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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.

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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
0805L150SLYR Littelfuse Inc.

0805L150SLYR

PTC RESET FUSE 6V 1.5A 0805

Littelfuse Inc.

4,115 -
Datasheet 0805 (2012 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 1.5 A 3 A 50 A 500 ms 15 mOhms 65 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.030" (0.75mm) -
0603L150SLYR Littelfuse Inc.

0603L150SLYR

PTC RESET FUSE 6V 1.5A 0603

Littelfuse Inc.

2,283 -
Datasheet 0603 (1608 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 1.5 A 3 A 50 A 500 ms 7 mOhms 80 mOhms - -40°C ~ 85°C - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.039" (1.00mm) -
1812L020/60DR Littelfuse Inc.

1812L020/60DR

PTC RESET FUSE 60V 200MA 1812

Littelfuse Inc.

9,304 -
Datasheet 1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Active Polymeric 60V 200 mA 400 mA 40 A 2 s 1.4 Ohms 4.4 Ohms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
1812L200/12DR Littelfuse Inc.

1812L200/12DR

PTC RESET FUSE 12V 2A 1812

Littelfuse Inc.

2,100 -
Datasheet 1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Active Polymeric 12V 2 A 3.5 A 100 A 2 s 20 mOhms 70 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.047" (1.20mm) -
2920L330/24MR Littelfuse Inc.

2920L330/24MR

PTC RESET FUSE 24V 3.3A 2920

Littelfuse Inc.

10,514 -
Datasheet 2920 (7351 Metric), Concave POLY-FUSE®, 2920L Tape & Reel (TR) Active Polymeric 24V 3.3 A 5.5 A 40 A 5 s 15 mOhms 55 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.079" (2.00mm) -
0603L050SLYR Littelfuse Inc.

0603L050SLYR

PTC RESET FUSE 6V 500MA 0603

Littelfuse Inc.

15,351 -
Datasheet 0603 (1608 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 500 mA 1 A 50 A 100 ms 70 mOhms 350 mOhms - -40°C ~ 85°C - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.030" (0.75mm) -
0603L075SLYR Littelfuse Inc.

0603L075SLYR

PTC RESET FUSE 6V 750MA 0603

Littelfuse Inc.

13,493 -
Datasheet 0603 (1608 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 750 mA 1.5 A 50 A 200 ms 20 mOhms 165 mOhms - -40°C ~ 85°C - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.030" (0.75mm) -
0603L175SLYR Littelfuse Inc.

0603L175SLYR

PTC RESET FUSE 6V 1.75A 0603

Littelfuse Inc.

6,392 -
Datasheet 0603 (1608 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 1.75 A 3.5 A 50 A 600 ms 5 mOhms 60 mOhms - -40°C ~ 85°C - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.039" (1.00mm) -
1206L175SLYR Littelfuse Inc.

1206L175SLYR

PTC RESET FUSE 6V 1.75A 1206

Littelfuse Inc.

6,371 -
Datasheet 1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 1.75 A 3.5 A 50 A 400 ms 5 mOhms 30 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.065" W (3.25mm x 1.65mm) - 0.071" (1.80mm) -
1206L350SLTHYR Littelfuse Inc.

1206L350SLTHYR

PTC RESET FUSE 6V 3.5A 1206

Littelfuse Inc.

5,592 -
Datasheet 1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 3.5 A 7 A 50 A 5 s 3 mOhms 18 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.065" W (3.25mm x 1.65mm) - 0.030" (0.75mm) -
1812L035/30DR Littelfuse Inc.

1812L035/30DR

PTC RESET FUSE 30V 350MA 1812

Littelfuse Inc.

6,342 -
Datasheet 1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Active Polymeric 30V 350 mA 750 mA 40 A 150 ms 400 mOhms 1.7 Ohms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
0402L020SLKR Littelfuse Inc.

0402L020SLKR

PTC RESET FUSE 6V 200MA 0402

Littelfuse Inc.

48,447 -
Datasheet 0402 (1005 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 200 mA 500 mA 40 A 1 s 100 mOhms 1.25 Ohms - -40°C ~ 85°C - - - Surface Mount 0.039" L x 0.020" W (1.00mm x 0.50mm) - 0.024" (0.60mm) -
0402L050SLKR Littelfuse Inc.

0402L050SLKR

PTC RESET FUSE 6V 500MA 0402

Littelfuse Inc.

27,876 -
Datasheet 0402 (1005 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 500 mA 1 A 50 A 100 ms 40 mOhms 400 mOhms - -40°C ~ 85°C - - - Surface Mount 0.039" L x 0.020" W (1.00mm x 0.50mm) - 0.024" (0.60mm) -
0805L010/24YR Littelfuse Inc.

0805L010/24YR

PTC RESET FUSE 24V 100MA 0805

Littelfuse Inc.

13,390 -
Datasheet 0805 (2012 Metric), Concave POLY-FUSE®, 0805L Tape & Reel (TR) Active Polymeric 24V 100 mA 300 mA 100 A 1.5 s 1.5 Ohms 6 Ohms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.039" (1.00mm) -
1206L600SLWR Littelfuse Inc.

1206L600SLWR

PTC RESET FUSE 6.0A 6V 1206

Littelfuse Inc.

8,625 -
Datasheet 1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 6 A 12 A 50 A 2 s 1 mOhms 10 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.055" (1.40mm) -
1206L260/12SLYR Littelfuse Inc.

1206L260/12SLYR

PTC RESET FUSE 2.6A 12V 1206

Littelfuse Inc.

4,240 -
Datasheet 1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 12V 2.6 A 5 A 50 A 4 s 3 mOhms 55 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.030" (0.75mm) -
1206L400SLWR Littelfuse Inc.

1206L400SLWR

PTC RESET FUSE 6V 4A 1206

Littelfuse Inc.

3,599 -
Datasheet 1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 4 A 8 A 50 A 2 s 1 mOhms 14 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.065" W (3.25mm x 1.65mm) - 0.055" (1.40mm) -
1206L400/12SLWR Littelfuse Inc.

1206L400/12SLWR

PTC RESET FUSE 4.0A 12V 1206

Littelfuse Inc.

2,368 -
Datasheet 1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 12V 4 A 8 A 50 A 2 s 3 mOhms 16 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.055" (1.40mm) -
LR4-1300SSF Littelfuse Inc.

LR4-1300SSF

PTC RESET FUSE 20V 13A STRAP

Littelfuse Inc.

32,365 -
Datasheet Strap PolySwitch®, LR4 Bag Active Polymeric 20V 13 A 21.2 A 100 A 10 s 3.5 mOhms 9 mOhms - -40°C ~ 85°C - - - User Defined 2.520" L x 0.382" W (64.00mm x 9.70mm) - - -
1812L300/24SLER Littelfuse Inc.

1812L300/24SLER

PTC RESET FUSE 3.0A 24V 1812

Littelfuse Inc.

5,413 -
Datasheet 1812 (4532 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 24V 3 A 6 A 50 A 2 s 1 mOhms 30 mOhms - -40°C ~ 85°C - - - Surface Mount 0.181" L x 0.128" W (4.60mm x 3.24mm) - 0.032" (0.82mm) -
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FREQUENTLY ASKED QUESTIONS

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.