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
RUSB110

RUSB110

PTC RESET FUSE 16V 1.1A RADIAL

Littelfuse Inc.

6,207 -
RFQ
RUSB110

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 1.1 A 2.2 A 40 A 2.3 s 50 mOhms 140 mOhms - - - - - Through Hole 0.291" L x 0.118" W (7.40mm x 3.00mm) 0.559" (14.20mm) - 0.199" (5.05mm)
RUSB160

RUSB160

PTC RESET FUSE 16V 1.6A RADIAL

Littelfuse Inc.

2,602 -
RFQ
RUSB160

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 1.6 A 3.2 A 40 A 9 s 300 mOhms 110 mOhms - - - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.598" (15.20mm) - 0.199" (5.05mm)
RUSB185

RUSB185

PTC RESET FUSE 16V 1.85A RADIAL

Littelfuse Inc.

8,391 -
RFQ
RUSB185

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 1.85 A 3.7 A 40 A 10 s 30 mOhms 90 mOhms - - - - - Through Hole 0.402" L x 0.118" W (10.20mm x 3.00mm) 0.618" (15.70mm) - 0.199" (5.05mm)
TR250-145-RA-C-0.5

TR250-145-RA-C-0.5

PTC RESET FUSE 60V 145MA RADIAL

Littelfuse Inc.

8,150 -
RFQ

-

Radial, Disc PolySwitch® Bulk Obsolete - 60V 145 mA - 3 A 2.5 s - - - - - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.197" (5.00mm)
RXE005

RXE005

PTC RESET FUSE 60V 50MA RADIAL

Littelfuse Inc.

5,577 -
RFQ
RXE005

Datasheet

Radial, Disc PolySwitch®, RXE Bulk Obsolete Polymeric 60V 50 mA 100 mA 40 A 5 s 7.3 Ohms 20 Ohms - - - - - Through Hole 0.315" Dia x 0.118" T (8.00mm x 3.00mm) 0.327" (8.30mm) - 0.199" (5.05mm)
PTSB-R100-V12

PTSB-R100-V12

PTC RESET FUSE 12V 170MA 2SMD

Amphenol Advanced Sensors (Thermometrics)

9,437 -
RFQ
PTSB-R100-V12

Datasheet

2-SMD PTSM Bulk Active Ceramic 12V 170 mA 340 mA - - - - 10 Ohms - - - - Surface Mount 0.300" L x 0.300" W (7.62mm x 7.62mm) - 0.185" (4.70mm) -
RGE1000

RGE1000

PTC RESET FUSE 16V 10A RADIAL

Littelfuse Inc.

4,453 -
RFQ
RGE1000

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 10 A 17 A 100 A 6 s 4 mOhms - - - - - - Through Hole 0.630" L x 0.098" W (16.00mm x 2.50mm) 0.992" (25.20mm) - 0.199" (5.05mm)
RHE070

RHE070

PTC RESET FUSE 16V 700MA RADIAL

Littelfuse Inc.

7,956 -
RFQ
RHE070

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 700 mA 1.4 A 40 A 4 s 300 mOhms 1.4 Ohms - - - - - Through Hole 0.272" L x 0.118" W (6.90mm x 3.00mm) 0.425" (10.80mm) - 0.199" (5.05mm)
RHE400

RHE400

PTC RESET FUSE 16V 4A RADIAL

Littelfuse Inc.

8,419 -
RFQ
RHE400

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 4 A 7 A 100 A 8 s 18 mOhms 44 mOhms - - - - - Through Hole 0.449" L x 0.118" W (11.40mm x 3.00mm) 0.709" (18.00mm) - 0.199" (5.05mm)
RHE650

RHE650

PTC RESET FUSE 16V 6.5A RADIAL

Littelfuse Inc.

8,230 -
RFQ
RHE650

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 6.5 A 12 A 100 A 5.5 s 11 mOhms 4.3 Ohms - - - - - Through Hole 0.500" L x 0.118" W (12.70mm x 3.00mm) 0.874" (22.20mm) - 0.199" (5.05mm)
RHE1500

RHE1500

PTC RESET FUSE 16V 15A RADIAL

Littelfuse Inc.

5,893 -
RFQ
RHE1500

Datasheet

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 16V 15 A 28 A 100 A 20 s 3.2 mOhms - - - - - - Through Hole 0.925" L x 0.142" W (23.50mm x 3.60mm) 1.130" (28.70mm) - 0.400" (10.15mm)
RLD30P090UF

RLD30P090UF

PTC RESET FUSE 30V 900MA RADIAL

Littelfuse Inc.

2,775 -
RFQ
RLD30P090UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 900 mA 1.8 A 40 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)
RLD30P110UF

RLD30P110UF

PTC RESET FUSE 30V 1.1A RADIAL

Littelfuse Inc.

2,197 -
RFQ
RLD30P110UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 1.1 A 2.2 A 40 A 6.6 s 50 mOhms 170 mOhms - -40°C ~ 85°C - - - Through Hole 0.291" L x 0.118" W (7.40mm x 3.00mm) 0.559" (14.20mm) - 0.201" (5.10mm)
RLD30P135UF

RLD30P135UF

PTC RESET FUSE 30V 1.35A RADIAL

Littelfuse Inc.

8,659 -
RFQ
RLD30P135UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 1.35 A 2.7 A 40 A 7.3 s 40 mOhms 130 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.532" (13.50mm) - 0.201" (5.10mm)
RLD30P160UF

RLD30P160UF

PTC RESET FUSE 30V 1.6A RADIAL

Littelfuse Inc.

2,705 -
RFQ
RLD30P160UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 1.6 A 3.2 A 40 A 8 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)
RLD30P185UF

RLD30P185UF

PTC RESET FUSE 30V 1.85A RADIAL

Littelfuse Inc.

9,550 -
RFQ
RLD30P185UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 1.85 A 3.7 A 40 A 8.7 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) - 0.201" (5.10mm)
RLD30P250UF

RLD30P250UF

PTC RESET FUSE 30V 2.5A RADIAL

Littelfuse Inc.

5,635 -
RFQ
RLD30P250UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 2.5 A 5 A 40 A 10.3 s 20 mOhms 70 mOhms - -40°C ~ 85°C - - - Through Hole 0.449" L x 0.118" W (11.40mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
RLD30P300UF

RLD30P300UF

PTC RESET FUSE 30V 3A RADIAL

Littelfuse Inc.

5,526 -
RFQ
RLD30P300UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 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 0.449" L x 0.118" W (11.40mm x 3.00mm) 0.681" (17.30mm) - 0.201" (5.10mm)
RLD30P400UF

RLD30P400UF

PTC RESET FUSE 30V 4A RADIAL

Littelfuse Inc.

8,725 -
RFQ
RLD30P400UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 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 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.791" (20.10mm) - 0.201" (5.10mm)
RLD30P500UF

RLD30P500UF

PTC RESET FUSE 30V 5A RADIAL

Littelfuse Inc.

9,050 -
RFQ
RLD30P500UF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 5 A 10 A 40 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) 0.980" (24.90mm) - 0.402" (10.20mm)
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