【应用】莱尔德板级屏蔽罩BMI-S-210-C用于LCD驱动板接口处信号屏蔽,解决EMI测试超标问题
随着电力电子技术日益向高频率、高速度、高灵敏度的方向发展,电力、电子设备的发射功率越来越大,灵敏度越来越高,接受微弱信号的能力越来越强。电磁兼容已成为当今世界电气工业的热点问题,随之而来的就是电磁干扰,成为了电气电子设备及其构成的系统正常工作的突出障碍。
现一显示屏驱动器项目,客户做的LCD驱动板,其中LCD接口信号和对Flash读取的信号频率较高,主要是MCU和Flash之间有信号干扰,在EMI测试时,30~200MHz都有干扰。因此客户需要屏蔽材料来屏蔽电磁干扰。
针对上述客户的问题,推荐LAIRD的板级屏蔽罩BMI-S-210-C,该屏蔽罩封装尺寸44.6mm x 31.1mm x 2.4mm,尺寸满足客户的需求。该屏蔽罩使用0.2mm的冷轧钢材料,具有良好的硬度,使得屏蔽罩不易变形,且维修方便。屏蔽罩使用雾锡为镀层,可焊性良好、导电性好、耐腐蚀能力强。并且具有良好的屏蔽效果,可以有效的防止其他器件的干扰。
如下是Laird板级屏蔽罩BMI-S-210-C的一技术参数,可供查阅。
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【选型】Laird(莱尔德) 电磁屏蔽材料选型指南
目录- 板级屏蔽罩 通风孔盖板 泡棉材料 导电弹性体 微波吸收材料
型号- 8904-0117-XX,ECE013,4693-PA-51H-01200,ECE011,8863-0150,8404-0121-XX,8906-0171-XX,8560-0099-XX,8907-0140-XX,8104-0104-40,8410-0105-50,8516-0201-XX,8908-0108-XX,BMI-S-209-F,4740,8401-0133-XX,8863-0140,8863-0145,8907-0174-XX,8563-0108-XX,8563-0133-XX,8403-0106-50,ECE032,ECE080/094,8563-0213-XX,8403-0105-XX,8901-0117-XX,8863-0130,8863-0135,4741,4500,4742,4501,4502,4744,8412-01XX-54,D6-785FX,8412-01XX-52,8915-0130-XX,8408-0251-XX,8901-0176-XX,4520,8412-01XX-55,8918-0105-XX,8402-01XX-XX,8412-01XX-50,8413-0105-64,8415-0112-64,8863-0120,4518,8904-0129-XX,8901-0140-XX,8103-0101-40,8863-0125,4512,4513,4516,8401-0121-XX,4517,4693 - PA - 51H - 01200,8563-0131-XX,4531,8560-0114-XX FIG. 2,8401-0155-XX,8863-0196,8412-01XX-61,8863-0197,8412-01XX-60,8560-0108-XX,8560-0143-XX,4529,4N64EF51N00225,4N64EM51N00171,8863-0198,8863-0199,8103-0125-40,4522,8907-0129-XX,4524,4525,8908-0180-XX,4528,2238 -.25,DS005,8103-0113-40,8563-0077-XX,BMI-S-207-F,4541,4300,4542,4N64ER51N00225,8863-0180,8104-01XX-48,8104-01XX-49,8415-0110-64,8908-0118-XX,8863-0183,8863-0184,8516-0211-XX,87-580,8909-0122-XX,4532,86-785,BMI-S-305,4533,8905-0157-XX,4534,4536,SNK60,4537,8401-0123-XX,SNC70-RXP,8868-0085,4791,8903-0171-XX,8560-0330-XX,4792,4N64EP51N00171,4795,8863-0170,8401-0111-XX,G1W,8905-0180-XX,8409-0173-50,8863-0175,8868-0084,8868-0081,8902-0135-XX,8904-0105-XX,8563-0089-XX,8860-0093-100-XX,4302,4786,4787,4788,4789,4548,8563-0165-XX,8902-0101-XX,8868-0075,4320,8863-0160,8101-0104-40,8868-0070,8863-0165,8409-0106-50,8414-0108-64,8402-0102-XX,4796,4797,4798,8403-0115-XX,4315,4799,8563-0143-XX,M83528/001X005,M83528/001X006,4570,M83528/001X003,4571,8563-0106-XX,M83528/001X004,4330,4572,M83528/001X009,4573,M83528/001X007,4575,M83528/001X008,8860-0093-324-XX,8401-0113-XX,8416-0320-22,5206 -.25,8563-0090-XX,2388,8904-0137-XX,4325,4568,4569,M83528/001X001,M83528/001X002,8404-0118-XX,8912-0140-XX,8416-0120-23,8101-01XX-49,8101-01XX-48,8550-XXXX-YY-ZZ,4582,8101-01XX-47,4583,8412-0104-50,4100,4584,8903-0122-XX,8101-0102-40,5092 - S,8101-01XX-41,8417-3XXX-62,8101-01XX-40,8416-0320-21,4N64EW51N00281,8103-0103-40,4577,4579,4339,8563-0279-XX,8909-0178-XX,4591,8410-0107-50,8908-0157-XX,8890-MGS103072-93,4593,4594,4110,4111,4112,4596,4113,4355,4597,8414-0104-64,8408-0212-XX,8903-0110-XX,8563-0255-XX,2240 -.25,8911-0102-XX,4105,4106,8104-0106-40,4349,8401-0101-XX,4360,8103-0115-40,4361,4120,4363,4121,8906-0116-XX,8300-0100-44,4123,4365,8563-0079-XX,8860-0093-300-XX,4114,4356,4115,4357,4599,8402-0106-XX,8908-0101-XX,4358,8102-0209-40,4117,4359,5206,8560-0113-XX,8902-0108-XX,8907-0107-XX,M83528/001X013,M83528/001X010,M83528/001X011,4370,4372,8406-01XX-55,4131,8907-0109-XX,8406-01XX-54,8403-0107-XX,4133,4375,4134,4376,8416-0120-57,8563-0211-XX,8916-0135-XX,T1G,8563-0080-XX,M83528/002X011,M83528/002X012,M83528/002X013,8401-0103-XX,8906-0175-XX,M83528/002X014,M83528/002X015,M83528/002X017,M83528/002X018,M83528/002X019,8406-01XX-60,4126,4368,8104-0108-40,8862-0105,8563-0257-XX,SNN60-RXP,8910-0125-XX,8862-0100,8406-01XX-61,87580,8905-0116-XX,8413-0103-64,4142,4143,8909-0102-XX,8860-0032-324-XX,4387,8860-0032-150-XX,8908-0177-XX,8401-0137-XX,M83528/002X020,M83528/002X021,M83528/002X022,8404-0108-XX,M83528/002X024,M83528/002X026,8402-0104-XX,M83528/002X028,8912-0150-XX,8414-0106-64,4136,4379,8408-0200-XX,8102-0207-40,8909-0168-XX,8406-01XX-52,ECE072/093,8563-0128-XX,8406-01XX-50,4150,4392,4394,4157,8904-0125-XX,76-750,SNL60-RXP,4391,8560-0145-XX,8903-0156-XX,8560-0097-XX,4389,8901-0107-XX,4148,8906-0118-XX,8516-0203-XX,4161,4163,4164,8412-0102-50,8563-0327-XX,M83528/001X0012,8904-0170-XX,8912-0117-XX,8563-0069-XX,4168,8901-0130-XX,4160,221,M83528/002X006,M83528/002X007,8103-0105-40,8907-0176-XX,4158,8862-0114,8862-0113,8401-0125-XX,8862-0112,4172,4173,8864-2618,4176,8907-0157-XX,4179,8906-0107-XX,R1G,4170,8903-0177-XX,4171,8560-0104-XX,8912-0102-XX,89XX-01XX-43,8103-0106-40,89XX-01XX-42,8918-0135-XX,89XX-01XX-40,4169,8860-0100-100-XX,4184,8403-0112-XX,4186,8104-0109-40,4189,4N64EH51N00290,4181,8864-3714,BMI-S-201-F,4182,8864-3715,8401-0127-XX,SNC70-HXP,2238 - S,8402-0108-XX,843X-2XXX-X,8911-0145-XX,8414-01XX-65,8404-0115-XX,8414-01XX-64,4194,8560-0116-XX,8550,8103-0118-40,4198,4199,8907-0180-XX,8403-01XX-55,8403-01XX-54,8560-0311-XX,8403-01XX-52,4192,8902-0150-XX,8401-0115-XX,8403-01XX-50,SNN65-HXP,8860-0125-300-XX,8408-0245-XX,3027-235,8563-0161-XX,8905-0137-XX,8910-0140-XX,8904-0168-XX,8408-0209-XX,8403-0101-50,8409-0158-50,8403-01XX-60,8913-0140-XX,8403-01XX-61,8415-0106-64,8909-0105-XX,8560-0114-XX,8902-0117-XX,8563-0116-XX,8404-0105-XX,BMI-S-210-F,8401-0117-XX,M83528/009X002,M83528/009X001,8904-0156-XX,SNC70,8864-0231,8516-0205-XX,M83528/009X005,8560-0435-XX,M83528/009X004,8890 0001 XX A,8563-0071-XX,M83528/009X003,M83528/009X009,M83528/009X008,8409-0168-50,8904-0110-XX,M83528/009X007,8408-0257-XX,3078-500,8864-3515,8563-0254-XX,8910-0105-XX,8415-0104-64,8902-0140-XX,8907-0101-XX,8403-0109-XX,8300-0038-44,8906-0109-XX,8563-0095-XX,8103-0108-40,8911-0135-XX,8860-0032-300-
Laird(莱尔德)板级屏蔽罩和触头选型指南
目录- BOARD LEVEL SHIELDS AND CONTACTS INTRODUCTION STANDARD DESIGN SHIELDS CONTACTS CUSTOM DESIGN SHIELDS AND CONTACTS
型号- 97-2013,97-870,LT-BLS-136,LT-BLS-213,LT-BLS-138,LT-BLS-215,LT-BLS-137,LT-BLS-139,LT-BLS-216,BMI-S-210-F,870,LT-BLS-219,BMIS-203,BMIS-202,MIS-106,BMIS-205,BMIS-204,97-2016,97-2015,BMIS-201,97-2014,97-2002,97-2000,LT-BLS-224,97-860,LT-BLS-226,BMIS-207,BMI-S-207-F,LT-BLS-225,BMIS-206,BMIS-209,BMI-S-209-F,LT-BLS-227,BMIC-004,97-866,BMI-S-203-F,BMIC-006,BMI-S-205-F,LT-BLS-141,BMI-C-007-01,BMIC-001,LT-BLS-143,BMIC-002,BMI-S-201-F,BMIS-208 .,BMI-S-106,BMI-S-107,LT-BLS-229,97-2008,BMI-S-104,97-2007,BMI-S-105,97-2006,BMI-S-102,BMIS-210,97-2005,BMI-S-103,97-2004,97-2003,BMI-S-101,BMI-C-001-SN,BMI-C-010-,BMIS-104,BMIS-103,BMIS-105,BMI-S-210,BMIS-102,BMIS-101,BMIC-007-01,97-2100,BMI-S-206-F,BMI-S-209,BMIS-107,BMI-S-207,BMI-S-208-F,BMI-S-208,BMI-S-202-F,BMI-C-006,BMI-S-204-F,BMI-C-002,BMI-C-001,BMI-C-004,BMI-C-004-SN,BMI-S-205,866,BMI-S-206
【成功案例】Laird表面贴装两片式板级硬角屏蔽罩解决车载以太网辐射超标问题
车载电子EMC法规中对导航频段的限值要求非常严苛,我们的一款车载音响产品中,车载以太网模块的辐射在俄罗斯导航系统频段超标严重,对噪声源头进行分析后决定采用屏蔽罩进行噪声抑制,通过对屏蔽罩形态和材料进行选择后,最后找Laird按笔者案例的实际情况定制了一款屏蔽罩,采用Laird设计的表面贴装两片式板级硬角屏蔽罩后,顺利的解决了问题。
Laird屏蔽罩选型表
Laird屏蔽罩选型,提供一体式板级屏蔽罩/One-Piece Board Level Shield、两件式板级屏蔽罩(Two-Piece Board Level Shield Cover/Two-Piece Board Level Shield Frame)。
产品型号
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品类
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Length (mm)
|
Width(mm)
|
Height (mm)
|
Ventilation
|
BMI-S-101
|
One-Piece Board Level Shield
|
13.66
|
13.00
|
2.54
|
Ventilation
|
选型表 - LAIRD 立即选型
Laird两件式板级屏蔽选型表
Laird两件式屏蔽罩为用户提供了检查或维修屏蔽部件的灵活性,而不必冒着拆除整个屏蔽罩的风险。盖子可以扣上和拆下,使维修更快、更容易。电路板返工减少。材质:Pre-plated CRS; Nickel-Silver alloys; Stainless Steel; Aluminum alloys
产品型号
|
品类
|
Length (mm)
|
Width (mm)
|
Height (mm)
|
Ventilation
|
BMI-S-230-F-R
|
Two-Piece Board Level Shield Frame
|
38.10
|
50.80
|
5.08
|
n/a
|
选型表 - LAIRD 立即选型
PCB板上的电磁屏蔽罩一般用什么材料,多厚。可以采用SMT工艺生产。
PCB板上的电磁屏蔽罩材料包括 镍合金,铜合金,不锈钢等。世强代理的Laird(莱尔德) 板级屏蔽罩,选型具体可参考https://www.sekorm.com/chapter/2713.html
【产品】复合铝膜型屏蔽盖板级屏蔽罩,超轻超薄板级屏蔽罩解决方案
Laird公司推出的复合铝膜型屏蔽盖,与传统金属屏蔽盖相比可以达到减重85%,实现很多设备体积小薄的要求。采用工作高度更低的复合铝膜型屏蔽盖也给设计者提供了更多的在Z轴方向上的设计自由度。
【产品】可消除不必要的耦合的Shieldzorb吸波增强屏蔽罩,支持定制BLS设计和材料
Laird(莱尔德科技)的 Shieldzorb 解决方案(吸波增强屏蔽罩)将吸波材料集成至板级屏蔽罩(BLS,简称屏蔽罩)上,以抑制腔体谐振、减少 BLS 中电子元件所产生的不必要的耦合和/或 BLS 中元件与附近射频天线之间所产生的耦合。
【技术】板级屏蔽罩效能影响因素浅析
板级屏蔽罩(BLS)广泛应用于各种电子产品或系统中,在解决电磁兼容问题中发挥重要作用。本文Laird从孔径对屏蔽效能的影响、孔径大小的影响、孔径/间隙结构的影响、EMI干扰源、BLS 接地、BLS 内部的介质材料等方面考察分析,综合介绍了这个话题。
Low Height Standard Two-Piece:Board Level Shields
型号- BMI-S-202-C-20,BMI-S-203-C-20,BMI-S-203-F-20-R,BMI-S-209-F-20-R,BMI-S-202-F-20-R,BMI-S-209-C-20
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实验室地址: 深圳 提交需求>
加工尺寸范围2~15英寸,产品有效加工尺寸:半断加工:2MM*600MM*900MM;全断加工:30MM*1600MM*2500MM;
最小起订量: 1000pcs 提交需求>
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