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
PTR030V0250-TR

PTR030V0250-TR

PTC RESET FUSE 30V 2.5A RADIAL

Eaton - Electronics Division

1,430 -
RFQ
PTR030V0250-TR

Datasheet

Radial, Disc PTR030V Tape & Reel (TR) Active 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) - 0.197" (5.00mm)
MF-R090-0-17

MF-R090-0-17

PTC RESETTABLE 0.9A 60V RADIAL L

Bourns Inc.

2,343 -
RFQ
MF-R090-0-17

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 60V 900 mA 1.8 A 40 A 7.2 s 140 mOhms 470 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.461" Dia x 0.122" T (11.70mm x 3.10mm) 0.657" (16.70mm) - 0.201" (5.10mm)
MF-RX110/72-2-14

MF-RX110/72-2-14

PTC RESET FUSE 72V 1.1A RADIAL

Bourns Inc.

2,999 -
RFQ
MF-RX110/72-2-14

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Cut Tape (CT) Active Polymeric 72V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C - - - Through Hole 0.427" L x 0.122" W (10.84mm x 3.10mm) 0.663" (16.84mm) - 0.201" (5.10mm)
MF-R185-AP

MF-R185-AP

PTC RESET FUSE 30V 1.85A RADIAL

Bourns Inc.

2,594 -
RFQ
MF-R185-AP

Datasheet

Radial, Disc Multifuse®, MF-R Cut Tape (CT) Active Polymeric 30V 1.85 A 3.7 A 40 A 8.7 s 40 mOhms 110 mOhms - -40°C ~ 85°C - - - Through Hole 0.472" Dia x 0.118" T (12.00mm x 3.00mm) 0.724" (18.40mm) - 0.201" (5.10mm)
MF-NSMF175-2

MF-NSMF175-2

1206 POLYMER PTC 1.75A/6V

Bourns Inc.

2,580 -
RFQ
MF-NSMF175-2

Datasheet

1206 (3216 Metric), Concave Multifuse®, MF-NSMF Tape & Reel (TR) Active Polymeric 6V 1.75 A 3.5 A 100 A 1 s 20 mOhms 85 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.063" (1.60mm) -
ASMD250F-2

ASMD250F-2

PTC RESET FUSE 16V 1.97A 2SMD

Littelfuse Inc.

1,435 -
RFQ
ASMD250F-2

Datasheet

2-SMD PolySwitch®, ASMD Tape & Reel (TR) Active Polymeric 16V 1.97 A 5 A 40 A 30 s 35 mOhms 85 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) -
72R090XPR

72R090XPR

PTC RESET FUSE 72V 900MA RADIAL

Littelfuse Inc.

2,860 -
RFQ
72R090XPR

Datasheet

Radial, Disc POLY-FUSE®, 72R Cut Tape (CT) Active Polymeric 72V 900 mA 1.8 A 40 A 7.2 s 200 mOhms 470 mOhms - -40°C ~ 85°C - - - Through Hole 0.441" Dia x 0.122" T (11.20mm x 3.10mm) 0.622" (15.80mm) - 0.201" (5.10mm)
RGEF600-2

RGEF600-2

PTC RESET FUSE 16V 6A RADIAL

Littelfuse Inc.

1,945 -
RFQ
RGEF600-2

Datasheet

Radial, Disc PolySwitch®, RGEF Tape & Reel (TR) Active Polymeric 16V 6 A 10.2 A 100 A 3.3 s 10 mOhms 28 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" L x 0.098" W (10.20mm x 2.50mm) 0.673" (17.10mm) - 0.199" (5.05mm)
60R065XPR

60R065XPR

PTC RESET FUSE 60V 650MA RADIAL

Littelfuse Inc.

3,897 -
RFQ
60R065XPR

Datasheet

Radial, Disc POLY-FUSE®, 60R Cut Tape (CT) Active Polymeric 60V 650 mA 1.3 A 40 A 5.3 s 310 mOhms 720 mOhms - -40°C ~ 85°C - - - Through Hole 0.370" Dia x 0.122" T (9.40mm x 3.10mm) 0.571" (14.50mm) - 0.201" (5.10mm)
MF-RX050/72-2

MF-RX050/72-2

PTC RESET FUSE 72V 500MA RADIAL

Bourns Inc.

3,785 -
RFQ
MF-RX050/72-2

Datasheet

Radial, Disc MF-RX/72 Tape & Reel (TR) Active - 72V 500 mA 1 A 40 A 4 s - - - - - - - Through Hole 0.311" Dia x 0.122" W (7.90mm x 3.10mm) - - 0.201" (5.10mm)
MF-RM012/240-0

MF-RM012/240-0

PTC RESET FUSE 240V 120MA RADIAL

Bourns Inc.

2,945 -
RFQ
MF-RM012/240-0

Datasheet

Radial, Disc Multifuse®, MF-RM Bulk Active Polymeric 240V (265V Int) 120 mA 300 mA 1.2 A 15 s 3 Ohms 12 Ohms - -20°C ~ 85°C - - - Through Hole 0.327" Dia x 0.150" T (8.30mm x 3.80mm) 0.508" (12.90mm) - 0.114" (2.90mm)
MF-RG700-0

MF-RG700-0

PTC RESET FUSE 16V 7A RADIAL

Bourns Inc.

2,580 -
RFQ
MF-RG700-0

Datasheet

Radial, Disc Multifuse®, MF-RG Bulk Active Polymeric 16V 7 A 11.9 A 100 A 8 s 8 mOhms 21 mOhms - -40°C ~ 85°C - - - Through Hole 0.441" L x 0.118" W (11.20mm x 3.00mm) 0.740" (18.80mm) - 0.201" (5.10mm)
MF-RX040/72-2

MF-RX040/72-2

PTC RESET FUSE 72V 400MA RADIAL

Bourns Inc.

2,247 -
RFQ
MF-RX040/72-2

Datasheet

Radial, Disc MF-RX/72 Tape & Reel (TR) Active - 72V 400 mA 800 mA 40 A 3.9 s - - - - - - - Through Hole 0.291" Dia x 0.122" W (7.40mm x 3.10mm) - - 0.201" (5.10mm)
MF-VS170-0

MF-VS170-0

PTC RESET FUSE 16V 1.7A STRAP

Bourns Inc.

1,982 -
RFQ
MF-VS170-0

Datasheet

Strap Multifuse®, MF-VS Bulk Active Polymeric 16V 1.7 A 3.4 A 100 A 3 s 30 mOhms 105 mOhms - -40°C ~ 85°C - - - User Defined 0.669" L x 0.205" W (17.00mm x 5.20mm) - 0.035" (0.90mm) -
LVR008NS-1

LVR008NS-1

PTC RESET FUSE 240V 80MA RADIAL

Littelfuse Inc.

1,500 -
RFQ
LVR008NS-1

Datasheet

Radial, Disc PolySwitch®, LVR Bag Active Polymeric 240V (265V Int) 80 mA 190 mA 1.2 A 10 s 7.4 Ohms 26 Ohms - -20°C ~ 85°C - - - Through Hole 0.283" Dia x 0.181" T (7.20mm x 4.60mm) 0.402" (10.20mm) - 0.200" (5.08mm)
MF-USML260/12-2

MF-USML260/12-2

PTC RESET FUSE 12V 2.6A 1210

Bourns Inc.

4,860 -
RFQ
MF-USML260/12-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML/X Tape & Reel (TR) Active Polymeric 12V 2.6 A 5.2 A 50 A 5 s 4 mOhms 30 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.031" (0.80mm) -
CMF-RL50-10-0

CMF-RL50-10-0

PTC RESET FUSE 220V 65MA RADIAL

Bourns Inc.

3,551 -
RFQ
CMF-RL50-10-0

Datasheet

Radial, Disc CMF-RL Bulk Active Ceramic 220V (600V Int) 65 mA 150 mA 3 A 150 ms - - 50 Ohms -40°C ~ 125°C - - - Through Hole 0.386" L x 0.197" W (9.80mm x 5.00mm) 0.532" (13.50mm) - 0.200" (5.08mm)
TRF250-183S

TRF250-183S

PTC RESET FUSE 100V 183MA RADIAL

Littelfuse Inc.

1,210 -
RFQ
TRF250-183S

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 0.295" Dia x 0.150" T (7.50mm x 3.80mm) 0.374" (9.50mm) - 0.197" (5.00mm)
0ZRN0070FF1E

0ZRN0070FF1E

PTC RESET FUSE 30V 700MA RADIAL

Bel Fuse Inc.

2,985 -
RFQ
0ZRN0070FF1E

Datasheet

Radial, Disc 0ZRN Bulk Active Polymeric 30V 700 mA 1.4 A 40 A 3.2 s 300 mOhms 800 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.272" L x 0.118" W (6.90mm x 3.00mm) 0.425" (10.80mm) - 0.201" (5.10mm)
MF-RG800-0

MF-RG800-0

PTC RESET FUSE 16V RADIAL DISC

Bourns Inc.

2,829 -
RFQ
MF-RG800-0

Datasheet

Radial, Disc Multifuse®, MF-RG Bulk Active Polymeric 16V - - 100 A - - - - -40°C ~ 85°C - - - Through Hole 0.500" L x 0.118" W (12.70mm x 3.00mm) 0.823" (20.90mm) - 0.201" (5.10mm)
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