BOURNS MF-USML380-2 Resettable Fuses - PPTC 6V 3.8A-HD 50A MAX
The BOURNS MF-USML380-2 is a high-reliability, resettable polymer PTC fuse designed for circuit protection in various electronic applications. Manufactured in China, this device offers robust overcurrent protection with a maximum voltage rating of 6V and a maximum current of 3.8A. It is RoHS compliant and packaged on a reel for easy automated placement.
Important Notice: This product is RoHS compliant and considered halogen-free under specified conditions. Users should verify device performance in their specific applications. Refer to the legal disclaimer at Bourns Legal Disclaimer.
I'm particularly impressed with how carefully the header pins are packed for the RP2350-PiZero, they arrived in perfect condition without any bent pins, which has been a persistent issue with other competitors. This attention to packaging detail really stands out.
I also received the latest A4 revision of the RP2350, which shows you maintain current inventory, that's really valuable for customers who want the most up to date components.
The delivery was quick and hassle free throughout. I'll definitely be recommending you to others!
App feedback: The discounts offered through the app are a nice bonus, but the component search function could be improved to match the ease of use on the website version. The rest of the app functions work well.
{"id":10019817455933,"title":"MF-USML380-2","handle":"mf-usml380-2","description":"\u003ch3\u003eBOURNS MF-USML380-2 Resettable Fuses - PPTC 6V 3.8A-HD 50A MAX\u003c\/h3\u003e\n\n\u003cp\u003eThe BOURNS MF-USML380-2 is a high-reliability, resettable polymer PTC fuse designed for circuit protection in various electronic applications. Manufactured in China, this device offers robust overcurrent protection with a maximum voltage rating of 6V and a maximum current of 3.8A. It is RoHS compliant and packaged on a reel for easy automated placement.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: MF-USML380-2\u003c\/li\u003e\n \u003cli\u003eManufacturer: BOURNS\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel\u003c\/li\u003e\n \u003cli\u003eProduct Category: Circuit Protection | PPTC Resettable Fuses\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eMaximum Voltage: 6V\u003c\/li\u003e\n \u003cli\u003eHold Current: 3.8A at 23°C\u003c\/li\u003e\n \u003cli\u003eMaximum Trip Current: 8.00A at 23°C\u003c\/li\u003e\n \u003cli\u003eResistance: 0.0020 Ohms at 23°C\u003c\/li\u003e\n \u003cli\u003eMaximum Time to Trip: 19 seconds at 23°C\u003c\/li\u003e\n \u003cli\u003eTripped Power Dissipation: 0.8 Watts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Specifications:\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eV max. Volts\u003c\/th\u003e\n \u003cth\u003eI max. Amps\u003c\/th\u003e\n \u003cth\u003eIhold\u003c\/th\u003e\n \u003cth\u003eItrip\u003c\/th\u003e\n \u003cth\u003eResistance\u003c\/th\u003e\n \u003cth\u003eMax. Time To Trip\u003c\/th\u003e\n \u003cth\u003eTripped Power Dissipation\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMF-USML380\u003c\/td\u003e\n \u003ctd\u003e6\u003c\/td\u003e\n \u003ctd\u003e50\u003c\/td\u003e\n \u003ctd\u003e3.80A\u003c\/td\u003e\n \u003ctd\u003e8.00A\u003c\/td\u003e\n \u003ctd\u003e0.0020 Ohms\u003c\/td\u003e\n \u003ctd\u003e19 seconds\u003c\/td\u003e\n \u003ctd\u003e0.8 Watts\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Mechanical Characteristics:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eOperating Temperature: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eStorage Conditions: \n \u003cul\u003e\n \u003cli\u003eBefore Opening: +40°C max, 70% RH max\u003c\/li\u003e\n \u003cli\u003eAfter Opening: +40°C max, 10% RH max\u003c\/li\u003e\n \u003cli\u003eFloor Condition After Opening: +30°C max, 60% RH max within 4 weeks\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003ePassive Aging: ±10% resistance change after 1000 hours at +85°C\u003c\/li\u003e\n \u003cli\u003eHumidity Aging: ±15% resistance change after 100 hours at +85°C, 85% RH\u003c\/li\u003e\n \u003cli\u003eThermal Shock: ±30% resistance change after 20 cycles between +85°C and -40°C\u003c\/li\u003e\n \u003cli\u003eVibration \u0026amp; Solvent Resistance: No change (MIL-STD-202, MIL-STD-883C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTest \u0026amp; Certification:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eUL File Number: E174545\u003c\/li\u003e\n \u003cli\u003eCertifications: R 50302873\u003c\/li\u003e\n \u003cli\u003eRoHS Directive 2015\/863 Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Areas:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eThermal protection for Li-ion and polymer battery packs\u003c\/li\u003e\n \u003cli\u003eGame consoles\u003c\/li\u003e\n \u003cli\u003ePC motherboards\u003c\/li\u003e\n \u003cli\u003eUSB port protection - USB 2.0, 3.0 \u0026amp; OTG\u003c\/li\u003e\n \u003cli\u003eMobile phones\u003c\/li\u003e\n \u003cli\u003eDigital cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed specifications and datasheet, please visit \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/mfusml.pdf\" target=\"_blank\"\u003eMF-USML380-2 Datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is RoHS compliant and considered halogen-free under specified conditions. Users should verify device performance in their specific applications. Refer to the legal disclaimer at \u003ca href=\"https:\/\/www.bourns.com\/docs\/legal\/disclaimer.pdf\" target=\"_blank\"\u003eBourns Legal Disclaimer\u003c\/a\u003e.\u003c\/p\u003e","published_at":"2025-08-11T17:20:31+05:30","created_at":"2025-08-11T17:20:31+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["50A","6V","8A","BOURN","Circuit","IMPORT_CSV","PPTC","WLDM"],"price":3465,"price_min":3465,"price_max":3465,"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":50608492511549,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"MF-USML380-2","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"MF-USML380-2","public_title":null,"options":["Default Title"],"price":3465,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"MF-USML380-2","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-USML380-2_49868051_8568606e.jpg?v=1754913035"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-USML380-2_49868051_8568606e.jpg?v=1754913035","options":["Title"],"media":[{"alt":null,"id":45783840915773,"position":1,"preview_image":{"aspect_ratio":1.485,"height":200,"width":297,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-USML380-2_49868051_8568606e.jpg?v=1754913035"},"aspect_ratio":1.485,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-USML380-2_49868051_8568606e.jpg?v=1754913035","width":297}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBOURNS MF-USML380-2 Resettable Fuses - PPTC 6V 3.8A-HD 50A MAX\u003c\/h3\u003e\n\n\u003cp\u003eThe BOURNS MF-USML380-2 is a high-reliability, resettable polymer PTC fuse designed for circuit protection in various electronic applications. Manufactured in China, this device offers robust overcurrent protection with a maximum voltage rating of 6V and a maximum current of 3.8A. It is RoHS compliant and packaged on a reel for easy automated placement.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: MF-USML380-2\u003c\/li\u003e\n \u003cli\u003eManufacturer: BOURNS\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel\u003c\/li\u003e\n \u003cli\u003eProduct Category: Circuit Protection | PPTC Resettable Fuses\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eMaximum Voltage: 6V\u003c\/li\u003e\n \u003cli\u003eHold Current: 3.8A at 23°C\u003c\/li\u003e\n \u003cli\u003eMaximum Trip Current: 8.00A at 23°C\u003c\/li\u003e\n \u003cli\u003eResistance: 0.0020 Ohms at 23°C\u003c\/li\u003e\n \u003cli\u003eMaximum Time to Trip: 19 seconds at 23°C\u003c\/li\u003e\n \u003cli\u003eTripped Power Dissipation: 0.8 Watts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Specifications:\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eV max. Volts\u003c\/th\u003e\n \u003cth\u003eI max. Amps\u003c\/th\u003e\n \u003cth\u003eIhold\u003c\/th\u003e\n \u003cth\u003eItrip\u003c\/th\u003e\n \u003cth\u003eResistance\u003c\/th\u003e\n \u003cth\u003eMax. Time To Trip\u003c\/th\u003e\n \u003cth\u003eTripped Power Dissipation\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMF-USML380\u003c\/td\u003e\n \u003ctd\u003e6\u003c\/td\u003e\n \u003ctd\u003e50\u003c\/td\u003e\n \u003ctd\u003e3.80A\u003c\/td\u003e\n \u003ctd\u003e8.00A\u003c\/td\u003e\n \u003ctd\u003e0.0020 Ohms\u003c\/td\u003e\n \u003ctd\u003e19 seconds\u003c\/td\u003e\n \u003ctd\u003e0.8 Watts\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Mechanical Characteristics:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eOperating Temperature: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eStorage Conditions: \n \u003cul\u003e\n \u003cli\u003eBefore Opening: +40°C max, 70% RH max\u003c\/li\u003e\n \u003cli\u003eAfter Opening: +40°C max, 10% RH max\u003c\/li\u003e\n \u003cli\u003eFloor Condition After Opening: +30°C max, 60% RH max within 4 weeks\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003ePassive Aging: ±10% resistance change after 1000 hours at +85°C\u003c\/li\u003e\n \u003cli\u003eHumidity Aging: ±15% resistance change after 100 hours at +85°C, 85% RH\u003c\/li\u003e\n \u003cli\u003eThermal Shock: ±30% resistance change after 20 cycles between +85°C and -40°C\u003c\/li\u003e\n \u003cli\u003eVibration \u0026amp; Solvent Resistance: No change (MIL-STD-202, MIL-STD-883C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTest \u0026amp; Certification:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eUL File Number: E174545\u003c\/li\u003e\n \u003cli\u003eCertifications: R 50302873\u003c\/li\u003e\n \u003cli\u003eRoHS Directive 2015\/863 Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Areas:\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eThermal protection for Li-ion and polymer battery packs\u003c\/li\u003e\n \u003cli\u003eGame consoles\u003c\/li\u003e\n \u003cli\u003ePC motherboards\u003c\/li\u003e\n \u003cli\u003eUSB port protection - USB 2.0, 3.0 \u0026amp; OTG\u003c\/li\u003e\n \u003cli\u003eMobile phones\u003c\/li\u003e\n \u003cli\u003eDigital cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed specifications and datasheet, please visit \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/mfusml.pdf\" target=\"_blank\"\u003eMF-USML380-2 Datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is RoHS compliant and considered halogen-free under specified conditions. Users should verify device performance in their specific applications. Refer to the legal disclaimer at \u003ca href=\"https:\/\/www.bourns.com\/docs\/legal\/disclaimer.pdf\" target=\"_blank\"\u003eBourns Legal Disclaimer\u003c\/a\u003e.\u003c\/p\u003e"}
