【经验】电磁屏蔽材料的选用经验

时间： 2023-02-15 来源：ASIM官网

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在EMC电磁兼容行业，很多工程师在电路上增加了TVS静电管或者EMI共模滤波器之后，如果测试中，再出现ESD静电干扰和EMI辐射经常会束手无策，通常就会用到“屏蔽”这种措施，然而，屏蔽材料的种类也是非常多，如何选择成本低、效果好的材料，并且还要便于生产操作，这往往也是EMC工程师需要认真考虑的问题。本文ASIM介绍一些电磁屏蔽材料的选用经验。

双向tvs管，EMI，共模滤波器，阿赛姆具有较高电导率、磁导率的材料可用做屏蔽材料。常用的有钢板、铝板、铝箔、铜板、铜箔等。也可以在塑料机箱上喷涂镍漆或铜漆以实现屏蔽。屏蔽机箱的屏蔽效能除了与所选屏蔽材料的电导率、磁导率和厚度有关外，在很大程度上还依赖于机箱的结构，即其导电连续性。任何实用的屏蔽机箱上都有缝隙，这些缝隙是由于屏蔽板之间临时性搭接所造成的。

由于缝隙的导电不连续性，在缝隙处会产生电磁泄漏。因此，对于永久性搭接，可以使用焊接的方法消除缝隙。如果使用铆接或螺钉连接，间距必须足够小。对于非永久性搭接，采用电磁密封衬垫等材料则是十分有效的手段。磁材料屏蔽体的屏蔽效果与频率的关系如下：在磁材料屏蔽体的情形，一般物质磁导率很小，在恒定磁场中磁力线虽然在屏蔽体中集中，但由于磁导率很小，这种磁力线集中的作用很小，因而磁屏蔽效能很小。

在低频区中，随着频率的增高在屏蔽体内会产生涡流，其结果是消耗了磁场能，磁屏蔽效能有所提高。继续升高频率时，由于集肤效应的作用能透人屏蔽体进人内部的电磁能量很少，磁屏蔽效能大大提高。常有材料用：电磁密封衬垫、导电化合物、截止波导管、导电玻璃、导电膜片、导电镀膜、金属丝网、穿孔金属板等。

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Aavid(爱美达)--BOYD热管理(导热界面材料)选型指南

目录- Aavid Company profile Thermal Interface Materials Overview Thermo-silicone interface material Thermo-silicone caps and tube Thermally conductive soft-silicone film Thermally conductive silicone-free films Thermally conductive phase-change material Graphite films EMI-shielding materials Thermally conductive ceramics Insulating films Insulating bushings POWERCLIP Heat sinks Films/ceramics/Phase-change materials Standard configurations and dimensions Thermal properties products naming rules Thermal Properties Products Technical Information

型号- KU 3-380/M3,KU-BG 30,KU-TCS100,KU-A 30,KU-TXE 50,KU-CR-MINI,KU 3-325,KU 1-159,KU-K/CU/K,KU-EGF 45,KU-CG 80,KU-TXS 100,KU-CRFI 75,KU 3-334/3,KU 6-628/0,KU-ALN,KU-ALO,KU 7-724/AXX/CP,KU-BG 20,KU-ALC 5/315-157,KU 6-631/0,KU-ALF,KU 3-310,KU 6-651/PA,KU-ALC,KU-ALC 5/241-229,KU-TCSP400,S SERIES,KU-KAPIT,KU 6-655/SR,KU-ALC 5/370-134,KU-KAHN,KU-SAS20,KU-TCAS,KU 6-650/SR,KU-TCAT,KU-BGDX 80,KU-TCS200,KU-KAPIF,KU 1-019,KU 3-300,C SERIES,KU-TXE 100,KU 3-303,KU-ALC 5/250-125,KU 1-016,KU-LEXB0.25,KU-A 45,KU 4-440/3.1,KU 4-461,KU-ALC 5/374-244,KU-SAS,KU-TCS,KU-KE11,KU-SAS10,KU-CRF,KU -7-723/16/CXX/CP,KU-TCSP500,KU-TCAB,KU 4-453,KU-TCAD,KU 4-450,KU 4-451,KU-TDFBS,KU 3-396/24,KU-ALC 5,KU-NOMA,KU 6-652/PA,KU-TDFBH,KU 4-445,KU-TDFD,KU 4-443,KU-TDFF,KU 4-441,KU 6-656/SR,KU 4-440/4.0,KU-CRF-MINI,KU 6-624/K/CU/K,KU 2-ZUB01-567,KU-ALC 5/370-339,KU-ALC 5/315-114,KU-TCSP200,KU-ALC 5/750-370,KU-PA247/2,KU-A 80,KU-CR-125,KU-TCSP,KU 4-430,KU 6-651/SR,KU 7-723/CXX/CP,KU 7-724/SXX/CP,KU-LEXA0.25,KU-C 30,KU 6-623/0,KU-ALC 5/460-230,KU-PCL12,KU-ALC 5/354-154,KU-S 30,KU 7-723/16/SXX/CP,KU-ALC 5/386-252,KU-THE 300,KU-KG,KU-ALC 5/350-281,KU-ALC 5/366-197,KU-KC15,KU-CBGA,KU 4-498/X,KU 6-653/PA,KU-TCSP300,KU-CRFI,KU-S 45,KU 6-657/SR,KU-ALC 5/125-125,KU-TXST 100,KU 6-624/0,KU-ALC 5/425-244,KU-TCS500,KU-BGD,KU-BGDX,KU 3-396/24/4,KU-KG 25,KU-THE 200,KU 6-652/SR,KU 6-665/PA,KU-C 45,KU-ALC 5/456-236,KU-TCSP50,KU-KAMT,KU-ALC 5/550-370,KU-ALC 5/197-114,KU 4-499/X,KU 3-396,KU 3-397,KU 3-398,KU-THE 100,KU 3-399,KU-BGD 80,KU 7-723/16/AXX/CP,KU-TXST 200,KU-ALC 5/225-175,KU-THE 50,KU-ALF 5,KU 3-385,KU-TXST,KU 6-654/PA,KU 3-386,KU 3-387,KU-CRF-125,KU 3-388,KU 3-389,KU 6-658/SR,KU-TXS 50,KU 3-391,KU-CG 20,KU 3-392,KU 3-393,KU 3-394,KU 3-395,KU-ALC 5/106-108,KU-C 80,KU-ALC 5/425-134,KU-ALC 5/075-080,KU 7-723/AXX/CP,KU-ALC 5/630-302,KU-BG 80,KU-PCL,KU-TCSP100,KU-CG 30,KU 3-380,KU-ALC 5/206-206,KU 3-381,KU 3-382,KU 3-383,KU 3-384,KU-S 80,KU-TXST 300,KU 7-723/SXX/CP,KU 6-619,KU-TCS300,KU-KG 75,KU-MYA,KU 3-368,KU 3-369,KU 6-623/K/CU/K,KU 1-086,KU 7-700/AXX /CP,KU-TXE 200,KU-BGD 45,KU-ALC 5/112-112,KU-TXS 300,KU-TXST50,KU-CG 45,KU-CBMC,KU-ALC 5/100-100,KU 6-655/PA,KU-LEXC0.25,KU-EGF 20,KU-CBMA,KU-BGD 30,KU 6-620,KU 3-360,KU-BGDX 08,KU 6-624,KU-LEXA,KU 6-623,KU-LEXC,KU-LEXB,KU 6-628,KU-EGF,KU-BG,KU 1-086/1,KU-THS,A SERIES,KU-TCS400,KU-KG 50,KU-ALC 5/445-354,KU-EGF 30,KU-SFH,KU-SFI,KU-ALC 5/220-064,KU-TCS50,KU-SFG,KU-THE,KU-BGD 20,KU-TXE 300,KU-SFB,KU-TXS,KU 6-650/PA,KU 6-631,KU-ALC 5/346-154,KU 1-182,KU 6-630,KU 3-333/3,KU-TXS 200,KU 6-654/SR,KU-ALC 5/449-449,KU-BGDX 30,KU-TXE,KU 3-339,KU 6-630/0,KU-ALC 5/276-106,KU-ALC 5/480-150,KU 3-333,KU 3-334,KU-BG 45,KU-CG,KU - CG 20 - 0H -KS -20 X 25 MM - L,KU-KG 38,KU 1-072,KU-ALC 5/244-102,KU 4-495,KU 3-340,KU 2-ZUB 38-1,KU-ALC 5/402-358,KU-BGDX 20,KU-CR,KU 1-070,KU 7-724/CXX/CP,KU-ALC 5/364-081,KU-KG/S

选型指南 - 爱美达 - 2016年 PDF 英文下载

三元电子（SAINTYEAR ELECTRONIC）主要从事导热材料、吸波材料、柔性电磁屏蔽材料的研发、生产和服务，产品主要应用于消费电子、通讯、汽车、军工和家电等行业，是国内领先的、专业的导热和电磁屏蔽解决方案服务商，是国内外众多一线品牌企业的合作伙伴。

导热垫片导热材料导热界面材料导热凝胶导热绝缘片导热硅脂导热相变材料导热泥导热石墨片新能源汽车用导热材料电磁兼容材料电磁屏蔽材料平纹导电布格纹导电布无纺导电布网纱导电布导电泡绵涂色导电布导电布胶带热熔导电布阻燃热熔布导电织物导电海绵导电胶带导电橡胶储热隔热材料导热储热凝胶相变储能片防火隔热垫吸波材料吸波贴片吸波凝胶导热吸波片导热吸波凝胶吸波片灌封粘接材料导热灌封胶导热粘接胶导热粘接片

授权代理商 - 世强先进（深圳）科技股份有限公司线上商城技术资料

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海克赛德携亮点产品亮相2024第四届雷达未来大会，分享最新市场趋势和应用案例

海克赛德展示的产品，包括电磁屏蔽材料、热界面材料、均温散热组件、液冷机箱、储能模组等。此次展览不仅有产品展示，还有技术交流活动，分享最新市场趋势和应用案例。我们的专家团队亲临现场，为您答疑解惑，并提供个性化的解决方案建议。

原厂动态发布时间 : 2024-05-22

仕来高（Schlegel）EMI电磁屏蔽材料选型指南（中文）

描述- 仕来高电子制品有限公司（简称SEM）于1987年发明了导电布包裹泡绵（FOF导电泡绵），为高度柔软性导电布制定了行业标准。40多年来，SEM对基材，电镀工艺和防护涂层的持续研究和开发，让SEM的导电布具有更好的屏蔽效能，卓越的环境耐久性和耐磨性能。

型号- 5927-0100-3,5923-0100-3,5926-0079-2,5923-0157-2,EJ2,EJ1,EJ4,EJ6,EJ5,5927-0157-2,EJ8,EJ7,EJ9,EK1,EK3,EK2,EK5,EK4,EK7,EK6,EK9,EK8,5935-0200-9,EM3,EM2,EM5,EM4,EM7,5941-0100-3,EM6,EM9,EM8,E29XYG-0219,CF-78-20NR,5927-0200-5,EN2,EN1,EN4,EN3,EN6,EN5,EN8,EN9,5935-0100-7,EW00.00004,5935-0157-6,EW00.00002,EW00.00003,EW00.00001,5923-0079-2,EP2,5921-0050-6,EP1,EP4,5921-0118-8,EP3,EP6,EP5,EP8,EP9,CF-78-30NR,E02,EQ3,E01,EQ2,E04,E03,EQ4,E06,EQ7,E05,EQ6,E08,EQ9,E07,EQ8,E09,E29XYG-0131,5926-0100-3,E11,ER2,E10,ER1,E13,ER4,E12,ER3,ER6,E14,ER5,E17,ER8,E16,ER7,E19,E18,ER9,E1A,E58XYG-0131,E1C,E1B,E1E,UC301612,E1D,E1G,E1F,E1H,E1K,E1J,E1M,E20,ES1,E1N,ES3,E1Q,E21,ES2,E1P,E24,ES5,ES4,E1R,E26,ES7,E1U,E25,ES6,E1T,E28,ES9,E1W,E27,ES8,E1V,E1Y,E29,E2B,E2A,E2D,E2C,E2F,E2E,E2H,E2G,E2J,E2L,E2K,E2N,E2M,E31,ET2,E2P,E30,ET1,5923-0031-0,ET4,E2R,E32,ET3,E35,ET6,E2T,ET5,E2S,E37,ET8,E2V,E36,ET7,E2U,E39,E2X,ET9,E2W,E2Y,5926-0157-2,E3A,E3C,E3B,E3E,E3D,E3G,E3F,E3H,E3K,E3J,5941-0031-0,E3M,E3L,E40,EU1,E3Q,E41,EU2,E3P,E44,EU5,E3S,E43,EU4,EU7,E45,EU9,E3W,E47,EU8,E3V,E3Y,E49,E3X,E4B,E4A,E4D,E4C,E4F,E4E,E4H,E4J,E4L,E4K,E4N,E4M,E51,EV2,E4P,EV1,E53,E4R,5935-0079-4,E58XYG-0219,E52,EV3,E4Q,E55,EV6,E4T,E4S,E57,EV8,E4V,E56,EV7,E4U,E59,E4X,E58,EV9,E4W,E4Y,E5A,E29XYG-0164,E5C,E5B,E29XYG-0283,E5G,5921-0200-5,EXXXXXXXXXXHF,E5K,E5J,E5M,CF-78-50NR,E60,EW1,E5N,E62,EW3,E61,EW2,E64,EW5,E5S,E63,EW4,E5R,E66,EW7,E5U,E65,EW6,E5T,E68,EW9,E5W,E67,EW8,E5V,E5Y,E6B,E29XYG-0274,E6C,E6H,E6G,E70,E73,EX4,EX3,E75,EX6,E74,EX5,E77,EX8,EX7,E79,E78,5926-0200-5,5941-0079-8,E80,EY1,EY3,E81,EY2,E84,EY5,E83,EY4,E86,EY7,E85,EY6,E88,EY9,E87,EY8,5935-0250-4,5921-0100-3,EW20.00028,EW20.00029,EW20.00024,EW20.00025,EW20.00026,EW20.00027,E91,EW20.00020,E90,EW20.00021,E93,EW20.00022,EW20.00023,E97,E96,E99,5921-0157-2,E98,CF-78-14FR,EW20.00018,EW20.00019,EW20.00015,EW20.00016,5935-0031-4,EW20.00011,EW20.00012,EW20.00007,EW20.00008,EW20.00003,EW20.00004,5941-0050-6,5941-0118-2,5927-0050-6,5923-0050-6,5927-0118-8,5923-0118-8,CF-78-05NR,5926-0118-8,5926-0050-6,E58XYG-0164,E58XYG-0283,E58XYG-0274,EA1,EA3,EA5,EW10.00022,EW10.00021,EA7,EW10.00020,EA9,EW10.00026,EA8,EW10.00025,EW10.00024,EW10.00023,5935-0118-8,CF-78-14NR,5935-0050-0,EB1,EB4,CF-78-10FR,EB5,EB9,5941-0200-5,EC3,EC5,EC7,EC6,EC9,5927-0031-0,ED2,ED1,ED4,ED3,ED5,ED8,5921-0079-2,ED7,ED9,CF-78-20FR,5926-0031-0,5923-0200-5,EG3,EG2,EG5,EW10.00006,EG4,EW10.00005,EG7,EG6,EG9,EG8,EW10.00009,EW10.00002,EW10.00001,5921-0031-0,EH2,EH1,EH4,EW10.00019,EH3,EW10.00018,EH6,EW10.00017,EH5,EW10.00016,EH8,EH7,EH9,CF-78-30FR,EW10.00010,5927-0079-2,EW10.00015,EW10.00014,EW10.00013

选型指南 - 仕来高 - 08/2023 PDF 中文下载

海克赛德亮相第四届雷达未来大会，展示电磁屏蔽材料、热界面材料、均温散热组件和液冷机箱在内的一系列创新产品

2024第四届雷达未来大会”在西安拉开帷幕。此次雷达展上，海克赛德展示了包括电磁屏蔽材料、热界面材料、均温散热组件和液冷机箱在内的一系列创新产品。

原厂动态发布时间 : 2024-05-21

仕来高（Schlegel）EMI电磁屏蔽材料选型指南（英文）

描述- SEM's fabrics are used in the marketplace, from grounding pads in consumer products to high-frequency shielding gaskets in supercomputers. FOF technology provides continuous contact with applications,ensuring consistent shielding efficiency at very high frequencies and is non-abrasive to plated and painted surfaces.

选型指南 - 仕来高 - 08/2023 PDF 英文下载