医疗产品USB TYPE-B端口传输的静电问题案例分析

时间： 2024-08-23 来源：韬略科技EMC公众号

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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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目录- 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

型号- 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,

2022/10/9 - SLKOR - 选型指南代理服务技术支持现货查询批量订货

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。

2024-11-29 - 签约新闻代理服务技术支持现货查询批量订货

【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

目录- 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

型号- 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

韬略科技 - 选型指南代理服务技术支持现货查询批量订货

【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！

2023-04-19 - 技术探讨代理服务技术支持现货查询批量订货

音特电子（Yint Electronics）电路保护元器件选型指南

目录- 公司简介瞬态抑制二极管静电保护器件半导体放电管气体放电管压敏电阻自恢复保险丝热敏电阻肖特基二极管整流二极管高压二极管稳压二极管场效应管霍尔传感器热保护器共模滤波器低压差线性稳压器

型号- 30V-050,YAZ1P5D47,25D301K,SMAJ6.0CA,SMAJ40CA,ESDLC24VD8B,3R075L-8X10,HLT9P04C,HLS150N30K,YAZ1P5D51,5.0SMDJ170A,P8SMB120CA,16V-110,15KP58A,SMD1206-351,YAZ1P5D3V3,ESDLC15VD3B,YAZ1P5D3V6,RS3BBF,YAZ1P5D56,5D361KJ,HLS135N100,P8SMB13CA,YAZ1P5D3V9,HLS80R1K5,SMDJ78CA,HLP9N90,ES2JBF,ESDLC8V0D3B,S2MB,1812 SERIES,PGB0603-05,YC2M2012B121GBE,YAZ1P5D62,Y1ZP35D43G,HLS80R1K1,10D560KJ,SMCJ14CA,5D121KJ,P8SMB60A,S2MF,YAZ1P5D68,HLT30P55,HLS70N40K,HLP9N80,30V-075,5.0SMDJ85A,PGB0603-12,SMCJ100CA,SMBJ300A,YAZ1P5D75,5KP30A,HLS55N100PF5,SMF120CA,SMBJ150CA,16V-135,SMDJ170A,SMAJ70A,33D-7,250V SERIES,HLP9N70,33D-5,PGB0603-24,HLT9P03C,SMDJ58A,33D-9,HLG3401A1N,32D122K,SA48CA,SMCJ30A,YAZ1P5D82,ESD12VAP,HLP2P06C,10D-11,HLP14N80,SA180A,10D-13,10D-15,15KP54A,20D781KH,20D781KJ,15KP120CA,YAZ1P5D91,SA22CA,P6KE8.2CA,SMAJ100A,16V-160,5.0SMDJ170CA,SA110CA,HLS60200K,ESD12VD3,HLT30P10,SMDJ54A,10D680KJ,SMD1210-150-6V,SMDJ160CA,3KP14CA,SMBJ400CA,5KP SERIES,SMF36CA,ESD24VAP,ESD12VD8,ESD12VD5,7D220KJ,P6SMB51CA,ESD12VD9,10D K SERIES,HLT30P06,1.0SMB22CA,SMCJ220CA,32D561K,2R230S-6X4.2,HLT30P03,HLS187N80,5D241KJ,SMD1206-075-16V,SMD2920-200-16V,1.5KE51A,7D781K,HLS170N30PF5,P6SMB,HLS60R580,SA70CA,1.5KE36CA,5D121K,LC SERIES,DA SERIES,5KP36A,P6SMB16A,SMAJ18CA,SM8,SA17CA,1.5KE170CA,SMD1812-351,25D122K,5KP90CA,S SERIES,P0080TA,SMF,SMDJ51A,3KP45CA,P6SMB15A,ESD3V0J4,3R230S-6X8,3KP58CA,HLP38N30,10D471KH,25D561K,1.5KE56A,ESD8V0D5B,US2B,US2A,10D471KJ,US2K,HLS12N100C,US2J,30V-900,US2G,SA5.0CA,US2D,HLP4P20,RS2AB,20D911KH,YAZ1P5D XXX,HLR08U02,20D911KJ,RS2AF,5KP24CA,US2M,P6SMB16CA,HLP110P06,SMBJ90A,10D-20,SMF64A,US1B,US1A,SMBJ12CA,2R***L-5.5X6 SERIES,US1J,P6SMB13A,US1G,US1D,US1M,ESDLC24VD3B,US1K,SMBJ5.0A,HLT6N06,30V-090,SMD2920-100-33V,ESD8V0D3B,HLS20100N2,5D561K,1.0SMB6.8A,Y1ZD9V1,HLS120R800,P6SMB12A,YC2M2012B,20D220K,P8SMB75CA,YAZ1P5D10,32D911K,YAZ1P5D16,YAZ1P5D15,YAZ1P5D18,YAZ1P5D12,YAZ1P5D11,P6KE180CA,YAZ1P5D13,Y3ZP2D5V6,Y5ZP2D XXX,P6SMB10A,P6SMB11A,HLR75S12,Y3ZP2D5V1,MF58-203F-3950,25D SERIES,P8SMB64A,YAZ1P5D20,HLP75N08,P6SMB100CA,YAZ1P5D27,5.0SMDJ78CA,SMD0603-003-30V,YAZ1P5D22,20D,YAZ1P5D24,Y3ZP2DXXX,10D101K,1.5KE10CA,YAZ1P5D30,7D471K,YAZ1P5D39,SMF60A,YAZ1P5D33,25D431K,YAZ1P5D36,5D820KJ,5D560K,P6KE27CA,5KP33A,P6SMB82CA,10D102K,14D911K,20D221K,YAZ1P5D43,7D470K,5KP11CA,HLR12U12,YAZ2D8V2,20D470KJ,P6SMB47CA,RS2GB,20D K系列,HLT60N03,HLT60N02,HLS60150K,MF52A-104F-3950,1.5KE540A,HLT60N08,RS2GF,HLT60N04,SMDJ200CA,HLT60N06,16V-1000,SMF70A,SMDJ190CA,3KP64A,HLR12U06,HLR12U04,HLR12U02,10D112K,SMAJ48CA,SMBJ43CA,10D680K,HLT60N10,14D561K,1.0SMB9.1A,HLS247N120Q,1N4001W,S3AF,S3AC,SMCJ7.5A,SMAJ400A,S3AB,600V-110,60V-300,SMF19CA,ES3DBF,SA90A,34S471K,10D241K,SMD1206-075-6V,SMBJ18A,MF52A-303J-4200,HLP840,14D431K,HLT4P06,P8SMB SERIES,25D,1N4002W,MF52A-104H-4100,SMAJ300CA,P6KE220CA,SA40CA,25D911K,HLP830,YC2M2012B161GBE,1N4003W,3KP9.0CA,1.5KE510CA,SMD1812-421,MF52A-302J-3950,HLT5N04A1N,SMD1210-035-16V,Y3ZP2D18,14D681KH,P6KE100CA,2R300S-8X6,SMBJ16A,MF52A-103F-3380,HLS145NH80PF5,14D KJ 系列,Y5ZP2D XXX SERIES,SMBJ30CA,P6SMB SERIES,5KP28A,14D681KJ,S3DB,Y3ZP2D10,S3DC,Y3ZP2D12,HL78MXX,Y3ZP2D11,Y3ZP2D14,Y3ZP2D13,Y3ZP2D16,0603,Y3ZP2D15,YAZ1DXXX SERIES,14D112KJ,S3BF,HLT4P10,1N4004W,SMF110A,S3BB,S3BC,SMD1210-200-6V,60V-375,SMAJ8.5CA,SMAJ180A,HLP12P06,SMBJ17A,SMF85CA,RS2BB,SMBJ120CA,14D121K,14D112KH,RS2BF,14D561KJ,5KP8.0A,1N4005W,14D561KH,5KP250A,3KP75CA,SMD1812-401,Y3ZP2D39,SMBJ14A,HLR24U12,P6SMB18A,7D621KH,SMDJ16CA,7D621KJ,14D560K,600V-160,Y3ZP2D33,Y3ZP2D36,SMBJ130A,S3DF,RS2DB,1N4006W,ES2ABF,Y3ZP2D30,RS3KBF,5KP120CA,SA100A,SMBJ15A,SMAJ170CA,2R400L-8X6,RS2DF,Y3ZP2D20,Y3ZP2D22,600V-150,Y3ZP2D24,Y3ZP2D27,Y1ZP35D7V5G,YC2M 2012B SERIES,100D-9,1N4007W,YAZ1D6V2,ESD24VD8,HLP9N20,SMBJ12A,SMAJ6.0A,ESD24VD3,P6KE62CA,ESD24VD5,YAZ1D6V8,20D511KH,20D511KJ,SA7.5CA,ESD36VD3,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,HLG2301BA1N,5.0SMDJ48CA,Y5ZP2D3V9,Y5ZP2D3V3,ES5JC,Y5ZP2D3V6,SMBJ13A,15KP51A,Y5ZP2D3V0,S3GF,P6KE75A,S3GC,S3GB,10D201KJ,SMCJ150A,30V-110,HLS18N200K,SMD1812-200-16V,3R075L-6X8,SA6.0A,S3JF,5KP8.5A,SMAJ78A,S3JB,YAZ2D110,S3JC,ESDSMDA15C,HLP14N10,ESD36VAP,US3ABF,5KP120A,30V-120,SMBJ10A,SMD1210-075-6V,SMBJ11A,SMAJ22CA,7D180KJ,5D330KJ,SMCJ6.5CA,HLS2045N2,2R***S-8X6,YAZ2D100,SMAJ75A,SMCJ36A,RS2KB,SMDJ210A,SA190CA,15KP75CA,RS2KF,7D K SERIES,5.0SMDJ75A,P0300DA,ES5GC,SMF54CA,YAZ2D130,1.5KE100A,3R600L-6X8,P6SMB170A,HLS16N100C,SMCJ45CA,3KP60A,US5GBF,RS2JB,15KP240CA,HLT40P03PF5,RS2JF,HLT40P03PF4,P6KE75CA,S3KB,HLT9P01C,YAZ2D120,S3KF,S3KC,SMAJ6.5A,SMBJ440A,Y1ZP35D47G,RS2MF,7D K,SMCJ58CA,HLT20N10,HLS20150K,SMDJ7.5CA,SMD1206-301,RS2MB,MF52□□□4300,5.0SMDJ17CA,1.5KE18CA,ESD3V3APB,14D201KJ,3R200S-5X7.6,5KP60CA,HLT15N03C,5.0SMDJ70CA,YAZ2D150,HLT20N06,HLS90N60PF5,SMCJ33A,7D K系列,HLT30ND03PF4,20D751KJ,20D751KH,SMD1206-050-24V,YC2M1012B121FBP,3R470L-6X8,L SERIES,20D K SERIES,S3MC,S3MB,ES5DC,HLT20N15,HLS250N80,YAZ2D140,14D301K,SA6.5A,S3MF,5.0SMDJ33CA,P0640S,SA36CA,SMBJ,HLS90N30PF5,SMDJ20CA,SMF6.0A,HLR30U03,HLS130N85,LB SERIES,HLR30U02,HLR30U04,3D-13,RS1G,HLR30U06,RS1D,7D681KJ,3D-11,ESDLC5V0D8B,RS1B,YAZ2D170,20D361K,SMD1210-020-30V,HLS8060K,RS1A,P8S

2021/10/18 - 音特电子 - 选型指南代理服务技术支持现货查询批量订货

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）

目录- 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

型号- 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

2021 - 优恩半导体 - 选型指南代理服务技术支持现货查询批量订货

【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）。