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
PTR030V0700-TR

PTR030V0700-TR

PTC RESET FUSE 30V 7A RADIAL

Eaton - Electronics Division

7,243 -
RFQ
PTR030V0700-TR

Datasheet

Radial, Disc PTR030V Tape & Reel (TR) Active Polymeric 30V 7 A 14 A 100 A 17.5 s 5 mOhms 30 mOhms - -40°C ~ 85°C - - - Through Hole 0.752" L x 0.118" W (19.10mm x 3.00mm) 1.051" (26.70mm) - 0.394" (10.00mm)
RUSBF075-AP

RUSBF075-AP

PTC RESET FUSE 6V 750MA RADIAL

Littelfuse Inc.

2,000 -
RFQ
RUSBF075-AP

Datasheet

Radial, Disc PolySwitch®, RUSBF Cut Tape (CT) Active Polymeric 6V 750 mA 1.3 A 40 A 400 ms 110 mOhms 230 mOhms - -40°C ~ 85°C - - - Through Hole 0.272" Dia x 0.122" T (6.90mm x 3.10mm) 0.449" (11.40mm) - 0.201" (5.10mm)
1206L025/24YR

1206L025/24YR

PTC RESET FUSE 24V 250MA 1206

Littelfuse Inc.

3,255 -
RFQ
1206L025/24YR

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, 1206L Tape & Reel (TR) Active Polymeric 24V 250 mA 550 mA 100 A 80 ms 550 mOhms 2.3 Ohms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.039" (1.00mm) -
RXEF090S-2

RXEF090S-2

PTC RESET FUSE 72V 900MA RADIAL

Littelfuse Inc.

3,000 -
RFQ
RXEF090S-2

Datasheet

Radial, Disc PolySwitch®, RXEF Tape & Reel (TR) Active Polymeric 72V 900 mA 1.8 A 40 A 7.2 s 200 mOhms 470 mOhms - -40°C ~ 85°C - - - Through Hole 0.441" L x 0.118" W (11.20mm x 3.00mm) 0.622" (15.80mm) - 0.199" (5.05mm)
RUSBF155-AP

RUSBF155-AP

PTC RESET FUSE 6V 1.55A RADIAL

Littelfuse Inc.

1,755 -
RFQ
RUSBF155-AP

Datasheet

Radial, Disc PolySwitch®, RUSBF Cut Tape (CT) Active Polymeric 6V 1.55 A 2.65 A 40 A 2.2 s 40 mOhms 100 mOhms - -40°C ~ 85°C - - - Through Hole 0.272" Dia x 0.122" T (6.90mm x 3.10mm) 0.461" (11.70mm) - 0.201" (5.10mm)
RUSBF135-AP

RUSBF135-AP

PTC RESET FUSE 16V 1.35A RADIAL

Littelfuse Inc.

1,531 -
RFQ
RUSBF135-AP

Datasheet

Radial, Disc PolySwitch®, RUSBF Cut Tape (CT) Active Polymeric 16V 1.35 A 2.7 A 40 A 4.5 s 40 mOhms 112 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.532" (13.50mm) - 0.199" (5.05mm)
16R160BPR

16R160BPR

PTC RESET FUSE 16V 1.6A RADIAL

Littelfuse Inc.

2,000 -
RFQ
16R160BPR

Datasheet

Radial, Disc POLY-FUSE®, USBR Tape & Reel (TR) Obsolete Polymeric 16V 1.6 A 3.2 A 40 A 9 s 30 mOhms 110 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.598" (15.20mm) - 0.201" (5.10mm)
R0603LR-035-R

R0603LR-035-R

PTC RESET FUSE 6V 350MA 0603

OptiFuse

12,000 -
RFQ
R0603LR-035-R

Datasheet

0603 (1608 Metric), Concave R0603LR Tape & Reel (TR) Active Polymeric 6V 350 mA 750 mA 100 A 100 ms 200 mOhms 1 Ohms - -40°C ~ 85°C - - - Surface Mount 0.063" L x 0.029" W (1.60mm x 0.73mm) - 0.030" (0.75mm) -
R2920-100-R

R2920-100-R

PTC RESET FUSE 33V 1.1A 2920

OptiFuse

4,000 -
RFQ
R2920-100-R

Datasheet

2920 (7351 Metric), Concave R2920 Tape & Reel (TR) Active Polymeric 33V 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) - 0.039" (1.00mm) -
R2920-050-R

R2920-050-R

PTC RESET FUSE 60V 500MA 2920

OptiFuse

2,000 -
RFQ
R2920-050-R

Datasheet

2920 (7351 Metric), Concave R2920 Tape & Reel (TR) Active Polymeric 60V 500 mA 1 A 100 A 4 s 300 mOhms 1.4 Ohms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.045" (1.15mm) -
MF-NSML260-2

MF-NSML260-2

PTC RESET FUSE 6V 2.6A 1206

Bourns Inc.

9,767 -
RFQ

-

1206 (3216 Metric), Concave Multifuse®, MF-NSML Tape & Reel (TR) Obsolete Polymeric 6V 2.6 A 5.2 A 50 A 4 s 3 mOhms 26 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.024" (0.60mm) -
MF-USML270-2

MF-USML270-2

PTC RESET FUSE 6V 2.7A 1210

Bourns Inc.

9,109 -
RFQ
MF-USML270-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 2.7 A 5.4 A 50 A 4 s 4 mOhms 20 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.024" (0.60mm) -
RUSBF155-2

RUSBF155-2

PTC RESET FUSE 6V 1.55A RADIAL

Littelfuse Inc.

2,813 -
RFQ
RUSBF155-2

Datasheet

Radial, Disc PolySwitch®, RUSBF Tape & Reel (TR) Active Polymeric 6V 1.55 A 2.65 A 40 A 2.2 s 40 mOhms 100 mOhms - -40°C ~ 85°C - - - Through Hole 0.272" L x 0.122" W (6.90mm x 3.10mm) 0.461" (11.70mm) - 0.200" (5.08mm)
RGEF400K-2

RGEF400K-2

PTC RESET FUSE 16V 4A RADIAL

Littelfuse Inc.

1,077 -
RFQ
RGEF400K-2

Datasheet

Radial, Disc PolySwitch®, RGEF Tape & Reel (TR) 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)
MF-PSML110-2

MF-PSML110-2

PTC RESET FUSE 6V 0805

Bourns Inc.

6,243 -
RFQ
MF-PSML110-2

Datasheet

0805 (2012 Metric), Concave Multifuse®, MF-PSML Tape & Reel (TR) Obsolete Polymeric 6V - - - - 17.5 mOhms - - -40°C ~ 85°C - - - Surface Mount 0.085" L x 0.053" W (2.15mm x 1.35mm) - 0.024" (0.60mm) -
RS60RB-025

RS60RB-025

PTC RESET FUSE 60V 250MA RADIAL

OptiFuse

4,884 -
RFQ
RS60RB-025

Datasheet

Radial, Disc RS60RB Bulk Active Polymeric 60V 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)
RS60RB-010

RS60RB-010

PTC RESET FUSE 60V 100MA RADIAL

OptiFuse

4,000 -
RFQ
RS60RB-010

Datasheet

Radial, Disc RS60RB Bulk Active Polymeric 60V 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)
RGEF500K-AP

RGEF500K-AP

PTC RESET FUSE 16V 5A RADIAL

Littelfuse Inc.

3,925 -
RFQ
RGEF500K-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)
TRF250-183S-2

TRF250-183S-2

PTC RESET FUSE 100V 183MA RADIAL

Littelfuse Inc.

2,842 -
RFQ
TRF250-183S-2

Datasheet

Radial, Disc PolySwitch®, TRF250 Tape & Reel (TR) Active Polymeric 100V (250V Int) 183 mA 685 mA 10 A 1.8 s 800 mOhms 3.4 Ohms - -40°C ~ 85°C - - - Through Hole 0.295" Dia x 0.150" T (7.50mm x 3.80mm) 0.374" (9.50mm) - 0.197" (5.00mm)
MF-PSML350-2

MF-PSML350-2

PTC RESET FUSE 6V 3.5A 0805

Bourns Inc.

9,889 -
RFQ
MF-PSML350-2

Datasheet

0805 (2012 Metric), Concave Multifuse®, MF-PSML Tape & Reel (TR) Obsolete Polymeric 6V 3.5 A 7 A 50 A 5 s 3 mOhms 25 mOhms - -40°C ~ 85°C - - - Surface Mount 0.085" L x 0.053" W (2.15mm x 1.35mm) - 0.032" (0.80mm) -
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