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0755-82798135PTC Resettable Fuses
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PFRA.110.3PTC RESET FUSE 30V 1.1A RADIAL |
5,684 | - |
|
Datasheet |
Radial, Disc | PFRA | Tape & Box (TB) | Obsolete | 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) |
|
PFRA.160.3PTC RESET FUSE 30V 1.6A RADIAL |
9,763 | - |
|
Datasheet |
Radial, Disc | PFRA | Tape & Box (TB) | Obsolete | Polymeric | 30V | 1.6 A | 3.2 A | 40 A | 8 s | 55 mOhms | 150 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.402" Dia x 0.118" T (10.20mm x 3.00mm) | 0.661" (16.80mm) | - | 0.201" (5.10mm) |
|
PFLT.260PTC RESET FUSE 24V 2.6A STRAP |
5,762 | - |
|
Datasheet |
Strap | PFLT | Bulk | Obsolete | Polymeric | 24V | 2.6 A | 5.2 A | 100 A | 5 s | 25 mOhms | 76 mOhms | - | -45°C ~ 85°C | - | - | - | User Defined | 0.984" L x 0.447" W (25.00mm x 11.35mm) | - | 0.039" (1.00mm) | - |
|
PFLT.300PTC RESET FUSE 24V 3A STRAP |
5,523 | - |
|
Datasheet |
Strap | PFLT | Bulk | Obsolete | Polymeric | 24V | 3 A | 6.3 A | 100 A | 4 s | 15 mOhms | 55 mOhms | - | -45°C ~ 85°C | - | - | - | User Defined | 1.185" L x 0.532" W (30.10mm x 13.50mm) | - | 0.043" (1.10mm) | - |
|
PFRA.250.3PTC RESET FUSE 30V 2.5A RADIAL |
8,328 | - |
|
Datasheet |
Radial, Disc | PFRA | Tape & Box (TB) | Obsolete | 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) |
|
PFRX.110PTC RESET FUSE 60V 1.1A RADIAL |
7,074 | - |
|
Datasheet |
Radial, Disc | PFRX | Bulk | Obsolete | 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) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
PFRX.135PTC RESET FUSE 60V 1.35A RADIAL |
8,384 | - |
|
Datasheet |
Radial, Disc | PFRX | Bulk | Obsolete | Polymeric | 60V | 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 0.122" T (14.50mm x 3.10mm) | 0.772" (19.60mm) | - | 0.201" (5.10mm) |
|
PFRA.300.3PTC RESET FUSE 30V 3A RADIAL |
2,699 | - |
|
Datasheet |
Radial, Disc | PFRA | Tape & Box (TB) | Obsolete | 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) |
|
PFRX.135.3PTC RESET FUSE 60V 1.35A RADIAL |
2,345 | - |
|
Datasheet |
Radial, Disc | PFRX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 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 0.122" T (14.50mm x 3.10mm) | 0.772" (19.60mm) | - | 0.201" (5.10mm) |
|
PFRX.160PTC RESET FUSE 60V 1.6A RADIAL |
9,628 | - |
|
Datasheet |
Radial, Disc | PFRX | Bulk | Obsolete | Polymeric | 60V | 1.6 A | 3.2 A | 40 A | 11.4 s | 90 mOhms | 220 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.642" Dia x 0.122" T (16.30mm x 3.10mm) | 0.839" (21.30mm) | - | 0.201" (5.10mm) |
|
PFRX.110.3PTC RESET FUSE 60V 1.1A RADIAL |
7,107 | - |
|
Datasheet |
Radial, Disc | PFRX | Tape & Box (TB) | Obsolete | 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) | 0.709" (18.00mm) | - | 0.201" (5.10mm) |
|
PFRX.185PTC RESET FUSE 60V 1.85A RADIAL |
4,651 | - |
|
Datasheet |
Radial, Disc | PFRX | Bulk | Obsolete | Polymeric | 60V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.701" Dia x 0.122" T (17.80mm x 3.10mm) | 0.902" (22.90mm) | - | 0.201" (5.10mm) |
|
PFRA.400.3PTC RESET FUSE 30V 4A RADIAL |
7,935 | - |
|
Datasheet |
Radial, Disc | PFRA | Tape & Box (TB) | Obsolete | 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) |
|
PFRX.250PTC RESET FUSE 60V 2.5A RADIAL |
7,723 | - |
|
Datasheet |
Radial, Disc | PFRX | Bulk | Obsolete | Polymeric | 60V | 2.5 A | 5 A | 40 A | 15.6 s | 50 mOhms | 130 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.839" Dia x 0.122" T (21.30mm x 3.10mm) | 1.039" (26.40mm) | - | 0.402" (10.20mm) |
|
PFRX.160.3PTC RESET FUSE 60V 1.6A RADIAL |
4,809 | - |
|
Datasheet |
Radial, Disc | PFRX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 1.6 A | 3.2 A | 40 A | 11.4 s | 90 mOhms | 220 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.642" Dia x 0.122" T (16.30mm x 3.10mm) | 0.839" (21.30mm) | - | 0.201" (5.10mm) |
|
PFRT.008.250PTC RESET FUSE 60V 80MA RADIAL |
6,878 | - |
|
Datasheet |
Radial, Disc | PFRT | Bulk | Obsolete | Polymeric | 60V (250V Int) | 80 mA | - | 3 A | - | 15 Ohms | 33 Ohms | - | -45°C ~ 85°C | - | - | - | Through Hole | 0.209" L x 0.197" W (5.30mm x 5.00mm) | 0.366" (9.30mm) | - | 0.201" (5.10mm) |
|
PFRX.185.3PTC RESET FUSE 60V 1.85A RADIAL |
9,961 | - |
|
Datasheet |
Radial, Disc | PFRX | Tape & Box (TB) | Obsolete | Polymeric | 60V | 1.85 A | 3.7 A | 40 A | 12.6 s | 80 mOhms | 190 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.701" Dia x 0.122" T (17.80mm x 3.10mm) | 0.902" (22.90mm) | - | 0.201" (5.10mm) |
|
PFLR.550PTC RESET FUSE 10V 5.5A STRAP |
3,174 | - |
|
Datasheet |
Strap | PFLR | Bulk | Obsolete | Polymeric | 10V | 5.5 A | 10.5 A | 100 A | 5 s | 9 mOhms | 22 mOhms | - | -45°C ~ 85°C | - | - | - | User Defined | 1.417" L x 0.283" W (36.00mm x 7.20mm) | - | - | - |
|
PFLR.450PTC RESET FUSE 10V 4.5A STRAP |
7,985 | - |
|
Datasheet |
Strap | PFLR | Bulk | Obsolete | Polymeric | 10V | 4.5 A | 8.9 A | 100 A | 5 s | 11 mOhms | 28 mOhms | - | -45°C ~ 85°C | - | - | - | User Defined | 0.984" L x 0.402" W (25.00mm x 10.21mm) | - | 0.039" (1.00mm) | - |
|
PFVS.210PTC RESET FUSE 16V 2.1A STRAP |
4,406 | - |
|
Datasheet |
Strap | PFVS | Bulk | Obsolete | Polymeric | 16V | 2.1 A | 4.7 A | 100 A | 5 s | 18 mOhms | 60 mOhms | - | -40°C ~ 85°C | - | - | - | User Defined | 0.878" L x 0.201" W (22.30mm x 5.10mm) | - | 0.032" (0.80mm) | - |

