Color Coding resistor. Rokuti simba resistors vanoronga

Yemagetsi matunhu kuti uno kugadziridzwa resistors anoshandiswa. Available dzakawanda dzakasiyana siyana navo. Kusarudza-siyana zvose details, rimwe chiyamuro chiratidzo resistor. Ivo chiratidzo dzakasiyana, zvichienderana nadzurudzo.

marudzi resistors

Resistor - zano kuti ane chinhu zvemagetsi nemishonga, ayo chikuru nerevane - kuitika vakaomerwa redunhu. Indasitiri unobereka-siyana resistors kureva zvakasiyana-siyana unyanzvi mano. kupatsanura kwavo rinoitwa munzira dzakasiyana, mumwe wavo - hunhu kuchinja kurwisa. Maererano kupatsanura ichi chinosiyanisa 3 marudzi resistors:

1. Fixed resistors. Ivo hazvibviri pamadiro kushandura uwandu kurwisa. By paakagadzwa, vari rakakamurwa mhando mbiri: mukuru uye yakananga mafomu. Ekupedzisira vakakamurwa pamusoro kugadzwa zvakarurama, mukuru-impedance, mukuru-voltage uye yakakwirira maitikiro.
2. Shanduka resistors (vanodanwa kuchigadzirisa). Kukwanisa kushandura kurwisa kuburikidza nokudzora pamupinyi. On namaapuro zvakasiyana chaizvo. Pane yokugezera ane chinja, kaviri, katatu (kureva musi iwoyo akabatana ari akashongedzerwa maviri kana matatu resistor) uye dzimwe mhando dzakawanda.
3. Trimmer Resistors. Pachirehwa chete panguva setup ari michina mudziyo. kuisa miviri vari kuwanikwa chete pasi sikurudhiraivha. Yakabereka vazhinji akasiyana okunatsiridza ose resistors izvi. Ivo zvinoshandiswa ose zvemagetsi uye zvemagetsi kubvira mapiritsi kune huru maindasitiri zvivako.

Dzimwe mhando dzinokurukurwa resistors ataurwa pazasi vanoonekwa vari pamifananidzo.

The kupatsanura nzira vanomhanyisa yenhengo

Pane 3 marudzi inokosha vanomhanyisa mavideo zvinoriumba, vakatasva, yakadhindwa uye micromodules. Nokuti mumwe mhando naro vari zvinhu zvayo, ivo siyana zvikuru zvose kukura uye magadzirirwo. Kushandiswa pamusoro vanomhanyisa resistors, capacitors uye semiconductors. Ivo dziripo ne kubhururuka anotungamirira, kuti vanogona soldered kupinda mudunhu. Nokuda miniaturization kwezvinhu zvemagetsi, nzira iyi zvishoma nezvishoma kurasikirwa nemusoro.
Pcb akashandisa duku kadikidiki zvikamu pamwe zvinoisa kuti pokunamatidza kune wakadhindwa redunhu puranga , kana asina. Nokuti yeimwe ava redunhu zvikamu aizivana Mapedhi. Akadhindwa wiring yekudyidzana akabatsira kuderedza kukura zvigadzirwa zvigadzirwa.

Nokuti Kudhinda uye kuwedzera mikromodulnogo aiwanzoshandisa smd-resistor. Ndivo chaizvo mupfupi, nyore kuti nokusangana ane zvigwagwagwa ari papepa redunhu bhodhi uye Micro-modules. Ivo zvinowanikwa zvakasiyana chezita nemishonga, simba, uye kukura. The zvigadzirwa zvemagetsi zvemhando yepamusoro Anonyanyowanika kushandiswa smd-resistor.

Chezita nemishonga uye kuifukidza simba resistors

Standard nemishonga, chinoratidzwa ohms kana megohms kiloomah, icho chinhu chinokosha chakanangana resistor. ukoshi Izvi zvinoratidzwa mudunhu diagrams, zvinonzi aishanda zvakananga mumwe resistor mu alphanumeric romutemo. Mumakore achangopfuura, kazhinji rakaiswa ruvara-coded resistors.

Chinonyanya kukosha hunhu yechipiri ine resistor - nayo kuti simba nounzenza, izvozvo runoratidzwa watts or. Chero resistor nokuisa kuitika kuburikidza zviri pakutsamwisana i.e. dissipates. Kana simba iri akapfuudza bvumidzwa kukosha resistor hunoronga kuparadzwa. Under mureza notation simba resistors muna Scheme dzinenge nguva dzose aripo, ukoshi uyu kazhinji kuiswa yayo dzimba.

Kushivirira chezita nemishonga uye ayo pazviri tembiricha

Zvikuru ndiye kukanganisa, kana yakatsauka kubva chezita kukosha, akayera mu kubva muzana. Hazvibviri chaizvo pave vaizviti resistor pamwe nemishonga ukoshi anofanirwa kuva yakatsauka kubva akafanorongerwa ukoshi. Kukanganisa chinoratidzirwa zvakananga pamusoro muviri, kazhinji muchimiro bumbiro kurohwa chitsvuku. Zvinofungidzirwa kuva chikamu chezvinhu aizviti nemishonga ukoshi.

Apo pane guru nokufamba ari tembiricha, rebei nemishonga ukoshi ane tembiricha nedoro kana tembiricha coefficient kurwisa, abbreviations - TCR sezvo akayera mune hama vamapoka ppm / ° C. TCS inoratidza chii chikamu aizviti kurwisa zviri resistor kuchinja kana ambient tembiricha kuwedzera (zvinoderedza) 1 ° C.

Zvimiso graphical notation resistor redunhu

Kana uchiwana matunhu kunoda kuchengetwa GOST 2.728-74 zvimiso pamusoro yakajeka zviratidzo (ASB). The resistor chero mhando - iri rectangle 10x4 mm. At chawo Graphics vakasikwa kuti mamwe marudzi resistors. Kunze ASB, mumwe rokuti zvaida simba resistors mudunhu, izvozvo hwezvekukurukurirana ongororo yayo nokuda troubleshooting. In patafura pazasi akarongwa pasi ASB kugara nemishonga, zvichiratidza simba nounzenza.

Below mufananidzo unoratidza yakatarwa resistors kwesimba zvakasiyana.

Zvimiso graphical notation pamusoro shanduka resistors

ASB shanduka resistors anechekuita pfungwa uyewo wakaiswa resistors, napaduku mureza GOST 2.728-74. Tafura rinoratidza mufananidzo resistors izvi.

The mufananidzo variables uye trimmer vanoonekwa pazasi.

Standard izita resistors

nemitemo International kureva aizviti kurwisa zviri resistor mudunhu uye resistor chinguva zvakasiyana. Mitemo notation ichi, pamwe chete mimwe mienzaniso vanoonekwa vari patafura.

Tafura rinoratidza kuti zita rokuti iri namano kugara nemishonga resistors akaita alphanumeric code, tanga pane nhamba kukosha kurwisa, ipapo zviumbu yakayerwa. The chikuru mutumbi resistor unogamuchirwa munyika digitaalinen signage pachinzvimbo koma kushandisa tsamba kana ohms, ipapo akaisa R E kana, kana kiloomah, tsamba K. Kana zvichiratidza megohms panzvimbo koma rinoshandiswa tsamba M.

Color Coding pamusoro resistors

Color Coding pamusoro resistors yakaitwa kuti zvive nyore kuisa mashoko pamusoro hwokugadzira unhu pokugara yavo. Kuti aite izvi, shandisa vanoverengeka ruvara micheka mavara akasiyana. Just rokuti micheka zvakagadzirwa mavara 12 siyana. Mumwe nomumwe wavo ane yayo zvazvinoreva. Ruvara remitemo rinoshandisirwa resistors kumucheto panguva yayo pasi zvakarurama (20%) rinoshandiswa wonamatidza 3. Kana rakarurama pamusoro, ari kurwisa anogona kuonekwa kare 4 rinoparadza.

Apo mukuru nemazvo resistor rinoshandisirwa 5-6 rinoparadza. In chiratidzo chine 3-4 rinoparadza, vaviri vokutanga dzinomirira kurwisa mutengo, wechitatu ubvise - ndiko multiplier, zvinonzi kane kukosha ichi. Next bhendi ndiyo zvakarurama resistor. Kana zvichiratidza unotora 5-6 dzinovhunura 3 inoenderana wokutanga nemishonga. Next bhendi - ari chinhu, 5th ubvise anoenderana kururama uye 6th - tembiricha COEFFICIENT.

Kuti decrypt ruvara Codes ose resistors, pane Lookup pamatafura.

Resistors SMD

Pemvura Mount - iyi apo zvose vari mungarava kubva papepa redunhu makwara. Muchiitiko chino, regai vanochera makomba vanomhanyisa zvinoriumba, vari soldered kuti Makwara. Nokuti ichi chokugadza indasitiri unobereka zvakawanda smd-zvinoriumba: resistors, diodes, capacitors, semiconductor namano. zvinhu izvi iduku zvikuru uye yemazuva ano akakodzera kuti zvoga gungano. Kushandisa smd-zvinoriumba anogona kuderedza kukura zvigadzirwa zvigadzirwa. Pamusoro pegomo Electronics kushanda kwaidarika zvimwe zvipenyu zvose.

With zvose zvakanakira ari vaiona chokugadza ine nhamba zvainovhiringidzawo.

1. Akadhindwa redunhu bhodhi chakaitwa ichi ano, kutya uye dzimwe zvokuimba kuvhunduka mitoro, sezvo iri smd-wakaremara zvinoriumba.
2. zvinoriumba izvi vanotya overheating panguva pokunamatidza nokuda simba kusiyana, vanogona kutsemuka temeratury. kuremara Izvi zvakaoma kuona, zvinowanzoda kunoitika munguva oparesheni.

Standard rokuti smd-resistor

First-smd resistors inosiyana. Zviduku saizi - 0402, zvishoma - 0603. The kupfuura nokumhanya smd-resistor saizi - 0805, uye zvakawanda - 1008, zvinotevera hukuru 1206 uye chikuru - 1812 resistors kwazvo diki kukura uye simba shoma chaizvo.

Rokuti smd-resistor pedyo kusanganiswa romutemo chaiyo. Kana resistor saizi iri 0402, kuti iduku, haina mavara. Resistors dzimwe hukuru anowedzera zvakasiyana chezita nemishonga kushivirira: 2, 5, 10%. resistors zvose izvi anozivikanwa ne 3 digits. Rokutanga uye rechipiri vavo vanoratidza mantissa, wechitatu - a multiplier coefficient. Somuenzaniso, bumbiro remitemo 473 iri kuverenga sezvo R = 47 ∙ March ¹⁰ ohms = 47 ohms.

resistors All, vane 1% kushivirira, uye kukura pamusoro 0805, anozivikanwa ne digits mana. Sezvaiitwa yapfuura nyaya, nenhamba okutanga anoratidza mantissa sangano, uye chinhu rinoratidza wokupedzisira digit. Somuenzaniso, bumbiro remitemo 1501 anomira saka: R = 150 ∙ January ¹⁰ = 1500 ohms = 1.5 kOhm. Saizvozvowo, verenga vamwe bumbiro.

The nyore Pfungwa

Yakarurama rokuti ari namano resistors uye zvimwe zvinhu - inokosha chinodiwa ehurumende mitemo pamasikiro zvigadzirwa uye magetsi zvigadzirwa. It anorasira mitemo pamusoro zviratidzo resistors, capacitors, inductors nezvimwe vematunhu zvinoriumba. Muna dhayagiramu anoratidza kwete chete resistor kana mamwe redunhu maatomu akafanana, asi zvaro chezita nemishonga, uye simba, uye nokuda capacitors - the uchishandisa voltage. Below muenzaniso nyore pfungwa okunze varehwa mureza.

Zivo zvose kwakajairika hwakajeka notation uye pakuverenga alphanumeric Codes kuti zvinhu zano richazvibudisa nyore kunzwisisa musimboti mudzimu redunhu. Nyaya ino inokurukura chete resistors uye dunhu zvinhu zvizhinji.