{"id":1909,"date":"2026-10-01T00:18:51","date_gmt":"2026-10-01T00:18:51","guid":{"rendered":"https:\/\/ritoks.com\/?p=1909"},"modified":"2026-10-06T01:09:08","modified_gmt":"2026-10-06T01:09:08","slug":"scr-module-heatsink-selection-thermal-evidence","status":"publish","type":"post","link":"https:\/\/ritoks.com\/tr\/scr-module-heatsink-selection-thermal-evidence\/","title":{"rendered":"SCR Mod\u00fcl\u00fc ve So\u011futucu Se\u00e7imi: Termal Kan\u0131t Gerekli"},"content":{"rendered":"

Bir SCR mod\u00fcl\u00fcn\u00fcn ak\u0131m derecesi, so\u011futucusunun boyutunu belirlemez. Is\u0131l tasar\u0131m, ger\u00e7ek \u00e7al\u0131\u015fma d\u00f6ng\u00fcs\u00fcndeki kay\u0131plara, izin verilen ba\u011flant\u0131 noktas\u0131 s\u0131cakl\u0131\u011f\u0131na, ba\u011flant\u0131 noktas\u0131-g\u00f6vde ve aray\u00fcz termal yollar\u0131na, so\u011futma ko\u015fullar\u0131na ve mod\u00fcl\u00fcn montaj \u015fekline ba\u011fl\u0131d\u0131r. Bir mod\u00fcl ve g\u00f6r\u00fcn\u00fc\u015fte b\u00fcy\u00fck bir al\u00fcminyum ekstr\u00fczyon profili i\u00e7in verilen fiyat teklifi, tam bir termal tasar\u0131m de\u011fildir.<\/p>\n

Bu k\u0131lavuz, bir trist\u00f6r mod\u00fcl\u00fc i\u00e7in so\u011futucu se\u00e7ilmeden \u00f6nce talep edilmesi gereken verileri ortaya koymaktad\u0131r. Bilinmeyen bir devre i\u00e7in termal diren\u00e7 de\u011feri belirlemeye de\u011fil; girdi verilerine, hesaplama s\u0131n\u0131rlar\u0131na ve do\u011frulamaya odaklanmaktad\u0131r. Kesin SCR sipari\u015f kodu ve uygulama dalga formlar\u0131 h\u00e2l\u00e2 hayati \u00f6nem ta\u015f\u0131maktad\u0131r.<\/p>\n

Uygulama dalga formuyla ba\u015flay\u0131n<\/h2>\n

Devre topolojisini ve her bir trist\u00f6r\u00fcn i\u015flevini kaydedin: kontroll\u00fc do\u011frultma, AC g\u00fc\u00e7 kontrol\u00fc, yumu\u015fak ba\u015flatma veya ba\u015fka bir g\u00f6rev. Mod\u00fcl\u00fcn tek bir eleman m\u0131, \u00e7ift konfig\u00fcrasyon mu yoksa ba\u015fka bir i\u00e7 ba\u011flant\u0131 m\u0131 i\u00e7erdi\u011fini not edin. Ayn\u0131 isim plakas\u0131 ak\u0131m\u0131, farkl\u0131 devrelerde \u00e7ok farkl\u0131 iletim s\u00fcreleri, darbe \u015fekilleri ve \u0131s\u0131 olu\u015fumuna yol a\u00e7abilir.<\/p>\n

Provide the RMS and average current information relevant to the manufacturer’s loss model, together with conduction angle, repetition, duty cycle and overload events. Include the current waveform or a validated simulation when possible. Do not take a sine-wave datasheet test point and treat it as a universal loss figure for a chopped or highly pulsed application.<\/p>\n

En k\u00f6t\u00fc s\u00fcrekli y\u00fck ko\u015fulunu ve \u00f6nemli ge\u00e7ici durumlar\u0131 ayr\u0131 ayr\u0131 belirleyin. \u00c7al\u0131\u015ft\u0131rma, devreye giri\u015f ak\u0131m\u0131 ve k\u0131sa s\u00fcreli a\u015f\u0131r\u0131 y\u00fck durumlar\u0131, ge\u00e7ici termal empedans incelemesini gerektirebilirken, s\u00fcrekli \u00e7al\u0131\u015fma ise kararl\u0131 durum analizini gerektirir. Bir so\u011futucunun termal k\u00fctlesi, tekrarlanan darbelerin g\u00f6z ard\u0131 edilmesini hakl\u0131 \u00e7\u0131karmaz; bu tekrarlanan darbeler, sistemin ba\u015flang\u0131\u00e7 s\u0131cakl\u0131\u011f\u0131na d\u00f6nmesini engelleyebilir.<\/p>\n

Kesin model bilgilerine dayal\u0131 olarak zarar\u0131 hesaplamak<\/h2>\n

Request the exact model’s on-state voltage or loss parameters and the manufacturer’s recommended calculation method. Where the module has multiple devices, track loss per conducting element and the total heat injected into the shared baseplate. Power loss is an input to thermal analysis; it is not the same as the output power or load rating of the equipment.<\/p>\n

Veri sayfas\u0131nda belirli ba\u011flant\u0131 noktas\u0131 s\u0131cakl\u0131klar\u0131 ve ak\u0131m ko\u015fullar\u0131 i\u00e7in e\u011friler olup olmad\u0131\u011f\u0131n\u0131 kontrol edin. Bir tedarik\u00e7i tek bir \u201ctipik\u201d de\u011fer veriyorsa, ko\u015fullar\u0131 sorun ve maksimum veya tasar\u0131m de\u011ferinin mevcut olup olmad\u0131\u011f\u0131n\u0131 \u00f6\u011frenin. Do\u011frulanmam\u0131\u015f tipik verilerden elde edilen kesin bir \u0131s\u0131 emici s\u0131cakl\u0131\u011f\u0131 sunmak yerine, belirsizli\u011fi belirtin.<\/p>\n

Bir redres\u00f6r veya faz kontrol sistemi i\u00e7in, zaman i\u00e7inde hem iletim yolunu hem de ak\u0131m\u0131n cihazlara da\u011f\u0131l\u0131m\u0131n\u0131 netle\u015ftirin. Kontrol \u015femas\u0131 veya devre \u00e7al\u0131\u015fmas\u0131 asimetrikse, \u00e7ift SCR mod\u00fcl\u00fc kay\u0131plar\u0131 e\u015fit olarak payla\u015ft\u0131rmayabilir. Termal model, ger\u00e7ek iletim cihazlar\u0131n\u0131 ve gerekirse tek bir \u0131s\u0131 emici \u00fczerindeki birden fazla \u0131s\u0131 kayna\u011f\u0131n\u0131n yak\u0131nl\u0131\u011f\u0131n\u0131 yans\u0131tmal\u0131d\u0131r.<\/p>\n

\"SCR\u2019nin
SCR\u2019nin birle\u015fme noktas\u0131ndan ba\u015flayarak aray\u00fcz \u00fczerinden ortam havas\u0131na kadar yay\u0131lan \u0131s\u0131y\u0131 izleyin.<\/figcaption><\/figure>\n

Termal yolun tamam\u0131n\u0131 okuyun<\/h2>\n

A simplified steady-state path runs from junction to case, case through thermal interface material to heatsink, and heatsink to ambient. Each stage contributes temperature rise under the relevant heat flow. Infineon’s module mounting guidance emphasizes that thermal interface material, application and geometry affect conduction between module and sink. No catalogue heatsink number can compensate for a poorly controlled contact interface.<\/p>\n

Obtain the exact module’s thermal-resistance or transient-impedance data and understand the measurement reference points. \u201cJunction-to-case\u201d is not automatically comparable across different internal configurations or test conventions. The sink supplier’s thermal-resistance figure also has conditions: airflow, orientation, base area and a particular heat-source arrangement may be assumed.<\/p>\n

Check where the equipment’s ambient reference is measured. Air near an SCR bank, inside a crowded cabinet, may be hotter than room air. A fan’s free-air rating is not the airflow through the sink fins once filters, guards and nearby components are installed. In a design review, use the relevant local inlet-air condition rather than the most favorable laboratory ambient.<\/p>\n

Aray\u00fcz\u00fc ve montaj prosed\u00fcr\u00fcn\u00fc ekleyin<\/h2>\n

Thermal compound, pad or factory-applied interface material is part of the designed path. Record which interface is allowed for the exact module, the required surface flatness and cleanliness, and the manufacturer’s placement and fastening sequence. A change of compound or mounting pressure can change contact resistance even if the electrical module and sink are unchanged.<\/p>\n

Ask for specified mounting torque, fastener pattern, electrical clearances and any re-tightening or burn-in instruction. These details should come from the current module installation manual, not from a generic torque chart. Infineon’s power-module documentation explicitly treats mounting as a thermal-performance and reliability issue; RITOKS products require their own exact-model instructions before assembly release.<\/p>\n

Birden fazla mod\u00fcl\u00fcn ayn\u0131 \u0131s\u0131 emiciyi payla\u015f\u0131p payla\u015fmad\u0131\u011f\u0131n\u0131 de\u011ferlendirin. Mekanik etkile\u015fim, \u0131s\u0131 yay\u0131l\u0131m\u0131, elektriksel yal\u0131t\u0131m ve hava ak\u0131\u015f\u0131n\u0131n engellenmesi performans\u0131 etkileyebilir. Is\u0131 emici, bir mod\u00fcl taban\u0131 arac\u0131l\u0131\u011f\u0131yla devrenin bir k\u0131sm\u0131na elektriksel olarak ba\u011fl\u0131ysa, tasar\u0131mda \u0131s\u0131 emiciyi zarars\u0131z bir metal par\u00e7a olarak de\u011ferlendirmek yerine, gerekli yal\u0131t\u0131m ve g\u00fcvenlik mesafeleri dikkate al\u0131nmal\u0131d\u0131r.<\/p>\n

Kurulum geometrisinde do\u011fal ve zorlanm\u0131\u015f konveksiyonu kar\u015f\u0131la\u015ft\u0131r\u0131n<\/h2>\n

Do\u011fal konveksiyon, kanat\u00e7\u0131klar\u0131n y\u00f6n\u00fcne, aral\u0131klar\u0131na ve engelsiz y\u00fckselen hava ak\u0131\u015f\u0131na b\u00fcy\u00fck \u00f6l\u00e7\u00fcde ba\u011fl\u0131d\u0131r. Zorlamal\u0131 konveksiyon ise sadece fan\u0131n serbest hava ak\u0131\u015f\u0131na de\u011fil, \u0131s\u0131 e\u015fanj\u00f6r\u00fcnden ge\u00e7en hava ak\u0131\u015f\u0131na da ba\u011fl\u0131d\u0131r. Bu se\u00e7im, ses, toz, filtre ve bak\u0131m gereksinimlerini de etkiler. Kabinin, kullan\u0131m \u00f6mr\u00fc boyunca ama\u00e7lanan hava ak\u0131\u015f\u0131n\u0131 destekleyip destekleyemeyece\u011fini belirleyin.<\/p>\n

Request a sink performance curve or tested thermal resistance under conditions close to the installed arrangement. If the data uses another heat-source footprint, ask the sink supplier how to correct or test it. Infineon’s heatsink-selection guidance stresses that optimization is iterative and that published thermal resistance is conditional on how it was measured.<\/p>\n

So\u011futma marj\u0131, hesaplanan belirsizlik, ortamdaki a\u015f\u0131r\u0131 ko\u015fullar ve bak\u0131m varsay\u0131mlar\u0131 temelinde gerek\u00e7elendirilmelidir. Aray\u00fcz ve hava ak\u0131\u015f\u0131n\u0131 kontrol etmeden bir so\u011futucuyu gere\u011finden fazla boyutland\u0131rmak, as\u0131l darbo\u011faz\u0131 g\u00f6zden ka\u00e7\u0131rmaya neden olabilir. Buna kar\u015f\u0131l\u0131k, aral\u0131kl\u0131 \u00e7al\u0131\u015fma ko\u015fullar\u0131 i\u00e7in k\u00fc\u00e7\u00fck bir so\u011futucu, ancak ge\u00e7ici \u0131s\u0131 modeli ve tekrarlama s\u0131kl\u0131\u011f\u0131 belgelendi\u011finde g\u00fcvenilir olabilir.<\/p>\n

Sadece ak\u0131m kar\u015f\u0131la\u015ft\u0131rmas\u0131 yerine termal kan\u0131t tablosunu kullan\u0131n<\/h2>\n
Delil par\u00e7as\u0131<\/th>Proje malzemeleri<\/th>Tedarik\u00e7i onayl\u0131yor<\/th><\/tr><\/thead>
Elektriksel g\u00f6rev<\/td>Dalga \u015fekli, iletim d\u00fczeni, a\u015f\u0131r\u0131 y\u00fck<\/td>Cihaz kayb\u0131n\u0131n kesin tespit y\u00f6ntemi<\/td><\/tr>
Ba\u011flant\u0131 s\u0131n\u0131r\u0131<\/td>Tasar\u0131m \u00e7al\u0131\u015fma aral\u0131\u011f\u0131<\/td>Kesin model s\u0131cakl\u0131k s\u0131n\u0131r\u0131<\/td><\/tr>
Dahili termal yol<\/td>Lavaboya cihaz\u0131n yerle\u015ftirilmesi<\/td>Ba\u011flant\u0131 noktas\u0131-kasa verileri<\/td><\/tr>
Aray\u00fcz<\/td>Montaj s\u00fcreci<\/td>\u0130zin verilen TIM ve montaj talimatlar\u0131<\/td><\/tr>
Su-hava yolu<\/td>Ortam ve hava ak\u0131\u015f\u0131 d\u00fczenlemesi<\/td>\u0130lgili ko\u015fullarda lavabonun performans\u0131<\/td><\/tr><\/tbody><\/table><\/figure>\n

T\u00fcm girdi verilerini bir \u00e7izim revizyonuna ve bir sipari\u015f koduna ba\u011fl\u0131 tutun. SCR topolojisi, mod\u00fcl paketi, hava yolu veya kontrol dalga formundaki bir de\u011fi\u015fiklik, orijinal \u0131s\u0131 hesaplamas\u0131n\u0131 ge\u00e7ersiz k\u0131labilir. Is\u0131 yolu farkl\u0131ysa, tedarik birimi yaln\u0131zca ak\u0131m ve gerilim etiketlerine dayanarak \u201ce\u015fde\u011fer\u201d mod\u00fcllerle ikame etmemelidir.<\/p>\n

\"SCR
Her bir termal tasar\u0131m varsay\u0131m\u0131n\u0131 do\u011frulamak i\u00e7in gerekli belgeleri kaydedin.<\/figcaption><\/figure>\n

Temsili y\u00fck ko\u015fullar\u0131nda \u00f6l\u00e7\u00fcm yaparak do\u011frulay\u0131n<\/h2>\n

Calculation screens candidates; installed testing verifies the model. Define the operating cycle, enclosure condition and measurement points before the test. A case or sink temperature reading is meaningful only when its location matches the calculation reference. If direct junction measurement is unavailable, use the manufacturer’s approved method to infer junction temperature from measured values and losses.<\/p>\n

S\u00fcrekli y\u00fcksek y\u00fck durumlar\u0131n\u0131 ve \u00f6nemli ge\u00e7ici veya tekrarlanan d\u00f6ng\u00fc durumlar\u0131n\u0131 kontrol edin. Fan h\u0131z\u0131n\u0131, filtrenin durumunu, ortam s\u0131cakl\u0131\u011f\u0131n\u0131 ve yak\u0131ndaki \u0131s\u0131 kaynaklar\u0131n\u0131 belgelendirin. \u00d6l\u00e7\u00fclen s\u0131cakl\u0131k tahminlerden farkl\u0131ysa, kay\u0131p varsay\u0131mlar\u0131n\u0131, aray\u00fcz uygulamas\u0131n\u0131, hava ak\u0131\u015f\u0131n\u0131 ve sens\u00f6r konumunu inceleyin. Kan\u0131t olmadan tek bir varsay\u0131lan direnci ayarlayarak tutars\u0131zl\u0131\u011f\u0131 gizlemekten ka\u00e7\u0131n\u0131n.<\/p>\n

\u00dcretim montaj kontrollerini dahil edin. Bir m\u00fchendis taraf\u0131ndan \u00f6zenle monte edilen bir prototip, bile\u015fik kaplamas\u0131 veya sabitleme s\u0131ras\u0131 farkl\u0131l\u0131k g\u00f6sterdi\u011finde, tekrarlanan bir \u00fcretimden farkl\u0131 performans g\u00f6sterebilir. \u00dcretim sahas\u0131nda uygulanabilir denetim noktalar\u0131n\u0131 belirleyin ve ard\u0131ndan do\u011frulanm\u0131\u015f montaj s\u00fcrecini \u00fcr\u00fcn kay\u0131tlar\u0131nda saklay\u0131n.<\/p>\n

SCR mod\u00fcl\u00fc talebiyle birlikte nelerin g\u00f6nderilmesi gerekir?<\/h2>\n

Devre topolojisini, dalga formunu ve g\u00f6rev d\u00f6ng\u00fcs\u00fcn\u00fc, gerekli engelleme gerilimini, olas\u0131 a\u015f\u0131r\u0131 y\u00fck olaylar\u0131n\u0131, mevcut so\u011futucu yuvas\u0131n\u0131, ortam ve hava ak\u0131\u015f\u0131 ko\u015fullar\u0131n\u0131, montaj d\u00fczenini ve gerekli belgeleri g\u00f6nderin. Mod\u00fcl\u00fcn kesin kay\u0131p ve termal verilerini, mekanik \u00e7izimini, aray\u00fcz k\u0131lavuzunu ve kurulum talimatlar\u0131n\u0131 talep edin. \u015eu SCR\/trist\u00f6r mod\u00fcl\u00fc kategorisi<\/a> \u00fcr\u00fcn gruplar\u0131n\u0131n belirlenmesine yard\u0131mc\u0131 olur; se\u00e7im ise modele g\u00f6re yap\u0131l\u0131r.<\/p>\n

Kaynak bilgisi ba\u011flam\u0131 hakk\u0131nda bilgi edinmek i\u00e7in \u015funu inceleyin: MTA \u00e7ift SCR ailesi<\/a>, MTC SCR ailesi<\/a> veya MTC y\u00fcksek ak\u0131m serisi<\/a> uygun oldu\u011fu \u015fekilde. Bu sayfalar, g\u00fcncel kay\u0131p e\u011frilerinin veya montaj k\u0131lavuzlar\u0131n\u0131n yerine ge\u00e7mez. Sorunuz RITOKS<\/a> bir sipari\u015f kodunu dondurmadan \u00f6nce belirli belge grubu i\u00e7in.<\/p>\n

S\u0131k sorulan sorular<\/h2>\n

Bir so\u011futucu, SCR\u2019nin ak\u0131m de\u011ferine g\u00f6re se\u00e7ilebilir mi?<\/h3>\n

Hay\u0131r. Ak\u0131m de\u011feri yaln\u0131zca bir cihaz tan\u0131mlay\u0131c\u0131s\u0131d\u0131r. Ger\u00e7ek dalga \u015fekli, kay\u0131plar, ortam ko\u015fullar\u0131, aray\u00fcz ve so\u011futma d\u00fczeni, termal gereksinimi belirler.<\/p>\n

Bir fan eklemek k\u00e2r marj\u0131n\u0131n artmas\u0131n\u0131 garanti eder mi?<\/h3>\n

Ancak, kurulum ko\u015fullar\u0131 alt\u0131nda ilgili kanat\u00e7\u0131k y\u00fczeylerine yeterli hava ak\u0131\u015f\u0131 sa\u011flanmas\u0131 durumunda. Filtreleri, t\u0131kan\u0131kl\u0131klar\u0131, fan\u0131n \u00e7al\u0131\u015fma durumunu ve so\u011futucunun performans verilerini kontrol edin.<\/p>\n

Nihai kabul kan\u0131t\u0131 nedir?<\/h3>\n

Modele \u00f6zg\u00fc bir hesaplama, kontroll\u00fc montaj y\u00f6ntemi ve temsili s\u0131cakl\u0131k testi bir araya geldi\u011finde, savunulabilir bir karar ortaya \u00e7\u0131kar. Hi\u00e7bir belge bu \u00fc\u00e7\u00fcn\u00fc birden kan\u0131tlayamaz.<\/p>\n

Sonu\u00e7 olarak<\/h2>\n

\u00d6ncelikle elektriksel kayb\u0131 belirleyin, ard\u0131ndan t\u00fcm termal yolu izleyin ve monte edilmi\u015f d\u00fczene\u011fi do\u011frulay\u0131n. Bir SCR mod\u00fcl\u00fc\/\u0131s\u0131 emici \u00e7ifti, sistem d\u00fczeyinde al\u0131nmas\u0131 gereken bir karard\u0131r. Katalog varsay\u0131mlar\u0131yla doldurmak yerine, modele \u00f6zg\u00fc \u00e7\u00f6z\u00fclmemi\u015f termal verileri teklif talebinde (RFQ) g\u00f6r\u00fcn\u00fcr tutun. Nihai \u00e7izimde, se\u00e7ilen mod\u00fcl, so\u011futucu, aray\u00fcz malzemesi, hava ak\u0131\u015f y\u00f6n\u00fc ve do\u011frulanm\u0131\u015f test ko\u015fullar\u0131 tek bir kontroll\u00fc montaj olarak belirtilmelidir.<\/p>\n

Kaynak\u00e7a<\/h2>\n