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
TRF250-183US

TRF250-183US

PTC RESET FUSE 100V 183MA RADIAL

Littelfuse Inc.

240 -
RFQ
TRF250-183US

Datasheet

Radial, Disc PolySwitch®, TRF250 Bag 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 0.256" Dia x 0.118" T (6.50mm x 3.00mm) 0.256" (6.50mm) - 0.197" (5.00mm)
0ZRN0700FF1A

0ZRN0700FF1A

PTC RESET FUSE 16V 7A RADIAL

Bel Fuse Inc.

60 -
RFQ
0ZRN0700FF1A

Datasheet

Radial, Disc 0ZRN Bulk Active Polymeric 16V 7 A 13 A 100 A 7 s 10 mOhms 25 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.862" (21.90mm) - 0.201" (5.10mm)
ASMD125F-2

ASMD125F-2

PTC RESET FUSE 16V 1.04A 2SMD

Littelfuse Inc.

820 -
RFQ
ASMD125F-2

Datasheet

2-SMD PolySwitch®, ASMD Tape & Reel (TR) Active Polymeric 16V 1.04 A 2.46 A 40 A 20 s 57 mOhms 250 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.118" (3.00mm) -
TRF250-120T-B-0.5

TRF250-120T-B-0.5

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

450 -
RFQ
TRF250-120T-B-0.5

Datasheet

Radial, Disc PolySwitch®, TRF250 Bag Active Polymeric 60V (250V Int) 120 mA 240 mA 3 A 1.2 s 7 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-R300-AP

MF-R300-AP

PTC RESET FUSE 30V 3A RADIAL

Bourns Inc.

1,798 -
RFQ
MF-R300-AP

Datasheet

Radial, Disc Multifuse®, MF-R Cut Tape (CT) Active Polymeric 30V 3 A 6 A 40 A 10.8 s 20 mOhms 80 mOhms - -40°C ~ 85°C - - - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
CMF-RL25U-15-0

CMF-RL25U-15-0

PTC RESET FUSE 220V 60MA RADIAL

Bourns Inc.

372 -
RFQ
CMF-RL25U-15-0

Datasheet

Radial, Disc CMF-RL Bulk Active Ceramic 220V (600V Int) 60 mA 150 mA 900 mA 250 ms - - 25 Ohms -40°C ~ 125°C - - - Through Hole 0.205" L x 0.138" W (5.20mm x 3.50mm) 0.205" (5.20mm) - 0.197" (5.00mm)
0ZRN0100FF2D

0ZRN0100FF2D

PTC RESET FUSE 30V 1A RADIAL

Bel Fuse Inc.

206 -
RFQ
0ZRN0100FF2D

Datasheet

Radial, Disc 0ZRN Tape & Reel (TR) Active Polymeric 30V 1 A 1.8 A 40 A 5.2 s 180 mOhms 430 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.382" Dia x 0.118" T (9.70mm x 3.00mm) 0.535" (13.60mm) - 0.201" (5.10mm)
0ZRN0050FF2D

0ZRN0050FF2D

PTC RESET FUSE 30V 500MA RADIAL

Bel Fuse Inc.

38 -
RFQ
0ZRN0050FF2D

Datasheet

Radial, Disc 0ZRN Tape & Reel (TR) Active Polymeric 30V 500 mA 900 mA 40 A 2.5 s 480 mOhms 1.1 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.500" (12.70mm) - 0.201" (5.10mm)
ASMD200F-2

ASMD200F-2

PTC RESET FUSE 16V 1.73A 2SMD

Littelfuse Inc.

520 -
RFQ
ASMD200F-2

Datasheet

2-SMD PolySwitch®, ASMD Tape & Reel (TR) Active Polymeric 16V 1.73 A 3.93 A 40 A 30 s 50 mOhms 120 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.343" L x 0.250" W (8.70mm x 6.36mm) - 0.118" (3.00mm) -
PICOASMDC075S-2

PICOASMDC075S-2

PPTC-MINI-PSW

Littelfuse Inc.

245 -
RFQ
PICOASMDC075S-2

Datasheet

0805 (2012 Metric), Concave PolySwitch® picoASMDC Tape & Reel (TR) Active Polymeric 6V 750 mA 1.5 A 40 A 200 ms 100 mOhms 350 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.083" L x 0.055" W (2.10mm x 1.40mm) - 0.037" (0.93mm) -
TRF250-120U

TRF250-120U

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

990 -
RFQ
TRF250-120U

Datasheet

Radial, Disc PolySwitch®, TRF250 Bag Active 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)
AGRF700

AGRF700

PTC RESET FUSE 16V 7A RADIAL

Littelfuse Inc.

281 -
RFQ
AGRF700

Datasheet

Radial, Disc PolySwitch®, AGRF Bag Active Polymeric 16V 7 A 13.2 A 100 A 4 s 6.6 mOhms 20 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.441" L x 0.118" W (11.20mm x 3.00mm) 0.827" (21.00mm) - 0.199" (5.05mm)
PTR016V1300-BK

PTR016V1300-BK

PTC RESET FUSE 16V 13A RADIAL

Eaton - Electronics Division

70 -
RFQ
PTR016V1300-BK

Datasheet

Radial, Disc PTR016V Bulk Active Polymeric 16V 13 A 22.1 A 100 A 8.5 s 2 mOhms 8 mOhms - -40°C ~ 85°C - - - Through Hole 0.850" L x 0.122" W (21.60mm x 3.10mm) 1.142" (29.00mm) - 0.394" (10.00mm)
AHRL400

AHRL400

PTC RESET FUSE 4A 16V RAD

Littelfuse Inc.

438 -
RFQ
AHRL400

Datasheet

Radial, Disc PolySwitch®, AHRL Bulk Active Polymeric 16V 4 A 8 A 50 A 5 s 16 mOhms 28 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.331" L x 0.118" W (8.40mm x 3.00mm) 0.528" (13.40mm) - 0.199" (5.05mm)
MF-RHT070-2

MF-RHT070-2

PTC RESET FUSE 16V 700MA RADIAL

Bourns Inc.

39 -
RFQ
MF-RHT070-2

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Reel (TR) Active Polymeric 16V 700 mA 1.4 A 40 A 4 s 300 mOhms 800 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.270" L x 0.118" W (6.86mm x 3.00mm) 0.425" (10.80mm) - 0.114" (2.90mm)
0ZRM0100FF2B

0ZRM0100FF2B

PTC RESET FUSE 120V 1A RADIAL

Bel Fuse Inc.

322 -
RFQ
0ZRM0100FF2B

Datasheet

Radial, Disc 0ZRM Tape & Reel (TR) Active Polymeric 120V 1 A 2 A 10 A 15 s 180 mOhms 470 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.453" L x 0.161" W (11.50mm x 4.10mm) 0.791" (20.10mm) - 0.201" (5.10mm)
MF-RHT450-2

MF-RHT450-2

PTC RESET FUSE 16V 4.5A RADIAL

Bourns Inc.

52 -
RFQ
MF-RHT450-2

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Reel (TR) Active Polymeric 16V 4.5 A 7.8 A 100 A 3 s 22 mOhms 54 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.409" L x 0.118" W (10.40mm x 3.00mm) 0.614" (15.60mm) - 0.114" (2.90mm)
MF-RHT300-2

MF-RHT300-2

PTC RESET FUSE 16V 3A RADIAL

Bourns Inc.

40 -
RFQ
MF-RHT300-2

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Reel (TR) Active Polymeric 16V 3 A 6 A 100 A 5 s 33 mOhms 79 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.346" L x 0.118" W (8.80mm x 3.00mm) 0.543" (13.80mm) - 0.201" (5.10mm)
RHEF650

RHEF650

PTC RESET FUSE 16V 6.5A RADIAL

Littelfuse Inc.

500 -
RFQ
RHEF650

Datasheet

Radial, Disc PolySwitch®, RHEF Bag Active Polymeric 16V 6.5 A 12 A 100 A 5.5 s 11 mOhms 26 mOhms - -40°C ~ 125°C - - - Through Hole 0.500" L x 0.118" W (12.70mm x 3.00mm) 0.874" (22.20mm) - 0.199" (5.05mm)
0ZRM0110FF2B

0ZRM0110FF2B

PTC RESET FUSE 120V 1.1A RADIAL

Bel Fuse Inc.

318 -
RFQ
0ZRM0110FF2B

Datasheet

Radial, Disc 0ZRM Tape & Reel (TR) Active Polymeric 120V 1.1 A 2.2 A 8 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.524" Dia x 0.161" T (13.30mm x 4.10mm) 0.720" (18.30mm) - 0.201" (5.10mm)
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