{"id":67958,"date":"2023-12-17T14:00:24","date_gmt":"2023-12-17T13:00:24","guid":{"rendered":"https:\/\/homebook.click\/blog\/?p=67958"},"modified":"2026-04-08T11:02:26","modified_gmt":"2026-04-08T09:02:26","slug":"irf-4905-co-to-jest-dane-techniczne-cena-i-opinie","status":"publish","type":"post","link":"https:\/\/homebook.click\/blog\/irf-4905-co-to-jest-dane-techniczne-cena-i-opinie\/","title":{"rendered":"IRF 4905 &#8211; Co to jest? Dane techniczne, cena i opinie"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Czas czytania:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"67958\" class=\"elementor elementor-67958\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-93a9bc5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"93a9bc5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-99c5426\" data-id=\"99c5426\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fd35859 elementor-widget elementor-widget-text-editor\" data-id=\"fd35859\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>IRF 4905 to nazwa skr\u00f3cona tranzystora MOSFET charakteryzuj\u0105cego si\u0119 niezwykle nisk\u0105 rezystancj\u0105 i b\u0142yskawicznym prze\u0142\u0105czaniem.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09e7e26 elementor-widget elementor-widget-heading\" data-id=\"09e7e26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRF 4905 - co to jest?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59918fe elementor-widget elementor-widget-text-editor\" data-id=\"59918fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/homebook.click\/p-mosfet\/25087-tranzystor-p-mosfet-irf4905-55v-74a-tht.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>MOSFET IRF 4905<\/strong><\/a> to element elektroniczny z trzema wyprowadzeniami w postaci drucianych n\u00f3\u017cek, przeznaczony do monta\u017cu THT. Wyr\u00f3\u017cnia si\u0119 wysok\u0105 wydajno\u015bci\u0105, niezawodno\u015bci\u0105 i uniwersalnym zastosowaniem. <strong><a href=\"https:\/\/homebook.click\/91-tranzystory-unipolarne-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">Tranzystor unipolarny<\/a> o symbolu IRF 4905<\/strong> charakteryzuje si\u0119 kierunkiem przewodnictwa <a href=\"https:\/\/homebook.click\/230-p-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>P-MOSFET<\/strong><\/a>. Zasada dzia\u0142ania tranzystor\u00f3w typu P (z kana\u0142em P) polega na wykorzystywaniu dziur, kt\u00f3re s\u0105 no\u015bnikami \u0142adunk\u00f3w. Z kolei <a href=\"https:\/\/homebook.click\/231-n-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>MOSFET z kana\u0142em typu N<\/strong><\/a> wykorzystuje elektrony jako no\u015bniki \u0142adunk\u00f3w.<\/p><p>W\u0142\u0105czenie <strong>tranzystora P-kana\u0142owego<\/strong>, czyli wprowadzenie go w stan, w kt\u00f3rym ten element elektroniczny zacznie przewodzi\u0107 pr\u0105d mi\u0119dzy \u017ar\u00f3d\u0142em i bramk\u0105, wymaga pod\u0142\u0105czenia napi\u0119cia ujemnego (wzgl\u0119dem masy). Tranzystory unipolarne s\u0105 u\u017cywane m.in. jako podzespo\u0142y kluczuj\u0105ce, czyli odpowiedzialne za prze\u0142\u0105czania oraz elementy wzmacniaj\u0105ce. Tranzystor unipolarny IRF 4905 znajduje zastosowanie w r\u00f3\u017cnego rodzaju projektach DIY, m.in. we wzmacniaczach audio i w falownikach napi\u0119cia.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94b48c9 elementor-widget elementor-widget-heading\" data-id=\"94b48c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Co to jest MOSFET?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-1741764 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1741764\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-f1d62f2\" data-id=\"f1d62f2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-00f8f4e elementor-widget elementor-widget-text-editor\" data-id=\"00f8f4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/homebook.click\/91-tranzystory-unipolarne-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Tranzystory MOSFET<\/strong><\/a> (z ang. Metal-Oxide Semiconductor Field-Effect Transistor) to <strong>popularne elementy elektroniczne<\/strong> u\u017cywane do precyzyjnego sterowania pod\u0142\u0105czonymi urz\u0105dzeniami. Konstrukcja i w\u0142a\u015bciwo\u015bci tranzystora MOSFET pozwalaj\u0105 na bezpieczne sterowanie odbiornikami pr\u0105du, kt\u00f3re wymagaj\u0105 do dzia\u0142ania du\u017cej ilo\u015bci energii elektrycznej. G\u0142\u00f3wn\u0105 zalet\u0105 tranzystor\u00f3w MOSFET jest<strong> mo\u017cliwo\u015b\u0107 sterowania pod\u0142\u0105czonymi urz\u0105dzeniami, przy wykorzystaniu niewielkiego sygna\u0142u.<\/strong><\/p><p>MOSFET zaczyna przewodzi\u0107 w sytuacji, gdy napi\u0119cie bramka-\u017ar\u00f3d\u0142o przekroczy tak zwane <strong>napi\u0119cie progowe<\/strong>. Ten parametr mo\u017ce r\u00f3\u017cni\u0107 si\u0119 w zale\u017cno\u015bci od konkretnego tranzystora. Niekt\u00f3rzy producenci MOSFET\u00d3W w opisie produkt\u00f3w oznaczaj\u0105 napi\u0119cie progowe skr\u00f3tem UT. Model IRF4905 nale\u017cy do grupy tranzystor\u00f3w <strong>HEXFET<\/strong> wyr\u00f3\u017cniaj\u0105cych si\u0119 ponadprzeci\u0119tn\u0105 wydajno\u015bci\u0105. Unipolarna polaryzacja MOSFETA oznacza, \u017ce ca\u0142y proces sterowania dzieje si\u0119 przy wykorzystaniu jednego no\u015bnika \u0142adunku.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-7a41f8b\" data-id=\"7a41f8b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ebd2432 elementor-widget elementor-widget-image\" data-id=\"ebd2432\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/homebook.click\/blog\/wp-content\/uploads\/2023\/12\/25087_1_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"25087_1_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6ODk4NzgsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmNvbS5wbFwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyM1wvMTJcLzI1MDg3XzFfa3dhZHJhdC5qcGcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/homebook.click\/blog\/wp-content\/uploads\/2023\/12\/25087_1_kwadrat-1024x1024.jpg\" class=\"attachment-large size-large wp-image-89878\" alt=\"\" srcset=\"https:\/\/homebook.click\/blog\/wp-content\/uploads\/2023\/12\/25087_1_kwadrat-1024x1024.jpg 1024w, https:\/\/homebook.click\/blog\/wp-content\/uploads\/2023\/12\/25087_1_kwadrat-300x300.jpg 300w, https:\/\/homebook.click\/blog\/wp-content\/uploads\/2023\/12\/25087_1_kwadrat-768x768.jpg 768w, https:\/\/homebook.click\/blog\/wp-content\/uploads\/2023\/12\/25087_1_kwadrat.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Tranzystor P-MOSFET IRF4905 -55V\/-74A - THT.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f0af86 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"3f0af86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/homebook.click\/p-mosfet\/25087-tranzystor-p-mosfet-irf4905-55v-74a-tht.html\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">SPRAWD\u0179<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-8db15df elementor-widget elementor-widget-spacer\" data-id=\"8db15df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c3efa1 elementor-widget elementor-widget-heading\" data-id=\"5c3efa1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRF 4905 - dane techniczne<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a987cf elementor-widget elementor-widget-text-editor\" data-id=\"0a987cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/homebook.click\/230-p-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Tranzystor unipolarny z kana\u0142em typu P<\/strong><\/a> charakteryzuje si\u0119 pr\u0105dem drenu r\u00f3wnym <strong>74 A<\/strong>. Z kolei napi\u0119cie dren-\u017ar\u00f3d\u0142o wynosi <strong>55 V<\/strong>. Kolejnym parametrem technicznym jest rezystancja tranzystora w momencie, gdy element znajduje si\u0119 w stanie przewodzenia. Ten parametr jest r\u00f3wny <strong>20 mohm<\/strong>. Z kolei rozproszenie mocy kszta\u0142tuje si\u0119 na poziomie <strong>200 W<\/strong>. Maksymalna moc jest mo\u017cliwa do uzyskania wy\u0142\u0105cznie w przypadku, gdy MOSFET pracuje w zakresie temperatury roboczej.<\/p><p>Tranzystor unipolarny <a href=\"https:\/\/homebook.click\/p-mosfet\/25087-tranzystor-p-mosfet-irf4905-55v-74a-tht.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>IRF 4905<\/strong><\/a> jest wyprodukowany zgodnie z norm\u0105 RoHS, kt\u00f3ra zosta\u0142a wprowadzona w Unii Europejskiej w 2003. Dyrektywa RoHS ma na celu maksymalne zredukowanie niebezpiecznych substancji, kt\u00f3re potencjalnie mog\u0105 przenikn\u0105\u0107 do \u015brodowiska naturalnego, m.in. z urz\u0105dze\u0144 i podzespo\u0142\u00f3w elektronicznych. Tranzystor IRF 4905 jest zaprojektowany do stabilnego dzia\u0142ania w szerokim zakresie temperatury roboczej, wynosz\u0105cym <strong>od -55\u2103 do +175\u2103<\/strong>. Opisywany MOSFET jest zamkni\u0119ty w standardowej obudowie <strong>TO220AB<\/strong>, kt\u00f3ra zapewnia nie tylko wydajne ch\u0142odzenia, ale r\u00f3wnie\u017c \u0142atwy monta\u017c.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a44678 elementor-widget elementor-widget-heading\" data-id=\"9a44678\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRF 4905 - lutowanie THT<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a5c8a2 elementor-widget elementor-widget-text-editor\" data-id=\"0a5c8a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Opisywany tranzystor unipolarny jest przeznaczony do lutowania przewlekanego (THT)<\/strong>. W trakcie lutowania nie nale\u017cy przekracza\u0107 temperatury <strong>300\u2103<\/strong>. Z kolei maksymalny czas grzania to<strong> 10 sekund<\/strong>. Dobrym wyborem jest spoiwo lutownicze o \u015brednicy oko\u0142o <strong>1,6 mm<\/strong>. Monta\u017c elementu mo\u017ce odbywa\u0107 si\u0119 przy wykorzystaniu \u015bruby o rozmiarze <strong>M3<\/strong>. \u015arub\u0119 nale\u017cy dokr\u0119ci\u0107 z momentem obrotowym wynosz\u0105cym <strong>1,1 N.<\/strong><\/p><p>W przypadku prostych projekt\u00f3w DIY warto wykorzystywa\u0107 uniwersalne <a href=\"https:\/\/homebook.click\/54-plytki-uniwersalne\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>p\u0142ytki drukowane PCB<\/strong><\/a>. Monta\u017c tranzystora polega na prze\u0142o\u017ceniu wyprowadze\u0144 przez otwory w p\u0142ytce. Nast\u0119pnie wyprowadzenia (n\u00f3\u017cki druciane) trzeba przylutowa\u0107 do p\u00f3l lutowniczych, kt\u00f3re s\u0105 po\u0142\u0105czone ze \u015bcie\u017ckami przewodz\u0105cymi. Pola lutownicze p\u0142ytki drukowanej PCB s\u0105 wykonane z materia\u0142u, kt\u00f3ry u\u0142atwia lutowanie.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-df7cb54 elementor-widget elementor-widget-heading\" data-id=\"df7cb54\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRF 4905 - opinie<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ebca9d elementor-widget elementor-widget-text-editor\" data-id=\"6ebca9d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Opinie dotycz\u0105ce tranzystora unipolarnego z kana\u0142em typu P s\u0105 pozytywne zar\u00f3wno w\u015br\u00f3d profesjonalnych elektronik\u00f3w, jak i domowych majsterkowicz\u00f3w, m.in. ze wzgl\u0119du na \u0142atwy monta\u017c oraz uniwersalne zastosowanie. Kolejne pozytywne opinie wynikaj\u0105 m.in. z szerokiego zakresu temperatury roboczej, a co za tym idzie stabilnego dzia\u0142ania w zr\u00f3\u017cnicowanych warunkach. Tranzystor jest stosunkowo tani, dzi\u0119ki czemu jest dost\u0119pny dla praktycznie ka\u017cdej osoby, kt\u00f3ra chce wykona\u0107 np. prosty wzmacniacz audio.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21bbab6 elementor-widget elementor-widget-heading\" data-id=\"21bbab6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRF 4905 - cena<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a94e48b elementor-widget elementor-widget-text-editor\" data-id=\"a94e48b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cena <a href=\"https:\/\/homebook.click\/p-mosfet\/25087-tranzystor-p-mosfet-irf4905-55v-74a-tht.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">tranzystora unipolarnego IRF 4905<\/a> jest uzale\u017cniona nie tylko od konkretnego sprzedawcy, ale r\u00f3wnie\u017c liczby zam\u00f3wionych sztuk oraz kosztu wysy\u0142ki. Wybrane sklepy stosuj\u0105 obni\u017cki cen w przypadku zam\u00f3wie\u0144 hurtowych podzespo\u0142\u00f3w elektronicznych. Kupuj\u0105c np. 500 lub wi\u0119cej tranzystor\u00f3w unipolarnych IRF 4905, mo\u017cna znale\u017a\u0107 zdecydowanie ni\u017csze oferty, np. za oko\u0142o 5 z\u0142.<\/p><p>W obu przypadkach cena MOSFETA z kana\u0142em typu P nie jest wyg\u00f3rowana. W zamian za to u\u017cytkownik otrzymuje sprawdzony tranzystor o wysokiej mocy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>IRF 4905 to nazwa skr\u00f3cona tranzystora MOSFET charakteryzuj\u0105cego si\u0119 niezwykle nisk\u0105 rezystancj\u0105 i b\u0142yskawicznym prze\u0142\u0105czaniem.<\/p>\n","protected":false},"author":21,"featured_media":74104,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-67958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-kompendium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IRF 4905 - Co to jest? 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