供应Fair-Rite全系产品8978151521 2643102002
供应Fair-Rite全系产品8978151521 2643102002
产品价格:¥0.25(人民币)
  • 规格:2631540002
  • 发货地:苏州
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  • 最小起订量:1个
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    会员级别:试用会员
    认证类型:企业认证
    企业证件:通过认证

    商铺名称:维创域贸易(深圳)贸易有限公司苏州分公司

    联系人:徐生(先生)

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    企业邮箱:164843852@qq.com

    联系地址:苏州吴中区金枫南路198号5幢803

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    联系我时,请说是在瑞启化工网上看到的,谢谢!

    商品详情
      维创域贸易有限公司苏州分公司  徐先生 18051732733 051268755133 长期供应Fair-Rite全系产品
      视频线等线材上,可有效屏蔽EMI/RFI干扰,隔离或滤除电源连接导线窜入设备电路的高频噪声脉冲干扰,如用在音视频电器电源线上能进一步提升音频及视频质量,无疑是音响发烧友的选择。用在音频线,视频线等各种发烧线材上,其增加音响系统纯净度,降低讯号线被电源线杂讯干扰.
      磁环
      电子设备辐射和泄漏的电磁波不仅严重干扰其他电子设备正常工作,导致设备功能紊乱、传输错误、还威胁着人类的健康与安全,危害非常大。因此降低电子设备的电磁干扰(EMI)已经是必须考虑的问题。

      吸收磁环,又称铁氧体磁环,简称磁环。它是电子电路中常用的抗干扰元件,对于高频噪声有很好的抑制作用,一般使用铁氧体材料(Mn-Zn)制成。

      磁环在不同的频率下有不同的阻抗特性,一般在低频时阻抗很小,当信号频率升高磁环表现的阻抗急剧升高。

      大家都知道,信号频率越高,越容易辐射出去(要买优质的电脑机箱也是要减小电磁泄漏),而一般的信号线都是没有屏蔽层的,那么这些信号线就成了很 好的天线,接收周围环境中各种杂乱的高频信号,而这些信号叠加在本来传输的信号上,甚至会改变原来传输的有用信号。那么在磁环作用下,使正常有用的信号很好的通过,又能很好的抑制高频干扰信号的通过,而且成本低廉。

      所以大家在显示器信号线,USB连接线,甚至高档键盘、鼠标上看的塑料疙瘩型的一体式磁环就不足为奇了。

      磁环的匝数选择

      将整束电缆穿过一个铁氧体磁环就构成了一个共模扼流圈,根据需要,也可以将电缆在磁环上面绕几匝。匝数越多,对频率较低的干扰抑制效果越好,而对频率较高的噪声抑制作用较弱。在实际工程中,要根据干扰电流的频率特点来调整磁环的匝数。通常当干扰信号的频带较宽时,可在电缆上套两个磁环,每个磁环绕不同的匝数,这样可以同时抑制高频干扰和低频干扰。从共模扼流圈作用的机理上看,其阻抗越大,对干扰抑制效果越明显。而共模扼流圈的阻抗来自共模电感Lcm=jwLcm,从公式中不难看出,对于一定频率的噪声,磁环的电感越大越好。但实际情况并非如此,因为实际的磁环上还有寄生电容,它的存在方式是与电感并联。当遇到高频干扰信号时,电容的容抗较小,将磁环的电感短路,从而使共模扼流圈失去作用
       
       

      Item Brand Mftrs No Description
      1 FAIR RITE 199000005 Expanded Cable and Connector EMI Suppres
      2 FAIR RITE 199000017 EMI SUPRESSION EVALUATION KITS
      3 FAIR RITE 199000018 Product Description:Fair-Rite Engineerin
      4 FAIR RITE 199000034 EMI SUPRESSION EVALUATION KITS
      5 FAIR RITE 199001401 EMI SUPRESSION EVALUATION KITS
      6 FAIR RITE 431164181 31 SNAP-IT ROUND CABLE SUPPRESSION CORE
      7 FAIR RITE 431164281 FERRITES IMPEDANCE:310OHMS; SIZE/DIMENSI
      8 FAIR RITE 431164951 FERRITE CORE IMPEDANCE:280OHM; SIZE/DIME
      9 FAIR RITE 431167281 Ferrites; Impedance: 240Ohms; Size/Dimen
      10 FAIR RITE 431173551 Ferrites; Impedance: 220Ohms; Size/Dimen
      11 FAIR RITE 443163951 EMI SUPRESSION CORES WITH CASES
      12 FAIR RITE 443164151 Round Cable Snap-Its, Cable Diameter-.50
      13 FAIR RITE 443164251 FERRITE ROUND CORE ((NW))
      14 FAIR RITE 443167251 EMI SUPRESSION CORES WITH CASES
      15 FAIR RITE 443625006 EMI SUPRESSION CORES WITH CASES
      16 FAIR RITE 444164181 44 SNAP-IT ROUND CABLE SUPPRESSION CORE
      17 FAIR RITE 444164281 44 SNAP-IT ROUND CABLE SUPPRESSION CORE
      18 FAIR RITE 444164951 Round Cable Core, EMI Suppression, with
      19 FAIR RITE 444167281 EMI SUPRESSION CORES WITH CASES
      20 FAIR RITE 444173551 Ferrite Core Impedance:94Ohm
      21 FAIR RITE 444176451 FERRITE CORE IMPEDANCE:175OHM
      22 FAIR RITE 2631102002 ROUND CABLE EMI SUPPRESSION CORES
      23 FAIR RITE 2631665702 Ferrite Core Impedance:225Ohm
      24 FAIR RITE 2643000101 Ferrites; Impedance: 40Ohms; Resistance:
      25 FAIR RITE 2643000801 Shield Bead, EMI, 92 ohm Impedance at 10
      26 FAIR RITE 2643000801 Shield Bead, EMI, 92 ohm Impedance at 10
      27 FAIR RITE 2643001501 Ferrites Resistance:35Ohms
      28 FAIR RITE 2643021801 Ferrite Bead Resistance:131Ohm
      29 FAIR RITE 2643102002 STATIC PROTECTION ((NW))
      30 FAIR RITE 2643102402 43 EMI Suppression Bead
      31 FAIR RITE 2643164251 43 SHIELD BEAD
      32 FAIR RITE 2643166651 Flat cable EMI suppression core, (HxWxD
      33 FAIR RITE 2643166851 Flat cable EMI suppression core, (HxWxD
      34 FAIR RITE 2643167851 43 Flat Cable EMI Suppression Core
      35 FAIR RITE 2643169552 43 Flat Cable EMI Suppression Core
      36 FAIR RITE 2643375002 EMI SHIELD BEADS
      37 FAIR RITE 2643480002 Round cable EMI suppression core, 1 in.
      38 FAIR RITE 2643540002 ROUND CABLE EMI SUPPRESSION CORES
      39 FAIR RITE 2643540402 43 Round Cable EMI Suppression Core
      40 FAIR RITE 2643625002 Ferrite, E Core
      41 FAIR RITE 2643625102 43 Round Cable EMI Suppression Core
      42 FAIR RITE 2643626302 43 Round Cable EMI Suppression Core
      43 FAIR RITE 2643626402 43 ROUND CABLE EMI SUPPRESSION CORE
      44 FAIR RITE 2643626502 ROUND CABLE EMI SUPPRESSION CORES
      45 FAIR RITE 2643803802 ROUND CABLE EMI SUPPRESSION CORES
      46 FAIR RITE 2643804502 ROUND CABLE EMI SUPPRESSION CORES
      47 FAIR RITE 2643806402 ROUND CABLE EMI SUPPRESSION CORES

      48 FAIR RITE 2673000101 EMI suppression bead1 

      1 FAIR RITE 199000005 
      2 FAIR RITE 199000017 
      3 FAIR RITE 199000018 
      4 FAIR RITE 199000034 
      5 FAIR RITE 199001401 
      6 FAIR RITE 431164181 
      7 FAIR RITE 431164281 
      8 FAIR RITE 431164951 
      9 FAIR RITE 431167281 
      10 FAIR RITE 431173551 
      11 FAIR RITE 443163951 
      12 FAIR RITE 443164151 
      13 FAIR RITE 443164251 
      14 FAIR RITE 443167251 
      15 FAIR RITE 443625006 
      16 FAIR RITE 444164181 
      17 FAIR RITE 444164281 
      18 FAIR RITE 444164951 
      19 FAIR RITE 444167281 
      20 FAIR RITE 444173551 
      21 FAIR RITE 444176451 
      22 FAIR RITE 2631102002 
      23 FAIR RITE 2631665702 
      24 FAIR RITE 2643000101 
      25 FAIR RITE 2643000801 
      26 FAIR RITE 2643000801 
      27 FAIR RITE 2643001501 
      28 FAIR RITE 2643021801 
      29 FAIR RITE 2643102002 
      30 FAIR RITE 2643102402 
      31 FAIR RITE 2643164251 
      32 FAIR RITE 2643166651 
      33 FAIR RITE 2643166851 
      34 FAIR RITE 2643167851 
      35 FAIR RITE 2643169552 
      36 FAIR RITE 2643375002 
      37 FAIR RITE 2643480002 
      38 FAIR RITE 2643540002 
      39 FAIR RITE 2643540402 
      40 FAIR RITE 2643625002 
      41 FAIR RITE 2643625102 
      42 FAIR RITE 2643626302 
      43 FAIR RITE 2643626402 
      45 FAIR RITE 2643803802 
      46 FAIR RITE 2643804502 
      47 FAIR RITE 2643806402 
      48 FAIR RITE 2673000101 
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      52 FAIR RITE 2743001111 
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      74 FAIR RITE 2873000202 
      75 FAIR RITE 2873002402 
      76 FAIR RITE 2943666631 
      77 FAIR RITE 2943666681 
      78 FAIR RITE 2944666661 
      79 FAIR RITE 2944777741 
      80 FAIR RITE 2961666671 
      81 FAIR RITE 0443 164 051 
      82 FAIR RITE 0443 166 651 
      83 FAIR RITE 0443 167 251 
      84 FAIR RITE 0443163951B 
      85 FAIR RITE 0443164051B 
      86 FAIR RITE 0443164151B 
      87 FAIR RITE 0443164251B 
      88 FAIR RITE 0443166651B 
      89 FAIR RITE 0443167251B 
      90 FAIR RITE 0443625006B 
      91 FAIR RITE 0443665806B 
      92 FAIR RITE 0443800506B 
      93 FAIR RITE 0443806406B 
      94 FAIR RITE 2506031017Y0 
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      97 FAIR RITE 2508051217Y0 
      98 FAIR RITE 2508051217Z0 
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      109 FAIR RITE 264 3665 702 
      110 FAIR RITE 2643000101C 
      111 FAIR RITE 2643000301/F1 
      112 FAIR RITE 2643000301C 
      113 FAIR RITE 2643000801C 
      114 FAIR RITE 2643002402/E1 
      115 FAIR RITE 2643002402C 
      116 FAIR RITE 2643102002B 
      117 FAIR RITE 2643540002B 
      118 FAIR RITE 2643665702B 
      119 FAIR RITE 2643801002B 
      120 FAIR RITE 2643802702B 
      121 FAIR RITE 2643803802B 
      122 FAIR RITE 2643804502B 
      123 FAIR RITE 2673000101C 
      124 FAIR RITE 2673000301C 
      125 FAIR RITE 2743001112H 
      126 FAIR RITE 2743003112H 
      127 FAIR RITE 2743009112H 
      128 FAIR RITE 2743019447H 
      129 FAIR RITE 2743021447H 
      130 FAIR RITE 2743021447-TR 
      131 FAIR RITE 2944666631/G1 
      132 FAIR RITE 2944666631C 
      133 FAIR RITE 2944666661C 
      134 FAIR RITE 2944666671C 
      135 FAIR RITE 2944666671G


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