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
MF-RX090/72-0

MF-RX090/72-0

PTC RESET FUSE 72V 900MA RADIAL

Bourns Inc.

5,053 -
RFQ
MF-RX090/72-0

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Bulk Active Polymeric 72V 900 mA 1.8 A 40 A 7.2 s 140 mOhms 470 mOhms - -40°C ~ 85°C - - - Through Hole 0.461" Dia x 0.122" T (11.70mm x 3.10mm) 0.657" (16.70mm) - 0.201" (5.10mm)
TRF250-110UT

TRF250-110UT

PTC RESET FUSE 60V 110MA RADIAL

Littelfuse Inc.

3,431 -
RFQ
TRF250-110UT

Datasheet

Radial, Disc PolySwitch®, TRF250 Bag Obsolete Polymeric 60V (250V Int) 110 mA 220 mA 3 A 1.2 s 5 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.209" Dia x 0.150" T (5.30mm x 3.80mm) 0.370" (9.40mm) - 0.197" (5.00mm)
24LT100U

24LT100U

PTC RESET FUSE 24V 1A STRAP

Littelfuse Inc.

7,995 -
RFQ

-

Strap POLY-FUSE®, LT Bulk Obsolete Polymeric 24V 1 A 2.5 A 100 A 7 s 70 mOhms 260 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.199" W (22.00mm x 5.05mm) - 0.039" (1.00mm) -
MF-R025-AP-17

MF-R025-AP-17

PTC RESETTABLE 0.25A 60V RADIAL

Bourns Inc.

3,683 -
RFQ
MF-R025-AP-17

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Box (TB) Active Polymeric 60V 250 mA 500 mA 40 A 2.5 s 1 Ohms 3 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
0ZRF0011FF1E

0ZRF0011FF1E

PTC RESET FUSE 60V 110MA RADIAL

Bel Fuse Inc.

8,429 -
RFQ
0ZRF0011FF1E

Datasheet

Radial, Disc 0ZRF Box Active Polymeric 60V 110 mA 400 mA 3 A 2 s 5 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.268" L x 0.181" W (6.80mm x 4.60mm) 0.390" (9.90mm) - 0.197" (5.00mm)
0ZRF0012FF1E

0ZRF0012FF1E

PTC RESET FUSE 60V 120MA RADIAL

Bel Fuse Inc.

5,098 -
RFQ
0ZRF0012FF1E

Datasheet

Radial, Disc 0ZRF Box Active Polymeric 60V 120 mA 480 mA 3 A 2 s 4 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.197" (5.00mm)
0ZRF0015FF1E

0ZRF0015FF1E

PTC RESET FUSE 60V 150MA RADIAL

Bel Fuse Inc.

6,203 -
RFQ
0ZRF0015FF1E

Datasheet

Radial, Disc 0ZRF Box Active Polymeric 60V 150 mA 580 mA 3 A 2.5 s 3 Ohms 12 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.197" (5.00mm)
PTR016V0185-TR

PTR016V0185-TR

PTC RESET FUSE 16V 1.85A RADIAL

Eaton - Electronics Division

5,721 -
RFQ
PTR016V0185-TR

Datasheet

Radial, Disc PTR016V Tape & Reel (TR) Active Polymeric 16V 1.85 A 3.7 A 40 A 10 s 30 mOhms 90 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" L x 0.122" W (10.20mm x 3.10mm) 0.618" (15.70mm) - 0.197" (5.00mm)
PTR030V0110-TR

PTR030V0110-TR

PTC RESET FUSE 30V 1.1A RADIAL

Eaton - Electronics Division

7,998 -
RFQ
PTR030V0110-TR

Datasheet

Radial, Disc PTR030V Tape & Reel (TR) Active Polymeric 30V 1.1 A 2.2 A 40 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) - 0.197" (5.00mm)
0ZRA0900FF1A

0ZRA0900FF1A

PTC RESET FUSE 16V 9A RADIAL

Bel Fuse Inc.

4,827 -
RFQ
0ZRA0900FF1A

Datasheet

Radial, Disc 0ZRA Box Active Polymeric 16V 9 A 15.3 A 100 A 12 s 4 mOhms 15 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.854" (21.70mm) - 0.201" (5.10mm)
PTGL07BD330N3B51A0

PTGL07BD330N3B51A0

PTC RESET FUSE 32V 60MA RADIAL

Murata Electronics

6,141 -
RFQ
PTGL07BD330N3B51A0

Datasheet

Radial, Disc POSISTOR®, PTGL Bulk Obsolete Ceramic 32V 60 mA 135 mA 1.5 A - - - 33 Ohms -10°C ~ 60°C - - - Through Hole 0.291" Dia x 0.157" T (7.40mm x 4.00mm) 0.528" (13.40mm) - 0.197" (5.00mm)
SRP420

SRP420

PTC RESET FUSE 30V 4.2A STRAP

Littelfuse Inc.

6,225 -
RFQ
SRP420

Datasheet

Strap PolySwitch®, SRP Bulk Obsolete Polymeric 30V 4.2 A 7.6 A 100 A 6 s 12 mOhms 40 mOhms - -40°C ~ 85°C - - - User Defined 1.240" L x 0.522" W (31.50mm x 13.25mm) - 0.043" (1.10mm) -
PFMF.160.2

PFMF.160.2

PTC RESET FUSE 8V 1.6A 1812

SCHURTER Inc.

2,701 -
RFQ
PFMF.160.2

Datasheet

1812 (4532 Metric), Concave PFMF Tape & Reel (TR) Active Polymeric 8V 1.6 A 2.8 A 100 A 2 s 35 mOhms 99 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.033" (0.85mm) -
15LR190U

15LR190U

PTC RESET FUSE 15V 1.9A STRAP

Littelfuse Inc.

8,831 -
RFQ

-

Strap POLY-FUSE®, LR Bulk Obsolete Polymeric 15V 1.9 A 3.9 A 100 A 5 s 39 mOhms 102 mOhms - -40°C ~ 85°C - - - User Defined 0.827" L x 0.205" W (21.00mm x 5.20mm) - 0.039" (1.00mm) -
MF-RX040/72-AP

MF-RX040/72-AP

PTC RESET FUSE 72V 400MA RADIAL

Bourns Inc.

2,054 -
RFQ
MF-RX040/72-AP

Datasheet

Radial, Disc MF-RX/72 Tape & Box (TB) 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-RX065/72-AP

MF-RX065/72-AP

PTC RESET FUSE 72V 650MA RADIAL

Bourns Inc.

5,777 -
RFQ
MF-RX065/72-AP

Datasheet

Radial, Disc MF-RX/72 Tape & Box (TB) Active - 72V 650 mA 1.3 A 40 A 5.3 s - - - - - - - Through Hole 0.382" Dia x 0.122" W (9.70mm x 3.10mm) 0.598" (15.20mm) - 0.201" (5.10mm)
MF-RX075/72-AP

MF-RX075/72-AP

PTC RESET FUSE 72V 750MA RADIAL

Bourns Inc.

4,725 -
RFQ
MF-RX075/72-AP

Datasheet

Radial, Disc MF-RX/72 Tape & Box (TB) Active - 72V 750 mA 1.5 A 40 A 6.3 s - - - - - - - Through Hole 0.409" Dia x 0.122" W (10.40mm x 3.10mm) 0.630" (16.00mm) - 0.201" (5.10mm)
MF-RX090/72-AP

MF-RX090/72-AP

PTC RESET FUSE 72V 900MA RADIAL

Bourns Inc.

4,292 -
RFQ
MF-RX090/72-AP

Datasheet

Radial, Disc MF-RX/72 Tape & Box (TB) Active - 72V 900 mA 1.8 A 40 A 7.2 s - - - - - - - Through Hole 0.461" Dia x 0.122" W (11.70mm x 3.10mm) 0.657" (16.70mm) - 0.201" (5.10mm)
MF-RX110/72-AP

MF-RX110/72-AP

PTC RESET FUSE 72V 1.1A RADIAL

Bourns Inc.

5,284 -
RFQ
MF-RX110/72-AP

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) 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) 0.662" (16.84mm) - 0.201" (5.10mm)
MF-RX135/72-AP

MF-RX135/72-AP

PTC RESET FUSE 72V 1.35A RADIAL

Bourns Inc.

3,548 -
RFQ
MF-RX135/72-AP

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 1.35 A 2.7 A 40 A 9.6 s 120 mOhms 300 mOhms - -40°C ~ 85°C - - - Through Hole 0.483" L x 0.122" W (12.26mm x 3.10mm) 0.718" (18.26mm) - 0.201" (5.10mm)
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