PTC Resettable Fuses

Manufacturer 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

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PTC Resettable Fuses

PTC Resettable Fuses are circuit protection components used to protect electronic systems from overcurrent, short-circuit and fault conditions. Unlike one-time fuses, PTC resettable fuses increase resistance during a fault and can return to a low-resistance state after the fault is removed and the device cools down.

This category includes polymer PTC resettable fuses, PPTC fuses, radial leaded PTC fuses, surface-mount PTC fuses and related overcurrent protection components. These devices are commonly selected based on hold current, trip current, rated voltage, resistance, response time, package type, operating temperature and application requirements.

TomatoElec supplies original PTC Resettable Fuses from recognized manufacturers such as Littelfuse, Bourns, Eaton, Bel Fuse, TE Connectivity, Murata, TDK, Panasonic and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.

Photo 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
MINISMDC075F-2

MINISMDC075F-2

PTC RESET FUSE 13.2V 750MA 1812

Littelfuse Inc.

34,734 -
RFQ
MINISMDC075F-2

Datasheet

1812 (4532 Metric), Concave PolySwitch®, miniSMD Tape & Reel (TR) Active Polymeric 13.2V 750 mA 1.5 A 100 A 200 ms 110 mOhms 450 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.024" (0.62mm) -
MF-USMF005-2

MF-USMF005-2

PTC RESET FUSE 30V 50MA 1210

Bourns Inc.

27,763 -
RFQ
MF-USMF005-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USMF Tape & Reel (TR) Active Polymeric 30V 50 mA 150 mA 10 A 1.5 s 2.8 Ohms 50 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.033" (0.85mm) -
MF-PSMF050X-2

MF-PSMF050X-2

PTC RESET FUSE 6V 500MA 0805

Bourns Inc.

9,795 -
RFQ
MF-PSMF050X-2

Datasheet

0805 (2012 Metric), Concave Multifuse®, MF-PSMF Tape & Reel (TR) Active Polymeric 6V 500 mA 1 A 40 A 100 ms 150 mOhms 900 mOhms - -40°C ~ 85°C - - - Surface Mount 0.085" L x 0.053" W (2.15mm x 1.35mm) - 0.033" (0.85mm) -
MINISMDC050F-2

MINISMDC050F-2

PTC RESET FUSE 24V 500MA 1812

Littelfuse Inc.

102,596 -
RFQ
MINISMDC050F-2

Datasheet

1812 (4532 Metric), Concave PolySwitch®, miniSMD Tape & Reel (TR) Active Polymeric 24V 500 mA 1 A 100 A 150 ms 150 mOhms 1 Ohms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.024" (0.62mm) -
0ZCG0260BF2B

0ZCG0260BF2B

PTC RESET FUSE 16V 2.6A 1812

Bel Fuse Inc.

86,020 -
RFQ
0ZCG0260BF2B

Datasheet

1812 (4532 Metric), Concave 0ZCG Tape & Reel (TR) Active Polymeric 16V 2.6 A 5 A 100 A 5 s 15 mOhms 50 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.061" (1.55mm) -
NANOSMDC020F-2

NANOSMDC020F-2

PTC RESET FUSE 24V 200MA 1206

Littelfuse Inc.

21,729 -
RFQ
NANOSMDC020F-2

Datasheet

1206 (3216 Metric), Concave PolySwitch®, nanoSMDC020F Tape & Reel (TR) Active Polymeric 24V 200 mA 420 mA 100 A 0.1 s 650 mOhms 3.1 Ohms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.59mm) - 0.028" (0.70mm) -
MINISMDC014F-2

MINISMDC014F-2

PTC RESET FUSE 60V 140MA 1812

Littelfuse Inc.

49,757 -
RFQ
MINISMDC014F-2

Datasheet

1812 (4532 Metric), Concave PolySwitch®, miniSMD Tape & Reel (TR) Active Polymeric 60V 140 mA 280 mA 10 A 8 ms 1.5 Ohms 6 Ohms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.035" (0.89mm) -
NANOSMDC010F-2

NANOSMDC010F-2

PTC RESET FUSE 60V 100MA 1206

Littelfuse Inc.

33,016 -
RFQ
NANOSMDC010F-2

Datasheet

1206 (3216 Metric), Concave nanoSMD Tape & Reel (TR) Active Polymeric 60V 100 mA 250 mA 10 A 1 s - - - - - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.59mm) - 0.039" (1.00mm) -
NANOSMDC016F-2

NANOSMDC016F-2

PTC RESET FUSE 48V 160MA 1206

Littelfuse Inc.

37,252 -
RFQ
NANOSMDC016F-2

Datasheet

1206 (3216 Metric), Concave PolySwitch®, nanoSMD Tape & Reel (TR) Active Polymeric 48V 160 mA 450 mA 10 A 300 ms 1.1 Ohms - - - - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.60mm) - 0.039" (1.00mm) -
MINISMDC020F-2

MINISMDC020F-2

PTC RESET FUSE 30V 200MA 1812

Littelfuse Inc.

30,478 -
RFQ
MINISMDC020F-2

Datasheet

1812 (4532 Metric), Concave PolySwitch®, miniSMD Tape & Reel (TR) Active Polymeric 30V 200 mA 400 mA 10 A 20 ms 600 mOhms 3.3 Ohms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.035" (0.89mm) -
MF-SM100-2

MF-SM100-2

PTC RESET FUSE 30V 1.1A 2SMD

Bourns Inc.

7,849 -
RFQ
MF-SM100-2

Datasheet

2-SMD Multifuse®, MF-SM Tape & Reel (TR) Active Polymeric 30V 1.1 A 2.2 A 80 A 500 ms 120 mOhms 480 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.287" L x 0.214" W (7.31mm x 5.44mm) - 0.118" (3.00mm) -
MF-SM050-2

MF-SM050-2

PTC RESET FUSE 60V 500MA 2SMD

Bourns Inc.

5,409 -
RFQ
MF-SM050-2

Datasheet

2-SMD Multifuse®, MF-SM Tape & Reel (TR) Active Polymeric 60V 500 mA 1 A 40 A 4 s 350 mOhms 1.4 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.287" L x 0.214" W (7.31mm x 5.44mm) - 0.125" (3.18mm) -
RXEF050-2

RXEF050-2

PTC RESET FUSE 72V 500MA RADIAL

Littelfuse Inc.

13,378 -
RFQ
RXEF050-2

Datasheet

Radial, Disc PolySwitch®, RXEF Tape & Reel (TR) Active Polymeric 72V 500 mA 1 A 40 A 4 s 500 mOhms 1.17 Ohms - -40°C ~ 85°C - - - Through Hole 0.311" Dia x 0.118" T (7.90mm x 3.00mm) 0.539" (13.70mm) - 0.199" (5.05mm)
RXEF010

RXEF010

PTC RESET FUSE 60V 100MA RADIAL

Littelfuse Inc.

8,776 -
RFQ
RXEF010

Datasheet

Radial, Disc PolySwitch®, RXEF Bag Active Polymeric 60V 100 mA 200 mA 40 A 4 s 2.5 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.457" (11.60mm) - 0.199" (5.05mm)
MF-R020-2

MF-R020-2

PTC RESET FUSE 60V 200MA RADIAL

Bourns Inc.

24,042 -
RFQ
MF-R020-2

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Active Polymeric 60V 200 mA 400 mA 40 A 2.2 s 1.5 Ohms 4.4 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
RXEF025

RXEF025

PTC RESET FUSE 72V 250MA RADIAL

Littelfuse Inc.

19,910 -
RFQ
RXEF025

Datasheet

Radial, Disc PolySwitch®, RXEF Bag Active Polymeric 72V 250 mA 500 mA 40 A 2.5 s 1.25 Ohms 3 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.500" (12.70mm) - 0.199" (5.05mm)
NANOSMDC012F-2

NANOSMDC012F-2

PTC RESET FUSE 48V 120MA 1206

Littelfuse Inc.

20,303 -
RFQ
NANOSMDC012F-2

Datasheet

1206 (3216 Metric), Concave PolySwitch®, nanoSMD Tape & Reel (TR) Active Polymeric 48V 120 mA 390 mA 10 A 200 ms 1.4 Ohms 6.5 Ohms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.59mm) - 0.039" (1.00mm) -
RXEF050

RXEF050

PTC RESET FUSE 72V 500MA RADIAL

Littelfuse Inc.

10,234 -
RFQ
RXEF050

Datasheet

Radial, Disc PolySwitch®, RXEF Bag Active Polymeric 72V 500 mA 1 A 40 A 4 s 500 mOhms 1.17 Ohms - -40°C ~ 85°C - - - Through Hole 0.311" Dia x 0.118" T (7.90mm x 3.00mm) 0.539" (13.70mm) - 0.199" (5.05mm)
MF-R110

MF-R110

PTC RESET FUSE 30V 1.1A RADIAL

Bourns Inc.

6,285 -
RFQ
MF-R110

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 30V 1.1 A 2.2 A 40 A 6.6 s 100 mOhms 270 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" Dia x 0.118" T (8.90mm x 3.00mm) 0.551" (14.00mm) - 0.201" (5.10mm)
MF-R050

MF-R050

PTC RESET FUSE 60V 500MA RADIAL

Bourns Inc.

2,449 -
RFQ
MF-R050

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 60V 500 mA 1 A 40 A 4 s 410 mOhms 1.17 Ohms - -40°C ~ 85°C - - - Through Hole 0.311" Dia x 0.122" T (7.90mm x 3.10mm) 0.539" (13.70mm) - 0.201" (5.10mm)
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