SAE USCAR-49-2024 微型汽车同轴连接器的性能规范

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Performance Specification for

Miniature Automotive Coaxial Connectors

SAE/USCAR-49 REVISION 1

October 2024

ISBN: 978-1-4686-0882-3

__________________________________________________________________________________________________________________________________________

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 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.

QUESTIONS REGARDING THIS DOCUMENT: (248) 273-2470 FAX (248) 273-2494`

TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX (724) 776-0790

SAE/USCAR-49 REVISION 1

Issued 2022-05

Revised 2024-10

PERFORMANCE SPECIFICATION FOR

MINIATURE AUTOMOTIVE COAXIAL CONNECTORS

TABLE OF CONTENTS

1. SCOPE .......................................................................................................................................................... 3

2. RELATED DOCUMENTS ............................................................................................................................. 3

2.1 Normative (Required) References ................................................................................................................ 3

2.2 Informative (Not-Required) References ........................................................................................................ 3

3. CONNECTOR QUALIFICATION .................................................................................................................. 3

3.1 General Test Requirements .......................................................................................................................... 3

3.1.1 USCAR-2 and USCAR-21 Testing ................................................................................................................ 3

3.1.2 USCAR-49 Testing ........................................................................................................................................ 5

3.1.3 RF Testing After Environmental Exposure.................................................................................................... 6

3.2 Equipment List .............................................................................................................................................. 6

4. TEST PROCEDURES ................................................................................................................................... 7

4.1 Required Tests .............................................................................................................................................. 7

4.2 Return Loss and Insertion Loss .................................................................................................................... 7

4.2.1 Purpose ......................................................................................................................................................... 7

4.2.2 Sample Preparation ...................................................................................................................................... 7

4.2.3 Procedure ...................................................................................................................................................... 8

4.2.4 Requirements .............................................................................................................................................. 11

4.3 Impedance .................................................................................................................................................. 12

4.3.1 Purpose ....................................................................................................................................................... 12

4.3.2 Procedure .................................................................................................................................................... 12

4.3.3 Acceptance Criteria ..................................................................................................................................... 13

4.4 Near-End Crosstalk ..................................................................................................................................... 14

4.4.1 Purpose ....................................................................................................................................................... 14

4.4.2 Procedure .................................................................................................................................................... 14

4.4.3 Acceptance Criteria ..................................................................................................................................... 15

4.5 Shielding Performance - Line Injection Method .......................................................................................... 16

4.5.1 Purpose ....................................................................................................................................................... 16

4.5.2 Procedure .................................................................................................................................................... 16

4.5.3 Requirements .............................................................................................................................................. 18

4.6 Shielding Performance - Tube-in-Tube Method .......................................................................................... 20

4.6.1 Purpose ....................................................................................................................................................... 20

4.6.2 Procedure .................................................................................................................................................... 20

4.6.3 Requirement ................................................................................................................................................ 22

4.7 Dielectric Withstanding Voltage .................................................................................................................. 22

4.7.1 Purpose ....................................................................................................................................................... 22

4.7.2 Procedure .................................................................................................................................................... 22

4.7.3 Acceptance Criteria ..................................................................................................................................... 22

4.8 Mechanical Side Load ................................................................................................................................. 23

4.8.1 Purpose ....................................................................................................................................................... 23

4.8.2 Procedure .................................................................................................................................................... 23

4.8.3 Acceptance Criteria ..................................................................................................................................... 24

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标签： #汽车 #USCAR

摘要：

SAE USCAR-49-2024 微型汽车同轴连接器的性能规范是汽车行业针对微型同轴连接器在车辆应用中的关键性能标准。该规范由国际自动机工程师学会（SAE）与美国汽车研究委员会（USCAR）联合发布，旨在为车载射频信号传输、天线系统、摄像头模块及信息娱乐系统等高频连接需求提供统一的测试方法与性能要求。内容涵盖连接器的机械耐久性、电气连续性、阻抗匹配、屏蔽效能、环境耐受性（如温度、振动、盐雾）以及插拔力等关键指标，适用于设计、验证与生产阶段的合规评估。遵循该标准有助于确保连接器在严苛汽车环境下的

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