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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MF-NSMF050/24X-2FUSE RESET PPTC 1206 0.50A/24V |
5,757 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse® freeXpansionTM, MF-NSMF | Tape & Reel (TR) | Active | Polymeric | 24V | 500 mA | 1 A | 100 A | 100 ms | 150 mOhms | 750 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.60mm) | - | 0.033" (0.85mm) | - |
|
MF-NSMF125/8X-2FUSE RESET PPTC 1206 1.25A/8V |
4,957 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse® freeXpansionTM, MF-NSMF | Tape & Reel (TR) | Active | Polymeric | 8V | 1.25 A | 2.5 A | 100 A | 200 ms | 40 mOhms | 150 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.126" L x 0.063" W (3.20mm x 1.60mm) | - | 0.043" (1.10mm) | - |
|
MF-LSMF075/60X-2FUSE RESETTABLE 2920 0.75A 60V |
3,803 | - |
|
Datasheet |
- | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
MF-NSML600/6-2PTC RESET FUSE 6V 6A 1206 |
3,090 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 6 A | 12 A | 50 A | 5 s | 2 mOhms | 9 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.039" (1.00mm) | - |
|
MF-NSML350/6-2PTC RESET FUSE 6V 3.5A 1206 |
2,809 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 3.5 A | 7 A | 50 A | 5 s | 2 mOhms | 22 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.055" (1.40mm) | - |
|
MF-LSMF150/33X-22920 RESETTABLE SMD PPTC 1.5A/33 |
2,254 | - |
|
Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 33V | 1.5 A | - | - | - | - | - | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | - | - |
|
MF-SMHT300-2PTC RESET FUSE 16V 3.0A 2SMD |
1,499 | - |
|
Datasheet |
2-SMD | Multifuse®, MF-S | Tape & Reel (TR) | Active | Polymeric | 16V | 3 A | 6 A | 100 A | 8 s | 24 mOhms | 83 mOhms | - | -40°C ~ 125°C | Automotive | AEC-Q200 | AEC-Q200 | Surface Mount | 0.344" L x 0.264" W (8.75mm x 6.71mm) | - | 0.118" (3.00mm) | - |
|
MF-LSMF110/60X-2FUSE RESETTABLE 2920 1.1A 60V |
3,957 | - |
|
Datasheet |
- | - | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
MF-USML400/6-2PTC RESET FUSE 6V 4A 1210 |
3,500 | - |
|
Datasheet |
1210 (3225 Metric), Concave | Multifuse®, MF-USML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 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) | - |
|
MF-NSML550/6-2PTC RESET FUSE 6V 5.5A 1206 |
3,235 | - |
|
Datasheet |
1206 (3216 Metric), Concave | Multifuse®, MF-NSML/X | Tape & Reel (TR) | Active | Polymeric | 6V | 5.5 A | 11 A | 50 A | 5 s | 2 mOhms | 10 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.039" (1.00mm) | - |
|
MF-LSMF260/16X-22920 RESETTABLE SMD PPTC 2.6A/16 |
3,000 | - |
|
Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 16V | 2.6 A | - | - | - | - | - | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | - | - |
|
TRF250-145US-B-0.5PTC RESET FUSE 60V 145MA RADIAL |
1,890 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 145 mA | 290 mA | 3 A | 4 s | 3.5 Ohms | 14 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) |
|
MF-LSMF125/33X-22920 RESETTABLE SMD PPTC 1.25A/3 |
4,457 | - |
|
Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 33V | 1.25 A | - | - | - | - | - | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | - | - |
|
|
TCF250-120T-B-0.5PTC RESET FUSE 60V 120MA SMD |
1,216 | - |
|
Datasheet |
Nonstandard SMD | PolySwitch®, TCF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 600 ms | 6.3 Ohms | 18 Ohms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.217" L x 0.217" W (5.50mm x 5.50mm) | - | 0.091" (2.30mm) | - |
|
MF-LSMF200/24X-22920 RESETTABLE SMD PPTC 2.0A/24 |
2,839 | - |
|
Datasheet |
2920 (7351 Metric), Concave | Multifuse®, MF-LSMF | Tape & Reel (TR) | Active | Polymeric | 24V | 2 A | - | - | - | - | - | - | -40°C ~ 85°C | Automotive | AEC-Q200 | - | Surface Mount | 0.290" L x 0.202" W (7.36mm x 5.12mm) | - | - | - |
|
0ZRV0012FF1ESENSOR PTC RADIAL |
3,000 | - |
|
Datasheet |
Radial, Disc | 0ZRV | Bulk | Active | Ceramic | 277V (305V Int) | 120 mA | 300 mA | 1.2 A | 18 s | 3 Ohms | 12 Ohms | - | -20°C ~ 85°C | - | - | AEC-Q200 | Through Hole | 0.319" L x 0.150" W (8.10mm x 3.80mm) | 0.504" (12.80mm) | - | 0.201" (5.10mm) |
|
0ZRV0016FF1ESENSOR PTC RADIAL |
3,000 | - |
|
Datasheet |
Radial, Disc | 0ZRV | Bulk | Active | Ceramic | 277V (305V Int) | 160 mA | 370 mA | 1.6 A | 18 s | 2.3 Ohms | 8 Ohms | - | -20°C ~ 85°C | - | - | AEC-Q200 | Through Hole | 0.291" L x 0.150" W (7.40mm x 3.80mm) | 0.559" (14.20mm) | - | 0.201" (5.10mm) |
|
TRF250-120T-RF-B-0.5PTC RESET FUSE 60V 120MA RADIAL |
6,560 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 900 ms | 6 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) |
|
MF-RX250/72-0-14FUSE PTC RESETTABLE |
2,933 | - |
|
Datasheet |
Radial, Disc | MF-RX/72 | Bulk | Active | - | 72V | 2.5 A | 5 A | 40 A | 15.6 s | - | - | - | - | - | - | - | Through Hole | 0.839" L x 0.122" W (21.30mm x 3.10mm) | 1.039" (26.40mm) | - | 0.402" (10.20mm) |
|
|
TRF250-120UTPTC RESET FUSE 60V 120MA RADIAL |
1,960 | - |
|
Datasheet |
Radial, Disc | PolySwitch®, TRF250 | Bag | Active | Polymeric | 60V (250V Int) | 120 mA | 240 mA | 3 A | 1.5 s | 7 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) |
