PTC Resettable Fuses
Browse available PTC Resettable Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
LVR075S-1PTC RESET FUSE 240V 750MA RADIAL |
9,034 | - |
|
Datasheet | Radial, Disc | PolySwitch®, LVR | Bulk | Obsolete | Polymeric | 240V (265V Int) | 750 mA | 1.5 A | 7.5 A | 18 s | 316 mOhms | 839 mOhms | - | -20°C ~ 85°C | - | - | - | Through Hole | 0.450" L x 0.189" W (11.43mm x 4.80mm) | 0.921" (23.40mm) | - | 0.200" (5.08mm) |
|
TRF250-055TPTC RESET FUSE 60V 55MA RADIAL |
9,520 | - |
|
Datasheet | Radial, Disc | PolySwitch®, TRF250 | Bulk | Active | Polymeric | 60V (250V Int) | 55 mA | 170 mA | 3 A | 3.5 s | 15 Ohms | 35 Ohms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.228" Dia x 0.181" T (5.80mm x 4.60mm) | 0.390" (9.90mm) | - | 0.197" (5.00mm) |
|
MXP180PTC RESET FUSE 6V 1.8A STRAP |
2,496 | - |
|
Datasheet | Strap | PolySwitch®, MXP | Bulk | Obsolete | Polymeric | 6V | 1.8 A | 5.2 A | 50 A | 5 s | 7 mOhms | 24 mOhms | - | - | - | - | - | User Defined | - | 0.043" (1.10mm) | - | - |
|
MXP270PTC RESET FUSE 6V 2.7A STRAP |
5,923 | - |
|
Datasheet | Strap | PolySwitch®, MXP | Bulk | Obsolete | Polymeric | 6V | 2.7 A | 6.2 A | 50 A | 2 s | 6 mOhms | 26 mOhms | - | - | - | - | - | User Defined | - | 0.043" (1.10mm) | - | - |
|
MGP500PTC RESET FUSE 6V 5A STRAP |
4,129 | - |
|
Datasheet | Strap | PolySwitch®, MGP | Bulk | Obsolete | Polymeric | 6V | 5 A | 9.2 A | 50 A | 5 s | 2.5 mOhms | 13 mOhms | - | - | - | - | - | User Defined | 0.591" L x 0.122" W (15.00mm x 3.11mm) | 0.037" (0.95mm) | - | - |
|
FEMTOSMDC035F-2PTC RESET FUSE 6V 350MA 0603 |
8,874 | - |
|
Datasheet | 0603 (1608 Metric), Concave | PolySwitch®, femtoSMDC | Tape & Reel (TR) | Discontinued at Digi-Key | Polymeric | 6V | 350 mA | 700 mA | 40 A | 100 ms | 280 mOhms | 1 Ohms | - | - | - | - | - | Surface Mount | 0.063" L x 0.032" W (1.60mm x 0.80mm) | - | 0.037" (0.95mm) | - |
|
MF-NSML380-2PTC RESET FUSE 6V 3.8A 1206 |
5,983 | - |
|
Datasheet | 1206 (3216 Metric), Concave | Multifuse®, MF-NSML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.8 A | 8 A | 50 A | 5 s | 1.5 mOhms | 14 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.128" L x 0.063" W (3.25mm x 1.60mm) | - | 0.024" (0.60mm) | - |
|
MF-USML450-2PTC RESET FUSE 6V 4.5A 1210 |
9,295 | - |
|
Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 4.5 A | 9 A | 50 A | 2 s | 1 mOhms | 15 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
MF-USML500-2PTC RESET FUSE 6V 5A 1210 |
2,528 | - |
|
Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 5 A | 10 A | 50 A | 2 s | 1 mOhms | 14.5 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.047" (1.20mm) | - |
|
MF-USML200-2PTC RESET FUSE 6V 2A 1210 |
6,755 | - |
|
Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2 A | 4 A | 50 A | 3 s | 5 mOhms | 30 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-USML250-2PTC RESET FUSE 6V 2.5A 1210 |
8,190 | - |
|
Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 2.5 A | 5 A | 50 A | 3.5 s | 4.5 mOhms | 22 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
MF-USML350-2PTC RESET FUSE 6V 3.5A 1210 |
2,685 | - |
|
Datasheet | 1210 (3225 Metric), Concave | Multifuse®, MF-USML | Tape & Reel (TR) | Obsolete | Polymeric | 6V | 3.5 A | 7 A | 50 A | 2 s | 3 mOhms | 18 mOhms | - | -40°C ~ 85°C | - | - | - | Surface Mount | 0.127" L x 0.102" W (3.22mm x 2.58mm) | - | 0.024" (0.60mm) | - |
|
B59673A0100B110PTC RESET FUSE |
2,855 | - |
|
Datasheet | - | - | Bulk | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
PTGL04BD102N9N54B0PTC RESET FUSE RADIAL DISC |
4,224 | - |
|
Datasheet | Radial, Disc | POSISTOR®, PTGL | Bulk | Obsolete | Ceramic | - | - | - | - | - | - | - | 1 kOhms | -10°C ~ 60°C | - | - | - | Through Hole | - | - | - | - |
|
MF-R010-0-A0PTC RESET FUSE 60V 100MA RADIAL |
2,552 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 60V | 100 mA | 200 mA | 40 A | 4 s | 2.5 Ohms | 7.5 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) |
|
MF-R400-0-15PTC RESET FUSE 30V 4A RADIAL |
6,088 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Active | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.976" (24.80mm) | - | 0.201" (5.10mm) |
|
MF-R075-2-14-99PTC RESET FUSE 60V 750MA RADIAL |
4,785 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | Polymeric | 60V | 750 mA | 1.5 A | 40 A | 6.3 s | 180 mOhms | 600 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.409" Dia x 0.122" T (10.40mm x 3.10mm) | 0.630" (16.00mm) | - | 0.201" (5.10mm) |
|
MF-R300-2-14-99PTC RESET FUSE 30V 3A RADIAL |
3,661 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | Polymeric | 30V | 3 A | 6 A | 40 A | 10.8 s | 20 mOhms | 80 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.472" L x 0.118" W (12.00mm x 3.00mm) | 0.720" (18.30mm) | - | 0.201" (5.10mm) |
|
MF-R400-2-14-99PTC RESET FUSE 30V 4A RADIAL |
9,952 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Tape & Reel (TR) | Obsolete | Polymeric | 30V | 4 A | 8 A | 40 A | 12.7 s | 10 mOhms | 50 mOhms | - | -40°C ~ 85°C | - | - | - | Through Hole | 0.567" L x 0.118" W (14.40mm x 3.00mm) | 0.976" (24.80mm) | - | 0.201" (5.10mm) |
|
MF-R010-0-A0-99PTC RESET FUSE 60V 100MA RADIAL |
4,777 | - |
|
Datasheet | Radial, Disc | Multifuse®, MF-R | Bulk | Obsolete | Polymeric | 60V | 100 mA | 200 mA | 40 A | 4 s | 2.5 Ohms | 7.5 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) |
PTC Resettable Fuses FAQ
Common questions about selecting, comparing and sourcing PTC Resettable Fuses components through Winsun (HK) Electronics.
What should I check when selecting PTC Resettable Fuses components?
Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
Can Winsun help source specific PTC Resettable Fuses part numbers?
Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.
Do you support shortage, obsolete or hard-to-find PTC Resettable Fuses parts?
Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
How do I request a quote for PTC Resettable Fuses components?
Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.