Color sireed resistor. Qoondeeyey resistors awoodda nidaamka

The wareeggeedii korontada resistors qabsiga hadda waxaa loo isticmaalaa. Available jira noocyo badan oo kala duwan oo ka mid ah. Si aad u go'aansato in kala duwan oo dhan faahfaahin, waayo, calaamad kasta oo talooyin ah resistor ah. Waxay waxaa lagu calaamadeeyay in siyaabo kala duwan, taas oo ku xidhan bedelidii.

noocyada resistors

Resistor - qalab in uu leeyahay iska caabin korontada ah, oo ay shaqo ugu weyn ee - a circuit yareysey hadda. Warshadaha soo saara noocyada kala duwan ee resistors loo isticmaalay noocyo kala duwan oo qalab farsamo. Ay kala soocidda waa la fuliyay oo siyaabo kala duwan, mid ka mid ah - nooca isbeddelka iska caabin ah. Sida laga soo xigtay soocidda this kala 3 nooc oo resistors:

1. resistors go'an. Waxay suurtogal ma aha in aan macquul ahayn beddelo xaddiga iska caabin ah. By ballan, waxay u qaybsan yihiin laba nooc: codsiyada guud iyo si gaar ah. Arintaan waxaa loo kala qaybiyey on ballan si sax,-impedance sare, a high-voltage iyo inta jeer sare.
2. resistors variable (waxaa loo yaqaannaa qabsiga ah). Awood u leeyihiin in la beddelo iska caabin dhex mara gacanka ku hayaan. On design ah ay aad u kala duwan yihiin. Waxaa jira musqusha u dhaqaaqayo, double, xaafuun (ie on dhidibka isla lagu qalabeeyey laba ama saddex resistor) iyo noocyada kale oo badan.
3. Resistors Trimmer. Waxay khusaysaa keliya inta lagu jiro Mudanayaasha ka mid ah qalabka farsamada. dejinta meydadka ay yihiin heli karaa oo keliya ka yar kaashawiito ah. Waxaa soo saaray tiro badan oo ah beddelka kala duwan ee resistors kuwan. Waxay waxaa loo isticmaalaa in dhammaan noocyada kala duwan ee qalabka korontada iyo elektarooniga ah min kiniin in goobaha warshadaha waaweyn.

Qaar ka mid ah noocyada kala hadlay resistors hoos ku xusan waxaa lagu muujiyey in sawirada.

Habka kala soocidda qaybaha sii kordhaya

Waxaa jira 3 nooc aasaasiga ah ee qaybaha electronic sii kordhaya, Jaha, daabacan iyo micromodules. Waayo, nooc kasta oo rakibaadda yihiin xubno ay, aad bay u kala duwan yihiin labada ee size iyo design. Loo isticmaalo dusha kordhaya resistors, capacitors iyo semiconductors. Waxay waxaa laga heli karaa iyada oo raadad duulaya, in iyaga laga soldered karaa Bannaanka. Sababo la miniaturization ee qalabka elektarooniga ah, habkan waxaa si tartiib ah laga badiyay tacaluqa.
PCB ah qaybo yar oo cabbirkooda la raadad waayo, kabida, in loo isticmaalo guddiga circuit ku daabacan , ama iyaga oo aan. Waayo, kuwaas oo xeryahooda qaybo circuit leeyihiin pads xiriir. taararka lagu daabacay si weyn u caawiyay yareeyo size ee alaabta elektaroonikada ah.

Waayo, daabacaadda iyo kordhaya mikromodulnogo inta badan loo isticmaalaa smd-resistor. Waxay aad u yar in size, fududahay in ay dadka dhexgalaan la qoryaha darandooriga in guddiga circuit ku daabacan iyo micro-modules yihiin. Waxay waxaa laga heli karaa in kala duwan magacaaban iska caabin ah, awood, iyo size. The qalabka elektarooniga ah heerka sare waxaa badanaa loo isticmaalaa smd-resistor.

caabin magaceed iyo resistors awood plated

caabin Standard, ayaa muujiyay in ohms ama megohms kiloomah, waa dabeecad u aasaasiga ah ee resistor ah. qiimaha Sidaas waxa muujiyay in jaantus Bannaanka, waxaa toos loo dulsaaro resistor ah ee code alphanumeric. Sanadihii la soo dhaafay, inta badan waxaa la codsadaa resistors midab-ku suntan.

The caan ugu muhiimsan labaad ee resistor ah - waxa ee dhereg awood, waxaa lagu muujiyay in watts. resistor kasta oo ag marayo hadda ma dhex waa kuleelka, i.e. baaba'aan. Haddii awood this ka badan qiimaha la ogolaan karo ee resistor ka dhigaya burburinta. Under ka sal resistors awooda in Scheme had iyo jeer la joogo, qiimaha this waxaa badanaa laga codsadaa iyo guryaha.

Dulqaadanayn iska caabin magacaaban iyo ku tiirsanaanta heerkulka

Of muhiimadda ugu weyn ay tahay qalad ah, ama weecasho ka qiimo magacaaban, qiyaasay in boqolkiiba. Waa adag tahay in si sax ah loo soo saaro resistor sheegay qiimaha iska caabin ah waxaa looga baahan yahay in ay weecasho ka qiimo loo dejiyay. Baadi waxaa si toos ah lagu tilmaamay on jidhka, inta badan ee foomka of code a garaacid midab leh. Waxaa lagu qiyaasaa boqolkiiba qiimaha caabin magacaaban.

Xaggee jiraan isbedbedelka weyn ee heerkulka, qiimaha iska caabin badan ayaa ku tiirsanaanta heerkulka ama Wehliyaha heerkulka of iska caabin ah, gaabiyey - TCR sida lagu qiyaasay in unugyada qaraabo ah ppm / ° C. TCS muujinaysaa waxa qayb ka mid ah caabbinta magacaaban isbedel resistor haddii heerkulka daarmayaay'e kordhay (hoos) by 1 ° C.

Shardiga circuit resistor sal garaafyada

Marka wareeggeedii barbaro u baahan tahay ilaalin ah GOST 2.728-74 shuruud ku calaamadaha graphic (ASB). resistor ee nooc kasta - waa mm 10x4 leydi. At muuqaallo kale saldhig ay abuuray noocyada kale ee resistors. ASB sokow, a naqshada loo baahan yahay resistors awood wareegi jiray, waxa uu fududeeyaa ay falanqaynta ee dhib. Jadwalka hoose waxaa ku qoran ASB iska caabin ah si joogto ah, taasoo muujinaysa dhereg badan awood.

Hoos waxaa ku qoran sawirka ay muujinaysaa resistors go'an awoodda kala duwan.

sal shuruud garaafyada of resistors variable

ASB resistors variable waxaa laga codsadaa in ay fikradda iyo sidoo kale resistors go'an, sida ay caadiga ah GOST gobolka 2.728-74. Shaxda waxa ay muujineysaa image ee resistors kuwan.

doorsoomayaasha sawir iyo trimmer ayaa hoos lagu muujiyey.

resistors naqshada Standard

heerarka caalamiga ah si loogu yeero caabiga ku magacaaban ee resistor ku soo wareegi jiray iyo resistor waa wax yar oo kala duwan. Rules of sal this, wada jir ah ula noocyo ka mid ah tusaalooyinka waxaa ku cad miiska.

Shaxda waxa ay muujineysaa in magacaabista ah ee nidaamyada of resistors iska caabin ah si joogto ah u sameeyey code ah alphanumeric, marka hore waxaa jira qiimaha tirsi ah iska caabin ah, ka dibna ay cutub oo cabbirka. jirka ugu weyn ee resistor ka aqbalo calaamado digital halkii comma ah si ay u isticmaalaan warqadda haddii ay tahay ohms, ka dibna ku riday R E ama, haddii kiloomah, xarafka K. Marka sixitaanka megohms halkii comma ah waxaa loo isticmaalaa warqadda M.

koodh Color of resistors

koodh Color of resistors waxaa loo sameeyey si ay u fududaato in ay ku riday macluumaad ku saabsan astaamaha farsamo ee ay guryaha. Si arrintan loo sameeyo, ka codsan dhowr strips midabka leh midabyo kala duwan. Just Qoondeeyey strips of 12 midabyo kala duwan lagu sameeyo. Mid kasta oo iyaga ka mid ah waxay leedahay macne gaar ah u gaar ah. code Midabka waxaa laga codsadaa in resistors qarkii ay sax hooseeyo (20%) waxaa laga codsadaa in strip 3. Haddii saxnaanta ee kor ku xusan, iska caabin ah la horeba 4 strips arki karaa.

Marka resistor sax sare waxaa laga codsadaa 5-6 strips. In sixitaanka ka kooban 3-4 strips, labada ugu horeysay matalo qiimaha iska caabin ah, strip saddexaad - taasi waa badan waxa, waxaa lagu dhuftay qiimaha this. band Next waa resistor sax. Marka sixitaanka ka kooban 5-6 deerooyinka 3 waafaqsantahay in ay iska caabin ah ugu horeysay. band Next - waa qodob, strip 5aad dhiganta saxnaanta iyo 6 - Wehliyaha heerkulka.

Si decrypt codes midabka ah resistors ah, waxaa jira loox Lookup.

Resistors smd

Dhulku Buur - tani waa marka faahfaahinta oo dhan waa on board ka raadkaygay wareeg daabacan. Xaaladdan oo kale, ma qodo godad ah ee ka kooban sii kordhaya, waxay soldered in tareenka. Wixii warshadaha rakibaadda this soo saarta tiro balaadhan oo ah smd-qaybood: resistors, dioska-, capacitors, qalabka Semiconductor. xubno Kuwanu waa uga yar iyo teknoolajiyada ku haboon shirka iswada. Isticmaalka smd-qaybood oo si weyn hoos ugu dhigi kartaa size ee alaabta elektaroonikada ah. Dusha Buur korantada ficil bedelay dhammaan noocyada kale.

Iyada oo dhammaan faa'iidooyinka rakibo tixgeliyaa waxa uu leeyahay tiro ka mid ah cillado.

1. guddiga circuit daabacay sameeyey by this technology, cabsi iyo culaysyo lama filaan ah si farsamaysan, maadaama ay tani qaybaha smd-burburay.
2. qaybaha Kuwanu waa ka cabsan kululaado inta lagu guda jiro kabida, sababtoo ah kala duwan oo xoog leh, ay crack karin temeratury. iin Tani waa adagtahay in la ogaado, waxa ay sida caadiga ah dhacdaa inta lagu jiro hawlgalka.

Doorshadan Standard smd-resistor

resistors First-smd yihiin tirada kala duwan. size ugu yar - 0402, wax yar ka badan - 0603. The size ugu orodka smd-resistor - 0805, iyo dheeraad ah - 1008 ee tirada soo socda 1206, oo ugu weyn - 1812 resistors leeyihiin size aad u yar iyo awood aad u yar yahay.

Qoondeeyey smd-resistor by code gaar ah tiro. Haddii size resistor waa 0402, in uu yahay yar, waa ma calaamadeeyay. Resistors tirada kale intaa ku kala duwan yihiin dulqaadka iska caabin magacaaban: 2, 5, 10%. All resistors kuwaas waxaa lagu calaamadeeyay 3 lambar. The koowaad iyo labaad oo iyaga ka mid tuso mantissa, kii saddexaadna - Wehliyaha multiplier a. Tusaale ahaan, xeerka 473 la akhriyo sida R = 47 ∙ March ¹⁰ ohms = 47 ohms.

All resistors, kaas oo ay leeyihiin dulqaad 1% ah, iyo size ka badan 0805, waxaa lagu calaamadeeyay afar lambar. Sida kiiska hore, tirooyinka marka hore muujiyaan heshaan mantissa, iyo factor waxay muujinaysaa lambar ee la soo dhaafay. Tusaale ahaan, xeerka 1501 waxay u taagan tahay si: R = 150 ∙ January ¹⁰ = 1500 ohms = 1.5 kOhm. Sidoo kale, u akhri inta kale ee code ka.

Fikradda ugu fudud

Doorshadan, saxda ah ee nidaamyada of resistors iyo xubno kale - shuruudaha aasaasiga ah ee heerka gobolka ee qaabeynta alaabta elektaroonikada ah iyo korontada. Waxaa kamida xeerar ku saabsan Sharciga Calaamooyinka resistors, capacitors, inductors iyo waxyaalo kale oo wareeg. In jaantuska muujinaysaa oo keliya ma aha resistor ama element kale circuit, laakiin sidoo kale ay iska caabin magacaaban, iyo xoogga, iyo capacitors - danab qalliinka. Hoos waxaa ku qoran tusaale ka mid ah fikrad fudud waxyaabaha loogu talagalay by calanka.

Aqoonta dhan sal graphic caadiga ah iyo reading of codes alphanumeric in xubno ka mid ah nidaamka ka dhigi doonaa fududahay in la fahmo mabda'a hawlgalka Bannaanka. Maqaalkani waxa uu ka hadlayaa resistors keliya iyo xubno circuit badan.