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
FRU800-30F

FRU800-30F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

280 -
RFQ
FRU800-30F

Datasheet

Radial, Disc FRU Bulk Active - 30V 8 A 16 A 100 A 18.8 s 5 mOhms 20 mOhms - -40°C ~ 85°C - - - Through Hole 0.850" L x 0.118" W (21.60mm x 3.00mm) 1.150" (29.20mm) - 0.402" (10.20mm)
16R250GPR

16R250GPR

PTC RESET FUSE 16V 2.5A RADIAL

Littelfuse Inc.

908 -
RFQ
16R250GPR

Datasheet

Radial, Disc POLY-FUSE®, 16R Cut Tape (CT) Obsolete Polymeric 16V 2.5 A 4.7 A 100 A 5 s 22 mOhms 53 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.504" (12.80mm) - 0.201" (5.10mm)
FSMD500-16-2920R

FSMD500-16-2920R

RESETTABLE FUSE - SMD, 2920 SIZE

RFE/Fuzetec

800 -
RFQ
FSMD500-16-2920R

Datasheet

2920 (7351 Metric), Concave FSMD2920 Tape & Reel (TR) Active - 16V 5 A 10 A 100 A 5 s 5 mOhms 25 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.059" (1.50mm) -
FRV055-240F

FRV055-240F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

280 -
RFQ
FRV055-240F

Datasheet

Radial, Disc FRV Bulk Active - 240V (265V Int) 550 mA 1.25 A 7 A 26 s 450 mOhms 1.45 Ohms - -40°C ~ 85°C - - - Through Hole 0.551" L x 0.161" W (14.00mm x 4.10mm) 0.854" (21.70mm) - 0.201" (5.10mm)
RGEF250-AP

RGEF250-AP

PTC RESET FUSE 16V 2.5A RADIAL

Littelfuse Inc.

553 -
RFQ
RGEF250-AP

Datasheet

Radial, Disc PolySwitch®, RGEF Cut Tape (CT) Active Polymeric 16V 2.5 A 4.7 A 100 A 5 s 22 mOhms 53 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.504" (12.80mm) - 0.199" (5.05mm)
RXEF135-AP

RXEF135-AP

PTC RESET FUSE 72V 1.35A RADIAL

Littelfuse Inc.

699 -
RFQ
RXEF135-AP

Datasheet

Radial, Disc PolySwitch®, RXEF 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 0.571" Dia x 0.118" T (14.50mm x 3.00mm) 0.752" (19.10mm) - 0.200" (5.08mm)
RUEF400K-AP

RUEF400K-AP

PTC RESET FUSE 30V 4A RADIAL

Littelfuse Inc.

900 -
RFQ
RUEF400K-AP

Datasheet

Radial, Disc PolySwitch®, RUEF Cut Tape (CT) Active Polymeric 30V 4 A 8 A 100 A 12.7 s 10 mOhms 50 mOhms - -40°C ~ 85°C - - - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.839" (21.30mm) - 0.199" (5.05mm)
RUSBF185-AP

RUSBF185-AP

PTC RESET FUSE 16V 1.85A RADIAL

Littelfuse Inc.

593 -
RFQ
RUSBF185-AP

Datasheet

Radial, Disc PolySwitch®, RUSBF Cut Tape (CT) Active Polymeric 16V 1.85 A 3.7 A 40 A 10 s 30 mOhms 90 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" L x 0.118" W (10.20mm x 3.00mm) 0.618" (15.70mm) - 0.199" (5.05mm)
RHEF070-AP

RHEF070-AP

PTC RESET FUSE 30V 700MA RADIAL

Littelfuse Inc.

139 -
RFQ
RHEF070-AP

Datasheet

Radial, Disc PolySwitch®, RHEF Cut Tape (CT) Active Polymeric 30V 700 mA 1.4 A 40 A 3.2 s 300 mOhms 800 mOhms - -40°C ~ 125°C - - - Through Hole 0.272" L x 0.118" W (6.90mm x 3.00mm) 0.425" (10.80mm) - 0.199" (5.05mm)
RS90-010

RS90-010

PTC RESET FUSE 72V 100MA RADIAL

OptiFuse

499 -
RFQ
RS90-010

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 100 mA 200 mA 40 A 4 s 2.5 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
RS90-025

RS90-025

PTC RESET FUSE 72V 250MA RADIAL

OptiFuse

499 -
RFQ
RS90-025

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 250 mA 500 mA 40 A 2.5 s 1.25 Ohms 3 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
RS90-015

RS90-015

PTC RESET FUSE 72V 150MA RADIAL

OptiFuse

499 -
RFQ
RS90-015

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 150 mA 350 mA 40 A 10 s 2.4 Ohms 7 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)
RS90-017

RS90-017

PTC RESET FUSE 72V 170MA RADIAL

OptiFuse

499 -
RFQ
RS90-017

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 170 mA 340 mA 40 A 3 s 2 Ohms 5 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)
RGEF400K-AP

RGEF400K-AP

PTC RESET FUSE 16V 4A RADIAL

Littelfuse Inc.

370 -
RFQ
RGEF400K-AP

Datasheet

Radial, Disc PolySwitch®, RGEF Cut Tape (CT) Active Polymeric 16V 4 A 6.8 A 100 A 1.7 s 21 mOhms 60 mOhms - -40°C ~ 85°C - - - Through Hole 0.331" L x 0.098" W (8.40mm x 2.50mm) 0.504" (12.80mm) - 0.199" (5.05mm)
RS90-020

RS90-020

PTC RESET FUSE 72V 200MA RADIAL

OptiFuse

299 -
RFQ
RS90-020

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 200 mA 400 mA 40 A 2.2 s 1.83 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)
FRV075-240F

FRV075-240F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

390 -
RFQ
FRV075-240F

Datasheet

Radial, Disc FRV Bulk Active - 240V (265V Int) 750 mA 1.5 A 7.5 A 18 s 320 mOhms 840 mOhms - -20°C ~ 85°C - - - Through Hole 0.453" L x 0.189" W (11.50mm x 4.80mm) 0.921" (23.40mm) - 0.201" (5.10mm)
RS90-040

RS90-040

PTC RESET FUSE 72V 400MA RADIAL

OptiFuse

499 -
RFQ
RS90-040

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 400 mA 800 mA 40 A 3.8 s 550 mOhms 1.29 Ohms - -40°C ~ 85°C - - - Through Hole 0.299" Dia x 0.122" T (7.60mm x 3.10mm) 0.531" (13.50mm) - 0.201" (5.10mm)
RS90-030

RS90-030

PTC RESET FUSE 72V 300MA RADIAL

OptiFuse

499 -
RFQ
RS90-030

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 300 mA 600 mA 40 A 3 s 880 mOhms 2.1 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.512" (13.00mm) - 0.201" (5.10mm)
RS90-035

RS90-035

PTC RESET FUSE 72V 350MA RADIAL

OptiFuse

489 -
RFQ
RS90-035

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 350 mA 750 mA 40 A 10 s 700 mOhms 2.5 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)
RS60RB-050

RS60RB-050

PTC RESET FUSE 60V 500MA RADIAL

OptiFuse

875 -
RFQ
RS60RB-050

Datasheet

Radial, Disc RS60RB 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)
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