【选型】RS-485接口的防雷设计电路,该如何选择保护器件?

2017-06-21 百度文库(世强编辑整理)
气体放电管,PPTC,保护器件,TVS二极管 气体放电管,PPTC,保护器件,TVS二极管 气体放电管,PPTC,保护器件,TVS二极管 气体放电管,PPTC,保护器件,TVS二极管

RS-485接口带电拔插和抖动都会引起电压的剧烈变化,使芯片损坏。RS-485总线可实现长距离传输(1200米以上),其传输线通常暴露于户外,极易因为雷击等原因引入过电压。而RS-485收发器工作电压较低(5V左右),其本身耐压也非常低(-7V~+12V),一旦引入过压,就会被击穿损坏。在有强烈的浪涌能量出现时,甚至可能发生收发器爆裂、线路板焦糊的现象。

因此,设计时需对芯片以及总线进行有效的保护。在正常运行时,雷电保护器的接入应不影响信号的正常传输;雷电保护器的对地阻抗应非常大,串联在电路中的阻抗应非常小,在雷电袭击通信总线时,雷电保护器应发挥良好的电压钳位作用,其钳位电压应低于后端控制芯片或其它电器件的耐受电压水平;在抑制雷电袭击过程中,雷电保护器自身应完好无损,其对雷电袭击应具有足够快的响应速度。

图1为RS-485保护电路,其需要两级保护电路。当雷击发生时,感应过电压由两端引入,气体放电管做一级防护,此时过电压被大大削弱到数百伏左右,再经过PPTC限浪;通过TVS做二次限压,使到达后端电路的电压被箝制在8V左右,从而实现对后端电路的保护。下面分别介绍气体放电管、PPTC以及TVS的选择方法。


图1:RS-485保护电路


气体放电管的直流放电电压VDC,应高于信号线上传输的最高信号电压,而响应速度是选择放电管的另一个指标。在正常传输电压低于10V的信号线保护中,Uf为50V-100V的放电管,能泄放5kA~10kA的浪涌电流,本文推荐使用力特公司的气体放电管SH90。其采用方形表面安装式封装(5.0×5.0×4.2mm),占用空间极小;具备5kA(8/20μs)浪涌性能,符合IEC61000-4-5标准;断态电容值≤0.7pF,不会因信号电压变化而变化。


图2:放电管SH系列波形


PPTC的最大额定工作电压应大于电路正常最大工作电压。IH保持电流应大于最大工作电流,IT动作电流应小于线路的最大可承受电流。因此,可采用不动作电流为100~200mA的自恢复保险丝。本文推荐使用力特公司的nanoSMDC010F,其保持电流为0.1A,动作电流为0.25A,最大电压为60V,最大电流为10A,电阻为1.6Ω到15Ω,采用1206封装。其外形极其小巧,有利于节约电路板空间。




图3:nanoSMDC010F动作电流和时间关系图


TVS二级管的击穿电压VBR应高于信号线上传输的信号电压,在此前提下,VBR应尽可能选得低一些,较低的VBR可使后端通信芯片得到可靠的保护,而RS-485总线上的电压范围为-7V至+12V。力特专为RS-485的应用设计推出的具有非对称工作电压的保护器件SM712。SM712的低动态电阻(0.5ΩTYP)提供出色的箝位性能;它能吸收IEC61000-4-2国际标准规定之最高级别的反复性ESD放电,无需担心其性能发生减退;并可在极低的箝位电压下安全地耗散19A的8/20μs波形浪涌电流(IEC61000-4-5)。此外,SM712拥有75pF(最大)最低电容负载,且符合AEC-Q101标准。


图4:SM712内部结构


相关技术文档:

LITTELFUSE SM712系列二极管阵列 数据手册 详情>>>

Littelfuse SH气体放电管数据手册 详情>>>

Littelfuse nanoSMDC010F PTC过流保护器件 数据手册 详情>>>

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  • 用户68909777 Lv5. 技术专家 2018-11-11
    学习了
  • 明释 Lv5. 技术专家 2018-11-08
    学习
  • 用户20615711 Lv3. 高级工程师 2018-08-03
    收藏
  • 德高旺重 Lv9. 科学家 2017-12-08
    学习了
  • AMY Lv3. 高级工程师 2017-12-06
    收藏成功
  • zhangwy Lv4. 资深工程师 2017-12-02
    学习了
  • 大伟 Lv5. 技术专家 2017-12-01
    很赞,工业防护必须到位
  • NASA911 Lv8. 研究员 2017-11-25
    学习学习了
  • luosai Lv8. 研究员 2017-11-13
    学习下!
  • 全璞 Lv7. 资深专家 2017-11-04
    保护元件,性能强大。
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选型指南  -  LITTELFUSE  - v0420  - 0420 PDF 英文 下载

【选型】硕凯电子(Socay)电路保护器件(GDT/TVS/ESD/TSS/MOV/MLV/PPTC/SPG)选型指南

目录- 公司简介    GDT陶瓷气体放电管    TVS瞬态抑制二极管    ESD静电保护元件    TSS半导体放电管    MLV贴片压敏电阻    高分子ESD    MOV压敏电阻    SPG强效放电管    PPTC自恢复保险丝    贴片磁珠    贴片电感   

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SERIES,SC2E6-600LSMD,SC1812-420CSMD,P6SMB12A,TH8D20CA,SCF012-1206R,32D911K,P4SMA13A,SC2E6-420LSMD,P6KE180CA,P6SMB10A,SCGB2012S301HPF,SM6S15A,P4SMA47CA,SCML2012H2R2M05BP,P6SMB11A,KA-190,25D SERIES,P6SMB100CA,5.0SMDJ78CA,SC250-650,SCWL201610G-1R0ML,15KPA18CA,20D,P4KE400A,SCML2012H1R0MBE,SM6S18A,RCF160-1812,PXXXXTB SERIES,1.5KE10CA,SCF035-0805R,SCHB1608W241EPF,SC1206-90ASMD,34S850K/40,SMF60A,P4SMA15A,SCGB2012S102FPF,15KPA30A,SM6S17A,P6KE27CA,30KPA84A,SCB-141N,PXXXXEC,5KP33A,PXXXXEA,P6SMB82CA,PXXXXEB,15KPA180CA,SC2E8-150H,1.5SMC500CA,SC2E8-150M,5KP11CA,30KPA36CA,P4KE6.8CA,20KPA52CA,P6SMB47CA,1.5SMC250CA,SCHB1608-W SERIES,SCPB1005S100NPF,TH8S15A,SC3E5-75LSMD,P6SMB220CA,3KP140A,SC2E5-470L,SMDJ200CA,SMF70A,SMDJ190CA,15KPA24A,30KPA90A,1.5KE380CA,SC250-145T,3KP64A,P4KE20A,SMAJ48CA,SMBJ43CA,TPSMAJ SERIES,SCWL201610G-R47ML,53D SERIES,34S140K/40,SMCJ7.5A,SMAJ400A,SC1812-400CSMD+,30KPA71CA,SMF19CA,SA90A,30KPA102A,SMBJ18A,SCF035-1210R,1.5SMC75CA,25D,SMAJ300CA,P6KE220CA,SA40CA,SCF020-60-1812R,SCB-501M,15KPA22A,SC1812-350CSMD,TH8S16A,KA-170,SMBJ19A,SCGB3216S202ETF,20KPA96CA,SM6S20A,3KP9.0CA,S61089,SM6S,P6KE100CA,SMBJ16A,20KPA240CA,SMBJ30CA,P6SMB SERIES,SCWL252010H SERIES,5KP28A,SCGB1608H121EPF,30KPA108A,SMF110A,15KPA28A,SMAJ8.5CA,SC1210-420BSMD,SMAJ180A,P4KE100A,SC135-650,SCC-471M,SMBJ17A,SMF85CA,SMBJ120CA,5.0SMDJ220A,SM5S,SM8E,SM8S16CA,SM6S22A,20KPA120CA,5KP8.0A,1.5SMC10A,SC2E5-3500D,SC3E6-230M,3KP75CA,SMBJ14A,SM8S,P6SMB18A,SMDJ16CA,SCGB1608S221FPF,SMBJ130A,1.5SMC130CA,5.0SMDJ350A,SCPB1608S601LPF,15KPA26A,15KPA48CA,SMDJ440CA,34S350K/40,5KP120CA,SCGB1005S200FPF,SA100A,SMBJ15A,SCF125-2920R,SMAJ170CA,KA-133,SCWL252010G-R47ML,15KPA180A,30KPA260CA,SMBJ12A,SMAJ6.0A,P6KE62CA,SC3E8-150HP,SC250-1000S,TPSMEJ,SC3E8-150HM,1.5SMC91A,SA7.5CA,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,15KPA22CA,5.0SMDJ48CA,SMBJ13A,SCBE-471M,SC2E8-150MSMD,TPSMDJ,P6KE75A,P4SMA220A,KB-380,34S440K/65D,SMCJ150A,20KPA172A,SC1210-350BSMD,SC1812-90CSMD,TPSMCJ,SA6.0A,SCF200-1812R,5KP8.5A,SMAJ78A,KA-100,SC3E8-800HM,5KP120A,SC3E8-800HP,SMBJ10A,SMBJ11A,P4KE27A,5.0SMDJ400A,SMAJ22CA,SC3E5-350LM,TPSMBJ,SMCJ6.5CA,8.0SMDJ22CA,SMAJ75A,SMCJ36A,SA190CA,SCPB1005S121MPF,SM4KBF,5.0SMDJ75A,P4SMA9.1A,TH8S SERIES,SMF54CA,SC30-600,P4SMA91A,TPSMAJ,1.5KE100A,SC2E8-250MSMD,P6SMB170A,SMCJ45CA,3KP60A,30KPA84CA,SC3E5-470LM,P6KE75CA,TH8D28CA,P4KE24A,SCF030-1812R,SCPB3216S121WTF,SC16-600,SCA SERIES,SCGB1005S600FPF,SC3E5-150L,SMAJ6.5A,SMBJ440A,SMCJ58CA,SMDJ7.5CA,5.0SMDJ17CA,1.5KE18CA,5KP60CA,5.0SMDJ70CA,SMCJ33A,P4SMA350A,RCF260-1812R,SCGB3216S700KTF,SCF0805,P4KE22A,P4SMA6.8CA,10D SERIES,P4KE6.8A,SA6.5A,5.0SMDJ33CA,SA36CA,SMBJ,SMDJ20CA,SMF6.0A,P4SMA15CA,3KP6.0CA,SMDJ160A,3KP26CA,SCWL201610H-R47ML,SMAJ60A,SMAJ,SC2E8-75ML,5.0SMDJ70A,5.0SMDJ SERIES,SMF22CA,SMDJ48A,SMCJ7.0CA,SMCJ20A,P4KE36CA,SCF260-13-1812,P6KE200A,SMDJ,20KPA36CA,SC1206-470ASMD,SMBJ85A,1.5KE380A,P4KE120CA,P4SMA400CA,SCPB1608S600QPF,SC2K8-400SMD,SMF180A,SM8E43A,SMCJ,SM8S22CA,SMDJ33CA,SMDJ45A,1.5SMC8.2CA,SCC-401M,SMCJ13CA,SCB-201M,TH8S16CA,PXXXXSB SERIES,SMDJ64CA,3KP13CA,5KP180CA,SCWL252010G SERIES,1.5KE62A,20KPA26A,SCF020-0805R,20KPA104CA,PXXXXLA SERIES,SMCJ26CA,SA75A,TH8D,20KPA24A,TH8S,SMDJ43A,1.5SMC91CA,SCHB1608W601EPF,1.5SMC180CA,20KPA300CA,SCPB-S SERIES,1.5KE250A,SCF012-0603R,SA78A,53D361K,SMAJ85CA,P4SMA200A,SA190A,K1-076,1.5KE8.2A,2

选型指南  -  硕凯电子  - Ver Feb.2019  - Feb.2019 PDF 中文 下载

Littelfuse多种汽车电子保护器件,助力实现稳健的车载通信

本文介绍了多种汽车电子保护器件,包括TVS二极管阵列、瞬态抑制二极管、ESD抑制器和自恢复保险丝,旨在提高汽车系统的安全性、便利性和舒适性。

原厂动态    发布时间 : 2024-04-14

Littelfuse(力特) 应用于汽车市场的电路保护器件选型指南

目录- Electrical Threats and New Automotive Technologies Introduction    Automotive Applications in Modern Vehicles    Circuit Protection device for Automotive Application Selection table    Circuit Protection device for Automotive Application Selection Guide   

型号- VXXE14AUTO,S8025XXXP,10EV,DST10XXXS-A,VXXE30AUTO,TPSMF4L,AXGD10603,501A,AQ3130,SM24CANB-02HTG,AQ05C,30KPA,LR4-XXXF,SRPXXXF,V30MLAXXXXNHAUTO,527 SERIES,AQ24CANFD,MICROASMD0XXF,AQ3400-02UTG,V18AUMLAXXXX,PICOASMDC0XXS,881A,AHRFXXX,AQ1003-01ETG,NANOASMDC0XXF,AQ24CANA-02HTG,885 SERIES,AQ2555NUTG,SZ1SM,LSP380,DST15XXS-A,V20HXXXAUTO,0438XXX.WRA,AQ3118,AQ24CANA,526 SERIES,VXXE25AUTO,FEMTOASMDC0XXF,MIDI70V,AHEFXXX,V20PXXXAUTO,DST5XXXS-A,P6SMB510CA,AQ15C-01FTG,20EV,AQ24CAN,SESD1004Q4UG-0020-090,AGRFXXX,AQ24CANFD-02HTG,TPSMA6L,0441XXX.WRA,0881XXXUR,440A,ASMDCXXXF,S8016NAXP,SZNS6A,SZ1SMB,SZ1SMC,AQ4022,AXGD10402,0440XXX.WRA,HS4040XAQX,TP5KP,V48MLAXXXXNHAUTO,AQ1005-01ETG,V24AUMLAXXXX,IXD_6XXSI,MINIASMDCXXXF,NG SERIES,V16AUMLA2220NS,P6KE510CA,441A,ASMDXXXF,SZ1.5SMC,VXXE17AUTO,V48AUMLAXXXX,437A,0437AXXX.WRA,V18MLAXXXXNHAUTO,AQ3045,SP3213,TP1.5KE,SZP6SMB,AQ3045-01ETG,SESD0402X1BN-0010-098,SP3012-04UTG,38EV,HCRTP-MINI,V16AUMLA2220H,TP6KE,438A,SLD8S,V120MLAXXXXNHAUTO,30EV,521 SERIES,V14HXXXAUTO,IX4340NE,V14PXXXAUTO,SZSMF,0HEV,SHEV,AHSXXX-2,AQ1005,0885XXXDR,SJ6025XXXP,TPSMC,V3.5MLAXXXXNHAUTO,TPSMB,TPSMD,0501XXX.WRA,AQ24C-01FTG,MEGA70V,VXXE45AUTO,SM24CANA-02HTG,DST8XXXS-A

选型指南  -  LITTELFUSE  - v0720  - 2020/9/2 PDF 英文 下载

Littelfuse(力特) 连接器&保护器件快速参考指南

型号- LVR100K-240-AP,SESD,RF2943-000,LVR,TM2P-10271-2,2PRO,LVR016S,LVR125S,SESD0802Q4UG-0020-090,LVR012K-2,PESD,LVR200K-240-AP,LVR012S-1,LVR012S-2,RF2945-000,SESD0201X1BN-0015-096,LVR016K,LVR008NS,LVR033K-2,LVR075S-240,RF3923-000,PESD0402-240,LVR100S-240-AP,SESD1004Q4UG-0030-088,LVR008NK,LVR033S-2,LVR125K-240,SESD0402Q2UG-0030-088,RF3917-000,LVR055K,LVR200K-240-2,LVR100S-240,SESD0201X1UN-0030-088,LVR100S,RF3076-000,LVR055S,RF2193-000,SESD1103Q6UG-0020-090,PESD0603-240,LVR100K-240-2,LVR125K-240-2,LVR200S-240-AP,LVM2P-035R14431,SESD0402X1UN-0030-088,LVM2P-015R10431,RF3920-000,LVR200S,RF3078-000,LVR008NS-1,LVR008NS-2,SESD0201X1BN-0010-098,LVM2P-075R14431,LVR100S-240-2,LVR008NK-2,LVR005NS,RF3925-000,LVR005NK,LVR033K,SESD0402Q2UG-0020-090,TM2P-10271,SESD1004Q4UG-0020-090,LVR200S-240,LVR033S,LVR040S-1,LVR100K-240,LVR200K-240,LVR040S-2,RF3918-000,LVR075K-240-2,LVR125S-240-2,SESD0402X1BN-0015-096,PESD1206Q-240,LVR025K-2,LVR040K,LVR012K,LVR025S-2,LVR040S,LVR040K-2,LVR012S,SESD0402X1UN-0020-090,LVR016S-2,LVR016S-1,LVR075S-240-2,LVR016K-2,LVR125S-240,RF3077-000,LVR075K-240,LVR075S-240-AP,LVR075S,LVR075K-240-AP,RF3922-000,LVR005NK-2,SESD0402X1BN-0010-098,RF2192-000,LVR055S-1,LVR075S-1,LVR055S-2,LVR075K-1,LVR005NS-1,LVR005NS-2,LVR125K-240-AP,LVR125S-240-AP,RF2946-000,LVR200S-240-2,PESD0402-140,LVR025K,SESD0201X1UN-0020-090,LVR025S

快速参考指南  -  LITTELFUSE  - 2016年01月01日 PDF 英文 下载

【经验】优恩半导体解析电路保护套件TVS二极管与PPTC的具体作用

首先电子元器件我们可它分为两个大类:过压保护器件与过流保护器件。过流保护器件产品一般为自恢复保险丝(PPTC)、一次性保险丝为主要代表。优恩给大家介绍一下电路保护套件典型产品TVS二极管与PPTC的具体作用。

设计经验    发布时间 : 2023-01-10

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(英文)

目录- Company Introduction    ESD Protection Diodes(ESD)    Transient Voltage Suppressor(TVS)    Thyristor Surge Suppressors(TSS)    Sidac Thyristor(SIDAC)    Metal Oxide Varistors(MOV)    Gas Discharge Tube(GDT)    Spark Gap Protectors(SPG)    Micro Surge Protection Module(Micro-SPD)    Polymeric Positive Thermal Coefficient(PPTC)    RS485/422 Transceiver    CAN Transceiver    RJ45 Modular Jack connectors    Small signal devices    EMI Protection devices   

型号- SMDJ-AT SERIES,UNS3K,07DXXKJ,UN2E8-XXXML SERIES,SMBJ,UN2E5-XXXLL SERIES,40DXXK 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,10DXXK SERIES,10DXXKEC SERIES,UN490E,UN3E8-XXXHP,UNSDC12V-3L,07DXXK,07DXXL,UN3E5-XXXMSMD,20DXXK SERIES,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,1.5SMC,SA,UN2E8-XXXML,UNS4032 SERIES,UN2E8-XXXHL SERIES,UN2E5-XXXL HV,UNSDC58V-2L,SMD1210 SERIES,PXXXSD1,UN2E5-XXXLSMD,PXXXEC SERIES,UN3485,UN16,5KP,1.5KE SERIES,TP5.0SMDJ,14DXXL SERIES,07DXXKBC SERIES,UNS2K,UN2E8-XXXMSMD,UN2E5-XXXLL HV SERIES,10DXXKEC,UNSDC24V-2L,32DXXL SERIES,14DXXKJ SERIES,UN3E8-XXXHM SERIES,SMCJ,TPSMB SERIES,UN1210-XXXBSMD SERIES,UN3E6-XXXM,TPSMDJ SERIES,UN65HVD233,UN65HVD234,UN65HVD232,UN65HVD230,SMBJ-AT,UN2E5-XXXL,UN2E8-XXXM,UN1210-XXXBSMD,10DXXKJ SERIES,34SXX,KC SERIES,UN2E6-XXXLSMD SERIES,UN2E8-XXXH,UNB-XXXN-SMD,UN3E8-XXXHMF,32DXXKJ SERIES,UN1050,UN3232E,UNA-XXXM-SMD,UN1050ISODUB,PXXXG,32DXXKJ,40DXXK,UNS3220,UNB-XXXM-SMD,40DXXL,UN3085NE,SMCJS,UN2E8-XXXHSMD,TPSMB10J,32DXXK,32DXXL,PXXXEC,UN30,PXXXEB,PXXXEA,30KP,P6SMB SERIES,PXXXSC-2L SERIES,15KP,PXXXSC-2L,0603,SMD2920 SERIES,10SMBT,14DXXKJ,UN82C250,UNSRS485-2HL,UN82C251,10SMBJ,05DXXL SERIES,25DXXL SERIES,TPSMC SERIES,UN2H8-XXXL HV SERIES,UNSDC58V-3L,SM8Z SERIES,TPSMCJ SERIES,SM5Z,UN6,UN3E5-XXXL,UN3088E,KXXXG SERIES,PXXXTB,PXXXTA,UN2E5-XXXLSMD SERIES,KA SERIES,UNB-XXXN-SMD SERIES,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,PXXXSA SERIES,UNSRS485-2H,SMCJ-AT,25DXXKJ SERIES,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,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,20DXXL SERIES,25DXXKJ,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,KD,6.0SMAJ SERIES,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,UNS4032,0201 SERIES,UN1206-XXXASMD,UN2H8-XXXL HV,5.0SMDJ-AT,UN3E5-XXXL SERIES,20DXXKYC,UN3485S,UN3E6-XXXM SERIES,34SXX SERIES,UN2E5-XXXLL,05DXXK SERIES,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,32DXXK SERIES,34SXXJ SERIES,SMD1206 SERIES,SMBJ-AT SERIES,TPSMA SERIES,UNC-XXXM-SMD,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,07DXXK SERIES,SMD1206,UN0603,UN1812,20DXXL,20DXXK,PXXXEB SERIES,10SMBT SERIES,1.5KE,14DXXK SERIES,UNC-XXXN-SMD,05DXXKJ SERIES,3KP SERIES,P6KE,07DXXKJ SERIES,UNS3K SERIES,KXXXSD1 SERIES,TPSMC,SMD0805,25DXXK SERIES,TPSMB,TPSMA6J SERIES,TPSMA,TPSMBJ SERIES,34SXXJ,20DXXKJ,SMD1210,20DXXKJ SERIES,SMDJ SERIES,UN2220,UN2E8-XXXM SERIES,TPSMA6J,UNSDC12V-2L,1.5SMC SERIES,15KPS SERIES,SMAJ-AT,PXXXLA SERIES,UN3E5-XXXLSMD

选型指南  -  优恩半导体  - 2021 PDF 英文 下载

Manufacturing Site Extension for PolySwitch® China Made Surface Mountable PPTC (41443)

型号- RF4439-000,NANOASMDC010F-2,MICROSMD010F-2,RF5031-000,RF4927-000,RF1694-000,RF5112-000,NANOASMDCH050F/24-2,MICROASMDCH125F-2,RF0315-000,RF4897-000,ASMDC030F-2,RF5023-000,SETP0805-100-SE-2,RF1406-000,RF4560-000,RF0323-000,RF2145-000,RF2587-000,PICOSMDC050S-2,SMD300F-2,RF4269-000,SMD250F/15-2920-2,MINISMDC075F/33-2,MICROASMD005F-2,MINISMDC075F-2,RF2149-000,RF1348-000,SMD200F-2018-2,RF2153-000,RF0319-000,RF1518-000,RF4564-000,AHS200-2,RF5062-000,FEMTOASMDC010F/15-2,RF5051-000,NANOSMDC050F/13.2-2,RF4559-000,SMD300F/15-2,MINISMDC260F/12-2,SMDC050F-2,MINISMDC110H/24-2,RF1511-000,MINISMDC125F/16-2,MICROSMD050F-2,MINISMDC030F-2,MINIASMDC125F/16-2,RF2150-000,MINISMDC150F/24-2,RF5027-000,MINISMDC200F-2,RF0320-000,RF1905-000,PICOASMDCH020F-2,NANOSMDC020F-2,SMDH160-2,RF1345-000,SMD075F/60-2,FEMTOSMDC010F-2,RF0311-000,NANOASMDCH010F-2,RF1689-000,AHS300F/24-2,MINISMDC110F/24-2,SMD260F-2,RF3182-000,RF1179-000,RF1437-000,RF5055-000,MICROSMD200F-2,RF1411-000,RF1691-000,RF2161-000,RF4572-000,RF1183-000,RF4568-000,RF2285-000,RF2157-000,RF4525-000,RF1631-000,ASMD100F-2,RF1864-000,MINIASMDC260F/13.2-2,RF1638-000,NANOASMDC016F-2,NANOASMDC050F/13.2-2,PICOSMDC020S-2,RF1405-000,FEMTOASMDC008F-2,RF0316-000,RF4561-000,SMDC300F/24-2,MINIASMDC030F-2,SMD030F-2,RF1464-000,PICOASMDCH035F-2,RF0324-000,NANOASMDCH016F-2,ASMD250F-2,FEMTOSMDC016F-2,SETP0805-100-CC-2,NANOSMDC010F-2-S,RF1632-000,RF2286-000,RF0318-000,RF1403-000,MICROASMDCH150F-2,MINISMDC160F-2,RF2154-000,RF1180-000,NANOSMDC025F-2,MINISMDC150F/16-2,RF1636-000,ASMDC075F-2,MICROSMD005F-2,RF1352-000,RF3101-000,RF1347-000,ASMDC300F/24-2,RF5032-000,RF2148-000,RF1409-000,SMD150F-2,SMD150F-2018-2,SMD185F-2,RF3695-000,RF4576-000,PICOASMDC012S-2,ASMD150F/33-2,RF0312-000,NANOASMDCH005F-2,NANOASMDC035F-2,ASMD030F-2,PICOASMDC075S-2,NANOASMDC012F-2,RF4558-000,RF1346-000,ASMD185F-2,ASMD200F-2,RF4575-000,MICROSMD150F-2,NANOSMDC200F-2,MINISMDC110F-2,SMD250F-2,MINIASMDC150F/24-2,PICOSMDC075S-2,RF1336-000,SMD200F/24-2920-2,RF2158-000,RF1184-000,RF4565-000,RF1353-000,MICROASMDCH110F-2,NANOSMDC075F-2,PICOSMDC035S-2,MINIASMDC075F-2,ASMD075F-2,RF4983-000,FEMTOSMDC010F/15-2,RF1410-000,SMDC125F/33-2,SMD150F/33-2920-2,RF1637-000,RF5105-000,MINISMDC260F-2,SMD100F-2,MINISMDC150F-2,RF1479-000,FEMTOSMDC005F-2,MINIASMDC150F/12-2,RF1342-000,RF4571-000,NANOASMDCH035F/30-2,RF2160-000,SMD100F/33-2,MINIASMDC260F/12-2,RF5054-000,RF2169-000,RF2487-000,RF4898-000,PICOASMDC035S-2,PICOASMDCH016F-2,MINIASMDC110F/16-2,MINIASMDCH050F-2,RF3927-000,FEMTOSMDC035F-2,RF4570-000,RF1404-000,FEMTOSMDC012F-2,RF4562-000,RF0317-000,RF2287-000,AHS120F/33-2,RF1633-000,NANOSMDC150F-2,RF1181-000,RF2155-000,RF3692-000,RF1358-000,RF1641-000,SMDC030F-2,NANOASMDCH035F-2,RF1692-000,MICROSMD110F-2,MINIASMDC014F-2,RF4569-000,FEMTOASMDC005F-2,MINISMDC260F/13.2-2,RF3102-000,RF1335-000,RF1696-000,RF1238-000,RF1378-000,RF5033-000,PICOSMDC012S-2,SMD030F-2018-2,RF0313-000,ASMDC050F-2,RF3696-000,RF5064-000,RF1408-000,RF2151-000,MINISMDC100F-2,PICOSMDC110S-A-2,NANOSMDC035F-2,RF0325-000,SMD150F/33-2,RF1351-000,RF2147-000,MINIASMDC020F-2,MINISMDC200F/16-2,RF0422-000,MINISMDC050F-2,SMD200F-2,MINISMDC260F/16-2,PICOSMDC110S-2,MICROSMD035F-2,RF1185-000,RF1478-000,RF4574-000,MINISMDC075F/24-2,AHS080-2018-2,SMDC075F-2,MICROASMD050F-2,RF5053-000,MINIASMDC200F/16-2,RF2159-000,RF2477-000,NANOASMDC025F-2,RF1354-000,RF4566-000,RF2573-000,RF1907-000,NANOASMDCH075F-2,SMD075F-2,AHS160-2,RF0322-000,RF4929-000,RF1467-000,RF1471-000,RF1644-000,RF1343-000,SMDC185F/33-2,PICOASMDC020S-2,RF5025-000,ASMD125F-2,MINISMDC200F-A-2,NANOSMDC012F-2,MINIASMDC075F/33-2,MINISMDC010F-2,RF1359-000,RF1634-000,RF3693-000,MICROASMD010F-2,RF0308-000,RF5030-000,MICROSMD175F-2,RF1350-000,RF2146-000,RF4367-000,RF4896-000,RF4438-000,NANOASMDC020F-2,PICOASMDCH050F-2,MINIASMDC010F-2,RF2162-000,SMD050F-2,ASMDC125F/33-2,ASMDC185F/33-2,RF1407-000,RF0314-000,RF1989-000,RF1640-000,MINISMDC150F/12-2,RF4466-000,PICOASMDC110S-2,RF5029-000,RF5034-000,RF0326-000,RF1512-000,MINISMDC125F-2,MICROSMD050H-2,RF1695-000,RF4914-000,MICROSMD075F-2,RF1334-000,RF2926-000,RF4563-000,AHS300-2,RF4520-000,MINISMDC110F/16-2,RF2152-000,FEMTOSMDC020F-2,PICOASMDC050S-2,NANOSMDC010F-2,ASMD150F-2,NANOSMDC110F-2,RF4795-000,SMD100F-2018-2,RF5052-000,RF1639-000,MINISMDC020F-R-2,PICOASMDCH010F-2,MINISMDC020F-2,RF4778-000,RF4646-000,SMDH120-2,AHS120-2,DECASMDC050F/60-2,RF4441-000,PICOASMDCH005F-2,RF4573-000,RF1344-000,MINIASMDC110F/24-2,RF1835-000,MINIASMDC075F/24-2,FEMTOSMDC008F-2,MINIASMDC050F-2,PICOSMDC010S-2,SMD125F-2,MINISMDC300F-2,RF4298-000,ASMD050F-2,RF4819-000,RF2156-000,MINIASMDC260F/16-2,RF0321-000,NANOSMDC016F-2,MINIASMDC150F/16-2,RF4161-000,RF1690-000,PICOASMDC010S-2,RF1338-000,MICROASMDCH075F-2,RF4567-000,MINISMDC014F-2,RF1182-000,RF1355-000,RF5024-000

产品变更通知及停产信息  -  LITTELFUSE  - May 30th 2022 PDF 英文 下载

Littelfuse(力特) 气体放电管(GDTs)数据手册

型号- GTCR37-401M-R10,GTCN28-750M-R05,GTCS23-231M-R01-2,GTCA28-231L-R05,GTCN35-471M-R05,GTCS36-551M-R05-2,GTCS36-351M-R10-2,GTCS25-201M-R02,GTCA25-261M-R02,GTCS26-231M-R05,GTCS25-601M-R02,GTCC23-141M-R01,GTCS28-421M-R10-2,GTCS36-501M-R10-2,GTCS38-421M-R10-2,GTCS26-231M-R05-2,GTCS35-261M-R05,GTCN37-351M-R10,GTCS36-231M-R05-2,GTCT35-141M-R05,GTCN25-141M-R02,GTCS26-551M-R05-2,GTCC23-231M-R01-2,GTCS26-501M-R05,GTCS38-601M-R10-2,GTCN38-601M-R10,GTCN38-201M-R10,GTCS36-201M-R05-2,GTCS26-201M-R05-2,GTCR37-261M-R10-FS,GTCS28-601M-R10-2,GTCS35-401M-R05,GTCA38-401M-R10-FS2,GTCS28-301M-R20,GTCN28-750M-R10,GTCR37-750M-R10,GTCA35-201M-R05,GTCA35-900M-R05,GTCS36-261M-R05-2,GTCN35-551M-R05,GTCR37-421M-R10-FS,GTCN28-401M-R10,GTCA35-601M-R05,GTCS26-261M-R05-2,GTCS23-750M-R01,GTCN25-900M-R02,GTCS23-201M-R01-2,GTCN38-900M-R10,GTCA35-141M-R05,GTCN35-151M-R05,GTCA35-551M-R05-FT,GTCN28-750M-R20,GTCA25-401M-R02,GTCA38-401M-R10,GTCN28-801M-R05,GTCS28-750M-R05,GTCA36-231M-R05,GTCA25-471M-R02,GTCN28-401M-R05,GTCX35-XXXM-R05,GTCS38-231M-R10,GTCN38-251M-R10,GTCR37-261M-R10,GTCS26-151M-R05,GTCS26-551M-R05,GTCA35-351M-R05,GTCS38-501M-R10,GTCR37-471M-R10,GTCA28-900M-R10,GTCN26-201M-R05,GTCN26-501M-R05,GTCA38-261M-R10,GTCS38-201M-R10,GTCR37-501M-R10-FS,GTCS25-141M-R02,GTCA26-351M-R05,GTCC23-201M-R01,GTCA28-231M-R10,GTCA28-231M-R05,GTCS28-351M-R10,GTCN28-261M-R20,GTCN35-401M-R05,GTCS36-141M-R10-2,GTCR37-471M-R10-FS,GTCA28-900M-R20,GTCT35-900M-R05,GTCT35-351M-R05,GTCN25-601M-R02,GTCS35-471M-R05,GTCA35-351M-R05-FT,GTCS36-421M-R10-2,GTCA28-231M-R20,GTCS28-351M-R05,GTCS28-351M-R20-2,GTCS36-151M-R05-2,GTCC23-351M-R01,GTCA28-601M-R10,GTCS28-401M-R05,GTCA36-501M-R05,GTCS28-501M-R10-2,GTCT35-601M-R05,GTCN37-900M-R10,GTCS35-151M-R05,GTCS36-301M-R05-2,GTCS26-251M-R05,GTCS23-750M-R01-2,GTCN25-351M-R02,GTCS36-301M-R05,GTCA28-251M-R10,GTCA36-421M-R05,GTCS35-750M-R05,GTCS36-601M-R10-2,GTCA28-302M-R03,GTCN28-301M-R10,GTCN35-421M-R05,GTCN26-151M-R05,GTCA28-242M-R03,GTCN37-301M-R10,GTCA26-401M-R05,GTCC23-201M-R01-2,GTCN28-261M-R05,GTCN36-750M-R10,GTCA28-601M-R05,GTCS28-401M-R10,GTCS38-421M-R10,GTCA28-251M-R05,GTCX36-XXXM-R05,GTCA28-251M-R20,GTCS23-301M-R01,GTCS36-261M-R05,GTCS35-501M-R05,GTCA36-151M-R05,GTCA25-551M-R02,GTCA28-900M-R05,GTCN37-251M-R10,GTCN28-301M-R20,GTCS26-471M-R05,GTCS36-900M-R05-2,GTCS38-151M-R10,GTCN36-750M-R05,GTCN38-231M-R10-FT,GTCN28-551M-R05,GTCA36-201M-R05,GTCN26-141M-R05,GTCN26-421M-R05,GTCS28-351M-R20,GTCN28-261M-R10,GTCS36-301M-R10,GTCX36-XXXM-R10,GTCN36-231M-R10-FT,GTCA36-141M-R05,GTCS38-231M-R10-2,GTCS28-141M-R05,GTCA28-141M-R20,GTCS35-231M-R05,GTCS36-421M-R05-2,GTCS25-301M-R02,GTCR36-351M-R10-FT,GTCN36-421M-R05,GTCN28-351M-R10,GTCR37-351M-R10-FS,GTCA25-231M-R02,GTCS26-900M-R05,GTCN28-421M-R10,GTCA28-551M-R05,GTCN28-421M-R05,GTCA28-601L-R20,GTCC23-421M-R01-2,GTCS36-251M-R10-2,GTCS36-201M-R10,GTCS36-900M-R10,GTCN36-351M-R05,GTCA28-252M-R03,GTCA28-312L-R03,GTCX26-XXXM-R05,GTCS36-601M-R10,GTCN28-351M-R20,GTCN36-421M-R10,GTCN28-501M-R05,GTCN38-351M-R10,GTCS28-141M-R10,GTCS28-141M-R10-2,GTCN38-551M-R10,GTCA38-141M-R10,GTCA28-551M-R10,GTCS23-151M-R01,GTCN28-471M-R10,GTCN28-501M-R10,GTCN36-351M-R10,GTCR37-551M-R10,GTCA35-301M-R05,GTCN26-351M-R05,GTCS28-261M-R10,GTCS28-201M-R10-2,GTCN37-201M-R10,GTCN37-601M-R10,GTCS38-351M-R10,GTCS38-351M-R10-2,GTCS25-351M-R02,GTCS28-201M-R10,GTCR37-151M-R10,GTCS26-141M-R05,GTCS28-141M-R20,GTCS28-141M-R20-2,GTCA25-301M-R02,GTCA38-301M-R10,GTCT35-251M-R05,GTCN36-301M-R05,GTCS25-231M-R02,GTCS26-601M-R05,GTCN35-750M-R05,GTCS35-421M-R05,GTCT35-301M-R05,GTCN28-471M-R05,GTCS36-471M-R05-2,GTCS28-261M-R20,GTCS36-201M-R10-2,GTCN28-351M-R05,GTCR37-900M-R10-FS,GTCS36-750M-R05-2,GTCN38-421M-R10,GTCS26-750M-R05-2,GTCS35-301M-R05,GTCA36-471M-R05,GTCS36-601M-R05-2,GTCS28-201M-R20,GTCS26-201M-R05,GTCA26-750M-R05,GTCN36-261M-R05,GTCN35-601M-R05,GTCN35-501M-R05,GTCA28-201M-R10,GTCN26-301M-R05,GTCA36-601M-R05,GTCC23-301M-R01,GTCS38-301M-R10,GTCA26-551M-R05,GTCN25-750M-R02,GTCA35-251M-R05,GTCR37-141M-R10,GTCC23-XXXM-R01-2,GTCA35-151M-R05,GTCS28-251M-R10,GTCN35-900M-R05,GTCC23-900M-R01-2,GTCN36-401M-R10,GTCN36-301M-R10,GTCA28-362M-R03,GTCA36-900M-R05,GTCS38-401M-R10-2,GTCS36-151M-R05,GTCN26-231M-R05,GTCS26-401M-R05-2,GTCA28-201M-R05,GTCR37-141M-R10-FS,GTCA28-151M-R20,GTCT35-151M-R05,GTCR37-750M-R10-FS,GTCS23-XXXM-R01-2,GTCS23-201M-R01,GTCN38-471M-R10,GTCC23-231M-R01,GTCA28-201M-R20,GTCT35-201M-R05,GTCS23-900M-R01-2,GTCA38-231M-R10,GTCS38-750M-R10-2,GTCN36-261M-R10,GTCR37-551M-R10-FS,GTCN36-401M-R05,GTCA26-601M-R05,GTCS28-251M-R20,GTCS26-151M-R05-2,GTCS35-351M-R05,GTCS28-261M-R05,GTCC23-301M-R01-2,GTCA26-900M-R05,GTCA28-151M-R10,GTCT35-231M-R05,GTCS36-151M-R10,GTCS28-231M-R05,GTCA25-141M-R02,GTCN37-141M-R10,GTCS28-231M-R10,GTCS28-261M-R10-2,GTCN26-251M-R05,GTCA28-402M-R03,GTCS38-251M-R10,GTCS23-141M-R01,GTCS25-251M-R02,GTCS36-141M-R10,GTCS28-301M-R10,GTCA28-151M-R05,GTCA26-471M-R05,GTCS36-201M-R05,GTCA38-201M-R10,GTCS36-551M-R10-2,GTCS23-301M-R01-2,GTCA38-151M-R10,GTCA25-201M-R02,GTCS28-231M-R20,GTCN38-501M-R10,GTCA25-151M-R02,GT

数据手册  -  LITTELFUSE  - 2017年08月15日 PDF 英文 下载

Littelfuse(力特) SLD TVS二极管数据手册

型号- SLD16U-017,SLD18-018,SLD43-018,SLD26-018,SLD,SLD33U-017,SLDXXU-017X,SLD17-018,SLD17U-017,SLD24U-017,SLD40U-017,SLD51-018,SLD10U-017,SLDXXXXX,SLD60-018,SLD16-018,SLD33-018,SLD43U-017,SLD51U-017,SLD54U-017,SLD20-018,SLD14U-017,SLD11U-017,SLD58-018,SLD28-018,SLD15-018,SLD14-018,SLDXXXX-B,SLD45-018,SLD30-018,SLD13-018,SLD36U-017,SLD22-018,SLD22U-017,SLD48-018,SLD30U-017,SLD12-018,SLD60U-017,SLD28U-017,SLD13U-017,SLD58U-017,SLD24-018,SLD11-018,SLD12U-017,SLD20U-017,SLD54-018,SLD48U-017,SLD40-018,SLD18U-017,SLD15U-017,SLD45U-017,SLD10-018,SLD36-018,SLD26U-017

数据手册  -  LITTELFUSE  - Revised: 09/10/16  - 2016年09月10日 PDF 英文 下载

【产品】尺寸最小的Littelfuse PPTC保护便携设备,可避免因过电流、过热条件而损坏

芝加哥,2020年8月4日 - 全球领先的电路保护、电源控制和感应技术制造商Littelfuse, Inc. 今天宣布推出新的PPTC产品系列,该产品系列旨在让当今最常用的消费电子产品的下一代产品变得更小巧、更可靠。PolySwitch® zeptoSMDC 系列在锂离子电池组IC和电量计的信号线上提供强大的过电流和过电压保护。

新产品    发布时间 : 2020-08-07

【产品】产品空间太有限?试试这些紧凑型可复式保险丝吧!

力特POLYFUSE无铅表面贴装型自恢复PPTC专为空间极有限且需要自恢复保护的应用而设计的。

新产品    发布时间 : 2017-02-11

Littelfuse(力特) SL1011A/SL1411A系列气体放电管数据手册

型号- SL1011A075A,SL1411A,SL1411A800A,SL1011A150,SL1011A600A,SL1411A600A,SL1011A230,SL1011A075,SL1011A350,SL1011A470,SL1011A250,SL1011AXXXX,SL1411AXXXXX,SL1411A470A,SL1011A470A,SL1411A600,SL1411A800,SL1411A090C,SL1411A470,SL1411A250,SL1411A350,SL1411A075,SL1411A230,SL1411A150,SL1011A090,SL1411A090,SL1011A260,SL1011A,SL1011A145,SL1411A350A,SL1011A600,SL1011A500

数据手册  -  LITTELFUSE  - Revised: 11/23/16  - 2017年08月15日 PDF 英文 下载

【应用】Vrwm为15V!这款保护器件大幅度超出ESD标准

Vrwm为15V,大幅度超出ESD测试标准,具有更强的保护能力,且设计简单。

新应用    发布时间 : 2019-09-03

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ESD防护解决方案

整体外形尺寸小至0.6*0.3*0.3mm (DFN0603),工作电压范围覆盖2.5V~36V,电容值低至0.2pF,浪涌能力最高可达240安培,静电等级可达空气放电、接触放电±30KV。提供免费浪涌测试仪、静电测试仪测试。

提交需求>

贴片LED二极管/灯珠定制

可定制LAMP LED、 CHIP LED、 PLCC LED、 汽车用车规级LED、COB LED的尺寸/电压/电流等参数,电压1.5-37V,电流5-150mA,波长470-940nm。

最小起订量: 30000 提交需求>

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授权代理品牌:加工与定制

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