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
NANOSMD350LR-2

NANOSMD350LR-2

PTC RESET FUSE 6V 3.5A 1206

Littelfuse Inc.

4,572 -
RFQ
NANOSMD350LR-2

Datasheet

1206 (3216 Metric) PolySwitch®, LoRho Tape & Reel (TR) Obsolete Polymeric 6V 3.5 A 6.3 A 50 A 5 s 4 mOhms - - - - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.61mm) - 0.039" (1.00mm) -
FEMTOSMDC035F-02

FEMTOSMDC035F-02

PTC RESET FUSE 6V 350MA 0603

Littelfuse Inc.

2,750 -
RFQ
FEMTOSMDC035F-02

Datasheet

0603 (1608 Metric), Concave PolySwitch®, femtoSMD Tape & Reel (TR) Active Polymeric 6V 350 mA 700 mA 40 A 100 ms 280 mOhms 1 Ohms - -40°C ~ 85°C - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.030" (0.75mm) -
NANOSMD350LR-C-2

NANOSMD350LR-C-2

PTC RESET FUSE 12V 3.5A 1206

Littelfuse Inc.

6,032 -
RFQ
NANOSMD350LR-C-2

Datasheet

1206 (3216 Metric) PolySwitch®, LoRho Tape & Reel (TR) Obsolete Polymeric 12V 3.5 A 6.3 A 9 A 5 s 4 mOhms 18 mOhms - -20°C ~ 85°C - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.60mm) - 0.032" (0.80mm) -
NANOSMD400LR-C-2

NANOSMD400LR-C-2

PTC RESET FUSE 12V 4A 1206

Littelfuse Inc.

3,912 -
RFQ
NANOSMD400LR-C-2

Datasheet

1206 (3216 Metric) PolySwitch®, LoRho Tape & Reel (TR) Obsolete Polymeric 12V 4 A 8 A 9 A 2 s 4 mOhms 10 mOhms - -20°C ~ 85°C - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.60mm) - 0.032" (0.80mm) -
NANOSMD380LR-2

NANOSMD380LR-2

PTC RESET FUSE 6V 3.8A 1206

Littelfuse Inc.

7,464 -
RFQ

-

1206 (3216 Metric) PolySwitch®, microSMD Tape & Reel (TR) Obsolete Polymeric 6V 3.8 A 8 A 50 A 10 s 4 mOhms 14 mOhms - -40°C ~ 80°C - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.61mm) - 0.039" (1.00mm) -
NANOSMD400LR-2

NANOSMD400LR-2

PTC RESET FUSE 6V 4A 1206

Littelfuse Inc.

7,585 -
RFQ

-

1206 (3216 Metric) PolySwitch®, microSMD Tape & Reel (TR) Obsolete Polymeric 6V 4 A 8 A 50 A 2 s 4 mOhms 10 mOhms - -40°C ~ 80°C - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.61mm) - 0.039" (1.00mm) -
NANOSMD500LR-2

NANOSMD500LR-2

PTC RESET FUSE 6V 5A 1206

Littelfuse Inc.

5,531 -
RFQ

-

1206 (3216 Metric) PolySwitch®, microSMD Tape & Reel (TR) Obsolete Polymeric 6V 5 A 10 A 50 A 2 s 2 mOhms 8 mOhms - -40°C ~ 80°C - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.61mm) - 0.032" (0.80mm) -
NANOSMD600LR-2

NANOSMD600LR-2

PTC RESET FUSE 6V 6A 1206

Littelfuse Inc.

2,903 -
RFQ

-

1206 (3216 Metric) PolySwitch®, microSMD Tape & Reel (TR) Obsolete Polymeric 6V 6 A 12 A 50 A 2 s 2 mOhms 7 mOhms - -40°C ~ 80°C - - - Surface Mount 0.127" L x 0.063" W (3.22mm x 1.61mm) - 0.039" (1.00mm) -
0ZTG0110FF2C

0ZTG0110FF2C

PTC RESET FUSE 6V 1.1A 1812

Bel Fuse Inc.

3,922 -
RFQ
0ZTG0110FF2C

Datasheet

1812 (4532 Metric), Concave 0ZTG Tape & Reel (TR) Active Polymeric 6V 1.1 A 2.2 A 40 A 1 s 50 mOhms 430 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.030" (0.75mm) -
RL3006-50-40-25-PTO

RL3006-50-40-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

8,901 -
RFQ
RL3006-50-40-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-50-25-PTO

RL3006-50-50-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

6,738 -
RFQ
RL3006-50-50-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-60-25-PTO

RL3006-50-60-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

4,991 -
RFQ
RL3006-50-60-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-70-25-PTO

RL3006-50-70-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

2,739 -
RFQ
RL3006-50-70-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-100-25-PTO

RL3006-50-100-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

4,723 -
RFQ
RL3006-50-100-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-110-25-PTO

RL3006-50-110-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

5,400 -
RFQ
RL3006-50-110-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-80-25-PTO

RL3006-50-80-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

2,832 -
RFQ
RL3006-50-80-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3006-50-90-25-PTO

RL3006-50-90-25-PTO

PTC RESET FUSE 25V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

3,958 -
RFQ
RL3006-50-90-25-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 25V - - - 35 s - - 50 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3005-10-110-12-PTO

RL3005-10-110-12-PTO

PTC RESET FUSE 12V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

9,294 -
RFQ
RL3005-10-110-12-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 12V - - - 35 s - - 10 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
RL3005-25-110-12-PTO

RL3005-25-110-12-PTO

PTC RESET FUSE 12V RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

8,595 -
RFQ
RL3005-25-110-12-PTO

Datasheet

Radial, Disc PTO Bulk Obsolete Ceramic 12V - - - 35 s - - 25 Ohms - - - - Through Hole 0.350" Dia x 0.150" T (8.90mm x 3.80mm) 0.350" (8.89mm) - 0.250" (6.35mm)
PTCTZ3NR400HTE

PTCTZ3NR400HTE

PTC RESET FUSE 265V 80MA 2SMD

Vishay Beyschlag/Draloric/BC Components

5,097 -
RFQ
PTCTZ3NR400HTE

Datasheet

2-SMD PTCTZ Tape & Reel (TR) Obsolete Ceramic 265V 80 mA 130 mA 2 A 800 ms - - 40 Ohms - - - - Surface Mount 0.283" L x 0.394" W (7.20mm x 10.00mm) - 0.142" (3.60mm) -
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