples identified as having SMA failures through failure analysis may be replaced and retested through the entire sequence.4. SMB Connection Systems Minimum Retention Forcea. 110N minimum in direction A for Inline, Board and Panel Mount Connectorsb. 75N minimum in directions B

    37、and C for Board and Panel Mount connectors c. 75N minimum Side load for Right Angle Connectors5. The Outer (braid/shield) Crimp must meet the requirement of 4.2.6.5 step 3SAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 6 -4.2.2 Connector Mating

    38、and Un-mating4.2.2.1 Mating/Un-mating Forces4.2.2.1.1 PurposeThis test determines the mating/un-mating forces associated with RF connectors.4.2.2.1.2 ProcedureFollow the procedure for Connector Mating/Un-mating Force found in the latest revision of SAE/USCAR-2. The acceptance criteria are specified

    39、in USCAR-25.4.2.2.1.3 Acceptance CriteriaMust meet the requirements of USCAR 25.4.2.2.2 Mating Under Side load:4.2.2.2.1 PurposeThis test is designed to simulate the mating of an 8.0mm centerline dual connector pair when the cables are constrained at an angle perpendicular to the mating direction of

    40、 the connectors.4.2.2.2.2 EquipmentWedge shown in Appendix B.4.2.2.2.3 ProcedureThere are two sections to this test. The first section is designed to validate the female connector and the second section validates the male connector. Perform the test on 5 sets of constrained female connectors and 5 s

    41、ets of constrained male connectors.SAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 7 -Female Connector Constrained1. Attach the wedge to the Two-Way Female contact with 8.0mm Center Inline FAKRA Connector in the manner shown in Figure 4.2.2.2.3.

    42、A2. Secure the housing of the Two-Way Female contact with 8.0mm Center Inline FAKRA using the intended clip provision (when available) and typical mounting clip. If there is nothing available fix the assembly on the female connector housing.3. Mate the pair, measure and record the Center & Outer Con

    43、tact Resistance.4. Attach a continuity monitoring device to each connection point (both Outer & Inner contacts). 5. Grasp the mating Male connector by the housing only leaving the coaxial leads unrestricted. Mate the Male connector to the stationary Female connector 10 times. Continuity must be dete

    44、cted during each mating cycle.6. Leave the pair mated, measure and record the Center & Outer Contact Resistance.7. Visually inspect both interfaces for damage.Figure 4.2.2.2.3.A Female Connector with WedgeMale Connector Constrained1. Attach the Wire Tie around the cables of the Two-Way Male contact

    45、with 8.0mm Center Inline FAKRA Connector approx. 12.7mm from the end of the ferrules in the manner shown in Figure 4.2.2.2.3.B.2. Secure the housing of the Two-Way Female contact with 8.0mm Center Inline FAKRA using the intended Clip Provision (when available) and typical mounting clip. If there is

    46、nothing available fix the assembly on the female connector housing. Leave the coaxial leads of the Female connector unrestricted.3. Mate the pair, measure and record the Center & Outer Contact Resistance.4. Attach a continuity monitoring device to each connection point (both Outer & Inner contacts).

    47、 5. Grasp the mating Male connector by the housing with the coaxial leads constrained with the Wire Tie. Mate the Male connector to the stationary Female connector 10 times. Continuity must be detected during each mating cycle.6. Leave the pair mated, measure and record the Center & Outer Contact Re

    48、sistance.7. Visually inspect both interfaces for damage.SAE/USCAR-17 REVISION 5 Revised 2016-12PERFORMANCE SPECIFICATION FOR AUTOMOTIVE RF CONNECTOR SYSTEMS - 8 -Figure 4.2.2.2.3.B Male Connector Constrained4.2.2.2.4 Acceptance CriteriaThe mated connectors must meet the electrical values specified i

    49、n Section 4.3.1.3.4.2.3 Polarization Feature Effectiveness4.2.3.1 PurposeThis test prevents mating of a connector housing with any unintended mate.4.2.3.2 ProcedureFollow the procedure of SAE/USCAR-2 “Polarization Feature Effectiveness” with the following exceptions:1. Test a minimum of 3 sets for each selected mis-orientation or mis-index.2. Terminals with electrical access to the center conductor are required to be loaded in each connector of ea


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