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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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) |
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.
