【技术】解析贴片式压敏电阻的5个代表参数
目前来讲,贴片压敏电阻的型号是不统一的,型号基本是由十几个英文字母和数字组合而成。倘若您能够对MOV压敏电阻规格及参数有所了解的话,相信您就能轻松get到与自己需求一样的压敏电阻。通常贴片式压敏电阻电阻有尺寸、电阻、容差、温度系数和封装这5个代表参数,本文优恩将为您进行介绍。
一、尺寸
贴片式压敏电阻有7个尺寸,由2个尺寸代号表示,分别为:1.4位数字表示的EIA代码,前两位数字代表电阻器的长度和宽度,以英寸为单位。2.同样也是4位数字表示的公制代码,以毫米为单位,尺寸不同压敏电阻的额定功率也不同。
二、电阻
压敏电阻标称电阻值由系列决定。各系列按电阻容差分(容差越小分电阻越多),其中常用E-24(电阻值容差为5%),贴片式的压敏电阻表面会用3位数字代表阻值,1-2位为有效数字,3位表示后面的零的个数。如遇到小数点,则会用字母“R”表示,代表占一位有效位。
三、容差
贴片式压敏电阻的容差有四个等级,分别为:F级,G级,J级,K级,用百分比表示就是1%,2%,5%;10%。
四、温度系数
贴片式压敏电阻的温度系数同样也有2个等级,分别为W级和X级,只有公差为F级的电阻器使用X级,其他等级的电阻器一般为W级。
五、封装
贴片式压敏电阻封装有2类:散装和胶带卷。其工作温度范围为在-55~125℃之间,封装尺寸大小还与压敏电阻MAX工作电压有联系,一般来说0201封装较低,0402封装和0603封装为50V。
对于压敏电阻的电容和电阻,常用按E-12排列生产(E-12是12个数字按比例从1到10除,在这些数字后面加k,或者加M成为K类,M级电阻器/电容器也是如此。
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型号- UN1206-240H,UN1206-560H,UN1206-210H,UN1206-120H,UN1206-330H,UN1206-300H,UN1206-420H,UN1206-XXXH,UN1206-101H,UN1206-180H,UN1206-8V0H,UN1206-270H,UN1206-390H,UN1206-5V0H,UN1206-360H,UN1206-470H,UN1206-680H,UN- 1206270- H,UN1206-820H
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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
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SERIES,14D751KSC,SMD1812-300-16V,SM8Z28A,SMDJ19,ESD12V52D-HA,SMDJ18,SMDJ17,SMDJ16,TPSMB10J16CA,SMDJ15,TPSMBJ,SMDJ14,TPSMB56CA,SMDJ13,SMDJ12,SMDJ11,SMDJ10,SMCJ36A,SMD0805-010-30V,P6KE30,32D621KJ,SMCJ36C,SA190CA,5.0SMDJ75C,5.0SMDJ75A,UNA-SMD,15SMBJ160CA,SMF54CA,TPSMA6J18A,P4SMA91A,P6KE27,TPSMAJ,P6SMB170A,P0300DM,UN1812-390HS,P6KE24,P6KE22,P6KE43,SMCJ45CA,UN3E8-200HSMD,UN0603E,P6KE75CA,P0300EA,P0300EB,P0300EC,P6KE39,TPSMA6J19A,UN2H8,P6KE36,TCF03025U12002A SERIES,P6KE33,10SMBJ64A,SMCJ58CA,P6KE51,TPSMBJ110CA,SMDJ180CA-AT,25D511KJ,SMD1206-300,SMDJ7.5CA,TPSMA75A,UN1812-270HS,5.0SMDJ17A-AT,1.5KE18CA,14D201KJ,UN30-110,BLC03C-4,UN2K8-350L-2,5.0SMDJ70CA,UN2E5,UN2K8-350L-1,SMCJ33A,P6KE47,SMCJ33C,TPSMA6J16A,UN2E8,UN2E8-150HL,P4SMA350A,P6KE62,P4SMA6.8CA,ESD03V23T-LC,ESD03V23T-LA,ESD08V52D-A,15SMBJ180A,14D301K,10SMBT30A,P6KE56,ESD08V52D-C,TPSMA6J17A,5.0SMDJ33CA,UNS3K,UN2E6-SMD SERIES,UN1812-390H,TPSMDJ24CA,20D361K,40D361KJ,4.0SMF13CA,SMDJ160A,SMBJ160CA-AT,TP5.0SMDJ28A,
TMOV20D Series Thermal Fuse & MOV (TFMOV)
型号- 20D361KTB,20D361KTA,20D781KTA,20D781KTB,20D951KTA,20D951KTB,20D621KTB,20D621KTA,20D181KTB,20D181KTA,20D101KTB,20D101KTA,20D271KTA,20D271KTB,20D681KTB,20D241KTA,20D391KTB,20D391KTA,20D561KTB,20D561KTA,20D431KTB,20D431KTA,20D241KTB,20D121KTB,20D121KTA,20D681KTA,20D821KTA,20D221KTA,20D221KTB,20D112KTB,20D112KTA,20D301KTA,20D301KTB,20D151KTA,20D821KTB,20D911KTB,20D911KTA,20D151KTB,TMOV20D SERIES,20D751KTA,20D751KTB,TMOV20D,20D201KTA,20D331KTB,20D331KTA,20D201KTB,20D471KTA,20D471KTB,20D511KTA,20D511KTB,TMOV-20DXXX-KTB,TMOV-20DXXX-KTA,20D102KTB,20D102KTA
DC24V电源端口浪涌保护
DC24V电源端口浪涌保护DC24V电源是一种为设备提供稳定、可靠的直流电压输出的电源,其广泛应用于工业自动化控制系统。此方案设计为多级保护的方式,初级采用通流能力较强的陶瓷气体放电管和压敏电阻组合来承受泻放大的浪涌电流,中间使用电感做退耦,次级选用响应电压精准、稳定且快速的TVS管做保护,能有效抑制各类浪涌过电压,使后端的DC芯片及电路得到全面的保护。
应用方案 发布时间 : 2024-01-24
ESD0402-0603 Series MULTILAYER CHIP VARISTORS
型号- ESD0402-5R5E500,ESD0402-140E330,ESD0402-5R5E100,ESD0402-5R5E220,ESD0603 SERIES,ESD0402-120E5R0,ESD0402-120E131,ESD0402-5R5E481,ESD0402,ESD0603,ESD0603-140E330,ESD0402-240E2R5,ESD0603-180E0R2,ESD0402-9R0E181,ESD0402-5R5E0R2,ESD0402-140E161,ESD0402-180E150,ESD0402 SERIES,ESD0603-240E2R5,ESD0603-180E0R8,ESD0603-180E5R0,ESD0402-5R5E0R8,ESD0603-5R5E220,ESD-0603-5R5-E-0R2,ESD0603-5R5E100,ESD0402-120E101,ESD0603-5R5E500
【经验】GDT放电管与MOV压敏电阻串联使用时是否导通在前?
GDT放电管与压敏电阻两个器件串联时,通常小容量的分压较高,大容量的分压较小,MOV压敏电阻的寄生电容是陶瓷气体放电管的百倍,因此绝大部分的电压会给到放电管,放电管导通之后,再施加到压敏电阻上,此时压敏电阻就会导通。
设计经验 发布时间 : 2022-12-04
14D Series Radial Lead Varistor (MOV)
型号- 14D181K,14D,14D102KJ,14D270K,14D391K,14D330KJ,14D560KJ,14D270KJ,14D821K,14D221KJ,14D470KJ,14D681KJ,14D122K,14D391KJ,14D182KJ,14D102K,14D162K,14D142K,14D121KJ,14D142KJ,14D112KJ,14D390K,14D180L,14D821KJ,14D241KJ,14D820K,14D101K,14D331K,14D561K,14-D-XXX-K-X-X-X-X,14D511KJ,14D751K,14D121K,14D301KJ,14DXXXK,14D101KJ,14D331KJ,14D621KJ,14D561KJ,14D271KJ,14D431KJ,14D201KJ,14D220KJ,14D471KJ,14D621K,14D680KJ,14D751KJ,14D221K,14D112K,14D390KJ,14D560K,14D431K,14D681K,14D162KJ,14D201K,14D471K,14D181KJ,14D241K,14D122KJ,14D330K,14D271K,14D182K,14D361KJ,14D SERIES,14D781KJ,14D820KJ,14D511K,14D911K,14D180LJ,14D911KJ,14D781K,14D151KJ,14D680K,14D470K,14D301K,14D151K,14D361K,14D220K
ESD0402M-0603M Series MULTILAYER CHIP VARISTORS
型号- ESD0603M03V,ESD0603M15V,ESD0603M12V,ESD0603M24V,ESD0603M08V,ESD0603M05V,ESD0402M03V,ESD0402M24V,ESD0402M05V,ESD0402M15V,ESD0402M,ESD0402M SERIES,ESD0402M12V,ESD0603M,ESD0402M08V,ESD0603M SERIES
【技术】TVS管被击穿后的失效模式有哪些?
TVS(瞬态抑制二极管)可有效防护电路遭受瞬态浪涌电压及电流的危害。但它一旦被击穿,可能出现的现象一般有哪些?今天优恩半导体来为大家讲解。GDT放电管、TSS放电管、压敏电阻等电子元件是现如今在电子电路防护中用的比较多的几种过压保护器件,其应用领域十分广泛。
技术探讨 发布时间 : 2023-03-23
32D Series Radial Lead Varistor (MOV)
型号- 32D182K,32D271K,32D621KJ,32D142K,32D911KJ,32D162K,32D331KJ,32D561KJ,32D122KJ,32D162KJ,32D201KJ,32D301K,32D471KJ,32D511K,32D431KJ,32D911K,32D241KJ,32D361K,32D781K,32D361KJ,32D SERIES,32DXXXK,32D201K,32D431K,32D221K,32D112K,32D621K,32D391KJ,32D241K,32D471K,32D,32D681K,32D102KJ,32D182KJ,32-D-XXX-K-X-X-X-X,32D142KJ,32D511KJ,32D781KJ,32D751K,32D331K,32D681KJ,32D221KJ,32D391K,32D561K,32D112KJ,32D301KJ,32D821K,32D271KJ,32D751KJ,32D102K,32D821KJ,32D122K
UNS4032 Series Radial Lead Varistor (MOV)
型号- UNS4032,UN-S-4032-471-H,UNS4032-431H,UNS4032-511H,UNS4032-621H,UNS4032-471H,UNS4032-561H,UNS4032-271H,UNS4032 SERIES
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服务
可贴PCB板厚范围:0.6~2.0mm,也支持生产软硬接合板,拼板长宽:50*50mm~550*500mm,PCBA快速贴片支持01005CHIP元件。
最小起订量: 1片 提交需求>
配备KEYSIGHT网络分析仪,可测量无线充电系统发射机/接收机线圈的阻抗,电感L、电阻R、电感C以及品质因数Q,仿真不同充电负载阻抗下的无线充电传输效率。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
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