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PTC Resettable Fuses

Category Introduction

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.

Product List

5 Items
PDF Mfr Part # Quantity
Available		 UnitPrice RFQ Series Packaging Product StatusTypeVoltage - MaxCurrent - MaxCurrent - Hold (Ih) (Max)Current - Trip (It)Time to TripResistance - Initial (Ri) (Min)Resistance - Post Trip (R1) (Max)Resistance - 25°C (Typ)Operating TemperatureRatingsMounting TypePackage / CaseSize / DimensionHeight - Seated (Max)Thickness (Max)Lead Spacing
MF-SM050-2
MF-SM050-2
PTC RESET FUSE 60V 500MA 2SMD
Bourns Inc.
 2,395 $0.37
Multifuse®, MF-SM Tape & Reel (TR) ActivePolymeric60V40 A500 mA1 A4 s350 mOhms1.4 Ohms--40°C ~ 85°CAEC-Q200Surface Mount2-SMD0.287" L x 0.214" W (7.31mm x 5.44mm)-0.125" (3.18mm)-
MF-MSMF020-2
MF-MSMF020-2
PTC RESET FUSE 30V 200MA 1812
Bourns Inc.
 2,726 $0.31
Multifuse®, MF-MSMF Tape & Reel (TR) ActivePolymeric30V80 A200 mA400 mA60 ms400 mOhms6 Ohms--40°C ~ 85°CAEC-Q200Surface Mount1812 (4532 Metric), Concave0.179" L x 0.128" W (4.55mm x 3.24mm)-0.043" (1.10mm)-
MF-MSMF010-2
MF-MSMF010-2
PTC RESET FUSE 60V 100MA 1812
Bourns Inc.
 649 $0.31
Multifuse®, MF-MSMF Tape & Reel (TR) ActivePolymeric60V40 A100 mA300 mA1.5 s700 mOhms15 Ohms--40°C ~ 85°CAEC-Q200Surface Mount1812 (4532 Metric), Concave0.179" L x 0.128" W (4.55mm x 3.24mm)-0.043" (1.10mm)-
MF-SM050-2-006
MF-SM050-2-006
PTC RESET FUSE 60V 500MA 2SMD
Bourns Inc.
 396 $0.00
Multifuse®, MF-SM Tape & Reel (TR) ActivePolymeric60V40 A500 mA1 A4 s350 mOhms1.4 Ohms--40°C ~ 85°CAEC-Q200Surface Mount2-SMD0.287" L x 0.214" W (7.31mm x 5.44mm)-0.125" (3.18mm)-
MF-SM050-2-99
MF-SM050-2-99
PTC RESET FUSE 60V 500MA 2SMD
Bourns Inc.
 456 $0.00
Multifuse®, MF-SM Tape & Reel (TR) ObsoletePolymeric60V40 A500 mA1 A4 s350 mOhms1.4 Ohms--40°C ~ 85°CAEC-Q200Surface Mount2-SMD0.287" L x 0.214" W (7.31mm x 5.44mm)-0.125" (3.18mm)-