{"id":1450,"date":"2025-04-14T14:20:00","date_gmt":"2025-04-14T06:20:00","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=1450"},"modified":"2025-10-22T17:23:15","modified_gmt":"2025-10-22T09:23:15","slug":"circuit-board-resistors","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/","title":{"rendered":"Widerst\u00e4nde auf der Leiterplatte"},"content":{"rendered":"<p><strong>Widerst\u00e4nde<\/strong> (im allt\u00e4glichen Sprachgebrauch einfach als Widerst\u00e4nde bezeichnet) sind strombegrenzende Bauteile. Wenn ein Widerstand in einem Stromkreis angeschlossen ist, hat er in der Regel einen festen Widerstandswert mit zwei Stiften, die den Stromfluss in seinem angeschlossenen Zweig begrenzen. Widerst\u00e4nde mit unver\u00e4nderlichen Widerstandswerten werden als <strong>Festwiderst\u00e4nde<\/strong>, w\u00e4hrend solche mit einstellbarem Widerstand als <strong>Potentiometer<\/strong> or <strong>ver\u00e4nderliche Widerst\u00e4nde<\/strong>. Ein idealer Widerstand ist linear, d. h. der Momentanstrom ist direkt proportional zur angelegten Momentanspannung. Variable Widerst\u00e4nde, die zur Spannungsteilung verwendet werden, verf\u00fcgen \u00fcber einen oder zwei bewegliche Metallkontakte, die gegen ein freiliegendes Widerstandselement gedr\u00fcckt werden, wobei die Kontaktposition den Widerstand zwischen den beiden Enden des Widerstandselements und dem Kontakt bestimmt.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 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\">Inhalts\u00fcbersicht<\/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:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Working_Principle_of_PCB_Resistors\" >Arbeitsprinzip von PCB-Widerst\u00e4nden<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Resistor_Materials\" >Materialien f\u00fcr Widerst\u00e4nde<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Classification_by_Material\" >Klassifizierung nach Material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Resistor_Markings\" >Widerstandsmarkierungen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Resistance_Value_and_Tolerance_Marking_Methods\" >Widerstandswert- und Toleranzkennzeichnungsmethoden<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#1_Direct_Marking_Method\" >1. Direkte Markierungsmethode<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#2_Color_Coding_Method\" >2.Farbcodierungsmethode<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#4-Band_Resistor_Identification\" >4-Band-Identifikation von Widerst\u00e4nden<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#5-Band_Resistor_Identification\" >Identifizierung von 5-Band-Widerst\u00e4nden<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#How_to_Use_the_Tables\" >Wie die Tabellen verwendet werden<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#For_4-band_resistors\" >F\u00fcr 4-Band-Widerst\u00e4nde:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#For_5-band_resistors\" >F\u00fcr 5-Band-Widerst\u00e4nde:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Tolerance_Definition\" >Definition von Toleranz<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Selection_of_PCB_Resistors\" >Auswahl von PCB-Widerst\u00e4nden<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#1_Selection_of_Fixed_Resistors\" >1. Auswahl der Festwiderst\u00e4nde<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#2_Fusible_Resistors\" >2.Schmelzbare Widerst\u00e4nde<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Three_Fundamental_Selection_Principles\" >Drei grundlegende Auswahlprinzipien<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#Major_Resistor_Brands\" >Wichtige Widerstandsmarken<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#PCB_Resistor_Soldering_Guidelines\" >Richtlinien f\u00fcr das L\u00f6ten von PCB-Widerst\u00e4nden<\/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:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#1_Temperature_Control\" >1. Temperaturkontrolle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#2_Soldering_Duration\" >2.Dauer der L\u00f6tung<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#3_Placement\" >3.Platzierung<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#4_Soldering_Methods\" >4.L\u00f6tverfahren<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/#5_Additional_Checks\" >5.Zus\u00e4tzliche Kontrollen<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Working_Principle_of_PCB_Resistors\"><\/span><strong>Arbeitsprinzip von PCB-Widerst\u00e4nden<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Widerst\u00e4nde auf Leiterplatten funktionieren, indem sie den Stromfluss durch ihr internes Widerstandsmaterial behindern und dadurch den Strom begrenzen.Ihr Betrieb basiert auf <strong>Ohm&#8217;sches Gesetz<\/strong>: V = I \u00d7 R, where V is voltage, I is current, and R is resistance. A resistor&#8217;s fixed value is typically connected to the circuit through two pins to regulate current flow. The resistance value depends on factors including temperature, material, length, and cross-sectional area. The <strong>Temperaturkoeffizient<\/strong> quantifies resistance variation per 1\u00b0C temperature change, expressed as a percentage. A key characteristic of resistors is their ability to convert electrical energy into heat, making them energy-dissipating components. In circuits, resistors primarily serve voltage division and current splitting functions and can work with both AC and DC signals.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resistor_Materials\"><\/span><strong>Materialien f\u00fcr Widerst\u00e4nde<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Widerst\u00e4nde werden in erster Linie aus Widerstandsmaterialien hergestellt. Zu den gebr\u00e4uchlichen Typen geh\u00f6ren Kohlenstofffilm, Metallfilm, feste Zusammensetzung und Drahtwicklung. Die unterschiedlichen Eigenschaften dieser Materialien bestimmen die Leistung und die Anwendungen von Widerst\u00e4nden. Zum Beispiel:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kohleschichtwiderst\u00e4nde<\/strong> werden aufgrund ihrer geringen Kosten und ihrer guten Stabilit\u00e4t h\u00e4ufig verwendet<\/li>\n\n\n\n<li><strong>Metallschichtwiderst\u00e4nde<\/strong> werden in Hochleistungsschaltungen wegen ihrer \u00fcberragenden Stabilit\u00e4t und ihres geringen Rauschens bevorzugt<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Classification_by_Material\"><\/span><strong>Klassifizierung nach Material<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Drahtgewickelte Widerst\u00e4nde<\/strong>: Hergestellt durch Wickeln von hochwiderstandsf\u00e4higem Legierungsdraht um einen isolierenden Kern, beschichtet mit hitzebest\u00e4ndiger Glasur oder isolierender Farbe. Sie zeichnen sich durch einen niedrigen Temperaturkoeffizienten, hohe Pr\u00e4zision, gute Stabilit\u00e4t und Hitze-\/Korrosionsbest\u00e4ndigkeit aus. Haupts\u00e4chlich f\u00fcr Pr\u00e4zisionsanwendungen mit hoher Leistung verwendet, allerdings mit schlechter Hochfrequenzleistung und gro\u00dfer Zeitkonstante.<\/li>\n\n\n\n<li><strong>Widerst\u00e4nde mit Kohlenstoffzusammensetzung<\/strong>: Wird durch Komprimierung von Kohlenstoff und synthetischem Kunststoff hergestellt.<\/li>\n\n\n\n<li><strong>Kohleschichtwiderst\u00e4nde<\/strong>Hergestellt durch Abscheidung von kristallinem Kohlenstoff auf Keramikst\u00e4ben. Sie bieten niedrige Kosten, stabile Leistung, einen gro\u00dfen Widerstandsbereich und niedrige Temperatur-\/Spannungskoeffizienten, was sie zum am h\u00e4ufigsten verwendeten Widerstandstyp macht.<\/li>\n\n\n\n<li><strong>Metallschichtwiderst\u00e4nde<\/strong>Hergestellt durch Vakuumabscheidung von Legierungsmaterialien auf Keramikst\u00e4ben.Bieten h\u00f6here Pr\u00e4zision, bessere Stabilit\u00e4t, geringeres Rauschen und kleinere Temperaturkoeffizienten als Kohleschichtwiderst\u00e4nde, weshalb sie h\u00e4ufig in Mess- und Kommunikationsger\u00e4ten eingesetzt werden.<\/li>\n\n\n\n<li><strong>Metalloxidschichtwiderst\u00e4nde<\/strong>: Sie werden durch Abscheidung von Metalloxiden (wie Zinnoxid) auf Isolierst\u00e4ben hergestellt. Da sie selbst Oxide sind, bieten sie eine hervorragende Hochtemperaturstabilit\u00e4t, Temperaturwechselbest\u00e4ndigkeit und eine hohe Belastbarkeit.<\/li>\n<\/ol>\n\n\n\n<p>Je nach Anwendung k\u00f6nnen Widerst\u00e4nde in die Kategorien Allzweck-, Pr\u00e4zisions-, Hochfrequenz-, Hochspannungs-, Hochwiderstands- und Hochleistungswiderstandsnetze eingeteilt werden.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"780\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Resistor-Symbols.jpg\" alt=\"\" class=\"wp-image-1451\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Resistor-Symbols.jpg 850w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Resistor-Symbols-300x275.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Resistor-Symbols-768x705.jpg 768w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Resistor-Symbols-150x138.jpg 150w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resistor_Markings\"><\/span><strong>Widerstandsmarkierungen<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The nominal resistance value is marked on resistors using numbers or color codes, with units of ohms (\u03a9), kilohms (k\u03a9), megohms (M\u03a9), or teraohms (T\u03a9). Resistance values follow standardized preferred number series corresponding to tolerance ratings.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resistance_Value_and_Tolerance_Marking_Methods\"><\/span><strong>Widerstandswert- und Toleranzkennzeichnungsmethoden<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Es gibt drei prim\u00e4re Markierungsmethoden:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Direkte Markierung<\/li>\n\n\n\n<li>Farbkodierung<\/li>\n\n\n\n<li>Alphanumerische Symbolkodierung<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Direct_Marking_Method\"><\/span>1. Direkte Markierungsmethode<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Beispiel f\u00fcr eine Kennzeichnung<\/th><th>Widerstandswert<\/th><th>Toleranz<\/th><\/tr><\/thead><tbody><tr><td>3\u03a93 \u2160<\/td><td>3.3 \u03a9<\/td><td>\u00b15%<\/td><\/tr><tr><td>1K8<\/td><td>1.8 k\u03a9<\/td><td>\u00b120%<\/td><\/tr><tr><td>5M1 \u2161<\/td><td>5.1 M\u03a9<\/td><td>\u00b110%<\/td><\/tr><tr><td><em>Note: Unmarked resistors default to \u00b120% tolerance<\/em><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Color_Coding_Method\"><\/span>2.Farbcodierungsmethode<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4-Band_Resistor_Identification\"><\/span>4-Band-Identifikation von Widerst\u00e4nden<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Farbe<\/th><th>1. Stelle<\/th><th>2. Stelle<\/th><th>Multiplikator<\/th><th>Toleranz<\/th><\/tr><\/thead><tbody><tr><td>Schwarz<\/td><td>0<\/td><td>0<\/td><td>10\u2070<\/td><td>\u2014<\/td><\/tr><tr><td>Braun<\/td><td>1<\/td><td>1<\/td><td>10\u00b9<\/td><td>\u2014<\/td><\/tr><tr><td>Red<\/td><td>2<\/td><td>2<\/td><td>10\u00b2<\/td><td>\u2014<\/td><\/tr><tr><td>Orange<\/td><td>3<\/td><td>3<\/td><td>10\u00b3<\/td><td>\u2014<\/td><\/tr><tr><td>Gelb<\/td><td>4<\/td><td>4<\/td><td>10\u2074<\/td><td>\u2014<\/td><\/tr><tr><td>Gr\u00fcn<\/td><td>5<\/td><td>5<\/td><td>10\u2075<\/td><td>\u2014<\/td><\/tr><tr><td>Blau<\/td><td>6<\/td><td>6<\/td><td>10\u2076<\/td><td>\u2014<\/td><\/tr><tr><td>Violett<\/td><td>7<\/td><td>7<\/td><td>10\u2077<\/td><td>\u2014<\/td><\/tr><tr><td>Gray<\/td><td>8<\/td><td>8<\/td><td>10\u2078<\/td><td>\u2014<\/td><\/tr><tr><td>Wei\u00df<\/td><td>9<\/td><td>9<\/td><td>10\u2079<\/td><td>\u2014<\/td><\/tr><tr><td>Gold<\/td><td>\u2014<\/td><td>\u2014<\/td><td>10\u207b\u00b9<\/td><td>\u00b15%<\/td><\/tr><tr><td>Silber<\/td><td>\u2014<\/td><td>\u2014<\/td><td>10\u207b\u00b2<\/td><td>\u00b110%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5-Band_Resistor_Identification\"><\/span>Identifizierung von 5-Band-Widerst\u00e4nden<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Farbe<\/th><th>1. Stelle<\/th><th>2. Stelle<\/th><th>3. Stelle<\/th><th>Multiplikator<\/th><th>Toleranz<\/th><\/tr><\/thead><tbody><tr><td>Schwarz<\/td><td>0<\/td><td>0<\/td><td>0<\/td><td>10\u2070<\/td><td>\u2014<\/td><\/tr><tr><td>Braun<\/td><td>1<\/td><td>1<\/td><td>1<\/td><td>10\u00b9<\/td><td>\u00b11%<\/td><\/tr><tr><td>Red<\/td><td>2<\/td><td>2<\/td><td>2<\/td><td>10\u00b2<\/td><td>\u00b12%<\/td><\/tr><tr><td>Orange<\/td><td>3<\/td><td>3<\/td><td>3<\/td><td>10\u00b3<\/td><td>\u2014<\/td><\/tr><tr><td>Gelb<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>10\u2074<\/td><td>\u2014<\/td><\/tr><tr><td>Gr\u00fcn<\/td><td>5<\/td><td>5<\/td><td>5<\/td><td>10\u2075<\/td><td>\u00b10.5%<\/td><\/tr><tr><td>Blau<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>10\u2076<\/td><td>\u00b10.25%<\/td><\/tr><tr><td>Violett<\/td><td>7<\/td><td>7<\/td><td>7<\/td><td>10\u2077<\/td><td>\u00b10.1%<\/td><\/tr><tr><td>Gray<\/td><td>8<\/td><td>8<\/td><td>8<\/td><td>10\u2078<\/td><td>\u00b10.05%<\/td><\/tr><tr><td>Wei\u00df<\/td><td>9<\/td><td>9<\/td><td>9<\/td><td>10\u2079<\/td><td>\u2014<\/td><\/tr><tr><td>Gold<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><td>10\u207b\u00b9<\/td><td>\u00b15%<\/td><\/tr><tr><td>Silber<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><td>10\u207b\u00b2<\/td><td>\u00b110%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Use_the_Tables\"><\/span>Wie die Tabellen verwendet werden<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"858\" height=\"504\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/5-Color-Ring-Resistors.jpg\" alt=\"\" class=\"wp-image-1452\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/5-Color-Ring-Resistors.jpg 858w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/5-Color-Ring-Resistors-300x176.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/5-Color-Ring-Resistors-768x451.jpg 768w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/5-Color-Ring-Resistors-390x228.jpg 390w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/5-Color-Ring-Resistors-150x88.jpg 150w\" sizes=\"auto, (max-width: 858px) 100vw, 858px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"For_4-band_resistors\"><\/span>F\u00fcr 4-Band-Widerst\u00e4nde:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1. Band (Zehnerstelle)<\/strong>: Farbe = Rot (2)<\/li>\n\n\n\n<li><strong>2. Band (Einerstelle)<\/strong>: Farbe = Orange (3)<\/li>\n\n\n\n<li><strong>Multiplikator<\/strong>: Color = Black (10\u2070)<\/li>\n\n\n\n<li><strong>Toleranz<\/strong>: Color = Gold (\u00b15%)<br><strong>Beispiel<\/strong>:<br>Red-Orange-Black-Gold = 23 \u00d7 10\u2070 = <strong>23\u03a9 (\u00b15%)<\/strong><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"For_5-band_resistors\"><\/span>F\u00fcr 5-Band-Widerst\u00e4nde:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1. Band (Hunderterstelle)<\/strong>: Farbe = Rot (2)<\/li>\n\n\n\n<li><strong>2. Band (Zehnerstelle)<\/strong>: Farbe = Blau (6)<\/li>\n\n\n\n<li><strong>3. Band (Einerstelle)<\/strong>: Farbe = Gr\u00fcn (5)<\/li>\n\n\n\n<li><strong>Multiplikator<\/strong>: Color = Black (10\u2070)<\/li>\n\n\n\n<li><strong>Toleranz<\/strong>: Color = Brown (\u00b11%)<br><strong>Beispiel<\/strong>:<br>Red-Blue-Green-Black-Brown = 265 \u00d7 10\u2070 = <strong>265\u03a9 (\u00b11%)<\/strong><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tolerance_Definition\"><\/span>Definition von Toleranz<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Die Toleranz stellt die <strong>maximal zul\u00e4ssige Abweichung<\/strong> zwischen dem tats\u00e4chlichen Widerstandswert und dem Nennwert, ausgedr\u00fcckt in Prozent. \u00dcbliche Toleranzklassen sind:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Standard: \u00b15%, \u00b110%, \u00b120%<\/li>\n\n\n\n<li>Precision: &lt;\u00b11%<\/li>\n\n\n\n<li>High-precision: Up to \u00b10.001%<\/li>\n<\/ul>\n\n\n\n<p><strong>Hinweis<\/strong>: Die Genauigkeit wird sowohl durch die Toleranz als auch durch irreversible Widerstands\u00e4nderungen bestimmt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Selection_of_PCB_Resistors\"><\/span>Auswahl von PCB-Widerst\u00e4nden<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Selection_of_Fixed_Resistors\"><\/span>1. Auswahl der Festwiderst\u00e4nde<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Die Wahl des Widerstandsmaterials und -aufbaus sollte sich nach den spezifischen Anforderungen der Anwendungsschaltung richten:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hochfrequenz-Schaltungen<\/strong>: Verwenden Sie nicht drahtgewickelte Widerst\u00e4nde mit geringer verteilter Induktivit\u00e4t und Kapazit\u00e4t, wie z. B. <strong>Widerst\u00e4nde mit Kohlenstoffschicht, Metallschicht, Metalloxidschicht, D\u00fcnnschicht, Dickschicht, Legierung oder Korrosionsschutzbeschichtung<\/strong>.<\/li>\n\n\n\n<li><strong>Kleinsignal-Verst\u00e4rker mit hoher Verst\u00e4rkung<\/strong>: Entscheiden Sie sich f\u00fcr <strong>rauscharme Widerst\u00e4nde<\/strong> (z. B. Metallfilm-, Kohleschicht- oder drahtgewickelte Widerst\u00e4nde). Vermeiden Sie <strong>Kohlenstoffzusammensetzung und organische Festk\u00f6rperwiderst\u00e4nde<\/strong>die ein h\u00f6heres Rauschen aufweisen.<\/li>\n<\/ul>\n\n\n\n<p><strong>Wichtige \u00dcberlegungen:<\/strong><br>\u2714 Select standard-series resistors with values closest to the calculated circuit requirement.<br>\u2714 General circuits: <strong>\u00b15% to \u00b110% tolerance<\/strong> ist akzeptabel.<br>\u2714 Precision instruments\/special circuits: Use <strong>hochpr\u00e4zise Widerst\u00e4nde<\/strong> (z. B. 0,01 %, 0,1 % oder 0,5 % Toleranz, wie z. B. <em>Jebsen-Widerst\u00e4nde<\/em>).<br>\u2714 <strong>Nennleistung<\/strong> must match circuit demands\u2014avoid arbitrarily increasing\/decreasing wattage.<br>\u2714 For power resistors: Choose a rating <strong>1\u20132\u00d7 higher<\/strong> als der tats\u00e4chliche Stromkreisbedarf.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Fusible_Resistors\"><\/span>2.Schmelzbare Widerst\u00e4nde<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Diese fungieren als <strong>Schutzkomponenten<\/strong>. Auswahl erfordert Abw\u00e4gung:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Normaler Betrieb<\/strong>: Stabile Leistung unter Nennbedingungen.<\/li>\n\n\n\n<li><strong>\u00dcberlastungsszenarien<\/strong>: Schnelle Absicherung zum Schutz des Stromkreises.<br>\u26a0 <em>Ungeeignete Widerstands-\/Leistungswerte beeintr\u00e4chtigen den Schutz.<\/em><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Three_Fundamental_Selection_Principles\"><\/span><strong>Drei grundlegende Auswahlprinzipien<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Zertifizierte Fertigung<\/strong>: W\u00e4hlen Sie Widerst\u00e4nde, die nach zertifizierten Verfahren mit hohem Standard hergestellt werden.<\/li>\n\n\n\n<li><strong>Bewertung der Lieferanten<\/strong>: Priorisieren Sie Hersteller mit <strong>technische \u00dcberlegenheit, Qualit\u00e4tssicherung, Kosteneffizienz und zuverl\u00e4ssige Unterst\u00fctzung<\/strong>.<\/li>\n\n\n\n<li><strong>Direkte Beschaffung<\/strong>: Beschaffen Sie bei zugelassenen Lieferanten mit gepr\u00fcften Produktkatalogen.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Major_Resistor_Brands\"><\/span><strong>Wichtige Widerstandsmarken<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Region<\/th><th>Hersteller<\/th><\/tr><\/thead><tbody><tr><td><strong>US\/EU\/Japan<\/strong><\/td><td>Vishay, TE Connectivity, TT Electronics, Bourns, KOA<\/td><\/tr><tr><td><strong>Taiwan\/China<\/strong><\/td><td>Yageo, Ralec, Uniohm, LIZ, TA-I, Walsin, Viking Tech, HKR, PAK HENG, TOKEN<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"655\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Fixed-Resistors-1024x655.jpg\" alt=\"\" class=\"wp-image-1453\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Fixed-Resistors-1024x655.jpg 1024w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Fixed-Resistors-300x192.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Fixed-Resistors-768x491.jpg 768w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Fixed-Resistors-150x96.jpg 150w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/04\/Fixed-Resistors.jpg 1116w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCB_Resistor_Soldering_Guidelines\"><\/span><strong>Richtlinien f\u00fcr das L\u00f6ten von PCB-Widerst\u00e4nden<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Temperature_Control\"><\/span>1. <strong>Temperaturkontrolle<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Einstellung auf Basis des Widerstands <strong>Material, Gr\u00f6\u00dfe und L\u00f6tverfahren<\/strong>.<\/li>\n\n\n\n<li><strong>Zu hoch<\/strong>: Gefahr der Besch\u00e4digung von Bauteilen.<\/li>\n\n\n\n<li><strong>Zu niedrig<\/strong>: Schwache L\u00f6tstellen.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Soldering_Duration\"><\/span>2. <strong>Dauer der L\u00f6tung<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00dcbersch\u00fcssige Zeit<\/strong>: Verschlechtert die Leistung von Widerst\u00e4nden.<\/li>\n\n\n\n<li><strong>Unzureichende Zeit<\/strong>: Schlechtes Haftverm\u00f6gen.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Placement\"><\/span>3. <strong>Platzierung<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Montage an der <strong>PCB\u2019s top layer<\/strong> (vermeiden Sie die Platzierung auf der Unterseite).<\/li>\n\n\n\n<li>Vermeiden Sie die N\u00e4he zu anderen Komponenten, um St\u00f6rungen zu vermeiden.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Soldering_Methods\"><\/span>4. <strong>L\u00f6tverfahren<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Handl\u00f6ten<\/strong>: Prototyping in kleinen St\u00fcckzahlen.<\/li>\n\n\n\n<li><strong>Maschinelles L\u00f6ten<\/strong>: Massenproduktion.<\/li>\n\n\n\n<li>Beide erfordern eine strenge Kontrolle der <strong>Temperatur, Zeit und Positionierung<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Additional_Checks\"><\/span>5. <strong>Zus\u00e4tzliche Kontrollen<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\u2714 Verify resistor <strong>Spezifikationen entsprechen den PCB-Design-Parametern<\/strong>.<br>\u2714 <strong>Vorgereinigte PCBs<\/strong> um Verunreinigungen zu entfernen.<br>\u2714 <strong>Kontrolle nach dem L\u00f6ten<\/strong>: Gew\u00e4hrleistung der mechanischen Stabilit\u00e4t.<\/p>\n\n\n\n<p><strong>Zusammenfassung<\/strong>Richtiges L\u00f6ten von Widerst\u00e4nden ist entscheidend f\u00fcr die Zuverl\u00e4ssigkeit von Leiterplatten. Die Beherrschung dieser Techniken gew\u00e4hrleistet eine optimale Schaltungsleistung.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Widerst\u00e4nde (im allt\u00e4glichen Sprachgebrauch einfach als Widerst\u00e4nde bezeichnet) sind strombegrenzende Bauteile. Wenn ein Widerstand in einem Stromkreis angeschlossen ist, hat er in der Regel einen festen Widerstandswert mit zwei Stiften, die den Stromfluss in seinem angeschlossenen Zweig begrenzen.<\/p>","protected":false},"author":2,"featured_media":1457,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[147],"class_list":["post-1450","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-resistor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Circuit Board Resistors - Topfastpcba<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topfastpcba.com\/de\/circuit-board-resistors\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit Board Resistors - Topfastpcba\" \/>\n<meta property=\"og:description\" content=\"Resistors (commonly referred to simply as &quot;resistors&quot; in daily usage) are current-limiting components. 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