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
LR4-260F

LR4-260F

PTC RESET FUSE 15V 2.6A STRAP

Littelfuse Inc.

4,546 -
RFQ
LR4-260F

Datasheet

Strap PolySwitch®, LR4 Bag Active Polymeric 15V 2.6 A 5.8 A 100 A 5 s 20 mOhms 63 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.205" W (22.00mm x 5.20mm) - 0.039" (1.00mm) -
72R110XU

72R110XU

PTC RESET FUSE 72V 1.1A RADIAL

Littelfuse Inc.

1,332 -
RFQ
72R110XU

Datasheet

Radial, Disc POLY-FUSE®, 72R Bulk Active Polymeric 72V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C - - - Through Hole 0.512" Dia x 0.122" T (13.00mm x 3.10mm) 0.717" (18.20mm) - 0.201" (5.10mm)
MF-RM040/240-2

MF-RM040/240-2

PTC RESET FUSE 240V 400MA RADIAL

Bourns Inc.

14,776 -
RFQ
MF-RM040/240-2

Datasheet

Radial, Disc Multifuse®, MF-RM Tape & Reel (TR) Active Polymeric 240V (265V Int) 400 mA 900 mA 5.5 A 24 s 600 mOhms 1.9 Ohms - -20°C ~ 85°C - - - Through Hole 0.453" L x 0.150" W (11.50mm x 3.80mm) 0.823" (20.90mm) - 0.114" (2.90mm)
MF-SM013/250V-2

MF-SM013/250V-2

PTC RESET FUSE 60V 130MA 2SMD

Bourns Inc.

9,359 -
RFQ
MF-SM013/250V-2

Datasheet

2-SMD Multifuse®, MF-SM/250V Tape & Reel (TR) Active Polymeric 60V (250V Int) 130 mA - 3 A - 4 Ohms 16 Ohms - -40°C ~ 85°C - - - Surface Mount 0.350" L x 0.283" W (8.90mm x 7.20mm) - 0.402" (10.20mm) -
TRF250-145T-2

TRF250-145T-2

PTC RESET FUSE 60V 145MA RADIAL

Littelfuse Inc.

1,431 -
RFQ
TRF250-145T-2

Datasheet

Radial, Disc PolySwitch®, TRF250 Tape & Reel (TR) Active Polymeric 60V (250V Int) 145 mA 290 mA 3 A 1.5 s 5.4 Ohms 14 Ohms - -40°C ~ 85°C - - - Through Hole 0.181" L x 0.181" W (4.60mm x 4.60mm) 0.433" (11.00mm) - 0.197" (5.00mm)
MF-NSML450/12-2

MF-NSML450/12-2

PTC RESET FUSE 12V 4.5A 1206

Bourns Inc.

7,407 -
RFQ
MF-NSML450/12-2

Datasheet

1206 (3216 Metric), Concave Multifuse®, MF-NSML/X Tape & Reel (TR) Active Polymeric 12V 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) - 0.055" (1.40mm) -
MF-USHT010KX-2

MF-USHT010KX-2

PTC RESET FUSE 30V 100MA 1210

Bourns Inc.

3,425 -
RFQ
MF-USHT010KX-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USHT Tape & Reel (TR) Active Polymeric 30V 100 mA 500 mA 20 A 1.5 s 1 Ohms 7.5 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.033" (0.85mm) -
MF-NSML380/12-2

MF-NSML380/12-2

PTC RESET FUSE 12V 3.8A 1206

Bourns Inc.

3,027 -
RFQ
MF-NSML380/12-2

Datasheet

1206 (3216 Metric), Concave Multifuse®, MF-NSML/X Tape & Reel (TR) Active Polymeric 12V 3.8 A 7.6 A 50 A 5 s 2 mOhms 20 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.055" (1.40mm) -
RGEF800-2

RGEF800-2

PTC RESET FUSE 16V 8A RADIAL

Littelfuse Inc.

3,003 -
RFQ
RGEF800-2

Datasheet

Radial, Disc PolySwitch®, RGEF Tape & Reel (TR) Active Polymeric 16V 8 A 13.6 A 100 A 5 s 5.6 mOhms 17.5 mOhms - -40°C ~ 85°C - - - Through Hole 0.480" L x 0.098" W (12.20mm x 2.50mm) 0.823" (20.90mm) - 0.199" (5.05mm)
MF-LR550

MF-LR550

PTC RESET FUSE 10V 5.5A STRAP

Bourns Inc.

2,156 -
RFQ
MF-LR550

Datasheet

Strap Multifuse®, MF-LR Bulk Active Polymeric 10V 5.5 A 10.5 A 100 A 5 s 9 mOhms 22 mOhms - -40°C ~ 85°C - - - User Defined 1.417" L x 0.283" W (36.00mm x 7.20mm) - 0.039" (1.00mm) -
FEMTOSMDC010F/15-2

FEMTOSMDC010F/15-2

PTC RESET FUSE 15V 100MA 0603

Littelfuse Inc.

3,500 -
RFQ
FEMTOSMDC010F/15-2

Datasheet

0603 (1608 Metric), Concave PolySwitch®, femtoSMDC Tape & Reel (TR) Active Polymeric 15V 100 mA 300 mA 40 A 100 ms 2 Ohms 14 Ohms - - - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.033" (0.85mm) -
250S130-RBDR

250S130-RBDR

PTC RESET FUSE 60V 130MA 2SMD

Littelfuse Inc.

4,434 -
RFQ
250S130-RBDR

Datasheet

2-SMD POLY-FUSE®, 250S Tape & Reel (TR) Active Polymeric 60V (250V Int) 130 mA 260 mA 3 A 700 ms 9 Ohms 20 Ohms - -40°C ~ 85°C - - - Surface Mount 0.370" L x 0.291" W (9.40mm x 7.40mm) - 0.146" (3.70mm) -
2920L110/60MR-A

2920L110/60MR-A

PTC RESET FUSE 60V 1.1A 2920

Littelfuse Inc.

2,012 -
RFQ
2920L110/60MR-A

Datasheet

2920 (7351 Metric), Concave POLY-FUSE®, 2920L Tape & Reel (TR) Active Polymeric 60V 1.1 A 2.2 A 20 A 500 ms 120 mOhms 410 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.079" (2.00mm) -
60R110XU

60R110XU

PTC RESET FUSE 60V 1.1A RADIAL

Littelfuse Inc.

13,781 -
RFQ
60R110XU

Datasheet

Radial, Disc POLY-FUSE®, 60R Bulk Active Polymeric 60V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C - - - Through Hole 0.512" Dia x 0.122" T (13.00mm x 3.10mm) 0.717" (18.20mm) - 0.201" (5.10mm)
PTSLR08056V110

PTSLR08056V110

PTC RESET FUSE 6V 1.1A 0805

Eaton - Electronics Division

9,341 -
RFQ
PTSLR08056V110

Datasheet

0805 (2012 Metric), Concave PTSLR0805 Tape & Reel (TR) Active Polymeric 6V 1.1 A 1.8 A 50 A 300 ms 30 mOhms 130 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.028" (0.70mm) -
16R500GPR

16R500GPR

PTC RESET FUSE 16V 5A RADIAL

Littelfuse Inc.

5,194 -
RFQ
16R500GPR

Datasheet

Radial, Disc POLY-FUSE®, 16R Cut Tape (CT) Active Polymeric 16V 5 A 8.5 A 100 A 2 s 15 mOhms 34 mOhms - -40°C ~ 85°C - - - Through Hole 0.409" L x 0.118" W (10.40mm x 3.00mm) 0.563" (14.30mm) - 0.201" (5.10mm)
B59880C0130A070

B59880C0130A070

PTC RESET FUSE 265V 55MA RADIAL

EPCOS - TDK Electronics

966 -
RFQ
B59880C0130A070

Datasheet

Radial, Disc - Bulk Active Ceramic 265V 55 mA 90 mA 200 mA - - - 160 Ohms 0°C ~ 60°C - - - Through Hole 0.157" Dia x 0.197" T (4.00mm x 5.00mm) 0.295" (7.50mm) - 0.197" (5.00mm)
72R135XMR

72R135XMR

PTC RESET FUSE 72V 1.35A RADIAL

Littelfuse Inc.

895 -
RFQ
72R135XMR

Datasheet

Radial, Disc POLY-FUSE®, 72R Cut Tape (CT) Active Polymeric 72V 1.35 A 2.7 A 40 A 9.6 s 120 mOhms 300 mOhms - -40°C ~ 85°C - - - Through Hole 0.535" Dia x 0.122" T (13.58mm x 3.10mm) 0.780" (19.80mm) - 0.201" (5.10mm)
MF-NSML260/12-2

MF-NSML260/12-2

PTC RESET FUSE 12V 2.6A 1206

Bourns Inc.

16,674 -
RFQ
MF-NSML260/12-2

Datasheet

1206 (3216 Metric), Concave Multifuse®, MF-NSML/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 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.039" (1.00mm) -
MF-R600-2

MF-R600-2

PTC RESET FUSE 30V 6A RADIAL

Bourns Inc.

884 -
RFQ
MF-R600-2

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Active Polymeric 30V 6 A 12 A 40 A 16 s 5 mOhms 40 mOhms - -40°C ~ 85°C - - - Through Hole 0.760" L x 0.118" W (19.30mm x 3.00mm) 1.256" (31.90mm) - 0.402" (10.20mm)
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