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
LVR025K-2

LVR025K-2

PTC RESET FUSE 240V 250MA RADIAL

Littelfuse Inc.

3,615 -
RFQ
LVR025K-2

Datasheet

Radial, Disc PolySwitch®, LVR Tape & Reel (TR) Active Polymeric 240V (265V Int) 250 mA 560 mA 3.5 A 18.5 s 1.3 Ohms 3.8 Ohms - -20°C ~ 85°C - - - Through Hole 0.378" L x 0.150" W (9.60mm x 3.80mm) 0.740" (18.80mm) - 0.200" (5.08mm)
0ZSA0200FF1E

0ZSA0200FF1E

PTC RESET FUSE 30V 2A STRAP

Bel Fuse Inc.

2,672 -
RFQ
0ZSA0200FF1E

Datasheet

Strap 0ZSA Bulk Active Polymeric 30V 2 A 4.4 A 100 A 4 s 30 mOhms 100 mOhms - -40°C ~ 85°C - - - User Defined 0.880" L x 0.417" W (22.35mm x 10.60mm) - 0.043" (1.10mm) -
MF-RHT100-2

MF-RHT100-2

PTC RESET FUSE 30V 1A RADIAL

Bourns Inc.

1,886 -
RFQ
MF-RHT100-2

Datasheet

Radial, Disc Multifuse®, MF-RHT 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" L x 0.118" W (9.70mm x 3.00mm) 0.535" (13.60mm) - 0.201" (5.10mm)
0ZRS0100FF1E

0ZRS0100FF1E

PTC RESET FUSE 32V 1A RADIAL

Bel Fuse Inc.

1,550 -
RFQ
0ZRS0100FF1E

Datasheet

Radial, Disc 0ZRS Bulk Active Ceramic 32V 1 A 1.9 A 100 A 6.2 s 150 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)
2920L030DR-A

2920L030DR-A

PTC RESET FUSE 60V 300MA 2920

Littelfuse Inc.

1,094 -
RFQ
2920L030DR-A

Datasheet

2920 (7351 Metric), Concave POLY-FUSE®, 2920L Tape & Reel (TR) Active Polymeric 60V 300 mA 600 mA 10 A 3 s 1.2 Ohms 4.8 Ohms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.049" (1.25mm) -
16R400GPR

16R400GPR

PTC RESET FUSE 16V 4A RADIAL

Littelfuse Inc.

6,406 -
RFQ
16R400GPR

Datasheet

Radial, Disc POLY-FUSE®, 16R Cut Tape (CT) Active Polymeric 16V 4 A 6.8 A 100 A 1.7 s 21 mOhms 60 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.504" (12.80mm) - 0.201" (5.10mm)
250R080ZR

250R080ZR

PTC RESET FUSE 60V 80MA RADIAL

Littelfuse Inc.

4,741 -
RFQ
250R080ZR

Datasheet

Radial, Disc POLY-FUSE®, 250R Cut Tape (CT) Active Polymeric 60V (250V Int) 80 mA 160 mA 3 A 4 s 14 Ohms 33 Ohms - -40°C ~ 85°C - - - Through Hole 0.228" Dia x 0.181" T (5.80mm x 4.60mm) 0.390" (9.90mm) - 0.201" (5.10mm)
MF-NSML150/6-2

MF-NSML150/6-2

PTC RESET FUSE 6V 1.5A 1206

Bourns Inc.

8,915 -
RFQ
MF-NSML150/6-2

Datasheet

1206 (3216 Metric), Concave Multifuse®, MF-NSML/X Tape & Reel (TR) Active Polymeric 6V 1.5 A 3 A 50 A 5 s 10 mOhms 65 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.028" (0.70mm) -
MICROSMDCH010F-02

MICROSMDCH010F-02

PTC RESET FUSE 30V 100MA 1210

Littelfuse Inc.

8,315 -
RFQ
MICROSMDCH010F-02

Datasheet

1210 (3225 Metric), Concave PolySwitch®, microSMD Tape & Reel (TR) Active Polymeric 30V 100 mA 350 mA 10 A 100 ms 1.2 Ohms 11 Ohms - -40°C ~ 125°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.038" (0.97mm) -
PTSLR12106V300

PTSLR12106V300

PTC RESET FUSE 6V 3A 1210

Eaton - Electronics Division

2,530 -
RFQ
PTSLR12106V300

Datasheet

1210 (3225 Metric), Concave PTSLR1210 Tape & Reel (TR) Active Polymeric 6V 3 A 6 A 50 A 2 s 3 mOhms 20 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.047" (1.20mm) -
B59990C0120A051

B59990C0120A051

PTC RESET FUSE 80V 50MA RADIAL

EPCOS - TDK Electronics

13,711 -
RFQ
B59990C0120A051

Datasheet

Radial, Disc B59990 Tape & Reel (TR) Active Ceramic 80V 50 mA 100 mA 700 mA - - - 55 Ohms -40°C ~ 125°C - - - Through Hole 0.157" Dia x 0.138" T (4.00mm x 3.50mm) 0.295" (7.50mm) - 0.197" (5.00mm)
LVR033K-2

LVR033K-2

PTC RESET FUSE 240V 330MA RADIAL

Littelfuse Inc.

4,213 -
RFQ
LVR033K-2

Datasheet

Radial, Disc PolySwitch®, LVR Tape & Reel (TR) Active Polymeric 240V (265V Int) 330 mA 740 mA 4.5 A 21 s 770 mOhms 2.6 Ohms - -20°C ~ 85°C - - - Through Hole 0.449" L x 0.150" W (11.40mm x 3.80mm) 0.748" (19.00mm) - 0.200" (5.08mm)
PTSLR08056V175

PTSLR08056V175

PTC RESET FUSE 6V 1.75A 0805

Eaton - Electronics Division

3,266 -
RFQ
PTSLR08056V175

Datasheet

0805 (2012 Metric), Concave PTSLR0805 Tape & Reel (TR) Active Polymeric 6V 1.75 A 3.5 A 50 A 600 ms 5 mOhms 55 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.035" (0.88mm) -
250R180MR

250R180MR

PTC RESET FUSE 60V 180MA RADIAL

Littelfuse Inc.

2,867 -
RFQ
250R180MR

Datasheet

Radial, Disc POLY-FUSE®, 250R Cut Tape (CT) Active Polymeric 60V (250V Int) 180 mA 650 mA 10 A 20 s 800 mOhms 4 Ohms - -40°C ~ 85°C - - - Through Hole 0.374" Dia x 0.181" T (9.50mm x 4.60mm) 0.472" (12.00mm) - 0.201" (5.10mm)
250S130VZR

250S130VZR

PTC RESET FUSE 60V 130MA 2SMD

Littelfuse Inc.

1,513 -
RFQ
250S130VZR

Datasheet

2-SMD POLY-FUSE®, 250S Tape & Reel (TR) Active Polymeric 60V (250V Int) 130 mA 260 mA 3 A 2 s 4 Ohms 20 Ohms - -40°C ~ 85°C - - - Surface Mount 0.240" L x 0.272" W (6.10mm x 6.90mm) - 0.126" (3.20mm) -
TRF250-120T-2

TRF250-120T-2

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

1,489 -
RFQ
TRF250-120T-2

Datasheet

Radial, Disc PolySwitch®, TRF250 Tape & Reel (TR) Active Polymeric 60V (250V Int) 120 mA 240 mA 3 A 1.2 s 7 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.197" (5.00mm)
FEMTOASMDC008F-2

FEMTOASMDC008F-2

PTC RESET FUSE 12V 80MA 0603

Littelfuse Inc.

39,281 -
RFQ
FEMTOASMDC008F-2

Datasheet

0603 (1608 Metric) PolySwitch®, femtoASMD Tape & Reel (TR) Active Polymeric 12V 80 mA 200 mA 10 A 100 ms 2.8 Ohms 14 Ohms - - Automotive AEC-Q200 - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.033" (0.85mm) -
ASMDC075F-2

ASMDC075F-2

PTC RESET FUSE 33V 750MA 2SMD

Littelfuse Inc.

9,148 -
RFQ
ASMDC075F-2

Datasheet

2-SMD PolySwitch®, ASMD Tape & Reel (TR) Active Polymeric 33V 750 mA 1.5 A 40 A 1 s 100 mOhms 610 mOhms - - Automotive AEC-Q200 - Surface Mount 0.295" L x 0.201" W (7.50mm x 5.10mm) - 0.035" (0.90mm) -
MF-RHT100-0

MF-RHT100-0

PTC RESET FUSE 30V 1A RADIAL

Bourns Inc.

2,232 -
RFQ
MF-RHT100-0

Datasheet

Radial, Disc Multifuse®, MF-RHT Bag 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" L x 0.118" W (9.70mm x 3.00mm) 0.535" (13.60mm) - 0.201" (5.10mm)
RHEF750-2

RHEF750-2

PTC RESET FUSE 16V 7.5A RADIAL

Littelfuse Inc.

5,539 -
RFQ
RHEF750-2

Datasheet

Radial, Disc PolySwitch®, RHEF Tape & Reel (TR) Active Polymeric 16V 7.5 A 13.1 A 100 A 7 s 9.4 mOhms 22 mOhms - -40°C ~ 125°C - - - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.925" (23.50mm) - 0.199" (5.05mm)
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