[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-563054-105":59,"doc-detail-563054-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","rch-power-resistor-for-mounting-onto-a-heatsink-thick-film-technology","RCH - Power Resistor for Mounting Onto a Heatsink - Thick Film Technology","","RCH thick film power resistors are designed for mounting onto a heatsink, offering high overload capability up to 2500 V RMS and a wide resistance range from 0.24 Ω to 1 MΩ. The series covers 5 W to 50 W, with high insulation resistance of 10^6 MΩ and thermal capacity up to 0.8 °C/W. Non-inductive design supports high-frequency operation, alongside specified environmental, electrical, and mechanical performance parameters and mounting recommendations.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/rch-power-resistor-for-mounting-onto-a-heatsink-thick-film-technology/563054/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/rch-power-resistor-for-mounting-onto-a-heatsink-thick-film-technology/563054.png","ImageObject",300,407,{"name":92,"@type":93},"MrHarris58","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-13","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What power range and overload capability do the RCH resistors provide?","Question",{"text":112,"@type":113},"The RCH series is specified for 5 W to 50 W, with high overload capabilities up to 2500 V RMS.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which models are covered by the RCH series and how are they organized?",{"text":117,"@type":113},"The document lists four models: RCH 5, RCH 10, RCH 25, and RCH 50, each with corresponding dimensions and specifications.",{"name":119,"@type":110,"acceptedAnswer":120},"What are the key recommendations for mounting RCH resistors on a heatsink?",{"text":121,"@type":113},"The contacting surfaces must be carefully cleaned, the heatsink flatness should be within 0.05 mm to 0.1 mm per 100 mm, and contact roughness is addressed using silicone grease. The resistor is fastened using two screws under pressure control.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},563054,1791833654,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},687212988360,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","RCH  \n[www.vishay.com](www.vishay.com Vishay Sfernice)[ Vishay Sfernice](www.vishay.com Vishay Sfernice)  \nPower Resistor, for Mounting Onto a Heatsink Thick Film Technology  \nFEATURES  \n• Compliant with requirement \\#26 of NF-EN45545-2  \n• 5 W to 50 W  \n• High power rating  \n• High overload capabilities up to 2500 V RMS  \n• Wide resistance range from 0.24 􀀺 to 1 M􀀺  \n• High thermal capacity up to 0.8 °C/W  \n• Easy mounting  \n• Reduced size and weight  \n• High insulation: 106 M􀀺  \n• Material categorization: for definitions of compliance [please see](please see www.vishay.com/doc?99912)[ www.vishay.com/doc?99912](please see www.vishay.com/doc?99912)  \nManufactured in cermet thick film technology, these power resistors exhibit remarkable characteristics and the series includes 4 types ranging from 5 W to 50 W. Designed to be mounted onto a heatsink, the resistors can bear high short time overloadsand 3 types of terminations are available. The resistors are non inductive and are particularly suitable for high frequency operation and cut-out circuits.  \n\n| DIMENSIONS in millimeters |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- |\n| |  | |  | |  | |  |\n| MODEL | RCH5 |  | RCH10 |  | RCH25 |  | RCH50 |\n| L | 16.6 |  | 19 |  | 28 |  | 47.8 |\n| W | 9 |  | 11 |  | 14 |  | 15.5 |\n| H | 16.4 |  | 20.6 |  | 27.5 |  | 29.5 |\n| P Leads Pitch | 10.2 |  | 12.7 |  | 18.3 |  | 30.5 |\n| F Connection Pitch | 11.3 |  | 14.3 |  | 18.3 |  | 39.7 |\n| T | 12.5 |  | 15.9 |  | 19.8 |  | 21.4 |\n| S | 5.3 |  | 5 |  | 7.7 |  | 8 |\n| Ø D | 2.4 |  | 2.4 |  | 3.2 |  | 3.2 |\n| Weight (g) | 4 |  | 5 |  | 7 |  | 12 |\n\nNote  \n• Tolerances unless stated: ± 0.3 mm  \nRevision: 02-Sep-2020 1 Document Number: 50006  \nFor technical questions, contact: [sferfixedresistors@vishay.com](sferfixedresistors@vishay.com)  \nTHIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  \nARE SUBJECT TO SPECIFIC DISCLAIMERS, [SET FORTH AT](SET FORTH AT www.vishay.com/doc?91000)[ ](SET FORTH AT www.vishay.com/doc?91000)[www.vishay.com/doc?91000](SET FORTH AT www.vishay.com/doc?91000)  \nRCH  \n[www.vishay.com](www.vishay.com Vishay Sfernice)[ Vishay Sfernice](www.vishay.com Vishay Sfernice)  \n\n| STANDARD ELECTRICAL SPECIFICATIONS |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- |\n| MODEL | RESISTANCE\u003Cbr>RANGE\u003Cbr>􀀺 | RATED POWER\u003Cbr>P25 °C\u003Cbr>W | TOLERANCE\u003Cbr>± % | TEMPERATURE\u003Cbr>COEFFICIENT\u003Cbr>± ppm/°C | SERIES |\n| RCH 5 | 0.24 to 1M | 5 | 1, 2, 5, 10 | 150, 250 | E24 range |\n| RCH 10 | 0.24 to 1M | 10 | 1, 2, 5, 10 | 150, 250 | E24 range |\n| RCH 25 | 0.24 to 1M | 25 | 1, 2, 5, 10 | 150, 250 | E24 range |\n| RCH 50 | 0.24 to 1M | 50 | 1, 2, 5, 10 | 150, 250 | E24 range |\n\n\n| MECHANICAL SPECIFICATIONS |  |\n| --- | --- |\n| Mechanical Protection | Insulated case |\n| Resistive Element | Cermet |\n| Substrate | Alumina |\n| Connections | Tinned copper alloy |\n\n\n| ENVIRONMENTAL SPECIFICATIONS |  |\n| --- | --- |\n| Temperature Range | -55 °C to +125 °C |\n| Climatic Category | 55 / 125 / 56 |\n| Flammability | IEC 60695-11-5 2 applications 30 s separated by 60 s |\n\n\n| TECHNICAL SPECIFICATIONS |  |\n| --- | --- |\n| Dissipation and Associated | Onto a heatsink |\n| Power Rating:\u003Cbr>Chassis Mounted\u003Cbr>Unmounted | 5 W to 50 W\u003Cbr>2 W to 5.5 W |\n| Temperature Coefficient | ± 150 ppm/°C |\n| Insulation Resistance | 106 M􀀺 |\n| Total Inductance | 􀁤 0.1 μH |\n\n\n| PERFORMANCE |  |  |\n| --- | --- | --- |\n| TESTS | CONDITIONS | REQUIREMENTS |\n| Momentary Overload | NF EN140000 CEI 115_1\u003Cbr>2 Pr/5 s\u003Cbr>US \u003C 1.5 UL | \u003C ± (0 .25 % + 0.05 􀀺) |\n| Rapid Temperature Change | NF EN140000 125 °C CEI 68215 Test Na\u003Cbr>5 cycles\u003Cbr>-55 °C to +125 °C | \u003C ± (0 .25 % + 0.05 􀀺) |\n| Load Life | NF EN140000 CEI 115_1 1000 h Pr at +25 °C | \u003C ± (0 .5 % + 0.05 􀀺) |\n| Humidity (Steady State) | 56 days RH 95 %\u003Cbr>MIL-STD-202 Method 103 B and C | \u003C ± (0 .5 % + 0.05 􀀺) |\n\n\n| RESISTANCE VALUE IN RELATION TO TOLERANCE AND TCR |  |  |\n| --- | --- | --- |\n| Resistance Values \u003C 1","cbCaivurY2HMx2ci","https://ap.wps.com/l/cbCaivurY2HMx2ci","pdf",133051,"English","# Features\n## Compliance and performance highlights\n# Dimensions\n## Models RCH5 to RCH50\n# Standard electrical specifications\n## Resistance range, rated power, tolerance\n# Mechanical specifications\n## Materials and protection\n# Environmental specifications\n## Temperature and flammability\n# Technical specifications\n## Inductance, insulation resistance\n# Performance tests\n## Overload, thermal cycling, load life, humidity\n# Special features\n## Thermal resistance and limiting voltages\n# Recommendations for mounting onto a heatsink\n## Cleaning, flatness, surface roughness, fastening","[{\"question\":\"What power range and overload capability do the RCH resistors provide?\",\"answer\":\"The RCH series is specified for 5 W to 50 W, with high overload capabilities up to 2500 V RMS.\"},{\"question\":\"Which models are covered by the RCH series and how are they organized?\",\"answer\":\"The document lists four models: RCH 5, RCH 10, RCH 25, and RCH 50, each with corresponding dimensions and specifications.\"},{\"question\":\"What are the key recommendations for mounting RCH resistors on a heatsink?\",\"answer\":\"The contacting surfaces must be carefully cleaned, the heatsink flatness should be within 0.05 mm to 0.1 mm per 100 mm, and contact roughness is addressed using silicone grease. The resistor is fastened using two screws under pressure control.\"}]","RCH - Power Resistor for Mounting Onto a Heatsink - Thick Film Technology | PDF",1791810423,15]