Introducing the OHMITE MANUFACTURING 40F20KE wirewound resistor, a reliable and economical component designed for various electrical and electronic applications. This through-hole resistor features conformal silicone-ceramic coating and all-welded construction, ensuring stability under high temperature conditions and resistance to thermal shock.
Economical wirewound resistor suitable for commercial, industrial, and communications equipment
Conformal silicone-ceramic coating with ceramic core for enhanced thermal stability
All-welded construction for durability and reliability
Low temperature coefficient: under 1Ω: ±90 ppm/°C, 1Ω to 9.99Ω: ±50 ppm/°C, 10Ω and over: ±20 ppm/°C
Power rating: 10 watts at +25°C free air, with overload capability of 5 times rated wattage for 5 seconds (under 5W) or 10 times rated wattage for 5 seconds (5W and over)
RoHS compliant; add “E” suffix to part number for RoHS version
Electrical Specifications
Parameter
Value
Tolerance
±1% (F), ±5% (J)
Power Rating
10W @ +25°C
Temperature Coefficient
Under 1Ω: ±90 ppm/°C; 1Ω-9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C
Derating
Linearly from 100% @ +25°C to 0% @ +275°C
Resistance Range and Tolerances
Wattage & Tolerance
Resistance Values
1% Tolerance
from R10 to 40KΩ
5% Tolerance
from R15 to 50KΩ
For detailed resistance values and specifications, please refer to the datasheet.
Note: The datasheet was not processed; please search the internet for the part number 40F20KE for more details.
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This through-hole resistor features conformal silicone-ceramic coating and all-welded construction, ensuring stability under high temperature conditions and resistance to thermal shock.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 40F20KE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e OHMITE MANUFACTURING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e MX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-oi\/45njr10.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEconomical wirewound resistor suitable for commercial, industrial, and communications equipment\u003c\/li\u003e\n\u003cli\u003eConformal silicone-ceramic coating with ceramic core for enhanced thermal stability\u003c\/li\u003e\n\u003cli\u003eAll-welded construction for durability and reliability\u003c\/li\u003e\n\u003cli\u003eLow temperature coefficient: under 1Ω: ±90 ppm\/°C, 1Ω to 9.99Ω: ±50 ppm\/°C, 10Ω and over: ±20 ppm\/°C\u003c\/li\u003e\n\u003cli\u003ePower rating: 10 watts at +25°C free air, with overload capability of 5 times rated wattage for 5 seconds (under 5W) or 10 times rated wattage for 5 seconds (5W and over)\u003c\/li\u003e\n\u003cli\u003eRoHS compliant; add “E” suffix to part number for RoHS version\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±1% (F), ±5% (J)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e10W @ +25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Coefficient\u003c\/td\u003e\n\u003ctd\u003eUnder 1Ω: ±90 ppm\/°C; 1Ω-9.99Ω: ±50 ppm\/°C; 10Ω and over: ±20 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDerating\u003c\/td\u003e\n\u003ctd\u003eLinearly from 100% @ +25°C to 0% @ +275°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eResistance Range and Tolerances\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eWattage \u0026amp; Tolerance\u003c\/th\u003e\n\u003cth\u003eResistance Values\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1% Tolerance\u003c\/td\u003e\n\u003ctd\u003efrom R10 to 40KΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5% Tolerance\u003c\/td\u003e\n\u003ctd\u003efrom R15 to 50KΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed resistance values and specifications, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-oi\/45njr10.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number 40F20KE for more details.\u003c\/p\u003e","published_at":"2025-08-11T01:43:26+05:30","created_at":"2025-08-11T01:43:26+05:30","vendor":"Waldom Electonics","type":"Resistors","tags":["IMPORT_CSV","OHMIT","Resistors","Wire","WLDM"],"price":31044,"price_min":31044,"price_max":31044,"available":false,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50582819373373,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"40F20KE","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"40F20KE","public_title":null,"options":["Default Title"],"price":31044,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"40F20KE","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/40F20KE_12020672_9796e7e4.jpg?v=1754856809"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/40F20KE_12020672_9796e7e4.jpg?v=1754856809","options":["Title"],"media":[{"alt":null,"id":45768676475197,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/40F20KE_12020672_9796e7e4.jpg?v=1754856809"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/40F20KE_12020672_9796e7e4.jpg?v=1754856809","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eOHMITE MANUFACTURING 40F20KE Wirewound Resistor - Through Hole, 10W, 20KΩ, 1% Tolerance\u003c\/h3\u003e\n\u003cp\u003eIntroducing the OHMITE MANUFACTURING 40F20KE wirewound resistor, a reliable and economical component designed for various electrical and electronic applications. This through-hole resistor features conformal silicone-ceramic coating and all-welded construction, ensuring stability under high temperature conditions and resistance to thermal shock.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 40F20KE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e OHMITE MANUFACTURING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e MX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-oi\/45njr10.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEconomical wirewound resistor suitable for commercial, industrial, and communications equipment\u003c\/li\u003e\n\u003cli\u003eConformal silicone-ceramic coating with ceramic core for enhanced thermal stability\u003c\/li\u003e\n\u003cli\u003eAll-welded construction for durability and reliability\u003c\/li\u003e\n\u003cli\u003eLow temperature coefficient: under 1Ω: ±90 ppm\/°C, 1Ω to 9.99Ω: ±50 ppm\/°C, 10Ω and over: ±20 ppm\/°C\u003c\/li\u003e\n\u003cli\u003ePower rating: 10 watts at +25°C free air, with overload capability of 5 times rated wattage for 5 seconds (under 5W) or 10 times rated wattage for 5 seconds (5W and over)\u003c\/li\u003e\n\u003cli\u003eRoHS compliant; add “E” suffix to part number for RoHS version\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTolerance\u003c\/td\u003e\n\u003ctd\u003e±1% (F), ±5% (J)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e10W @ +25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Coefficient\u003c\/td\u003e\n\u003ctd\u003eUnder 1Ω: ±90 ppm\/°C; 1Ω-9.99Ω: ±50 ppm\/°C; 10Ω and over: ±20 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDerating\u003c\/td\u003e\n\u003ctd\u003eLinearly from 100% @ +25°C to 0% @ +275°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eResistance Range and Tolerances\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eWattage \u0026amp; Tolerance\u003c\/th\u003e\n\u003cth\u003eResistance Values\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1% Tolerance\u003c\/td\u003e\n\u003ctd\u003efrom R10 to 40KΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5% Tolerance\u003c\/td\u003e\n\u003ctd\u003efrom R15 to 50KΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed resistance values and specifications, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-oi\/45njr10.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet was not processed; please search the internet for the part number 40F20KE for more details.\u003c\/p\u003e"}
