settinginfinidock

infinidock  时间:2021-01-27  阅读:()
ApplicationsEngineeringNote:AEN-0103CADKDOCApplicationoftheTypeCHRHighResistancePrecisionChipResistorsWhenusingtheTypeCHRresistorthreefactorsarekeytooptimizingtheperformanceofthishighresistanceprecisionchipresistor:Temperature,CircuitBoardLayout,andSolderAttachment.
Thesehighresistanceprecisionchipresistorsaredesignedforuseinextremelylowsignaldetection/amplificationcircuits.
Thedesignercanchoosefromanumberofavailablestandardresistancevaluestooptimizethecircuitdesign.
ApplicationsincludePhotodiodesignalamplification,photomultipliers,ionizationdetection,etc.
Theseprecisionhighresistancechipresistorscanalsobeidealforuseastheinputresistorforhighimpedancevoltagedivisionandgainsetting.
OperatingTemperaturevs.
optimizedperformance:TheTypeCHRHighResistancePrecisionChiphasaverylowtemperaturecoefficientrelativetotheoperatingtemperature.
Forresistanceof10Megupto25Megthelow±25ppm/°Cappliesoverthetemperaturerangeof–40°Cto+85°C,referencedto+25°C.
Forresistancevaluesabove25Megthetemperaturecoefficientisdefinedintwotemperaturerangestohelpinoptimizingperformance.
AtemperatureCoefficientof±35ppm/°Cappliesfrom+10°Cto+40°C,referencedto+25°Cand±70ppm/°Cappliesoverthetemperaturerangeof–40°Cto+85°C,referencedto+25°C.
Formaximumstability,theproductshouldbeoperatedinanambienttemperaturebelow+85°C.
OperatingStability,TCperformancevs.
circuitboardlayout:TheTypeCHRHighResistancePrecisionChipResisorhasexcellentTemperatureCoefficientandstabilityspecifications.
Toachievethebestperformanceitisimportanttominimizethecontributionofcircuitboardissuesrelativetohighresistanceleakage.
TooptimizethelayoutforthischipresistorthecircuitboardshouldhaveaslotdesignedintheboarddirectlyundertheresistorelementtoprovideforenhancedcleaningunderReleaseDate:03/12/03,Rev.
A,Rev.
Date:03/12/03Page1of1CADKDOCCaddockElectronics,2003AcopyofthisApplicationNotecanbeobtainedatwww.
caddock.
comthishighresistancechip.
Additionally,theslotwillprovidehighinsulationresistance,providedbythe"slot",theairgap.
Theslotwillalsoreducecapacitivecouplingtothecircuitboardfromthechipresistorelement(theFlipChip"FCStyle"chipresistor'selementfacestowardtheboardsurfaceinthesolderingofthisresistortothecircuitboard).
Thereshouldnotbeanycoppertraceinthelayoutdirectlyundertheresistor(theslothelpstopreventthisdesignerroraswell).
(SeeFig.
#1forcircuitboardlayoutsketch).
StyleFC–FlipChipVersionforsurfacemountapplications.
Thisversionhassolderablemetallizedterminationpadsononesideofthesubstrate,thesamesideastheresistiveelement.
ThebacksideofthesubstrateisbareceramicSolderattachmentnote:Therecommendedsoldersforflipchipsolderattachmentare62Sn/36Pb/2Ag,96.
5Sn/3.
5AgorstandardSn/Ag/Cusolderalloys.
CHIPRESISTORSOLDERPASTE(REFLOWED)FLIPCHIPSOLDEREDONCIRCUITBOARDCIRCUITBOARDCIRCUITBOARDCIRCUITBOARDTypicalslotwidthisaminimumof1.
5timesthechipresistorwidth.
Fig.
1Slotthroughcircuitboard

稳爱云(26元),香港云服务器 1核 1G 10M带宽

稳爱云(www.wenaiyun.com)是创建于2021年的国人IDC商家,主要目前要出售香港VPS、香港独立服务器、美国高防VPS、美国CERA VPS 等目前在售VPS线路有三网CN2、CN2 GIA,该公司旗下产品均采用KVM虚拟化架构。机房采用业内口碑最好香港沙田机房,稳定,好用,数据安全。线路采用三网(电信,联通,移动)回程电信cn2、cn2 gia优质网络,延迟低,速度快。自行封装的...

俄罗斯vps主机推荐,怎么样俄罗斯vps俄罗斯vps速度怎么样?

俄罗斯vps速度怎么样?俄罗斯vps云主机节点是欧洲十大节点之一,地处俄罗斯首都莫斯科,网络带宽辐射周边欧洲大陆,10G专线连通德国法兰克福、法国巴黎、意大利米兰等,向外连接全球。俄罗斯vps云主机速度快吗、延迟多少?由于俄罗斯数据中心出口带宽充足,俄罗斯vps云主机到全球各地的延迟、速度相对来说都不错。今天,云服务器网(yuntue.com)小编介绍一下俄罗斯vps速度及俄罗斯vps主机推荐!俄...

Vinahost - 越南VPS主机商月6美元 季付以上赠送时长最多半年

Vinahost,这个主机商还是第一次介绍到,翻看商家的介绍信息,是一家成立于2008年的老牌越南主机商,业务涵盖网站设计、域名、SSL证书、电子邮箱、虚拟主机、越南VPS、云计算、越南服务器出租以及设备托管等,机房主要在越南胡志明市的Viettle和VNPT数据中心,其中VNPT数据中心对于国内是三网直连,速度优。类似很多海外主机商一样,希望拓展自己的业务,必须要降价优惠或者增加机房迎合需求用户...

infinidock为你推荐
可爱桌面背景图片浪漫桌面壁纸腾讯空间首页qq空间主页怎么每个都看不见视频制作软件哪个好我想学做视频跟作图,推荐下什么软件好录屏软件哪个好手机录屏的话那个软件会好一点二手车网站哪个好买二手车去哪里买比较划算?网页传奇哪个好玩近有什么好玩的网页传奇介绍么电陶炉和电磁炉哪个好电陶炉和电磁炉哪个好手机杀毒哪个好手机杀毒软件哪个最好用扣扣空间登录QQ空间怎么老是提示登陆?qq空间登录器QQ空间校友网页自动登陆器
虚拟主机租用 鲁诺vps buyvm burstnet 美元争夺战 cdn服务器 私有云存储 web服务器架设软件 绍兴高防 蜗牛魔方 京东商城0元抢购 毫秒英文 web服务器的架设 国外免费asp空间 vip域名 万网空间购买 架设邮件服务器 数据库空间 华为云建站 卡巴斯基官网下载 更多