PTC Resettable Fuses

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Package/Case	Series	Packaging	Product Status	Type	Voltage - Max	Current - Hold (Ih) (Max)	Current - Trip (It)	Current - Max	Time to Trip	Resistance - Initial (Ri) (Min)	Resistance - Post Trip (R1) (Max)	Resistance - 25°C (Typ)	Operating Temperature	Grade	Qualification	Ratings	Mounting Type	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing
MF-RG700-0 PTC RESET FUSE 16V 7A RADIAL Bourns Inc.	2,580	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RG	Bulk	Active	Polymeric	16V	7 A	11.9 A	100 A	8 s	8 mOhms	21 mOhms	-	-40°C ~ 85°C	-	-	-	Through Hole	0.441" L x 0.118" W (11.20mm x 3.00mm)	0.740" (18.80mm)	-	0.201" (5.10mm)
MF-RX040/72-2 PTC RESET FUSE 72V 400MA RADIAL Bourns Inc.	2,247	-	RFQ	Datasheet	Radial, Disc	MF-RX/72	Tape & Reel (TR)	Active	-	72V	400 mA	800 mA	40 A	3.9 s	-	-	-	-	-	-	-	Through Hole	0.291" Dia x 0.122" W (7.40mm x 3.10mm)	-	-	0.201" (5.10mm)
MF-VS170-0 PTC RESET FUSE 16V 1.7A STRAP Bourns Inc.	1,982	-	RFQ	Datasheet	Strap	Multifuse®, MF-VS	Bulk	Active	Polymeric	16V	1.7 A	3.4 A	100 A	3 s	30 mOhms	105 mOhms	-	-40°C ~ 85°C	-	-	-	User Defined	0.669" L x 0.205" W (17.00mm x 5.20mm)	-	0.035" (0.90mm)	-
MF-USML260/12-2 PTC RESET FUSE 12V 2.6A 1210 Bourns Inc.	4,860	-	RFQ	Datasheet	1210 (3225 Metric), Concave	Multifuse®, MF-USML/X	Tape & Reel (TR)	Active	Polymeric	12V	2.6 A	5.2 A	50 A	5 s	4 mOhms	30 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.127" L x 0.101" W (3.22mm x 2.58mm)	-	0.031" (0.80mm)	-
CMF-RL50-10-0 PTC RESET FUSE 220V 65MA RADIAL Bourns Inc.	3,551	-	RFQ	Datasheet	Radial, Disc	CMF-RL	Bulk	Active	Ceramic	220V (600V Int)	65 mA	150 mA	3 A	150 ms	-	-	50 Ohms	-40°C ~ 125°C	-	-	-	Through Hole	0.386" L x 0.197" W (9.80mm x 5.00mm)	0.532" (13.50mm)	-	0.200" (5.08mm)
MF-RG800-0 PTC RESET FUSE 16V RADIAL DISC Bourns Inc.	2,829	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RG	Bulk	Active	Polymeric	16V	-	-	100 A	-	-	-	-	-40°C ~ 85°C	-	-	-	Through Hole	0.500" L x 0.118" W (12.70mm x 3.00mm)	0.823" (20.90mm)	-	0.201" (5.10mm)
MF-NSML175/6-2 PTC RESET FUSE 6V 1.75A 1206 Bourns Inc.	4,980	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSML/X	Tape & Reel (TR)	Active	Polymeric	6V	1.75 A	3.5 A	50 A	5 s	6 mOhms	50 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.028" (0.70mm)	-
MF-NSML450/6-2 PTC RESET FUSE 6V 4.5A 1206 Bourns Inc.	3,360	-	RFQ	Datasheet	1206 (3216 Metric), Concave	Multifuse®, MF-NSML/X	Tape & Reel (TR)	Active	Polymeric	6V	4.5 A	9 A	50 A	2 s	2 mOhms	14 mOhms	-	-40°C ~ 85°C	-	-	-	Surface Mount	0.128" L x 0.063" W (3.25mm x 1.60mm)	-	0.039" (1.00mm)	-
MF-RM016/240-0 PTC RESET FUSE 240V 160MA RADIAL Bourns Inc.	2,955	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RM	Bulk	Active	Polymeric	240V (265V Int)	160 mA	370 mA	2 A	15 s	2.5 Ohms	7.8 Ohms	-	-20°C ~ 85°C	-	-	-	Through Hole	0.390" Dia x 0.150" T (9.90mm x 3.80mm)	0.543" (13.80mm)	-	0.114" (2.90mm)
MF-RM033/240-0 PTC RESET FUSE 240V 330MA RADIAL Bourns Inc.	2,871	-	RFQ	Datasheet	Radial, Disc	Multifuse®, MF-RM	Bulk	Active	Polymeric	240V (265V Int)	330 mA	740 mA	4.5 A	21 s	770 mOhms	2.6 Ohms	-	-20°C ~ 85°C	-	-	-	Through Hole	0.449" L x 0.150" W (11.40mm x 3.80mm)	0.787" (20.00mm)	-	0.114" (2.90mm)

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FREQUENTLY ASKED QUESTIONS

PTC Resettable Fuses FAQ

Common questions about filtering, comparing and sourcing PTC Resettable Fuses components.

How can I narrow the PTC Resettable Fuses selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific PTC Resettable Fuses part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.