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
PFRA.090.009

PFRA.090.009

PTC RESET FUSE 30V 900MA RADIAL

SCHURTER Inc.

4,180 -
RFQ
PFRA.090.009

Datasheet

Radial, Disc PFRA Bulk Active Polymeric 30V 900 mA 1.8 A 40 A 5.9 s 70 mOhms 220 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)
AHRF450

AHRF450

PTC RESET FUSE 16V 4.5A RADIAL

Littelfuse Inc.

2 -
RFQ
AHRF450

Datasheet

Radial, Disc PolySwitch®, AHRF Bag Active Polymeric 16V 4.5 A 8.7 A 100 A 4 s 17 mOhms 54 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.409" Dia x 0.122" T (10.40mm x 3.10mm) 0.563" (14.30mm) - 0.199" (5.05mm)
0ZRA0300FF2D

0ZRA0300FF2D

PTC RESET FUSE 16V 3A RADIAL

Bel Fuse Inc.

1 -
RFQ
0ZRA0300FF2D

Datasheet

Radial, Disc 0ZRA Tape & Reel (TR) Active Polymeric 16V 3 A 5.1 A 100 A 2 s 34 mOhms 105 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.280" L x 0.118" W (7.10mm x 3.00mm) 0.433" (11.00mm) - 0.201" (5.10mm)
0ZRB0185FF2E

0ZRB0185FF2E

PTC RESET FUSE 30V 1.85A RADIAL

Bel Fuse Inc.

33 -
RFQ
0ZRB0185FF2E

Datasheet

Radial, Disc 0ZRB Tape & Reel (TR) Active Polymeric 30V 1.85 A 3.7 A 40 A 8.7 s 30 mOhms 90 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.402" L x 0.118" W (10.20mm x 3.00mm) 0.618" (15.70mm) - 0.201" (5.10mm)
PTR030V0185-BK

PTR030V0185-BK

PTC RESET FUSE 30V 1.85A RADIAL

Eaton - Electronics Division

43 -
RFQ
PTR030V0185-BK

Datasheet

Radial, Disc PTR030V Bulk Active Polymeric 30V 1.85 A 3.7 A 40 A 8.7 s 30 mOhms 90 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" L x 0.118" W (10.20mm x 3.00mm) 0.618" (15.70mm) - 0.197" (5.00mm)
AHRF600

AHRF600

PTC RESET FUSE 16V 6A RADIAL

Littelfuse Inc.

2,768 -
RFQ
AHRF600

Datasheet

Radial, Disc PolySwitch®, AHRF Bag Active Polymeric 16V 6 A 12 A 100 A 6.5 s 10 mOhms 32 mOhms - -40°C ~ 125°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)
MF-SM260-2

MF-SM260-2

PTC RESET FUSE 6V 2.6A 2SMD

Bourns Inc.

7,302 -
RFQ
MF-SM260-2

Datasheet

2-SMD Multifuse®, MF-SM Tape & Reel (TR) Active Polymeric 6V 2.6 A 5.2 A 100 A 20 s 25 mOhms 75 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.287" L x 0.214" W (7.31mm x 5.44mm) - 0.118" (3.00mm) -
0ZRG0075FF2E

0ZRG0075FF2E

PTC RESET FUSE 30V 750MA RADIAL

Bel Fuse Inc.

79 -
RFQ
0ZRG0075FF2E

Datasheet

Radial, Disc 0ZRG Tape & Reel (TR) Active Polymeric 30V 750 mA 1.3 A 40 A 400 ms 80 mOhms 230 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.272" Dia x 0.118" T (6.90mm x 3.00mm) 0.449" (11.40mm) - 0.201" (5.10mm)
RXEF090-AP

RXEF090-AP

PTC RESET FUSE 72V 900MA RADIAL

Littelfuse Inc.

2,207 -
RFQ
RXEF090-AP

Datasheet

Radial, Disc PolySwitch®, RXEF 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 0.118" T (11.20mm x 3.00mm) 0.622" (15.80mm) - 0.199" (5.05mm)
LR4-600XF

LR4-600XF

PTC RESET FUSE 20V 6A STRAP

Littelfuse Inc.

3,129 -
RFQ
LR4-600XF

Datasheet

Strap PolySwitch®, LR4 Bulk Active Polymeric 20V 6 A 11.7 A 100 A 5 s 7 mOhms 19 mOhms - -40°C ~ 85°C - - - User Defined 1.638" L x 0.283" W (41.60mm x 7.20mm) - 0.039" (1.00mm) -
RGEF300K

RGEF300K

PTC RESET FUSE 16V 3A RADIAL

Littelfuse Inc.

16 -
RFQ
RGEF300K

Datasheet

Radial, Disc PolySwitch®, RGEF Bag Active Polymeric 16V 3 A 5.1 A 100 A 1 s 38 mOhms 97.5 mOhms - -40°C ~ 85°C - - - Through Hole 0.260" L x 0.098" W (6.60mm x 2.50mm) 0.535" (13.60mm) - 0.199" (5.05mm)
PFRA.160

PFRA.160

PTC RESET FUSE 30V 1.6A RADIAL

SCHURTER Inc.

7,026 -
RFQ
PFRA.160

Datasheet

Radial, Disc PFRA Bulk Active Polymeric 30V 1.6 A 3.2 A 40 A 8 s 55 mOhms 150 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" Dia x 0.118" T (10.20mm x 3.00mm) 0.661" (16.80mm) - 0.201" (5.10mm)
SMD250F/15-2920-2

SMD250F/15-2920-2

PTC RESET FUSE 15V 2.5A 2SMD

Littelfuse Inc.

7,742 -
RFQ
SMD250F/15-2920-2

Datasheet

2-SMD PolySwitch®, SMD Tape & Reel (TR) Active Polymeric 15V 2.5 A 5 A 40 A 10 s 35 mOhms 85 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.118" (3.00mm) -
72R135XF

72R135XF

PTC RESET FUSE 72V 1.35A RADIAL

Littelfuse Inc.

7,634 -
RFQ
72R135XF

Datasheet

Radial, Disc POLY-FUSE®, 72R Bulk Active Polymeric 72V 1.35 A 2.7 A 40 A 9.6 s 120 mOhms 300 mOhms - -40°C ~ 85°C - - - Through Hole 0.535" Dia x 0.122" T (13.58mm x 3.10mm) 0.780" (19.80mm) - 0.201" (5.10mm)
MF-VS210-0

MF-VS210-0

PTC RESET FUSE 16V 2.1A STRAP

Bourns Inc.

4,944 -
RFQ
MF-VS210-0

Datasheet

Strap Multifuse®, MF-VS Bulk Active Polymeric 16V 2.1 A 4.7 A 100 A 5 s 18 mOhms 60 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.205" W (22.00mm x 5.20mm) - 0.035" (0.90mm) -
MF-R017-2

MF-R017-2

PTC RESET FUSE 60V 170MA RADIAL

Bourns Inc.

7,818 -
RFQ
MF-R017-2

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Active Polymeric 60V 170 mA 340 mA 40 A 3 s 2 Ohms 8 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
RHEF400-2

RHEF400-2

PTC RESET FUSE 16V 4A RADIAL

Littelfuse Inc.

6,258 -
RFQ
RHEF400-2

Datasheet

Radial, Disc PolySwitch®, RHEF Tape & Reel (TR) Active Polymeric 16V 4 A 7.5 A 100 A 5 s 24 mOhms 60 mOhms - -40°C ~ 125°C - - - Through Hole 0.394" L x 0.118" W (10.00mm x 3.00mm) 0.591" (15.00mm) - 0.199" (5.05mm)
0ZRF0008FF2B

0ZRF0008FF2B

PTC RESET FUSE 60V 80MA RADIAL

Bel Fuse Inc.

5,835 -
RFQ
0ZRF0008FF2B

Datasheet

Radial, Disc 0ZRF Tape & Reel (TR) Active Polymeric 60V 80 mA 240 mA 3 A 4 s 14 Ohms 33 Ohms - -40°C ~ 85°C - - - Through Hole 0.288" L x 0.181" W (5.80mm x 4.60mm) 0.378" (9.60mm) - 0.197" (5.00mm)
B59950C0080A070

B59950C0080A070

PTC RESET FUSE 80V 170MA RADIAL

EPCOS - TDK Electronics

8,403 -
RFQ
B59950C0080A070

Datasheet

Radial, Disc B59950 Bulk Active Ceramic 80V 170 mA 350 mA 5.5 A - - - 3.7 Ohms -40°C ~ 125°C - - - Through Hole 0.532" Dia x 0.138" T (13.50mm x 3.50mm) 0.669" (17.00mm) - 0.197" (5.00mm)
RGEF600K

RGEF600K

PTC RESET FUSE 16V 6A RADIAL

Littelfuse Inc.

6,509 -
RFQ
RGEF600K

Datasheet

Radial, Disc PolySwitch®, RGEF Bag Active Polymeric 16V 6 A 10.2 A 100 A 3.3 s 10 mOhms 28 mOhms - -40°C ~ 85°C - - - Through Hole 0.421" L x 0.098" W (10.70mm x 2.50mm) 0.709" (18.00mm) - 0.199" (5.05mm)
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