The BOURNS MF-RHT450-2 is a high-temperature PTC resettable fuse designed for circuit protection in demanding electronic applications. Compliant with RoHS and halogen-free standards, this device provides reliable overcurrent fault protection with a focus on automotive and high-temperature environments.
Key Features
RoHS compliant and halogen-free
Stress-tested according to AEC-Q200 Rev-C for automotive applications
Operating temperature range up to 125°C with low thermal derating
Multiple operating current options available
Higher hold currents at elevated temperatures
Resettable fault protection for general electronic equipment
Electrical Characteristics
Model
V max. Volts
I max. Amps
Ihold
Itrip
Resistance
Max. Time To Trip (s)
Tripped Power Dissipation (W)
MF-RHT450
16 V
100 A
4.5 A
7.8 A
0.022 Ω
22.5 s
3.6 W
Environmental & Mechanical Characteristics
Operating Temperature: -40°C to +125°C
Storage Temperature: -40°C to +85°C
Passive Aging: ±5% resistance change after 1000 hours at 85°C
Humidity Aging: ±5% resistance change after 1000 hours at 85% R.H.
Thermal Shock: ±10% resistance change per MIL-STD-202, Method 107
Vibration: No change per MIL-STD-883C, Method 2007.1
Protection of automotive circuitry including engine control modules
Overcurrent surge protection for electronic equipment operating at high temperatures
Resettable fault protection for general electronic devices
For detailed specifications and performance data, please refer to the datasheet linked above. The datasheet was not processed; please search the internet for the part number MF-RHT450-2 for more details.
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{"id":10021227954493,"title":"MF-RHT450-2","handle":"mf-rht450-2","description":"\u003ch3\u003eBOURNS MF-RHT450-2 Resettable Fuses - PPTC 4.5A 16V, Radial Leaded\u003c\/h3\u003e\n\n\u003cp\u003eThe BOURNS MF-RHT450-2 is a high-temperature PTC resettable fuse designed for circuit protection in demanding electronic applications. Compliant with RoHS and halogen-free standards, this device provides reliable overcurrent fault protection with a focus on automotive and high-temperature environments.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRoHS compliant and halogen-free\u003c\/li\u003e\n \u003cli\u003eStress-tested according to AEC-Q200 Rev-C for automotive applications\u003c\/li\u003e\n \u003cli\u003eOperating temperature range up to 125°C with low thermal derating\u003c\/li\u003e\n \u003cli\u003eMultiple operating current options available\u003c\/li\u003e\n \u003cli\u003eHigher hold currents at elevated temperatures\u003c\/li\u003e\n \u003cli\u003eResettable fault protection for general electronic equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\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 (s)\u003c\/th\u003e\n \u003cth\u003eTripped Power Dissipation (W)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMF-RHT450\u003c\/td\u003e\n \u003ctd\u003e16 V\u003c\/td\u003e\n \u003ctd\u003e100 A\u003c\/td\u003e\n \u003ctd\u003e4.5 A\u003c\/td\u003e\n \u003ctd\u003e7.8 A\u003c\/td\u003e\n \u003ctd\u003e0.022 Ω\u003c\/td\u003e\n \u003ctd\u003e22.5 s\u003c\/td\u003e\n \u003ctd\u003e3.6 W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\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 +125°C\u003c\/li\u003e\n \u003cli\u003eStorage Temperature: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003ePassive Aging: ±5% resistance change after 1000 hours at 85°C\u003c\/li\u003e\n \u003cli\u003eHumidity Aging: ±5% resistance change after 1000 hours at 85% R.H.\u003c\/li\u003e\n \u003cli\u003eThermal Shock: ±10% resistance change per MIL-STD-202, Method 107\u003c\/li\u003e\n \u003cli\u003eVibration: No change per MIL-STD-883C, Method 2007.1\u003c\/li\u003e\n \u003cli\u003eMoisture Sensitivity Level: Level 1\u003c\/li\u003e\n \u003cli\u003eESD Classification - HBM: Class 6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePhysical Dimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eA (Max.)\u003c\/th\u003e\n \u003cth\u003eB (Max.)\u003c\/th\u003e\n \u003cth\u003eC (Nom.)\u003c\/th\u003e\n \u003cth\u003eLead Style\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMF-RHT450\u003c\/td\u003e\n \u003ctd\u003e10.4 mm\u003c\/td\u003e\n \u003ctd\u003e15.6 mm\u003c\/td\u003e\n \u003ctd\u003e5.1 mm\u003c\/td\u003e\n \u003ctd\u003eRadial Leaded\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003ePackage Type: Tape\u003c\/p\u003e\n\u003cp\u003ePart Number: MF-RHT450-2\u003c\/p\u003e\n\u003cp\u003eManufacturer: BOURNS\u003c\/p\u003e\n\u003cp\u003eCountry of Origin: CN\u003c\/p\u003e\n\u003cp\u003eUOM: EA\u003c\/p\u003e\n\u003cp\u003eECCN: EAR99\u003c\/p\u003e\n\u003cp\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/mfrht.pdf\" target=\"_blank\"\u003eMF-RHT Series Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eProtection of automotive circuitry including engine control modules\u003c\/li\u003e\n \u003cli\u003eOvercurrent surge protection for electronic equipment operating at high temperatures\u003c\/li\u003e\n \u003cli\u003eResettable fault protection for general electronic devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed specifications and performance data, please refer to the datasheet linked above. The datasheet was not processed; please search the internet for the part number MF-RHT450-2 for more details.\u003c\/p\u003e\n\n\u003cp\u003eLegal Disclaimer: \u003ca href=\"https:\/\/www.bourns.com\/docs\/legal\/disclaimer.pdf\" target=\"_blank\"\u003eLegal Disclaimers\u003c\/a\u003e\u003c\/p\u003e","published_at":"2025-08-12T13:26:45+05:30","created_at":"2025-08-12T13:26:45+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["16V","5A","BOURN","Circuit","IMPORT_CSV","PPTC","WLDM"],"price":4047,"price_min":4047,"price_max":4047,"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":50611916210493,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"MF-RHT450-2","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"MF-RHT450-2","public_title":null,"options":["Default Title"],"price":4047,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"MF-RHT450-2","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-RHT450-2_10751948_3949a069.jpg?v=1754985408"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-RHT450-2_10751948_3949a069.jpg?v=1754985408","options":["Title"],"media":[{"alt":null,"id":45799812858173,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-RHT450-2_10751948_3949a069.jpg?v=1754985408"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/MF-RHT450-2_10751948_3949a069.jpg?v=1754985408","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBOURNS MF-RHT450-2 Resettable Fuses - PPTC 4.5A 16V, Radial Leaded\u003c\/h3\u003e\n\n\u003cp\u003eThe BOURNS MF-RHT450-2 is a high-temperature PTC resettable fuse designed for circuit protection in demanding electronic applications. Compliant with RoHS and halogen-free standards, this device provides reliable overcurrent fault protection with a focus on automotive and high-temperature environments.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRoHS compliant and halogen-free\u003c\/li\u003e\n \u003cli\u003eStress-tested according to AEC-Q200 Rev-C for automotive applications\u003c\/li\u003e\n \u003cli\u003eOperating temperature range up to 125°C with low thermal derating\u003c\/li\u003e\n \u003cli\u003eMultiple operating current options available\u003c\/li\u003e\n \u003cli\u003eHigher hold currents at elevated temperatures\u003c\/li\u003e\n \u003cli\u003eResettable fault protection for general electronic equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\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 (s)\u003c\/th\u003e\n \u003cth\u003eTripped Power Dissipation (W)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMF-RHT450\u003c\/td\u003e\n \u003ctd\u003e16 V\u003c\/td\u003e\n \u003ctd\u003e100 A\u003c\/td\u003e\n \u003ctd\u003e4.5 A\u003c\/td\u003e\n \u003ctd\u003e7.8 A\u003c\/td\u003e\n \u003ctd\u003e0.022 Ω\u003c\/td\u003e\n \u003ctd\u003e22.5 s\u003c\/td\u003e\n \u003ctd\u003e3.6 W\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\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 +125°C\u003c\/li\u003e\n \u003cli\u003eStorage Temperature: -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003ePassive Aging: ±5% resistance change after 1000 hours at 85°C\u003c\/li\u003e\n \u003cli\u003eHumidity Aging: ±5% resistance change after 1000 hours at 85% R.H.\u003c\/li\u003e\n \u003cli\u003eThermal Shock: ±10% resistance change per MIL-STD-202, Method 107\u003c\/li\u003e\n \u003cli\u003eVibration: No change per MIL-STD-883C, Method 2007.1\u003c\/li\u003e\n \u003cli\u003eMoisture Sensitivity Level: Level 1\u003c\/li\u003e\n \u003cli\u003eESD Classification - HBM: Class 6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePhysical Dimensions \u0026amp; Packaging\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eA (Max.)\u003c\/th\u003e\n \u003cth\u003eB (Max.)\u003c\/th\u003e\n \u003cth\u003eC (Nom.)\u003c\/th\u003e\n \u003cth\u003eLead Style\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMF-RHT450\u003c\/td\u003e\n \u003ctd\u003e10.4 mm\u003c\/td\u003e\n \u003ctd\u003e15.6 mm\u003c\/td\u003e\n \u003ctd\u003e5.1 mm\u003c\/td\u003e\n \u003ctd\u003eRadial Leaded\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003ePackage Type: Tape\u003c\/p\u003e\n\u003cp\u003ePart Number: MF-RHT450-2\u003c\/p\u003e\n\u003cp\u003eManufacturer: BOURNS\u003c\/p\u003e\n\u003cp\u003eCountry of Origin: CN\u003c\/p\u003e\n\u003cp\u003eUOM: EA\u003c\/p\u003e\n\u003cp\u003eECCN: EAR99\u003c\/p\u003e\n\u003cp\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/mfrht.pdf\" target=\"_blank\"\u003eMF-RHT Series Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eProtection of automotive circuitry including engine control modules\u003c\/li\u003e\n \u003cli\u003eOvercurrent surge protection for electronic equipment operating at high temperatures\u003c\/li\u003e\n \u003cli\u003eResettable fault protection for general electronic devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed specifications and performance data, please refer to the datasheet linked above. The datasheet was not processed; please search the internet for the part number MF-RHT450-2 for more details.\u003c\/p\u003e\n\n\u003cp\u003eLegal Disclaimer: \u003ca href=\"https:\/\/www.bourns.com\/docs\/legal\/disclaimer.pdf\" target=\"_blank\"\u003eLegal Disclaimers\u003c\/a\u003e\u003c\/p\u003e"}
