医疗产品USB TYPE-B端口传输的静电问题案例分析
一、前言
虽然医疗器械在我们日常生活中一般接触不到,但是它们在工作过程中一定要确保稳定运行,工作准确,时效性高。所以这些医疗产品在上市之前,都需要通过严厉的EMC测试,通过认证后才能在医院使用。
二、实际案例分享
某医疗器械公司药物鉴定系统产品,该产品可对某些药物进行种属鉴定分析。成品使用专利的图像采集技术,自动对鉴定结果进行分析判读,并自动生成检验报告单。
1.静电现象
(1)对TYPE-B端口外露金属部位做空气放电±8KV和接触放电±4KV测试,导致医疗设备与电脑的通信断开,需要对医疗设备进行重新上电以及对电脑软件重新启动才能正常使用,属于等级C;
(2)对220V交流电输入口做空气放电±8KV测试,导致医疗设备与电脑的通信断开,需要对医疗设备进行重新上电以及对电脑软件重新启动才能正常使用,属于等级C。
2.工作原理
电脑通过TYPE-B线连接医疗设备的转接板转成USB数据,再把USB数据传输到主板,通过主板控制医疗设备的电机转动以及其它功能。
如上图所示为TYPE-B转USB转接板的其中一个螺丝孔位置,这个位置连接TYPE-B外壳地并通过螺丝连接到设备内部大面积地,这个地与TYPE-B转USB板子的内部地做了隔离处理。
理论上这样设计在机器测试端是没有问题的,但是实际上静电测试时,板子做了分地处理,螺丝的接地阻抗过大,导致静电并不能通过螺丝泄放到地上,而是往电脑端回流,导致除了电脑与设备断开连接,电脑与鼠标也断开连接。
3.整改措施
(1)如上图所示,将TYPE-B的插接口外壳地与TYPE-B转USB转接板内部信号地进行连接,再通过四个金属螺丝和产品外壳进行搭接,改变静电泄放路径。
【理论分析】:
初始状态下,医疗设备电路板地层不完整,导致地阻抗过高,静电正常情况下会流向低阻抗回路,所以导致静电从TYPE-B接口流向电脑HUB,把电脑HUB电压抬高,导致连接HUB的设备不识别(静电流向图如上图红色部分),所以我们通过增大医疗设备电路板的接地面积,降低医疗设备地阻抗,使静电不再流向电脑HUB,而是流向医疗设备内部大面积地(静电流向图如下图红色部分)。
(2)在转接板的接口TYPE-B的引脚VUSB_5V以及D2-和D2+分别对地接入一个静电抑制器TEVC0R5V05B1X,降低静电对设备内部电路影响。
(3)在24V电源与地接入一个大电流共模滤波器TLDCM5030-2-501YF,避免静电耦合到24V直流电源电缆,影响主板通信。在将共模电感设计进电路的时候,我们需要注意共模电感下的地层需要掏空,滤波电路的输入、输出之间要做好隔离,共模电感才能达到很好的滤波作用。(具体可以参考上图设计)
4.整改结果
对TYPE-B接口处空气放电±8KV和接触放电±4KV,以及220V交流电输入口空气放电±8KV,产品工作正常,没有异常现象,达到等级A,可以通过测试。
三、总结
医疗器械的设计以及是如何检测的我们并不清楚,但是关于EMC方面的测试整改,尤其是在静电整改方面,我们最关心的是硬件设计和走线合理性以及如何防止静电进入芯片造成的影响,这个才是整改EMC问题的关键点。
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本文由ll转载自韬略科技EMC公众号,原文标题为:医疗产品TYPE-B传输的静电问题案例分析,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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公司介绍 碳化硅场效应管/碳化硅肖基特二极管/场效应管 超结场效应管/IGBT单管/可控硅 二极管 静电保护器件/瞬态抑制二极管 三极管/电源IC 运算放大器/达林顿晶体管阵列/整流桥/霍尔传感器 光耦/石英晶体谐振器
SLKOR - MOSFET,SIC场效应晶体管,SCR,DIODE,REFERENCE POWER SUPPLY,石英晶体,超级结MOSFET,开关二极管,低压差线性稳压器LDO,瞬态抑制二极管,可控硅光耦,高速光耦,双向可控硅,TVS,ZENER DIODE,石英晶体谐振器,GBT单管,达林顿晶体管阵列,PHOTO TRIAC,单向可控硅,光耦合器设备,SIC备用电池,双极性结型晶体管,碳化硅肖特基二极管,静电放电,FAST RECOVERY DIODE,稳压二极管,HIGH-SPEED OPTOCOUPLERS,光电三端双向可控硅,静电保护器件,SIC MOSFET,肖特基二极管,DARLINGTON ARRAY,直流-直流,OPERATIONAL AMPLIFIER,HALL SENSOR,整流桥,光敏晶体管,电源IC,三极管,基准电源,碳化硅场效应管,RECTIFIER BRIDGE,快恢复二极管,参考电源,HALL传感器,齐纳二极管,SIC SBD,DC-DC,IGBT,LDO,高速光耦合器,ESD,OPTICALCOUPLER EQUIPMENT,PHOTO TRANSISTOR,碳化硅肖基特二极管,整流二极管,QUARTZ CRYSTAL,RECTIFIER DIODE,SCHOTTKY DIODE,晶体管光耦,霍尔传感器,SWITCHING DIODE,SUPER JUNCTION MOSFET,超结场效应管,低压差线性稳压器,可控硅,BIPOLAR JUNCTION TRANSISTOR,运算放大器,三合会,达林顿阵列,场效应管,光耦,IGBT单管,TRIACS,二极管,运放,BTW69,MB10S,SL25T135FL,BTA26-1000,SL2306,SL2307,MB10F,SL2308,SMCJ440CA,SL2309,SL55X,SL40N60C,SL2310,SL2312,SL3400,SL54X,SL3402,SL3404,SL4614,RS1A,RS1M,SMF5.0CA,SS120F,SL13N50FS,MMBT4401,FMMT591,MMBT4403,SLESDL0603-24,LM317,2N5551,WE07DF-B,MMSZ5259B,SL2016384MXXX,S2MB,SL2301,SL2302,SL53X,SL2305,1SMB5921B,BTB20-600,SL322526MXXX,SL25N10,S2MF,SLESD8D36V,SL252025MXXX,SL201624MXXX,SLESD5Z5.0C,SL201616MXXX,2SK3018W,SL4949,SS52BF,2SB1261,SL10N65F,ZM4727,2SB1132,1SMA4777A,DB307S,SL1609SH,SL8N65F,SL05N06A,GBLC15CI,2SA812,SLESD8D15V,FMMT493,SMDJ170A,FMMT491,WE05DF-BS,2SC3357,SL78LXX,SL1609SL,SMF5.0A,US1AF,SL12020BT,MMBZ5221B,MMDL914,SL1609TH,SL05N06Z,RS2A,SL42764,SL1609TL,SL53N65CT,SS320BF,RS2M,SLESD5Z7V0,FMMT489,UMB10F,GBLC03CI,MM5Z2V0,MMBT5401,BT136-600,SS22,LMV321,SF1006DS,SL403,2N5401,SL6520B,SL12030BT,KBL4005,UMB1F,SMF58CA,SS32,SMBJ5.0,2SK3018,SMBJ170CA,KBL410,BTA60-1200,GBLC12CI,US2AB,SL322512MXXX,WE24DF-B,SS12,SL3N170AP,US2AF,SMF58A,SL503224MXXX,SL50T65FL,SL1619SH,SL322527MXXX,SL42744D,SL1619SL,SS210B,LM321,SLESDL0603-16,SL201632MXXX,GBU410,IRLML6401,BCP51,BCP53,BCP52,BCP55,BCP54,BZX84C43,BCP56,SL1619TH,SL2733,SL1619TL,SL52X,TL432,TL431,SS52,NUP2105LT1G,SL201625MXXX,SL49SM3579M20P-20,SL252026MXXX,BTA80-1200,SLESDL0603-05,BCP68,SLESD8D3V3,MMSZ5221B,TL431B,SL49SM26M20P-20,F1A,TL431A,DB207S,GBLC24CI,SS220F,2N7002E,BT136-800,F1M,SL85XXX,SL4822A,SL76N60CT,MC34063S,PC817,SL18N50F,SL2328A,BT137-600,MMBZ5262B,SM24C,SM36C,LMV358,RS3AB,SS310C,SS310B,DB107S,SM12C,DB301S,SL40T120FL,KBL610,SL40N65CF,SL80N65CTL,SL12005B,GBP4005,SL49SM25M20P-20,SL22N120A,SL002N02K,SLESD5Z24,MMDT2222A,US2MF,SL503225MXXX,US2MB,SL252024MXXX,SLESD3B5CM,SL05N10A,SL12P03S,C945,US2A,BFG520,SL252016MXXX,SL322532MXXX,SL2319A,SL40N65CT,SLESD5Z36,GBU6005,RS2AF,SL9013MXXXX,SS320F,US2M,SL73XX,ULN2803,SD20C,2SB1197K,SL4409N,ZMM2V0,SL12015B,SLESD5.0U035,US1A,SL10N120A,BTA08-600,SL0501,SL8205S,SL75T65FL1,US1M,SL80N120A,BAS316,2SD965A,S8550,SMBJ5.0C,S6AC,M1,BSS123,SL0601,LM2904,M7,SLPESD15VL1BA,LM2902,GBP3005,SL2309A,SLPESD0402M07,BT137-800,MM1Z39B,SLESD9B5.0ST5G,SLPESD0402M05,SMCJ440A,SMAJ5.0CA,SLPESD0402M03,GBU8005,BTA12-600,SLPESD2CAN,SM20C,RS5AB,SS520F,SL201630MXXX,MMDT3904,BSS138,BTA41-1600,FR101,MMDT3906,SL322525MXXX,SM4001PL,FR107,SMDJ5.0CA,BTA06-600,BZT52B51BS,SLPESD0402M18,SL17010BT,SL322530MXXX,SLPESD0402M16,WE12DF-B,SLPESD0402M12,SL15T65FL,MM5Z75,SMDJ5.0A,SL80N10,DB201S,SL54MXXXX,S1A,S5AC,SL12010B,S5AB,2SD1624,SL6206-XXMR,SMCJ5.0CA,S1M,B772,KBL6005,SMBJ170A,MMBT2222A,AMS1117-XX,SL75XX,DB101S,SL322524MXXX,GBP2005,S2A,BT138-600,2SC1815,SL10N10A,SLESD9B3.3S,SL4813A,S2M,SL002P02K,SL50N120A,SL9435A,SL4184,S10AC,SL80N65CT,1SMA4728A,RS5MB,BC857B,SLESD5Z15V,SL6508B,SL4264-2,ZMM200,MMDT2227,SL1625SL,SM08C,SL252030MXXX,SL20N10,GBU4005,SD03C,SD15C,SL1625SH,BC856B,BTA10-800,SL1625TL,SL306X,GBP210,BT169D,SL4284,SL4041,SL1625TH,SL1613SH,ABS2,BTA26-800,SS510B,ABS10,1N4001W,SS510C,SL6506B,S3AC,S3AB,KBP4005,2SC1623,2SC2712,SF1001DS,ES1JF,2SD1781,1SS226,BZT52B43,SL1613TL,SL305X,SS52F,SL1002B,BTA41-800,SD05C,SL4275,SL1613TH,SS52B,SS52C,S10MC,SS525,BT138-800,SLESD2401QC,2SD1898,BZT52C2V4S,SL2333A,SL100N03,DSK220,SL40N60CF,D882,ES2JF,GBP310,SL3N06,SL304X,SLM511,SL10P04S,SL49SM24M20P-20,BT139-600,1SS355,SL4N65F,S2AF,SL503212MXXX,SL3401S,1N4148W,S2AB,C1815,BTA04-600,ABS210,MMBT3904,ES2JB,KBP2005,MMBT3906,SL9945,MAC97A8,SL78XX,SL1623SL,ABS201,SL303X,MAC97A6,BAV99,SL17025BT,SLM501,SL2192,SLPESD0201M24,KBP210,BZT52B3V0BS,SL1623SH,RS1AF,BTA41-1200,SLESD5Z12V,MB1F,SL4407A,1SS181,BC848B,78MXX,SM15C,SS510BF,GBP410,SM03C,MB1S,SL-10XX,SL302X,LL4148,SLM611,SLPESD3V3L1BA,SLESD5Z2V5,SMAJ5.0A,MMBTA05,SL1623TH,MMBTA06,SL20T65FH,SL14N120A,SL1623TL,BT131-600,BC847B,SLPESD12VL1BA,2SC2873,DSK310,SL40T65FL,ES3JC,S8050,ES3JB,BAV70,MMBT2907,MCR100-8,BCX51,BSN20,MMBD4148,BCX53,SL301X,BCX52,BCX55,SLM601,SM18C,SLESD5B5CU,BCX54,SLM600,SL322516MXXX,BAV20W,BCX56,KBP310,SL7603PXXXX,SL2302M,SLESD8H5.0CT5G,IRF640,SL6800C,SL7N65CN,SD12C,SLESD8D5.0C,S9013,SD24C,S9014,S9015,BC846B,SL10N06A,S9012,BT139-800,SL7N65CF,KBP3005,SL7N65CD,MCR100-6,BZT52C2V4,SL7N65CI,SM05C,2N3904,SL3139,SS8550,SMAJ170CA,US1MF,BAV21W,SL8820,S9018,2N3906,SD36C,MM3Z75,BZT52C43S,BTB10-600,MMBTA55,SLW611,RS1MF,SL3134K,SS110,SS32BF,SL11N65CD,1N4007W,SL11N65CF,SL6512B,SL252012MXXX,SL8052A,SL1629SH,MM1W3V3,SL1629SL,KBP410,SL20162712MXXX,SLPESD5V0L1BA,SS22B,1N4148WS,SL60T65FL,1N4148WT,DSK32,SS22F,MMBTA56,SLW601,SM4007PL,MMBTA44,SL6540BT,MMBTA42,SL49SM6M20P-20,SL252040MXXX,SL36N120A,SL12040BT,SL201626MXXX,SL50N06D,SL1629TH,SL50328MXXX,SL827,BT151,BT152,SL1629TL,SL49SM8M20P-20,SL49SM27M20P-20,SL826,DSK22,SL11N65CQ,SL49SM12M20P-20,SL49SM16M20P-20,S6MC,SL49SM10M20P-20,2N7002,M1F,SLPESD0201M05,MMBT6517,SL322540MXXX,GBLC08CI,2SC5824,ES1K,2SC4617,GBU610,SL6510B,BZT52B2V4,SL12N65F,SL1605SH,ULN2001,SL1605SL,MM1W330,BSS84,BZX84C2V4,DSK12,MM3Z2V0,SL9193MXXXX,BAW56,SL21N65CF,ES1AF,SLPESD0201M03,SL25T120FL,BTA24-800,ULN2003,ES2A,SS12F,6N137,SL15N65CD,6N136,SL15N65CF,LM2575,6N135,LM2576,SMAJ170A,SMDJ170CA,SL851,SL252027MXXX,S5MB,SL1605TL,SL503216MXXX,通讯设备,机器人,HIGH-END EQUIPMENTS,ELECTRIC VEHICLES,锂电池保护,电子烟,车联网,太阳能光伏,SMART HOME APPLIANCES,电动工具,通讯电力设备,IOT,IOV,大功率开关电源,手提电脑,太阳能光伏系统,航天领域,智能扫地机器人,不间断电源,智能手机,ELECTRIC POWER TOOLS,军事,物联网,3C数码产品,LAPTOPS,高端设备,智慧家电,能源互联网领域,医疗设备,充电桩,新能源汽车,SMART PHONES,清洁能源发电,INTELLIGENT ROBOTS,智能机器人,LED照明,LED LIGHTING,智慧家居,COMMUNICATION EQUIPMENTS,MEDICAL EQUIPMENTS,3C DIGITAL PRODUCTS,高端装备,笔记本电脑,SOLAR PHOTOVOLTAIC SYSTEMS,电动车辆
盘一盘电源电路中的那些EMI/EMC辅助器件
选择合适的组件来预防电路中的EMI和EMC问题并非难事,但有许多细节需要考虑。通常最终选择的器件和参数都是在权衡性能、成本、尺寸和可靠性之后的折衷选项。本文介绍电源电路中的那些辅助器件。
【技术】磁环在EMC中的作用及影响磁环抑制噪声效果的五大因素!
在电子产品的设计中,电磁兼容EMC性能对系统的影响非常大,关系到其能正常稳定运转。在整改过程中我们有时候经常采用到磁环来排查问题,但是使用过程中我们不知道哪些细节会影响使用的效果。本文介绍磁环在EMC中的作用及影响磁环抑制噪声效果的五大因素!
【选型】韬略科技(TOP-FLIGHT)展频IC、叠层共模/绕线共模/大电流共模/BDL滤波器、ESD、高分子材料、TVS、晶体闸流管、一体成型功率电感选型指南
公司简介 时钟展频IC BDL EMI 滤波器 大电流共模滤波器 EMI+ESD 复合器件 叠层共模滤波器/绕线共模滤波器 大功率TVS 高分子聚合物静电抑制器 先进陶瓷静电抑制器 TVS管/晶体闸流管 一体成型功率电感和EMC测试项目 各国电子产品认证要求
韬略科技 - EMI+ESD 复合器件,POLYMER ESD SUPPRESSOR,先进陶瓷ESD,大电流共模滤波器,聚合物ESD抑制器,先进陶瓷静电抑制器,一体成型功率电感,大功率TVS,瞬态二极管,叠层共模滤波器,晶体闸流管,时钟展频IC,EMI+ESD复合器件,BDL EMI 滤波器,TVS管,高分子聚合物静电抑制器,TEPC0R2V05B1X,0.2KP-SMF,TLDCM7035-2-501TF,TMMPL111004,TF2010A4X SERIES,5KP-SMC,TESC3R0V05B1X,TF0806A2X430MT,TLCML2012-2-121,TEVD12R0V24B1X,TSSBXXXB1X,TEVC1R0V05B1X,TESD500R0V05B1X,3128,TEVA0R4V05D4X,TLDCM1513-2-301TF,TESB3R0V24B1X,1108,TSSCXXXB1X,TF2010A4X,5KP-SMC SERIES,TSMAXXXB1X SERIES,TF2010A4X900MT,0.4KP-SMA SERIES,TEVD300R0V05D1X,TLCML2012-2-900,6.6KP SERIES,TF2010A4X121MT,10KP SERIES,TEPC0R2V12B1X,TEVC3R0V05B1X,5KP,TEVC25R0V05B1X,TSSDXXXB1X SERIES,TSSBXXXB1X SERIES,TEVG15R0V24B2X,TF2010A4X201MT,TEVC10R0V3B1X,TF0806A2X670MT,TEPB0R2V05B1X,TESC0R15V05B1,6.6KP,TEF0806A2X900MT,TF0806A2X900MT,TF1210A2X900MT,TF2010A4X670MT,TEF1210A2X900MT,TEPB0R2V12B1X,TEPC0R2V09B1X,2501,TEF2012A4X101MT,TEVB20R0V12B1X,TF0806A2X,TEVD0R6V05B1X,TLCML2012-2-201,8KP,15KP SERIES,15KP,TEVH0R6V05D2X,TEVJ0R4V05D4X,TMMPI040402,TMMPL131205,TESC3R0V24B1X,0.2KP-SMF SERIES,TF1210A2X650MT,TSSDXXXB1X,TEF1210A2X500MT,0.4KP-SMA,TSMAXXXB1X,0.6KP-SMB SERIES,TEVG0R6V05D2X,5228,TF0806A2X SERIES,1.5KP-SMC SERIES,TLDCM4745-2-102TF,TEVB10R0V3B1X,1.5KP-SMC,TEVB25R0V05B1X,5KP SERIES,8KP SERIES,10KP,TESD400R0V14B1X,TEVD22R0V15B1X,TEPC0R05V24B1X,TMMPI050502,TEVD0R7V05D4X,TEPB0R2V09B1X,TEVB0R5V05B1X,TGMPL020201,TLCML2012-2-371,TEVP0R4V05D2X,TF2010A4X161MT,0.6KP-SMB,TEVB3R0V05B1X,TLCML4532-2-601,TEVD0R6V3B1X,TSSCXXXB1X SERIES,TEVD1R5V05B1X,TGMPI020101,TLDCM1211-2-701TF,TLCML4532-2-282,TEVC15R0V12D1X,TEF1210A2X350MT,TF1210A2X350MT,TESB3R0V05B1X,TMMPI070603,AUTOMOTIVE MULTIMEDIA,TVI,AMPLIFIER FILTER & DECOUPLING,电视盒,DC/DC转换器,STAND-ALONE WORD PROCESSORS,等离子体显示器,其他电脑及周边设备,摄像机,MP3播放器,智能锁,适配器噪声抵消,UNIFIED DISPLAY INTERFACE (UDI),DVD 播放器,智能楼宇对讲系统,放大器滤波,通信,数字电路产品,SDI前端产品,EMC I/O筛选,FPGA/ASIC解耦,汽车多媒体,直流电动机,USB2.0,车载DVR,NOTEBOOK PCS,EMC IO过滤,CVI,服务器,GIGABIT ETHERNET,机顶盒,HIGH SPEED DATA FILTERING,智能仪表,手机,CAR-DVR,DDR存储器,智能安防,个人计算机,移动显示数字接口(MDDI),显示端口接口(DP),USB2.0和USB3.1,CAN总线,DVD播放器,笔记本,电脑周边设备,COMPUTER,电池供电设备,DVD PLAYER,液晶显示器,液晶电视,FPGA/ASIC DECOUPLING,EMC I/O FILTERING,USB,HIGH DEFINITION MULTI-MEDIA INTERFACE (HDMI),DC MOTOR,平板电脑,电脑,车载显示器,FPGA/ASIC去耦,MDDI,手机天线,笔记本电脑,汽车电子,信号线,扩展坞系统,AUDIO PLAYER,汽车,汽车仪表盘,统一显示接口,音频播放器,直流电机,DP,TELECOMMUNICATION,UD,交换机,笔记型电脑,DDR MEMORY,DV,投影仪,车载导航影音系统,DSC,高清同轴传输,硬盘录像机,RS232,RJ45,小型数字AV设备,IEEE1394接口,智慧医疗,电池线噪声抵消,LCD TV,独立文字处理器,移动电话,高速数据滤波,MIPI,MOSFET,数字视频接口,MOBILE PHONE,远程通信,I/O端口,消费类电子,HDMI,台式机,AUTOMOTIVE,千兆以太网,去耦,安防,消费电子,TV-BOX,放大器滤波器和去耦,数字视频接口(DVI),前端端口,高清多媒体接口,等离子面板,智能手机,IEEE1394 INTERFACE,GPS天线,NOTEBOOK COMPUTERS,PDP,工业,DISPLAY PORT INTERFACE (DP),电子设备电源线噪声抑制,DIGITAL VISUAL INTERFACE (DVI),统一显示接口(UDI),车载视频监控,高速接口,LED户外显示屏,集成电路,USB3.0,传感器信号线,USB3.1,MOBILE DISPLAY DIGITAL INTERFACE (MDDI),LED照明,车载智能调度系统,INDUSTRIAL,USB2.0 AND USB3.1,高清晰度多媒体接口(HDMI),USB线,PC,LVDS线路,DVI,行车记录仪,移动显示数字接口,RS485,显示端口接口,AHD,无人飞机
TEVB0R3V05B1X静电放电抑制器
本资料详细介绍了TEVB0R3V05B1X型号的ESD抑制器的特性、电气参数、机械数据、封装信息以及焊接参数。资料涵盖了产品的性能特点、工作温度范围、电气特性、典型性能参数、封装尺寸和焊接条件等详细信息。
韬略科技 - ESD SUPPRESSOR,ESD抑制器,TEVB0R3V05B1X
优恩半导体(UNSEMI)ESD静电保护/雷击浪涌保护器件/串口芯片产品选型指南(中文)
企业简介和产品概览 静电保护器(ESD) 瞬态抑制二极管(TVS) 半导体放电管(TSS) 双向触发二极管(SIDAC) 压敏电阻(MOV) 陶瓷气体放电管(GDT) 玻璃气体放电管(SPG) 微型防雷模组(MLPM) 自恢复保险丝(PPTC) RS485/422收发器 CAN收发器 网口RJ45连接器 分立功率器件 EMI保护元器件
优恩半导体 - 共模滤波器/扼流圈,RS485/422 收发器,小信号肖特基二级管,RS232 总线收发器,瞬态抑制二极管,SPG,陶瓷气体放电管,TVS,分立功率器件,CAN 总线收发器,GDT,自恢复保险丝,绕线熔断保险电阻,CMF,玻璃气体放电管,CHIP VARISTOR,静电放电,稳压二极管,静电保护器,贴片压敏电阻,移动电话,CAN收发器,磁珠,小信号开关二极管,三端稳压器,TSS,运动类游戏,功率场效应管,熔断保险丝,开关点火放电管,触发管,PPTC,RS232总线收发器,压敏电阻,双向触发二极管,双极型晶体管,RS485 防雷模组,高压整流二极管,ESD,微型防雷模组,半导体放电管,小信号肖特基二极管,静噪滤波器,片式压敏电阻器,ESD 静电保护器,SIDAC,网口RJ45连接器,高速积层共模滤波器,网口 RJ45 连接器,EMI 保护元器件,CAN总线收发器,收发器,MOS,CAN 收发器,固态放电管,金属氧化物半导体,RS485/422收发器,MOV,线性稳压器,避雷管,MLPM,玻璃放电管,RS485 通讯芯片,SMDJ-AT SERIES,07DXXKJ,UN2E8-XXXML SERIES,SMBJ,UN2E5-XXXLL SERIES,UN232,UN2E8-XXXL HV,4.0SMF SERIES,UN1812-XXXCSMD SERIES,10DXXKJ,5.0SMDJ-AT SERIES,P6KE SERIES,30KP SERIES,SACB SERIES,UNS1K SERIES,PXXXSC SERIES,P4KE,SMD0603 SERIES,10DXXKEC SERIES,UN490E,UN3E8-XXXHP,UNSDC12V-3L,07DXXK,07DXXL,UN3E5-XXXMSMD,PXXXSB,15KPS,PXXXSA,PXXXSB-2L,P4SMA SERIES,SA SERIES,SMAJ,UN2220 SERIES,05DXXKJ,SAC SERIES,SMF SERIES,PXXXSC,KXXXSA SERIES,20KP,5.0SMDJ SERIES,0402 SERIES,20KP SERIES,TPSMAJ SERIES,PXXXLB SERIES,SMCJ SERIES,UN3490,P4SMA,UNSDC24V-3L,SMDJ,UNS1K,UN3E6-XXXMM,UN65HVD75,UN2E8-XXXL HV SERIES,SMDT,UN1812 SERIES,UN3220 SERIES,SA,UN2E8-XXXML,UNS4032 SERIES,UN2E8-XXXHL SERIES,UN2E5-XXXL HV,UNSDC58V-2L,SMD1210 SERIES,UN2E5-XXXLSMD,PXXXEC SERIES,UN3485,UN16,5KP,1.5KE SERIES,TP5.0SMDJ,14DXXL SERIES,07DXXKBC SERIES,MCM系列,UNS2K,UN2E8-XXXMSMD,UN2E5-XXXLL HV SERIES,10DXXKEC,UNSDC24V-2L,32DXXL SERIES,UN3E8-XXXHM SERIES,SMCJ,TPSMB SERIES,UN1210-XXXBSMD SERIES,UN3E6-XXXM,TPSMDJ SERIES,UN65HVD233,UN65HVD234,100M,UN65HVD232,UN65HVD230,SMBJ-AT,UN2E5-XXXL,UN2E8-XXXM,UN1210-XXXBSMD,34SXX,KC SERIES,UN2E6-XXXLSMD SERIES,UN2E8-XXXH,UNB-XXXN-SMD,UN3E8-XXXHMF,32DXXKJ SERIES,UN1050,UN3232E,UN1050ISODUB,32DXXKJ,40DXXK,UNS3220,UNB-XXXN/M,40DXXL,UN3085NE,SMCJS,UN2E8-XXXHSMD,HCM系列,TPSMB10J,32DXXK,32DXXL,PXXXEC,UN30,PXXXEB,KXXXSB,PXXXEA,30KP,KXXXSA,P6SMB SERIES,1012,KXXXSD1,PXXXSC-2L SERIES,15KP,PXXXSC-2L,0603,SMD2920 SERIES,10SMBT,14DXXKJ,UN82C250,UNSRS485-2HL,UN82C251,10SMBJ,25DXXL SERIES,05DXXL SERIES,TPSMC SERIES,UN2H8-XXXL HV SERIES,UNSDC58V-3L,SM8Z SERIES,TPSMCJ SERIES,SM5Z,UN6,UN3E5-XXXL,UN3088E,KXXXG SERIES,PXXXTB,PXXXTA,KXXXG,UN2E5-XXXLSMD SERIES,KA SERIES,UNB-XXXN-SMD SERIES,2012,UN3088ES,07DXXL SERIES,5KP SERIES,UN3485ISO,8KP SERIES,PXXXEA SERIES,UNA-XXXN/M SERIES,SMCJS SERIES,3KP,SM8Z,UN3E5-XXXLM,SMCJ-AT SERIES,LCE SERIES,UNC-XXXN/M SERIES,UN3E8-XXXHM,PXXXSA SERIES,UNSRS485-2H,SMCJ-AT,UN0805 SERIES,PXXXDM,POE58C,15SMBJ,PXXXTB SERIES,PXXXSB-2L SERIES,UNA-XXXN-SMD,40DXXKJ SERIES,UNS3220 SERIES,UN1206 SERIES,P4KE SERIES,SM5Z SERIES,UN2E8-XXXMSMD SERIES,UN3E6-XXXMM SERIES,05DXXK,05DXXL,UN600 SERIES,1012 SERIES,UNB-XXXN/M SERIES,8.0SMDJ,UNSRS485-2L,P6SMB,SACA SERIES,40DXXKJ,1000M,40DXXL SERIES,PXXXDM SERIES,SACA,UN0603 SERIES,SACB,UN2E5-XXXL SERIES,UN2H8-XXXLL HV SERIES,SMD2920,0402,8.0SMDJ SERIES,25DXXL,25DXXK,UN30 SERIES,10DXXL SERIES,25DXXKJ,20DXXL SERIES,5KPS,UNA-XXXN-SMD SERIES,UN485E,UN2E8-XXXHL,PXXXSB SERIES,UN485ES,PXXXTA SERIES,UN3E8-XXXHMF SERIES,UN2H8-XXXLL HV,SMDJ-AT,4.0SMF,SMF,TPSMB10J SERIES,0603 SERIES,5KPS SERIES,UN2E8-XXXH SERIES,KD SERIES,UN60,SMAJ-AT SERIES,TPSMDJ,UN1206-XXXASMD SERIES,UN2E8-XXXHSMD SERIES,UN3232E-T,UN1210 SERIES,14DXXKSC,07DXXKBC,10DXXK,UNSDC48V-2L,10DXXL,53DXXK,UN3E8-XXXHSMD SERIES,2012 SERIES,UN0805,UN3E5-XXXMSMD SERIES,KA,KB,UN1812-XXXCSMD,KC,TPSMCJ,UN2E8-XXXLL HV,6.0SMAJ SERIES,KD,14DXXKSC SERIES,UNS2K SERIES,10SMBJ SERIES,TP5.0SMDJ SERIES,SMD1812 SERIES,UN60 SERIES,5.0SMDJ,UN3490E,UNSDC48V-3L,20DXXKYC SERIES,SMD0603,SMD1812,KXXXSB SERIES,UN1206,UN16 SERIES,SMBJ SERIES,UNSRS422-2H,SMDT SERIES,UN1210,UNSRS422-2L,UN135 SERIES,TPSMBJ,PXXXLC SERIES,UNS4032,UNA-XXXN/M,0201 SERIES,UN1206-XXXASMD,UN2H8-XXXL HV,5.0SMDJ-AT,UN3E5-XXXL SERIES,UNC-XXXN/M,20DXXKYC,UN3485S,UN3E6-XXXM SERIES,34SXX SERIES,UN2E5-XXXLL,0201,UN3E8-XXXHP SERIES,UN3E8-XXXH SERIES,UN1042,UN3220,TPSMAJ,UN1040,UN2E8-XXXLL HV SERIES,15KP SERIES,8KP,UN2E5-XXXL HV SERIES,UN2E6-XXXLSMD,6.0SMAJ,UN3E8-XXXHSMD,34SXXJ SERIES,SMD1206 SERIES,SMBJ-AT SERIES,TPSMA SERIES,LCE,UN600,14DXXK,UN6 SERIES,14DXXL,UNC-XXXN-SMD SERIES,UNSRS422-2HL,15SMBJ SERIES,SAC,SMD0805 SERIES,SMAJ SERIES,UN3E5-XXXLM SERIES,UN3E5-XXXLSMD SERIES,UN250 SERIES,UN3E8-XXXH,UN485CUA,UN488E,UN250,KB SERIES,PXXXLC,UN2E5-XXXLL HV,UN135,PXXXLB,PXXXLA,SMD1206,UN0603,UN1812,20DXXL,20DXXK,PXXXEB SERIES,10SMBT SERIES,1.5KE,UNC-XXXN-SMD,3KP SERIES,P6KE,KXXXSD1 SERIES,TPSMC,SMD0805,TPSMB,TPSMA6J SERIES,TPSMA,TPSMBJ SERIES,34SXXJ,20DXXKJ,SMD1210,SMDJ SERIES,UN2220,UN2E8-XXXM SERIES,TPSMA6J,UNSDC12V-2L,1.5SMC SERIES,15KPS SERIES,SMAJ-AT,PXXXLA SERIES,UN3E5-XXXLSMD,日光灯启动,汽车,GPS,DP,T1/E1 信号,安防摄像头,通信,RS232,物联网,安防监控,ADSL,TYPE-C,安防摄像头设备,热水器点火,通信安防,低频信号,消费电子产品,手持设备,VDSL,CAN,MIPI,VGA,消费类电子产品,电动马达,家电,太阳能,SIM,医疗,ETHERNET,HDMI,LVDS,串口服务器,IT 通讯产品,消费,芯片电源 VCC 接口,安防,通讯,汞灯触发,燃气灶具点火,空调,消费电子,消费类,智能 TV,车用电子,仪器仪表,SPD 防雷器,I2C,冰箱电子杀菌除臭,通讯信号,高速差分信号线路,工业控制,USB,工业级产品,智慧楼宇,消费类产品,工控,智慧物联,消费数码,GPIO,SPD防雷器,IT通讯产品,家用电器,SD 卡,电源,DVI,ANTENNA 信号,医疗类,ETHERNET(RJ45),RS485,电源端口,钠灯触发,智能TV,汽车电子,POWER,高压灯触发
【技术】新型EMI器件BDL滤波器,解决电源EMI问题的革命性技术
韬略科技推出的用于解决传导骚扰的新技术产品:BDL(Balanced Dual-Line EMI Filter)平衡双线滤波器,即BDL滤波器,是一款新型EMI器件,引进源自MIT的军工黑科技,BDL滤波器具有优于常规滤波器件(共模电感,磁珠等)的插损曲线,使其有能力用来替代常规滤波器件或滤波网络(RC,LC,π型)。
方成电子授权世强硬创代理电感器/电流互感器等磁性元件产品
产品包括电感器、电流互感器、平面变压器、共模电感、贴片大电流电感以及功率电感等。
电子商城
现货市场
服务
可定制电感可承受4.5KV高压,可适配于30MHz高频应用;支持平共模电感、谐振电感、PFC电感、大电流直流电感等产品电压/频率等参数性能定制;通过AECQ-200认证。
最小起订量: 100000 提交需求>
可定制共模扼流圈、DIP功率扼流圈、大电流扼流圈、环形扼流圈/线圈等产品,耐温范围-40℃~125℃,电感量最高1200mH。
最小起订量: 1 提交需求>
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