PTC Resettable Fuses

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Mfr Part #	Quantity Available	Price	Series	Package	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)	Operating Temperature	Grade	Qualification	Ratings	Mounting Type	Package / Case	Size / Dimension	Height - Seated (Max)	Thickness (Max)	Lead Spacing

1812L110/33MR PTC RESET FUSE 33V 1.1A 1812 Littelfuse Inc.	28,868 In Stock	1 : ¥4.76000 Cut Tape (CT) 1,000 : ¥1.91297 Tape & Reel (TR)	POLY-FUSE®, 1812L	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Polymeric	33V	1.1 A	1.95 A	20 A	500 ms	60 mOhms	200 mOhms	-40°C ~ 85°C	-	-	-	Surface Mount	1812 (4532 Metric), Concave	0.179" L x 0.128" W (4.55mm x 3.24mm)	-	0.079" (2.00mm)	-
MF-NSMF110-2 PTC RESET FUSE 6V 1.1A 1206 Bourns Inc.	65,247 In Stock	1 : ¥2.63000 Cut Tape (CT) 3,000 : ¥1.19403 Tape & Reel (TR)	Multifuse®, MF-NSMF	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Polymeric	6V	1.1 A	2.2 A	100 A	100 ms	60 mOhms	200 mOhms	-40°C ~ 85°C	Automotive	AEC-Q200	-	Surface Mount	1206 (3216 Metric), Concave	0.126" L x 0.063" W (3.20mm x 1.60mm)	-	0.028" (0.70mm)	-

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PTC Resettable Fuses

PTC Resettable Fuses are designed to stop current flow when it exceeds a certain limit (overcurrent protection). The Fuses work by increasing its resistance as its temperature rises due to the current increase. The trip current ranges from 14 mA to 50 A with the Time to trip ranging from 8 ms to 90 s. PTC = Positive Temperature Coefficient.