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
RS30-110

RS30-110

PTC RESET FUSE 30V 1.1A RADIAL

OptiFuse

2,936 -
RFQ
RS30-110

Datasheet

Radial, Disc RS30 Bulk Active Polymeric 30V 1.1 A 2.2 A 100 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)
PICOASMDCH016F-2

PICOASMDCH016F-2

PPTC-MINI-PSW

Littelfuse Inc.

6,539 -
RFQ
PICOASMDCH016F-2

Datasheet

0805 (2012 Metric), Concave PolySwitch®, picoASMD Tape & Reel (TR) Active Polymeric 16V 160 mA 680 mA 40 A 100 ms 800 mOhms 6 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.083" L x 0.055" W (2.10mm x 1.40mm) - 0.031" (0.80mm) -
TRF250-120UST-B-0.5

TRF250-120UST-B-0.5

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

1,626 -
RFQ

-

Radial, Disc PolySwitch®, TRF250 Bag Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 1 s 6 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.236" L x 0.150" W (6.00mm x 3.80mm) 0.394" (10.00mm) - 0.197" (5.00mm)
MF-USML300-2

MF-USML300-2

PTC RESET FUSE 6V 3A 1210

Bourns Inc.

4,716 -
RFQ
MF-USML300-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 3 A 6 A 50 A 4 s 4 mOhms 18 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.024" (0.60mm) -
MF-USML700-2

MF-USML700-2

PTC RESET FUSE 6V 7A 1210

Bourns Inc.

7,914 -
RFQ
MF-USML700-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 7 A 14 A 50 A 2 s 1 mOhms 13.5 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.047" (1.20mm) -
RS90-090

RS90-090

PTC RESET FUSE 72V 900MA RADIAL

OptiFuse

6,200 -
RFQ
RS90-090

Datasheet

Radial, Disc RS90 Bulk Active Polymeric 72V (90V Int) 900 mA 1.8 A 40 A 7.2 s 200 mOhms 470 mOhms - -40°C ~ 85°C - - - Through Hole 0.461" Dia x 0.122" T (11.70mm x 3.10mm) 0.622" (15.80mm) - 0.201" (5.10mm)
MF-USML650-2

MF-USML650-2

PTC RESET FUSE 6V 6.5A 1210

Bourns Inc.

7,423 -
RFQ
MF-USML650-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 6.5 A 13 A 50 A 2 s 1 mOhms 14 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.047" (1.20mm) -
MICROSMD190LR-2

MICROSMD190LR-2

PTC RESET FUSE 6V 1.9A 1210

Littelfuse Inc.

3,000 -
RFQ
MICROSMD190LR-2

Datasheet

1210 (3225 Metric), Concave PolySwitch®, LoRho Tape & Reel (TR) Obsolete Polymeric 6V 1.9 A 4.9 A 50 A 4 s 6 mOhms - - - - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.039" (1.00mm) -
TRF250-145-2

TRF250-145-2

PTC RESET FUSE 60V 145MA RADIAL

Littelfuse Inc.

1,700 -
RFQ
TRF250-145-2

Datasheet

Radial, Disc PolySwitch®, TRF250 Tape & Reel (TR) Active Polymeric 60V (250V Int) 145 mA 290 mA 3 A 5 s 3 Ohms 14 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.200" (5.08mm)
PICOASMDCH050F-2

PICOASMDCH050F-2

PPTC-MINI-PSW

Littelfuse Inc.

3,844 -
RFQ
PICOASMDCH050F-2

Datasheet

0805 (2012 Metric), Concave PolySwitch®, picoASMD Tape & Reel (TR) Active Polymeric 16V 500 mA 1.7 A 40 A 100 ms 250 mOhms 1.6 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) -
AGRF500-2

AGRF500-2

PTC RESET FUSE 16V 5A RADIAL

Littelfuse Inc.

1,640 -
RFQ
AGRF500-2

Datasheet

Radial, Disc PolySwitch®, AGRF Tape & Reel (TR) Active Polymeric 16V 5 A 9.4 A 100 A 2.5 s 14 mOhms 34 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.409" Dia x 0.122" T (10.40mm x 3.10mm) 0.614" (15.60mm) - 0.199" (5.05mm)
TRF250-120ST-RG-B-0.5

TRF250-120ST-RG-B-0.5

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

1,904 -
RFQ

-

Radial, Disc PolySwitch®, TRF250 Bag Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 4 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.236" L x 0.150" W (6.00mm x 3.80mm) 0.394" (10.00mm) - 0.197" (5.00mm)
RS60RB-075

RS60RB-075

PTC RESET FUSE 60V 750MA RADIAL

OptiFuse

1,299 -
RFQ
RS60RB-075

Datasheet

Radial, Disc RS60RB Bulk Active 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)
MF-NSML190-2

MF-NSML190-2

PTC RESET FUSE 6V 1.9A 1206

Bourns Inc.

3,372 -
RFQ

-

1206 (3216 Metric), Concave Multifuse®, MF-NSML Tape & Reel (TR) Obsolete Polymeric 6V 1.9 A 4.9 A 50 A 1 s 5 mOhms 28 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.024" (0.60mm) -
MF-NSML200-2

MF-NSML200-2

PTC RESET FUSE 6V 2A 1206

Bourns Inc.

8,591 -
RFQ

-

1206 (3216 Metric), Concave Multifuse®, MF-NSML Tape & Reel (TR) Obsolete Polymeric 6V 2 A 4 A 50 A 1 s 5 mOhms 25 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.024" (0.60mm) -
MF-NSML450-2

MF-NSML450-2

PTC RESET FUSE 6V 4.5A 1206

Bourns Inc.

6,839 -
RFQ

-

1206 (3216 Metric), Concave Multifuse®, MF-NSML Tape & Reel (TR) Obsolete Polymeric 6V 4.5 A 9 A 50 A 2 s 1 mOhms 14 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.047" (1.20mm) -
MICROSMD500LR-2

MICROSMD500LR-2

PTC RESET FUSE 6V 5A 1210

Littelfuse Inc.

2,662 -
RFQ

-

1210 (3225 Metric), Concave PolySwitch®, microSMD Tape & Reel (TR) Obsolete Polymeric 6V 5 A 10 A 50 A 2 s 2 mOhms 7 mOhms - -40°C ~ 80°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.039" (1.00mm) -
VLP270F

VLP270F

PTC RESET FUSE 16V 2.7A STRAP

Littelfuse Inc.

42,972 -
RFQ
VLP270F

Datasheet

Strap PolySwitch®, VLP Bulk Active Polymeric 16V 2.7 A 6.5 A 60 A 5 s 12 mOhms 36 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.201" W (22.00mm x 5.10mm) - 0.032" (0.80mm) -
AGRF800S-1

AGRF800S-1

PTC RESET FUSE 16V 8A RADIAL

Littelfuse Inc.

9,994 -
RFQ
AGRF800S-1

Datasheet

Radial, Disc PolySwitch®, AGRF Bulk Active Polymeric 16V 8 A 15 A 100 A 5.5 s 17.5 mOhms 18.1 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.118" L x 0.118" W (3.00mm x 3.00mm) 0.874" (22.20mm) - 0.199" (5.05mm)
VLP210XLF

VLP210XLF

PTC RESET FUSE 16V 2.1A STRAP

Littelfuse Inc.

9,655 -
RFQ

-

Strap PolySwitch®, VLP Bulk Obsolete Polymeric 16V 2.1 A 4.7 A 100 A 5 s 18 mOhms 60 mOhms - -40°C ~ 85°C - - - User Defined 0.648" L x 0.280" W (16.45mm x 7.10mm) - 0.032" (0.80mm) -
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