{"id":2476,"date":"2025-05-12T17:49:50","date_gmt":"2025-05-12T09:49:50","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=2476"},"modified":"2025-05-12T17:51:27","modified_gmt":"2025-05-12T09:51:27","slug":"common-compenents-on-a-pcba","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/","title":{"rendered":"Almindelige komponenter p\u00e5 et PCBA"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Indholdsfortegnelse<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#What_is_PCBA\" >Hvad er PCBA?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#What_are_the_common_components_on_the_PCB\" >Hvad er de almindelige komponenter p\u00e5 printkortet?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#1Passive_components\" >1. passive komponenter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#2Semiconductor_devices\" >2. halvlederenheder<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#3Integrated_Circuits\" >3. integrerede kredsl\u00f8b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#4Other_Important_Components\" >4. Andre vigtige komponenter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#What_certifications_are_required_for_components\" >Hvilke certificeringer er n\u00f8dvendige for komponenter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#The_role_of_common_components_on_the_PCB\" >De almindelige komponenters rolle p\u00e5 printkortet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#How_to_quickly_identify_PCB_components\" >S\u00e5dan identificerer du hurtigt PCB-komponenter<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#PCB_on_the_common_component_symbols\" >PCB p\u00e5 de f\u00e6lles komponentsymboler<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#Character_Circuit_Diagram_Symbols\" >Symboler for karakterkredsl\u00f8b<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#1Basic_electrical_symbols\" >1. grundl\u00e6ggende elektriske symboler<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#2Control_device_symbols\" >2. symboler for kontrolenheder<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#3Measuring_Instrument_Symbols\" >3. Symboler for m\u00e5leinstrumenter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#4Motor_and_actuator\" >4. motor og aktuator<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#5Signal_indicating_device\" >5. signalindikerende enhed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#6Special_Component_Symbols\" >6.S\u00e6rlige komponent-symboler<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#7Wiring_and_connecting_devices\" >7. Ledninger og tilslutningsanordninger<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#PCB_component_layout_and_wiring_design\" >PCB-komponentlayout og ledningsdesign<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#1Basic_principles_of_component_layout\" >1. grundl\u00e6ggende principper for komponentlayout<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#2Professional_layout_details\" >2. Detaljer om professionelt layout<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#3Intelligent_wiring_strategy\" >3. Intelligent ledningsstrategi<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#How_to_do_PCBA_fabrication\" >S\u00e5dan laver du PCBA-fabrikation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#PCBA_Application_Areas\" >PCBA-anvendelsesomr\u00e5der<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/#Future_Development_Trends\" >Fremtidige udviklingstendenser<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_PCBA\"><\/span>Hvad er PCBA?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Det fulde navn p\u00e5 PCBA er Printed Circuit Board Assembly, dvs. samling af printkort, som henviser til samling af elektroniske komponenter, stik, plug-ins, digitale logiske gates, mikrokontrolenheder osv. p\u00e5 et printkort og derefter en r\u00e6kke processer som lodning og tilslutning for at g\u00f8re det til et komplet funktionelt modul i et elektronisk produkt.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_common_components_on_the_PCB\"><\/span>Hvad er de almindelige komponenter p\u00e5 printkortet?<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Passive_components\"><\/span>1. passive komponenter<span class=\"ez-toc-section-end\"><\/span><\/h3><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Capacitor.jpg\" alt=\"Kondensator\" class=\"wp-image-2477\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Capacitor.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Capacitor-300x201.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><ol class=\"wp-block-list\"><li><strong>Modstande (<a href=\"https:\/\/www.topfastpcb.com\/da\/blog\/the-resistor\/\">Modstand<\/a>)<br><\/strong>Funktion: Begr\u00e6ns den aktuelle st\u00f8rrelse, sp\u00e6ndings-shunt<br>Almindelige typer: kulfilmmodstande (\u00f8konomiske og praktiske), metalfilmmodstande (h\u00f8jere pr\u00e6cision), tr\u00e5dviklede modstande (h\u00f8jeffektsapplikationer), chipmodstande (SMD, moderne mainstream)<br>Identifikationsteknikker: farveringskode:4-6 farveringe for at angive modstandsv\u00e6rdi og n\u00f8jagtighed, chipkode: 3-4 cifre for at angive modstandsv\u00e6rdien<br>Symbol for kredsl\u00f8b: Rektangul\u00e6r kasse eller b\u00f8lget linje<\/li>\n\n<li><strong>Kondensator (<a href=\"https:\/\/www.topfastpcb.com\/da\/blog\/how-to-test-capacitors\/\">Kondensator<\/a>)<br><\/strong>Funktion: energilagring, filtrering, kobling<br>Mainstream-typer: elektrolytkondensatorer (stor kapacitet, polaritet), keramiske kondensatorer (gode h\u00f8jfrekvensegenskaber), tantal-kondensatorer (lille st\u00f8rrelse, h\u00f8j stabilitet), filmkondensatorer (h\u00f8j pr\u00e6cision)<br>M\u00e6rkning af kredsl\u00f8b: \"C\"-begyndelse (s\u00e5som C1, C2)<br>Udv\u00e6lgelsespunkter: kapacitansv\u00e6rdi, modstandssp\u00e6ndingsv\u00e6rdi, temperaturkoefficient<\/li>\n\n<li><strong>Induktor (Inductor)<br><\/strong>Funktion: filtrering, energilagring, str\u00f8mstabilisering<br>Hovedkategorier: hule induktorer (h\u00f8jfrekvensapplikationer), ferritinduktorer (anti-interferens), chipinduktorer (pladsbesparende), effektinduktorer (h\u00f8jstr\u00f8m)<br>M\u00e6rkning af kredsl\u00f8b: \"L\"-begyndelse (f.eks. L1, L2)<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Semiconductor_devices\"><\/span>2. halvlederenheder<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Diode (Diode)<br><\/strong>Funktion: ensrettet ledningsevne, sp\u00e6ndingsstabilisering, lysemitterende<br>Almindelige typer: ensretterdioder (f.eks. 1N4007), sp\u00e6ndingsregulatordioder (f.eks. 1N4742), Schottky-diode (lavt fald), LED (lysdiode), TVS-dioder (antistatisk)<br>Kredsl\u00f8bsm\u00e6rkning: \"D\" begyndelse<\/li>\n\n<li><strong>Transistor (Transistor)<br><\/strong>Funktion: signalforst\u00e6rkning, skiftekontrol<br>Hovedtyper: transistor (BJT), felteffektr\u00f8r (MOSFET), IGBT (high-power switch)<br>Pakke: TO-92 (lavt str\u00f8mforbrug), TO-220 (mellemstort str\u00f8mforbrug), SOT-23 (SMD)<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3Integrated_Circuits\"><\/span>3. integrerede kredsl\u00f8b<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Analog IC<br><\/strong>Operationsforst\u00e6rkere, sp\u00e6ndingsregulatorer, datakonvertere (ADC\/DAC)<\/li>\n\n<li><strong>Digitale IC'er<br><\/strong>Mikrocontroller (MCU)<br>Hukommelse (Flash, RAM), logiske gate-kredsl\u00f8b<\/li>\n\n<li><strong>IC'er med blandet signal<br><\/strong>Tr\u00e5dl\u00f8se transceiverchips, sensor-interface-IC'er<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4Other_Important_Components\"><\/span>4. Andre vigtige komponenter<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Tilslutninger<br><\/strong>Pin header\/hunstik, USB\/HDMI-gr\u00e6nseflade, board-to-board-stik<\/li>\n\n<li><strong>Beskyttelseskomponenter<br><\/strong>Sikringer, varistorer, gasudladningsr\u00f8r<\/li>\n\n<li><strong>Elektromekaniske komponenter<br><\/strong>Rel\u00e6, kontakt, summer<\/li><\/ol><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_certifications_are_required_for_components\"><\/span>Hvilke certificeringer er n\u00f8dvendige for komponenter<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Specifikke certificeringskrav til forskellige typer af komponenter<br>Integrerede kredsl\u00f8b:ISO\/IEC 27001 Information Security Management System-certificering er p\u00e5kr\u00e6vet for at sikre, at design og fremstilling er i overensstemmelse med de relevante standarder.<br>Kondensatorer og modstande:RoHS-certificering er p\u00e5kr\u00e6vet for at sikre, at de ikke indeholder farlige stoffer.<br>Stikforbindelser:UL-certificering eller anden elektrisk sikkerhedscertificering er p\u00e5kr\u00e6vet for at garantere sikkerheden under brug.<br>LED-komponenter: Sikkerheds- og pr\u00e6stationscertificeringer er n\u00f8dvendige for at sikre overensstemmelse i belysnings- og displayapplikationer.<br>Halvlederenheder: skal v\u00e6re AEC-Q100-certificeret til brug i bilelektronik.<br>Sensorer: branchespecifikke certificeringer kan v\u00e6re p\u00e5kr\u00e6vet, f.eks. ISO 13485 for medicinsk elektronik.<br>Disse certificeringer sikrer ikke kun produktets kvalitet og sikkerhed, men hj\u00e6lper ogs\u00e5 produktet med at overholde reglerne p\u00e5 markedet.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Inductor.jpg\" alt=\"Induktor\" class=\"wp-image-2478\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Inductor.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Inductor-300x201.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_role_of_common_components_on_the_PCB\"><\/span>De almindelige komponenters rolle p\u00e5 printkortet<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>1. modstand (modstand)<br><\/strong>Kernefunktioner: str\u00f8mbegr\u00e6nsning, sp\u00e6ndingsfordeling, signalregulering<br>Typiske anvendelser: leverer den passende forsp\u00e6nding til transistoren, i sensorkredsl\u00f8bet for at justere signalniveauet, som str\u00f8mbegr\u00e6nsende LED-beskyttelseskomponenter<br><strong>2. kondensator<br><\/strong>Kernefunktioner: energilagring, st\u00f8jfiltrering, signalkobling<br>Typiske anvendelser: filtrering af str\u00f8mforsyningskredsl\u00f8b (for at eliminere krusninger), signalkobling i lydkredsl\u00f8b, afkobling af str\u00f8mstik til digitale IC'er<br><strong>3. induktor<br><\/strong>Kernefunktioner: energilagring, h\u00f8jfrekvent filtrering, str\u00f8mstabilisering<br>Typiske anvendelser: energikonvertering i switching-str\u00f8mforsyninger, impedanstilpasning i RF-kredsl\u00f8b, de vigtigste komponenter i EMI-filtre<br><strong>4. diode (diode)<br><\/strong>Kernefunktioner: envejsledningsevne, sp\u00e6ndingsregulering, kredsl\u00f8bsbeskyttelse<br>Typiske anvendelser: AC til DC ensretterkredsl\u00f8b, oversp\u00e6ndingsbeskyttelse TVS-diode, for at forhindre omvendt str\u00f8mbeskyttelseskredsl\u00f8b<br><strong>5. transistor (transistor)<br><\/strong>Kernefunktioner: signalforst\u00e6rkning, elektronisk omskiftning, str\u00f8mstyring<br>Typiske anvendelser: forst\u00e6rkning af lydsignaler, digitale logiske kredsl\u00f8b, styring af motordrev<br><strong>6. integreret kredsl\u00f8b (IC)<br><\/strong>Kernefunktioner: realisering af komplekse elektroniske funktioner<br>Typiske anvendelser: mikrocontrollere (systemkontrolkerne), operationsforst\u00e6rkere (signalbehandling), str\u00f8mstyrings-IC'er<br><strong>7. elektromekaniske komponenter<br><\/strong>Kontakter: kontrol af t\u00e6nd\/sluk-kredsl\u00f8b<br>Stik: elektrisk forbindelse mellem moduler<br>Rel\u00e6: lille str\u00f8m til at styre stor str\u00f8m<br>Indikering og alarmkomponenter<br>LED: visuel indikation af arbejdsstatus<br>Summer: h\u00f8rbar alarmindikation<br><strong>8. Beskyttelseskomponenter<br><\/strong>Sikring: overstr\u00f8msbeskyttelse<br>Varistor: Beskyttelse mod oversp\u00e6nding<br>Gasudladningsr\u00f8r: lynbeskyttelse<br><strong>9.Sensorkomponenter<br><\/strong>Temperatursensor: milj\u00f8overv\u00e5gning<br>Fotoresistor:Registrering af lysintensitet<br>Accelerometer: Registrering af bev\u00e6gelse<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_quickly_identify_PCB_components\"><\/span>S\u00e5dan identificerer du hurtigt PCB-komponenter<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Se p\u00e5 m\u00e6rkningen: bogstaver + tal ved siden af komponentnummereringen<br>Se p\u00e5 pakken: forskellige komponenter har en typisk pakkeform<br>M\u00e5leparametre: Brug et multimeter til at m\u00e5le de grundl\u00e6ggende egenskaber for<br>Tjek oplysningerne: i henhold til specifikationerne for modelforesp\u00f8rgslen<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/LED.jpg\" alt=\"LED\" class=\"wp-image-2479\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/LED.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/LED-300x201.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCB_on_the_common_component_symbols\"><\/span>PCB p\u00e5 de f\u00e6lles komponentsymboler<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PCB p\u00e5 de almindelige komponentsymboler omfatter modstand (R), kapacitans (C), induktans (L), integrerede kredsl\u00f8b (IC), dioder (D), transistorer (Q), transformatorer (T) og s\u00e5 videre.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Character_Circuit_Diagram_Symbols\"><\/span>Symboler for karakterkredsl\u00f8b<span class=\"ez-toc-section-end\"><\/span><\/h3><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Basic_electrical_symbols\"><\/span>1. grundl\u00e6ggende elektriske symboler<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li><strong>Str\u00f8mforsyningskategori<br><\/strong>AC: symbol for vekselstr\u00f8m (b\u00f8lget linje)<br>DC: j\u00e6vnstr\u00f8mssymbol (lige linje + stiplet linje)<br>G: generator-symbol (cirkel med G)<\/li>\n\n<li><strong>Beskyttelsesanordninger<br><\/strong>FU: Sikring (rektangul\u00e6rt centerbrud)<br>FF: Falling fuse (rektangel med skr\u00e5streg)<br>FV: Sp\u00e6ndingsbegr\u00e6nsende beskyttelsesanordning (rektangel med pil)<\/li><\/ol><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Control_device_symbols\"><\/span>2. symboler for kontrolenheder<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li><strong>Skift kategori<br><\/strong>QS: Afbryderkontakt (skr\u00e5streg afbryder)<br>QF: Kredsl\u00f8bsafbryder (med udl\u00f8sersymbol)<br>SB: Trykknapkontakt (halvcirkelforbindelse)<\/li>\n\n<li><strong>Rel\u00e6er<br><\/strong>KA: \u00d8jeblikkeligt rel\u00e6 (med lyn i kassen)<br>KT: Tidsrel\u00e6 (med ur i kassen)<br>KH: Termisk rel\u00e6 (med b\u00f8lgede linjer i boksen)<\/li><\/ol><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3Measuring_Instrument_Symbols\"><\/span>3. Symboler for m\u00e5leinstrumenter<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li>Grundl\u00e6ggende m\u00e5ler<br>PA: amperemeter (A i cirkel)<br>PV: Voltmeter (V i cirkel)<br>PPF: Effektfaktorm\u00e5ler (cos\u03c6 i cirkel)<\/li>\n\n<li>M\u00e5ling af elektricitet<br>PJ: Aktiv m\u00e5ler (Wh i cirkel)<br>PJR: m\u00e5ler for reaktiv effekt (VARh i cirkel)<\/li><\/ol><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4Motor_and_actuator\"><\/span>4. motor og aktuator<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li><strong>Elektrisk motor<br><\/strong>M: Generelt symbol for elmotor (M i cirkel)<br>MS: Synkronmotor (dobbelt cirkel)<br>MA: Asynkronmotor (med skr\u00e5streg i cirkel)<\/li>\n\n<li><strong>Aktuator<br><\/strong>YV: Magnetventil (rektangel med b\u00f8lget linje)<br>YM: Motoriseret ventil (rektangel med gear)<br>YE: elektrisk aktuator (rektangel med pil)<\/li><\/ol><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5Signal_indicating_device\"><\/span>5. signalindikerende enhed<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li><strong>Indikatorlampe<br><\/strong>HR: r\u00f8dt lys (solid cirkel med H)<br>HG: gr\u00f8nt lys (fast cirkel med G)<br>HY: Gult lys (solid cirkel med Y)<\/li>\n\n<li><strong>Signalenhed<br><\/strong>HA: Akustisk signal (hornsymbol)<br>HS: Lyssignal (lynsymbol)<br>HP: Lysskilt (rektangel med tekst indeni)<\/li><\/ol><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6Special_Component_Symbols\"><\/span>6.S\u00e6rlige komponent-symboler<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li><strong>Sensortype<br><\/strong>BL: V\u00e6skeniveausensor (trapezformet med b\u00f8lgede linjer)<br>BT: Temperatursensor (rektangel med termometer)<br>BV: hastighedssensor (rektangel med omdrejningst\u00e6ller)<\/li>\n\n<li><strong>Effektelektronik<br><\/strong>UR: Thyristor-ensretter (trekantet med gate)<br>BRUGERGR\u00c6NSEFLADE: Inverter (rektangel med tovejs-pil)<br>UF: Inverter (rektangel med frekvenssymbol)<\/li><\/ol><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7Wiring_and_connecting_devices\"><\/span>7. Ledninger og tilslutningsanordninger<span class=\"ez-toc-section-end\"><\/span><\/h4><ol class=\"wp-block-list\"><li><strong>Forbindelsesenheder<br><\/strong>XT: Klemmeblok (cirkul\u00e6rt arrangement af punkter)<br>XB: Forbindelsesflige (rektangul\u00e6re forbindelsesledninger)<br>XP\/XS: stikd\u00e5se (konkavt stumpsymbol)<\/li>\n\n<li><strong>Samleskinne-system<br><\/strong>W: DC-samleskinne (tyk massiv ledning)<br>WV: mini-samleskinne for sp\u00e6nding (stiplet linje)<br>WCL: lukning af lille samleskinne (med kontaktsymbol)<br>At beherske disse symboler er grundlaget for at forst\u00e5 kredsl\u00f8bsskemaer, og med erfaring vil du hurtigt kunne fortolke en r\u00e6kke komplekse elektriske tegninger.<\/li><\/ol><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Transistor.jpg\" alt=\"Transistor\" class=\"wp-image-2480\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Transistor.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Transistor-300x201.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCB_component_layout_and_wiring_design\"><\/span>PCB-komponentlayout og ledningsdesign<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Basic_principles_of_component_layout\"><\/span>1. grundl\u00e6ggende principper for komponentlayout<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Strategisk prioritet Layout<br><\/strong>Arranger f\u00f8rst kerne-IC'en og de store komponenter (f.eks. processorer, FPGA)<br>Arranger derefter vigtige perifere kredsl\u00f8b (urkredsl\u00f8b, str\u00f8mmoduler)<br>Anbring til sidst sm\u00e5 passive komponenter (modstande, kondensatorer osv.)<\/li>\n\n<li><strong>Layout til optimering af signalflow<br><\/strong>I henhold til den skematiske signalstr\u00f8mningsretning (input \u2192 behandling \u2192 output) sekvenslayout<br>Kritiske signalveje minimeres (is\u00e6r for h\u00f8jhastighedssignaler)<br>F\u00f8lsomme signaler v\u00e6k fra interferenskilder (f.eks. switching power supply)<\/li>\n\n<li><strong>Symmetri \u00e6stetik og funktionel balance<br><\/strong>Spejlsymmetrisk layout for de samme funktionsmoduler<br>Ensartet fordeling af komponenter p\u00e5 printet (for at undg\u00e5 v\u00e6gtsk\u00e6vhed)<br>Afbalanceret varmeafledning og elektromagnetisk kompatibilitet.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2Professional_layout_details\"><\/span>2. Detaljer om professionelt layout<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Funktionelt modul\u00e6rt layout<br><\/strong>Streng opdeling af digitale\/analoge kredsl\u00f8b (anbefalet afstand &gt;5 mm)<br>Separat isolering til RF-kredsl\u00f8b<br>Centraliseret placering af str\u00f8mforsyningsmoduler<\/li>\n\n<li><strong>Specifikation af sikkerhedsafstand<br><\/strong>Komponenter fra pladekanten \u2265 5 mm (for at forhindre beskadigelse af behandlingen)<br>Mellem chipkomponenterne \u2265 2 mm (let at reparere)<br>Mellem h\u00f8jsp\u00e6ndingskomponenter \u2265 8 mm (sikkerhedskrav)<\/li>\n\n<li><strong>S\u00e6rlig behandling af komponenter<br><\/strong>Varmeproducerende komponenter:<br>Ensartet fordeling for at undg\u00e5 hot spot-koncentration<br>Holdes v\u00e6k fra varmef\u00f8lsomme komponenter (f.eks. elektrolytiske kondensatorer).<br>Tilf\u00f8j k\u00f8leplader, hvis det er n\u00f8dvendigt<br>H\u00f8jfrekvente komponenter:<br>S\u00e5 t\u00e6t p\u00e5 midten af br\u00e6ttet som muligt<br>Hold dig v\u00e6k fra I\/O-porte<br>Brug beskyttelse af jordsk\u00e6rmen<\/li>\n\n<li><strong>Arrangement af afkoblingskondensator<br><\/strong>0,1 \u03bcF kondensator p\u00e5 hver str\u00f8mstift<br>Layoutafstand &lt;3 mm (ideelt set monteret p\u00e5 bagsiden)<br>N\u00e5r flere kondensatorer er forbundet parallelt, er de arrangeret fra mindste til st\u00f8rste kapacitet.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3Intelligent_wiring_strategy\"><\/span>3. Intelligent ledningsstrategi<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Prioriter de vigtigste signaler<br><\/strong>Clock-signaler:<br>Tykkere linjebredde (normalt 8-12 mil)<br>Fuldt medf\u00f8lgende jord<br>Undg\u00e5 h\u00f8jresving<br>Differentielle signaler:<br>Strengt lige lang (fejl &lt;50 mil)<br>Parallel tilpasning<br>Impedanstilpasning<\/li>\n\n<li><strong>Ledningsteknikker med h\u00f8j t\u00e6thed<br><\/strong>Start fra BGA og andre komplekse enheder<br>Rute gennem de t\u00e6tteste omr\u00e5der f\u00f8rst<br>Brug 45\u00b0 diagonal overgang<\/li>\n\n<li><strong>Lagdelt routing-plan<br><\/strong>Lagvis stabling anbefales:<br>\u00d8verste lag: kritiske signaler<br>Indre lag 1: komplet jordplan<br>Indre lag 2: Effektplan<br>Det nederste lag: F\u00e6lles signaler<br>Anbefaling af h\u00f8jfrekvente signaler:<br>Justering af b\u00e5ndlinje (indre lag)<br>Undg\u00e5 zoner med tv\u00e6rg\u00e5ende split<\/li><\/ol><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_do_PCBA_fabrication\"><\/span>S\u00e5dan laver du PCBA-fabrikation<span class=\"ez-toc-section-end\"><\/span><\/h2><p>PCBA-fremstilling er en kompleks og delikat proces, der kr\u00e6ver specialiseret viden og udstyr. F\u00f8lgende er de generelle trin for PCBA-produktion:<br><strong>1. kredsl\u00f8bsdesign: <\/strong>i henhold til de funktionelle krav til elektroniske produkter, design af kredsl\u00f8bsdiagrammer og brug af professionel EDA-software, s\u00e5som Altium Designer osv.<br><strong>2. fremstilling af printkort: <\/strong>design af kredsl\u00f8bsdiagrammet trykt produktion til et solidt kredsl\u00f8bskort, som normalt skal gennem fotolitografi, \u00e6tsning, boring og andre trin.<br><strong>3.komponent indk\u00f8b: <\/strong>i henhold til kredsl\u00f8bsdesignet, indk\u00f8b af de relevante elektroniske komponenter, herunder modstande, kondensatorer, induktorer, dioder, transistorer, integrerede kredsl\u00f8b og s\u00e5 videre.<br>44Komponentsamling: Indk\u00f8b af komponenter i overensstemmelse med kravene til kredsl\u00f8bsdesign p\u00e5 printkortet, som normalt skal udf\u00f8res via mont\u00f8ren og andet specialudstyr.<br><strong>5.svejsning: <\/strong>komponenter og svejsning af printkort, herunder b\u00f8lgelodning, reflow-lodning og andre metoder.<br><strong>6.Test:<\/strong> Test den f\u00e6rdige PCBA, herunder visuel inspektion, elektrisk test, funktionel test osv. for at sikre, at den fungerer korrekt og er fri for defekter.<br><strong>7. Emballage \uff1a.<\/strong>Emballering og m\u00e6rkning af den testede PCBA, herunder antistatisk emballage, fugtbestandig emballage osv. for at sikre dens sikkerhed under transport og brug af processen.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCBA_Application_Areas\"><\/span>PCBA-anvendelsesomr\u00e5der<span class=\"ez-toc-section-end\"><\/span><\/h2><p>PCBA-teknologien er blevet dybt integreret i forskellige omr\u00e5der af det moderne samfund:<br>Forbrugerelektronik: den miniaturiserede kerne i smartphones og tablets<br>Bilindustrien: nervecentret for elektrificering og intelligent k\u00f8rsel<br>Medicinsk udstyr: Livslinjen for diagnostiske instrumenter med h\u00f8j pr\u00e6cision<br>Industri 4.0: kontrolkernen i intelligente produktionssystemer<br>Luft- og rumfartsindustrien: den teknologiske hj\u00f8rnesten i meget p\u00e5lideligt udstyr<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Future_Development_Trends\"><\/span>Fremtidige udviklingstendenser<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>1. heterogen integrationsteknologi<br><\/strong>2,5D\/3D-emballage bryder med planets begr\u00e6nsning<br>Integration af siliciumfotonik skal \u00f8ge transmissionsb\u00e5ndbredden<br><strong>2.Gr\u00f8n produktionstransformation<br><\/strong>Popularisering af blyfri processer<br>Anvendelse af genanvendeligt materiale<br><strong>3. Anvendelse af digitale tvillinger<br><\/strong>Virtuelle prototyper fremskynder udviklingen<br>Intelligent forebyggende vedligeholdelse<\/p><p>I PCBA-design- og fremstillingsprocessen er den korrekte udv\u00e6lgelse og rationelle brug af elektroniske komponenter afg\u00f8rende. Designere skal v\u00e6lge de rette typer og specifikationer af elektroniske komponenter baseret p\u00e5 kredsl\u00f8bets funktionelle krav, krav til ydeevne og omkostningsovervejelser. Samtidig er det ogs\u00e5 n\u00f8dvendigt at overveje komponenternes layout, loddeprocessen og p\u00e5lideligheden for at sikre, at printkortets kvalitet og ydeevne opfylder de forventede krav.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>I PCBA-design- og fremstillingsprocessen er den korrekte udv\u00e6lgelse og rationelle brug af elektroniske komponenter afg\u00f8rende. Samtidig er det ogs\u00e5 n\u00f8dvendigt at overveje komponenternes layout, loddeproces og p\u00e5lidelighed for at sikre, at printkortets kvalitet og ydeevne opfylder de forventede krav.<\/p>","protected":false},"author":1,"featured_media":2481,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[228,229],"class_list":["post-2476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-common-compenents-on-a-pcba","tag-electronic-component"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Common Compenents On A PCBA - Topfastpcb<\/title>\n<meta name=\"description\" content=\"In the PCBA design and manufacturing process, the correct selection and rational use of electronic components, but also need to consider the layout of the components, soldering process and reliability\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/common-compenents-on-a-pcba\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Common Compenents On A PCBA - 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