The BOURNS MF-R900 is a high-reliability, resettable PPTC fuse designed for circuit protection in low voltage applications. Manufactured in China, this device offers a robust solution for safeguarding electronic systems against overcurrent conditions.
The MF-R900 series PPTC resettable fuses are designed to protect electronic circuits from overcurrent conditions with the following key features:
Maximum Voltage: 30 VDC
Hold Current (Ihold): 9 A
Trip Current (Itrip): 18 A
Time to Trip: 20 seconds at specified conditions
Initial Resistance: 0.005 Ohms at 23°C
Post-Trip Resistance: 0.01 Ohms at 23°C
Maximum Power Dissipation: 4.2 Watts at 23°C
Operating Temperature Range: -40°C to +85°C
RoHS Compliant
Designed for applications such as computers, peripherals, and general electronics, this PPTC fuse provides reliable circuit protection with a resettable feature that eliminates the need for replacement after fault conditions.
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{"id":10022695829821,"title":"MF-R900","handle":"mf-r900","description":"\u003ch3\u003eBOURNS MF-R900 Resettable Fuse - Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eThe BOURNS MF-R900 is a high-reliability, resettable PPTC fuse designed for circuit protection in low voltage applications. Manufactured in China, this device offers a robust solution for safeguarding electronic systems against overcurrent conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MF-R900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOURNS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA\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\u003eProduct Type:\u003c\/strong\u003e Circuit Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Circuit Protection | PPTC Resettable Fuses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe MF-R900 series PPTC resettable fuses are designed to protect electronic circuits from overcurrent conditions with the following key features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum Voltage: 30 VDC\u003c\/li\u003e\n\u003cli\u003eHold Current (Ihold): 9 A\u003c\/li\u003e\n\u003cli\u003eTrip Current (Itrip): 18 A\u003c\/li\u003e\n\u003cli\u003eTime to Trip: 20 seconds at specified conditions\u003c\/li\u003e\n\u003cli\u003eInitial Resistance: 0.005 Ohms at 23°C\u003c\/li\u003e\n\u003cli\u003ePost-Trip Resistance: 0.01 Ohms at 23°C\u003c\/li\u003e\n\u003cli\u003eMaximum Power Dissipation: 4.2 Watts at 23°C\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned for applications such as computers, peripherals, and general electronics, this PPTC fuse provides reliable circuit protection with a resettable feature that eliminates the need for replacement after fault conditions.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVmax (VDC)\u003c\/th\u003e\n\u003cth\u003eImax (A)\u003c\/th\u003e\n\u003cth\u003eIhold (A)\u003c\/th\u003e\n\u003cth\u003eItrip (A)\u003c\/th\u003e\n\u003cth\u003eInitial Resistance (Ω)\u003c\/th\u003e\n\u003cth\u003ePost-Trip Resistance (Ω)\u003c\/th\u003e\n\u003cth\u003eMax. Time to Trip (seconds)\u003c\/th\u003e\n\u003cth\u003ePower Dissipation (W)\u003c\/th\u003e\n\u003cth\u003eAgency Recognition\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMF-R900\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e0.005\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4.2\u003c\/td\u003e\n\u003ctd\u003ecUL, TÜV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eA Max. (inches)\u003c\/th\u003e\n\u003cth\u003eB Max. (inches)\u003c\/th\u003e\n\u003cth\u003eC (inches)\u003c\/th\u003e\n\u003cth\u003eLead Diameter (inches)\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMF-R900\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e0.016\u003c\/td\u003e\n\u003ctd\u003eSn\/NiCu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed technical data, download the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-bo\/bo-mf-r900.pdf\" target=\"_blank\"\u003eMF-R900 datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The datasheet was not processed. Please search the internet for the part number for more details.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWarning: Cancer and Reproductive Harm. \u003ca href=\"www.P65Warnings.ca.gov\" target=\"_blank\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-13T12:17:31+05:30","created_at":"2025-08-13T12:17:31+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["18 A","30 VDC","9 A","BOURN","Circuit","IMPORT_CSV","PPTC","WLDM"],"price":5128,"price_min":5128,"price_max":5128,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50614958489917,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"MF-R900","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"MF-R900","public_title":null,"options":["Default Title"],"price":5128,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"MF-R900","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-R900_10751920_080decf2.jpg?v=1755067655"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-R900_10751920_080decf2.jpg?v=1755067655","options":["Title"],"media":[{"alt":null,"id":45815501816125,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-R900_10751920_080decf2.jpg?v=1755067655"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-R900_10751920_080decf2.jpg?v=1755067655","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBOURNS MF-R900 Resettable Fuse - Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eThe BOURNS MF-R900 is a high-reliability, resettable PPTC fuse designed for circuit protection in low voltage applications. Manufactured in China, this device offers a robust solution for safeguarding electronic systems against overcurrent conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MF-R900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOURNS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA\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\u003eProduct Type:\u003c\/strong\u003e Circuit Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Circuit Protection | PPTC Resettable Fuses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe MF-R900 series PPTC resettable fuses are designed to protect electronic circuits from overcurrent conditions with the following key features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum Voltage: 30 VDC\u003c\/li\u003e\n\u003cli\u003eHold Current (Ihold): 9 A\u003c\/li\u003e\n\u003cli\u003eTrip Current (Itrip): 18 A\u003c\/li\u003e\n\u003cli\u003eTime to Trip: 20 seconds at specified conditions\u003c\/li\u003e\n\u003cli\u003eInitial Resistance: 0.005 Ohms at 23°C\u003c\/li\u003e\n\u003cli\u003ePost-Trip Resistance: 0.01 Ohms at 23°C\u003c\/li\u003e\n\u003cli\u003eMaximum Power Dissipation: 4.2 Watts at 23°C\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned for applications such as computers, peripherals, and general electronics, this PPTC fuse provides reliable circuit protection with a resettable feature that eliminates the need for replacement after fault conditions.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVmax (VDC)\u003c\/th\u003e\n\u003cth\u003eImax (A)\u003c\/th\u003e\n\u003cth\u003eIhold (A)\u003c\/th\u003e\n\u003cth\u003eItrip (A)\u003c\/th\u003e\n\u003cth\u003eInitial Resistance (Ω)\u003c\/th\u003e\n\u003cth\u003ePost-Trip Resistance (Ω)\u003c\/th\u003e\n\u003cth\u003eMax. Time to Trip (seconds)\u003c\/th\u003e\n\u003cth\u003ePower Dissipation (W)\u003c\/th\u003e\n\u003cth\u003eAgency Recognition\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMF-R900\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e0.005\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4.2\u003c\/td\u003e\n\u003ctd\u003ecUL, TÜV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eA Max. (inches)\u003c\/th\u003e\n\u003cth\u003eB Max. (inches)\u003c\/th\u003e\n\u003cth\u003eC (inches)\u003c\/th\u003e\n\u003cth\u003eLead Diameter (inches)\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMF-R900\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e0.016\u003c\/td\u003e\n\u003ctd\u003eSn\/NiCu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed technical data, download the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-bo\/bo-mf-r900.pdf\" target=\"_blank\"\u003eMF-R900 datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The datasheet was not processed. Please search the internet for the part number for more details.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWarning: Cancer and Reproductive Harm. \u003ca href=\"www.P65Warnings.ca.gov\" target=\"_blank\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e"}
