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
RLD30P500UFF

RLD30P500UFF

PTC RESET FUSE 30V 5A RADIAL

Littelfuse Inc.

4,817 -
RFQ
RLD30P500UFF

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)
RLD30P600UFF

RLD30P600UFF

PTC RESET FUSE 30V 6A RADIAL

Littelfuse Inc.

2,453 -
RFQ
RLD30P600UFF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 6 A 12 A 40 A 16 s 5 mOhms 40 mOhms - -40°C ~ 85°C - - - Through Hole 0.650" L x 0.118" W (16.50mm x 3.00mm) 0.980" (24.90mm) - 0.402" (10.20mm)
RLD30P700UFF

RLD30P700UFF

PTC RESET FUSE 30V 7A RADIAL

Littelfuse Inc.

3,814 -
RFQ
RLD30P700UFF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 7 A 14 A 40 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) - 0.402" (10.20mm)
RLD30P800UFF

RLD30P800UFF

PTC RESET FUSE 30V 8A RADIAL

Littelfuse Inc.

9,712 -
RFQ
RLD30P800UFF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 8 A 16 A 40 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)
RLD30P900UFF

RLD30P900UFF

PTC RESET FUSE 30V 9A RADIAL

Littelfuse Inc.

3,119 -
RFQ
RLD30P900UFF

Datasheet

Radial, Disc POLY-FUSE®, RLD30 Tape & Box (TB) Obsolete Polymeric 30V 9 A 18 A 40 A 20 s 5 mOhms 20 mOhms - -40°C ~ 85°C - - - Through Hole 0.949" L x 0.118" W (24.10mm x 3.00mm) 1.169" (29.70mm) - 0.402" (10.20mm)
RLD60P010XFF

RLD60P010XFF

PTC RESET FUSE 60V 100MA RADIAL

Littelfuse Inc.

8,458 -
RFQ
RLD60P010XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete 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)
RLD60P017XFF

RLD60P017XFF

PTC RESET FUSE 60V 170MA RADIAL

Littelfuse Inc.

6,933 -
RFQ
RLD60P017XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 170 mA 340 mA 40 A 3 s 3.3 Ohms 8 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)
RLD60P020XFF

RLD60P020XFF

PTC RESET FUSE 60V 200MA RADIAL

Littelfuse Inc.

7,291 -
RFQ
RLD60P020XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 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) 0.480" (12.20mm) - 0.201" (5.10mm)
RLD60P025XFF

RLD60P025XFF

PTC RESET FUSE 60V 250MA RADIAL

Littelfuse Inc.

5,657 -
RFQ
RLD60P025XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete 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)
RLD60P030XFF

RLD60P030XFF

PTC RESET FUSE 60V 300MA RADIAL

Littelfuse Inc.

4,414 -
RFQ
RLD60P030XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 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)
RLD60P040XFF

RLD60P040XFF

PTC RESET FUSE 60V 400MA RADIAL

Littelfuse Inc.

3,097 -
RFQ
RLD60P040XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 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) 0.532" (13.50mm) - 0.201" (5.10mm)
RLD60P050XFF

RLD60P050XFF

PTC RESET FUSE 60V 500MA RADIAL

Littelfuse Inc.

8,243 -
RFQ
RLD60P050XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete 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)
RLD60P065XFF

RLD60P065XFF

PTC RESET FUSE 60V 650MA RADIAL

Littelfuse Inc.

5,926 -
RFQ
RLD60P065XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 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)
RLD60P075XFF

RLD60P075XFF

PTC RESET FUSE 60V 750MA RADIAL

Littelfuse Inc.

2,902 -
RFQ
RLD60P075XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 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)
RLD60P090XFF

RLD60P090XFF

PTC RESET FUSE 60V 900MA RADIAL

Littelfuse Inc.

2,734 -
RFQ
RLD60P090XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) Obsolete Polymeric 60V 900 mA 1.8 A 40 A 7.2 s 200 mOhms 470 mOhms - -40°C ~ 85°C - - - Through Hole 0.461" Dia x 0.118" T (11.70mm x 3.00mm) 0.618" (15.70mm) - 0.201" (5.10mm)
RLD60P110XFF

RLD60P110XFF

PTC RESET FUSE 60V 1.1A RADIAL

Littelfuse Inc.

2,963 -
RFQ
RLD60P110XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 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)
RLD60P135XFF

RLD60P135XFF

PTC RESET FUSE 60V 1.35A RADIAL

Littelfuse Inc.

4,612 -
RFQ
RLD60P135XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 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)
RLD60P160XFF

RLD60P160XFF

PTC RESET FUSE 60V 1.6A RADIAL

Littelfuse Inc.

4,172 -
RFQ
RLD60P160XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 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)
RLD60P185XFF

RLD60P185XFF

PTC RESET FUSE 60V 1.85A RADIAL

Littelfuse Inc.

5,025 -
RFQ
RLD60P185XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 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)
RLD60P250XFF

RLD60P250XFF

PTC RESET FUSE 60V 2.5A RADIAL

Littelfuse Inc.

2,608 -
RFQ
RLD60P250XFF

Datasheet

Radial, Disc POLY-FUSE®, RLD60 Tape & Box (TB) 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)
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