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
RS90-055

RS90-055

PTC RESET FUSE 72V 550MA RADIAL

OptiFuse

484 -
RFQ
RS90-055

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 550 mA 1.2 A 40 A 10 s 400 mOhms 1.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.382" Dia x 0.122" T (9.70mm x 3.10mm) 0.551" (14.00mm) - 0.201" (5.10mm)
RS90-050

RS90-050

PTC RESET FUSE 72V 500MA RADIAL

OptiFuse

472 -
RFQ
RS90-050

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 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)
RS30-090

RS30-090

PTC RESET FUSE 30V 900MA RADIAL

OptiFuse

386 -
RFQ
RS30-090

Datasheet

Radial, Disc RS30 Bulk Active Polymeric 30V 900 mA 1.8 A 100 A 5.9 s 70 mOhms 220 mOhms - -40°C ~ 85°C - - - Through Hole 0.291" L x 0.118" W (7.40mm x 3.00mm) 0.480" (12.20mm) - 0.201" (5.10mm)
RGEF500-AP

RGEF500-AP

PTC RESET FUSE 16V 5A RADIAL

Littelfuse Inc.

152 -
RFQ
RGEF500-AP

Datasheet

Radial, Disc PolySwitch®, RGEF 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 0.390" L x 0.098" W (9.90mm x 2.50mm) 0.563" (14.30mm) - 0.199" (5.05mm)
PICOASMDCH035F-2

PICOASMDCH035F-2

PPTC-MINI-PSW

Littelfuse Inc.

744 -
RFQ
PICOASMDCH035F-2

Datasheet

0805 (2012 Metric), Concave PolySwitch®, picoASMD Tape & Reel (TR) Active Polymeric 16V 350 mA 1.1 A 40 A 100 ms 300 mOhms 1.9 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.083" L x 0.055" W (2.10mm x 1.40mm) - 0.047" (1.20mm) -
RXEF185-AP

RXEF185-AP

PTC RESET FUSE 72V 1.85A RADIAL

Littelfuse Inc.

209 -
RFQ
RXEF185-AP

Datasheet

Radial, Disc PolySwitch®, RXEF Cut Tape (CT) Active Polymeric 72V 1.85 A 3.7 A 40 A 12.6 s 80 mOhms 190 mOhms - -40°C ~ 85°C - - - Through Hole 0.689" Dia x 0.118" T (17.50mm x 3.00mm) 0.882" (22.40mm) - 0.199" (5.05mm)
RXEF185K-AP

RXEF185K-AP

PTC RESET FUSE 72V 1.85A RADIAL

Littelfuse Inc.

218 -
RFQ
RXEF185K-AP

Datasheet

Radial, Disc PolySwitch®, RXEF Cut Tape (CT) Active Polymeric 72V 1.85 A 3.7 A 40 A 12.6 s 80 mOhms 190 mOhms - -40°C ~ 85°C - - - Through Hole 0.660" Dia x 0.118" T (16.76mm x 3.00mm) 0.906" (23.00mm) - 0.199" (5.05mm)
FRV100-240F

FRV100-240F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

240 -
RFQ
FRV100-240F

Datasheet

Radial, Disc FRV Bulk Active - 240V (265V Int) 1 A 2 A 10 A 21 s 220 mOhms 580 mOhms - -20°C ~ 85°C - - - Through Hole 0.736" Dia (18.70mm) 0.961" (24.40mm) - 0.402" (10.20mm)
RS90-065

RS90-065

PTC RESET FUSE 72V 650MA RADIAL

OptiFuse

229 -
RFQ
RS90-065

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 650 mA 1.3 A 40 A 5.3 s 310 mOhms 720 mOhms - -40°C ~ 85°C - - - Through Hole 0.382" Dia x 0.122" T (9.70mm x 3.10mm) 0.571" (14.50mm) - 0.201" (5.10mm)
RS90-075

RS90-075

PTC RESET FUSE 72V 750MA RADIAL

OptiFuse

249 -
RFQ
RS90-075

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 750 mA 1.5 A 40 A 6.3 s 250 mOhms 600 mOhms - -40°C ~ 85°C - - - Through Hole 0.409" Dia x 0.122" T (10.40mm x 3.10mm) 0.598" (15.20mm) - 0.201" (5.10mm)
MF-RX018/250-0

MF-RX018/250-0

PTC RESET FUSE 60V 180MA RADIAL

Bourns Inc.

26 -
RFQ
MF-RX018/250-0

Datasheet

Radial, Disc Multifuse®, MF-RX/250 Bulk Active Polymeric 60V (250V Int) 180 mA - 10 A - 800 mOhms 4 Ohms - -40°C ~ 85°C - - - Through Hole 0.433" L x 0.181" W (11.00mm x 4.60mm) 0.535" (13.60mm) - 0.201" (5.10mm)
RUEF500K-AP

RUEF500K-AP

PTC RESET FUSE 30V 5A RADIAL

Littelfuse Inc.

1,578 -
RFQ
RUEF500K-AP

Datasheet

Radial, Disc PolySwitch®, RUEF Cut Tape (CT) Active Polymeric 30V 5 A 10 A 100 A 14.5 s 10 mOhms 50 mOhms - -40°C ~ 85°C - - - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 1.008" (25.60mm) - 0.400" (10.15mm)
FRV125-240F

FRV125-240F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

220 -
RFQ
FRV125-240F

Datasheet

Radial, Disc FRV Bulk Active - 240V (265V Int) 1.25 A 2.5 A 12.5 A 23 s 170 mOhms 440 mOhms - -20°C ~ 85°C - - - Through Hole 0.835" Dia (21.20mm) 1.079" (27.40mm) - 0.402" (10.20mm)
0ZSC0260FF1E

0ZSC0260FF1E

PTC RESET FUSE 20V 2.6A STRAP

Bel Fuse Inc.

710 -
RFQ
0ZSC0260FF1E

Datasheet

Strap 0ZSC Bulk Active Polymeric 20V 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) -
R2920-100-60-R

R2920-100-60-R

PTC RESET FUSE 60V 1.1A 2920

OptiFuse

1,000 -
RFQ
R2920-100-60-R

Datasheet

2920 (7351 Metric), Concave R2920 Tape & Reel (TR) Active Polymeric 60V 1.1 A 2.2 A 100 A 500 ms 90 mOhms 410 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.067" (1.70mm) -
RS120-025

RS120-025

PTC RESET FUSE 120V 250MA RADIAL

OptiFuse

913 -
RFQ
RS120-025

Datasheet

Radial, Disc RS120 Bulk Active Polymeric 120V (135V Int) 250 mA 500 mA 3 A 7.5 s 1.25 Ohms 3 Ohms - -40°C ~ 85°C - - - Through Hole 0.311" Dia x 0.150" T (7.90mm x 3.80mm) 0.512" (13.00mm) - 0.201" (5.10mm)
RS90-110

RS90-110

PTC RESET FUSE 72V 1.1A RADIAL

OptiFuse

499 -
RFQ
RS90-110

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 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)
RS120-010

RS120-010

PTC RESET FUSE 120V 100MA RADIAL

OptiFuse

29 -
RFQ
RS120-010

Datasheet

Radial, Disc RS120 Bulk Active Polymeric 120V (135V Int) 100 mA 200 mA 2 A 10 s 3 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.311" Dia x 0.150" T (7.90mm x 3.80mm) 0.512" (13.00mm) - 0.201" (5.10mm)
FRV150-240F

FRV150-240F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

250 -
RFQ
FRV150-240F

Datasheet

Radial, Disc FRV Bulk Active - 240V (265V Int) 1.5 A 3 A 15 A 23 s 120 mOhms 320 mOhms - -20°C ~ 85°C - - - Through Hole 0.921" Dia (23.40mm) 1.217" (30.90mm) - 0.402" (10.20mm)
LVR040S-2

LVR040S-2

PTC RESET FUSE 240V 400MA RADIAL

Littelfuse Inc.

385 -
RFQ
LVR040S-2

Datasheet

Radial, Disc PolySwitch®, LVR 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) 0.768" (19.50mm) - 0.200" (5.08mm)
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