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
0ZRE0025FF1E

0ZRE0025FF1E

PTC RESET FUSE 240V 250MA RADIAL

Bel Fuse Inc.

14,608 -
RFQ
0ZRE0025FF1E

Datasheet

Radial, Disc 0ZRE Box Active Polymeric 240V 250 mA 560 mA 6 A 18.5 s 1.3 Ohms 3.8 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.378" L x 0.150" W (9.60mm x 3.80mm) 0.685" (17.40mm) - 0.201" (5.10mm)
1812L160/12DR

1812L160/12DR

PTC RESET FUSE 12V 1.6A 1812

Littelfuse Inc.

12,592 -
RFQ
1812L160/12DR

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Active Polymeric 12V 1.6 A 2.8 A 100 A 1 s 30 mOhms 100 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
PRG21BB150MB1RK

PRG21BB150MB1RK

PTC RESET FUSE 20V 59MA 0805

Murata Electronics

7,636 -
RFQ
PRG21BB150MB1RK

Datasheet

0805 (2012 Metric) POSISTOR®, PRG Tape & Reel (TR) Active Ceramic 20V 59 mA 116 mA 1.6 A - - - 15 Ohms -20°C ~ 60°C - - - Surface Mount 0.079" L x 0.049" W (2.00mm x 1.25mm) - 0.057" (1.45mm) -
RXEF135

RXEF135

PTC RESET FUSE 72V 1.35A RADIAL

Littelfuse Inc.

6,579 -
RFQ
RXEF135

Datasheet

Radial, Disc PolySwitch®, RXEF Bag Active Polymeric 72V 1.35 A 2.7 A 40 A 9.6 s 120 mOhms 300 mOhms - -40°C ~ 85°C - - - Through Hole 0.571" Dia x 0.118" T (14.50mm x 3.00mm) 0.752" (19.10mm) - 0.199" (5.05mm)
1812L150/16DR

1812L150/16DR

PTC RESET FUSE 16V 1.5A 1812

Littelfuse Inc.

6,436 -
RFQ
1812L150/16DR

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Active Polymeric 16V 1.5 A 3 A 100 A 500 ms 40 mOhms 110 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
30R110UU

30R110UU

PTC RESET FUSE 30V 1.1A RADIAL

Littelfuse Inc.

3,225 -
RFQ
30R110UU

Datasheet

Radial, Disc POLY-FUSE®, 30R Bulk Active Polymeric 30V 1.1 A 2.2 A 40 A 6.6 s 50 mOhms 170 mOhms - -40°C ~ 85°C - - - Through Hole 0.291" L x 0.118" W (7.40mm x 3.00mm) 0.559" (14.20mm) - 0.201" (5.10mm)
30R250UPR

30R250UPR

PTC RESET FUSE 30V 2.5A RADIAL

Littelfuse Inc.

3,215 -
RFQ
30R250UPR

Datasheet

Radial, Disc POLY-FUSE®, 30R Cut Tape (CT) Active Polymeric 30V 2.5 A 5 A 40 A 10.3 s 20 mOhms 70 mOhms - -40°C ~ 85°C - - - Through Hole 0.449" L x 0.118" W (11.40mm x 3.00mm) 0.720" (18.30mm) - 0.118" (3.00mm)
60R050XU

60R050XU

PTC RESET FUSE 60V 500MA RADIAL

Littelfuse Inc.

2,152 -
RFQ
60R050XU

Datasheet

Radial, Disc POLY-FUSE®, 60R Bulk Active Polymeric 60V 500 mA 1 A 40 A 4 s 500 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)
1812L110/16DR

1812L110/16DR

PTC RESET FUSE 16V 1.1A 1812

Littelfuse Inc.

1,988 -
RFQ
1812L110/16DR

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Active Polymeric 16V 1.1 A 1.95 A 100 A 300 ms 60 mOhms 180 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
1206L035/30WR

1206L035/30WR

PTC RESET FUSE 30V 350MA 1206

Littelfuse Inc.

1,322 -
RFQ
1206L035/30WR

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, 1206L Tape & Reel (TR) Active Polymeric 30V 350 mA 750 mA 100 A 100 ms 300 mOhms 1.2 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.039" (1.00mm) -
MF-R400-2

MF-R400-2

PTC RESET FUSE 30V 4A RADIAL

Bourns Inc.

54,959 -
RFQ
MF-R400-2

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Active Polymeric 30V 4 A 8 A 40 A 12.7 s 10 mOhms 50 mOhms - -40°C ~ 85°C - - - Through Hole 0.567" L x 0.118" W (14.40mm x 3.00mm) 0.976" (24.80mm) - 0.201" (5.10mm)
MF-PSMF010/24X-2

MF-PSMF010/24X-2

PTC RESETTABLE 0.1A 24V SMD 0805

Bourns Inc.

10,128 -
RFQ
MF-PSMF010/24X-2

Datasheet

0805 (2012 Metric), Concave Multifuse®, MF-PSMF Tape & Reel (TR) Active Polymeric 24V 100 mA 300 mA 80 A 1.5 s 1 Ohms 7.5 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.085" L x 0.053" W (2.15mm x 1.35mm) - 0.033" (0.85mm) -
MF-PSMF035X-2

MF-PSMF035X-2

PTC RESET FUSE 6V 350MA 0805

Bourns Inc.

9,328 -
RFQ
MF-PSMF035X-2

Datasheet

0805 (2012 Metric), Concave Multifuse®, MF-PSMF Tape & Reel (TR) Active Polymeric 6V 350 mA 750 mA 40 A 100 ms 250 mOhms 1.2 Ohms - -40°C ~ 85°C - - - Surface Mount 0.085" L x 0.053" W (2.15mm x 1.35mm) - 0.033" (0.85mm) -
MF-R300-2

MF-R300-2

PTC RESET FUSE 30V 3A RADIAL

Bourns Inc.

9,247 -
RFQ
MF-R300-2

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Active Polymeric 30V 3 A 6 A 40 A 10.8 s 20 mOhms 80 mOhms - -40°C ~ 85°C - - - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
PRG21BC3R3MM1RA

PRG21BC3R3MM1RA

PTC RESET FUSE 20V 180MA 0805

Murata Electronics

8,252 -
RFQ
PRG21BC3R3MM1RA

Datasheet

0805 (2012 Metric) POSISTOR®, PRG Tape & Reel (TR) Active Ceramic 20V 180 mA 400 mA 7.5 A - - - 3.3 Ohms -20°C ~ 85°C - - - Surface Mount 0.079" L x 0.049" W (2.00mm x 1.25mm) - 0.043" (1.10mm) -
0ZRM0050FF1E

0ZRM0050FF1E

PTC RESET FUSE 120V 500MA RADIAL

Bel Fuse Inc.

3,309 -
RFQ
0ZRM0050FF1E

Datasheet

Radial, Disc 0ZRM Box Active Polymeric 120V 500 mA 1 A 3 A 6 s 500 mOhms 1.17 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.362" Dia x 0.150" T (9.20mm x 3.80mm) 0.587" (14.90mm) - 0.201" (5.10mm)
B59407A0115A062

B59407A0115A062

THERMISTOR PTC 470 OHM 25% 0402

EPCOS - TDK Electronics

6,147 -
RFQ
B59407A0115A062

Datasheet

0402 (1005 Metric) B59407 Tape & Reel (TR) Active Ceramic 32V 13 mA 32 mA 120 mA - 265 Ohms 470 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.039" L x 0.020" W (1.00mm x 0.50mm) - 0.022" (0.55mm) -
PFRA.250

PFRA.250

PTC RESET FUSE 30V 2.5A RADIAL

SCHURTER Inc.

2,870 -
RFQ
PFRA.250

Datasheet

Radial, Disc PFRA Bulk Active Polymeric 30V 2.5 A 5 A 40 A 10.3 s 25 mOhms 70 mOhms - -40°C ~ 85°C - - - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
RXEF110-2

RXEF110-2

PTC RESET FUSE 72V 1.1A RADIAL

Littelfuse Inc.

1,877 -
RFQ
RXEF110-2

Datasheet

Radial, Disc PolySwitch®, RXEF Tape & Reel (TR) Active Polymeric 72V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C - - - Through Hole 0.504" Dia x 0.118" T (12.80mm x 3.00mm) 0.689" (17.50mm) - 0.199" (5.05mm)
NANOSMDC200F-2

NANOSMDC200F-2

PTC RESET FUSE 6V 2A 1206

Littelfuse Inc.

1,266 -
RFQ
NANOSMDC200F-2

Datasheet

1206 (3216 Metric), Concave PolySwitch®, nanoSMD Tape & Reel (TR) Active Polymeric 6V 2 A 4 A 100 A 1.5 s 20 mOhms 72 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.59mm) - 0.043" (1.10mm) -
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