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0755-82798135PTC Resettable Fuses
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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MF-R040-2PTC RESET FUSE 60V 400MA RADIAL |
2,391 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Active | Polymeric | 60V | 400 mA | 800 mA | 40 A | 3.8 s | 520 mOhms | 1.29 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.291" Dia x 0.122" T (7.40mm x 3.10mm) | 0.539" (13.70mm) | - | 0.201" (5.10mm) |
|
RHEF450-2PTC RESET FUSE 16V 4.5A RADIAL |
2,002 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, RHEF | Tape & Reel (TR) | Active | Polymeric | 16V | 4.5 A | 7.8 A | 100 A | 3 s | 22 mOhms | 54 mOhms | - | -40°C ~ 125°C | - | - | - | Through Hole | 0.409" L x 0.118" W (10.40mm x 3.00mm) | 0.614" (15.60mm) | - | 0.199" (5.05mm) |
|
LVR012S-2PTC RESET FUSE 240V 120MA RADIAL |
4,313 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Tape & Reel (TR) | 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) | 0.430" (10.70mm) | - | 0.200" (5.08mm) |
|
0ZSC0190FF1EPTC RESET FUSE 20V 1.9A STRAP |
2,844 | - |
|
Datasheet |
Strap | 0ZSC | Bulk | Active | Polymeric | 20V | 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) | - |
|
|
16R400GUPTC RESET FUSE 16V 4A RADIAL |
2,745 | - |
|
Datasheet |
Radial, Disc | POLY-FUSE®, 16R | Bulk | 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) |
|
MF-RM012/240-2PTC RESET FUSE 240V 120MA RADIAL |
2,577 | - |
|
Datasheet |
Radial, Disc | Multifuse®, MF-RM | Tape & Reel (TR) | 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) |
|
2016L200PRPTC RESET FUSE 6V 2A 2016 |
4,729 | - |
|
Datasheet |
2016 (5041 Metric), Concave | POLY-FUSE®, 2016L | Tape & Reel (TR) | Active | Polymeric | 6V | 2 A | 4.2 A | 40 A | 3 s | 48 mOhms | 100 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.200" L x 0.160" W (5.08mm x 4.07mm) | - | 0.030" (0.75mm) | - |
|
MF-USML450/12-2PTC RESET FUSE 12V 4.5A 1210 |
3,289 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 4.5 A | 9 A | 50 A | 2 s | 2 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
MF-USML550/12-2PTC RESET FUSE 12V 5.5A 1210 |
3,142 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 5.5 A | 11 A | 50 A | 2 s | 1 mOhms | 10 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
MF-USML400/12-2PTC RESET FUSE 12V 4A 1210 |
3,130 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 4 A | 8 A | 50 A | 5 s | 2 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
TRF250-120U-2PTC RESET FUSE 60V 120MA RADIAL |
3,125 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Tape & Reel (TR) | 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) |
|
AHS300F/24-2PPTC-SMD-PSW |
2,748 | - |
|
Datasheet |
2-SMD | PolySwitch® AHS | Tape & Reel (TR) | Active | Polymeric | 24V | 3 A | 6 A | 20 A | 8 s | 15 mOhms | 100 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | - | Surface Mount | 0.343" L x 0.250" W (8.70mm x 6.36mm) | 0.118" (3.00mm) | - | - |
|
MF-USML380/12-2PTC RESET FUSE 12V 3.8A 1210 |
1,876 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 3.8 A | 7.6 A | 50 A | 5 s | 2 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) | - |
|
MF-USML200/12-2PTC RESET FUSE 12V 2A 1210 |
1,788 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 12V | 2 A | 4 A | 50 A | 5 s | 5 mOhms | 40 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.101" W (3.22mm x 2.58mm) | - | 0.031" (0.80mm) | - |
|
|
0ZRF0018FF1APTC RESET FUSE 60V 180MA RADIAL |
1,295 | - |
|
Datasheet |
Radial, Disc | 0ZRF | Box | Active | Polymeric | 60V | 180 mA | 580 mA | 3 A | 11 s | 800 mOhms | 4 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.429" L x 0.181" W (10.90mm x 4.60mm) | 0.496" (12.60mm) | - | 0.197" (5.00mm) |
|
B59890C0160A070PTC RESET FUSE 160V 35MA RADIAL |
6,050 | - |
|
Datasheet |
Radial, Disc | - | Bulk | Active | Ceramic | 160V | 35 mA | 70 mA | 200 mA | - | - | - | 150 Ohms | 0°C ~ 60°C | - | - | - | Through Hole | 0.157" Dia x 0.197" T (4.00mm x 5.00mm) | 0.295" (7.50mm) | - | 0.197" (5.00mm) |
|
0ZRE0040FF2BPTC RESET FUSE 240V 400MA RADIAL |
2,988 | - |
|
Datasheet |
Radial, Disc | 0ZRE | Tape & Reel (TR) | Active | Polymeric | 240V | 400 mA | 900 mA | 7 A | 24 s | 600 mOhms | 1.9 Ohms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Through Hole | 0.453" L x 0.150" W (11.50mm x 3.80mm) | 0.768" (19.50mm) | - | 0.201" (5.10mm) |
|
|
ASMD100F-2PTC RESET FUSE 30V 900MA 2SMD |
11,480 | - |
|
Datasheet |
2-SMD | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 30V | 900 mA | 2.16 A | 40 A | 20 s | 98 mOhms | 480 mOhms | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.287" L x 0.201" W (7.30mm x 5.10mm) | - | 0.118" (3.00mm) | - |
|
ASMDC030F-2PTC RESET FUSE 60V 300MA 2SMD |
7,618 | - |
|
Datasheet |
2-SMD | PolySwitch®, ASMD | Tape & Reel (TR) | Active | Polymeric | 60V | 300 mA | 600 mA | 10 A | 3 s | 300 mOhms | 3.4 Ohms | - | - | Automotive | AEC-Q200 | - | Surface Mount | 0.295" L x 0.201" W (7.50mm x 5.10mm) | - | 0.035" (0.90mm) | - |
|
LVR016K-2PTC RESET FUSE 240V 160MA RADIAL |
27,676 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, LVR | Tape & Reel (TR) | Active | Polymeric | 240V (265V Int) | 160 mA | 370 mA | 2 A | 15 s | 2.5 Ohms | 7.8 Ohms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.390" Dia x 0.150" T (9.90mm x 3.80mm) | 0.543" (13.80mm) | - | 0.200" (5.08mm) |
