特征：t&egr***e;特zhēng征：Non-contactswitching非接触开关fēi非jiē接ch&ugr***e;触kāi开guān关Fourstandardaperturesizesforhighresolution高分辨率的四个标准孔径gāo高fēn分bi&agr***e;n辨lǜ率de的s&igr***e;四g&egr***e;个biāo标zhǔn准kǒng孔j&igr***e;ng径Lowprofile·低调·dī低di&agr***e;o调0.080”(2.03mm)wide,0.250”(8.89mm)deepslot0.080”（2.03mm）宽，0.250”（8.89mm）深槽0.080”（2.03mm）kuān宽，0.250”（8.89mm）shēn深cáo槽ChoiceofPCBoardorwiremountingsPCBoard或电线安装的选择明：shuō说míng明：EachOPB820andOPB821Zdevicec***istsofaninfraredemittingdiode(LED,890nmcenterw***elength)andaNPNsiliconphototransistormountedinalow-costblackplastichousingonoppositesidesofan0.080”(2.03mm)wideslot.Eachdeviceinthisserieshasa0.040”(1.02mm)wideaperturelocatedinfrontoftheinfrareddiode.Phototransistorswitchingoccurswhenanopaqueobjectpassesthroughtheslot.每个opb820和opb821z设备都由一个红外发射二极管（LED，890nm中心波长）和一个NPN硅光电晶体管组成，安装在一个低成本的黑色塑料外壳中，在一个0.080”（2.03mm）宽插槽的对侧。本系列中的每个设备在红外二极管前面都有一个0.040”（1.02mm）宽的光圈。光电晶体管开关发生在不透明物体通过槽时。měi每g&egr***e;个opb820hé和opb821zsh&egr***e;设b&egr***e;i备dōu都yóu由yī一g&egr***e;个hóng红w&agr***e;i外fā发sh&egr***e;射&egr***e;r二jí极guǎn管（LED，890nmzhōng中xīn心bō波cháng长）hé和yī一g&egr***e;个NPNguī硅guāng光di&agr***e;n电jīng晶tǐ体guǎn管zǔ组chéng成，ān安zhuāng装z&agr***e;i在yī一g&egr***e;个dī低chéng成běn本de的hēi黑s&egr***e;色s&ugr***e;塑li&agr***e;o料w&agr***e;i外ké壳zhōng中，z&agr***e;i在yī一g&egr***e;个0.080”（2.03mm）kuān宽chā插cáo槽de的du&igr***e;对c&egr***e;侧。běn本x&igr***e;系li&egr***e;列zhōng中de的měi每g&egr***e;个sh&egr***e;设b&egr***e;i备z&agr***e;i在hóng红w&agr***e;i外&egr***e;r二jí极guǎn管qián前mi&agr***e;n面dōu都yǒu有yī一g&egr***e;个0.040”（1.02mm）kuān宽de的guāng光quān圈。guāng光di&agr***e;n电jīng晶tǐ体guǎn管kāi开guān关fā发shēng生z&agr***e;i在b&ugr***e;不t&ogr***e;u透míng明w&ugr***e;物tǐ体tōng通gu&ogr***e;过cáo槽shí时。Devicesareofferedwith0.275”(6.96mm)leadspacingforPCBoardmounting(OPB820)or24”(609mm)26AWGwireleads(OPB821Z).提供的装置具有0.275”（6.96mm）的导线间距，用于安装pcboard（opb820）或24”（609mm）26AWG导线（opb821Z）。应用：y&igr***e;ng应y&ogr***e;ng用：Non-contactobjectsensing非接触物体感测fēi非jiē接ch&ugr***e;触w&ugr***e;物tǐ体gǎn感c&egr***e;测Assemblylineautomation装配线自动化zhuāng装p&egr***e;i配xi&agr***e;n线z&igr***e;自d&ogr***e;ng动hu&agr***e;化Machineautomation机器自动化jī机q&igr***e;器z&igr***e;自d&ogr***e;ng动hu&agr***e;化Equipmentsafety设备安全sh&egr***e;设b&egr***e;i备ān安quán全Machinesafety机器安全)