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PTC Resettable Fuses

Review PTC Resettable Fuses Circuit Protection components in this filtered selection. Compare manufacturer information, availability, pricing, datasheets and key specifications to narrow down suitable parts for your application.

If the exact part or specification you need is not listed, send the manufacturer part number, target parameters and quantity to JIEXIN Electronics for sourcing 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
TRF600-160 Littelfuse Inc.

TRF600-160

PTC RESET FUSE 250V 160MA RADIAL

Littelfuse Inc.

765
Datasheet Radial, Disc PolySwitch®, TRF600 Bulk Active Polymeric 250V (600V Int) 160 mA 320 mA 60 A 18 s 4 Ohms 18 Ohms - -40°C ~ 85°C - - - Through Hole 0.630" L x 0.236" W (16.00mm x 6.00mm) 0.496" (12.60mm) - 0.197" (5.00mm)
LR4-600F Littelfuse Inc.

LR4-600F

PTC RESET FUSE 20V 6A STRAP

Littelfuse Inc.

9,666
Datasheet Strap PolySwitch®, LR4 Bag Active Polymeric 20V 6 A 11.7 A 100 A 5 s 7 mOhms 19 mOhms - -40°C ~ 85°C - - - User Defined 0.984" L x 0.559" W (25.00mm x 14.20mm) - 0.039" (1.00mm) -
RGEF1400 Littelfuse Inc.

RGEF1400

PTC RESET FUSE 16V 14A RADIAL

Littelfuse Inc.

293
Datasheet Radial, Disc PolySwitch®, RGEF Bag Active Polymeric 16V 14 A 23.8 A 100 A 9 s 2.6 mOhms 6.4 mOhms - -40°C ~ 85°C - - - Through Hole 0.925" L x 0.114" W (23.50mm x 2.90mm) 1.102" (28.00mm) - 0.400" (10.15mm)
LVR055K Littelfuse Inc.

LVR055K

PTC RESET FUSE 240V 550MA RADIAL

Littelfuse Inc.

1,707
Datasheet Radial, Disc PolySwitch®, LVR Bag Active Polymeric 240V (265V Int) 550 mA 1.25 A 7 A 26 s 450 mOhms 1.45 Ohms - -20°C ~ 85°C - - - Through Hole 0.551" L x 0.161" W (14.00mm x 4.10mm) 0.822" (20.87mm) - 0.199" (5.05mm)
LR4-550F Littelfuse Inc.

LR4-550F

PTC RESET FUSE 20V 5.5A STRAP

Littelfuse Inc.

190
Datasheet Strap PolySwitch®, LR4 Bag Active Polymeric 20V 5.5 A 10.5 A 100 A 5 s 9 mOhms 22 mOhms - -40°C ~ 85°C - - - User Defined 1.417" L x 0.283" W (36.00mm x 7.20mm) - 0.039" (1.00mm) -
1210L010/90WR Littelfuse Inc.

1210L010/90WR

1210L

Littelfuse Inc.

1,329
Datasheet 1210 (3225 Metric), Concave PolySwitch® 1210L Tape & Reel (TR) Active Polymeric 90V 100 mA 250 mA 10 A 300 ms 1.5 Ohms 15 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.049" (1.25mm) -
1210L020/72WR Littelfuse Inc.

1210L020/72WR

POLYSWITCH RESETTABLE PPTC

Littelfuse Inc.

722
Datasheet 1210 (3225 Metric), Concave POLY-FUSE®, 1210L Tape & Reel (TR) Active Polymeric 72V 200 mA 400 mA 10 A 500 ms 800 mOhms 5 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.039" (1.00mm) -
1210L035/60PR Littelfuse Inc.

1210L035/60PR

POLYSWITCH RESETTABLE PPTC

Littelfuse Inc.

518
Datasheet 1210 (3225 Metric), Concave POLY-FUSE®, 1210L Tape & Reel (TR) Active Polymeric 60V 350 mA 700 mA 10 A 1 s 320 mOhms 1.5 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.059" (1.50mm) -
60R185XMR Littelfuse Inc.

60R185XMR

PTC RESET FUSE 60V 1.85A RADIAL

Littelfuse Inc.

6,212
Datasheet Radial, Disc POLY-FUSE®, 60R Cut Tape (CT) Active Polymeric 60V 1.85 A 3.7 A 40 A 12.6 s 80 mOhms 190 mOhms - -40°C ~ 85°C - - - Through Hole 0.660" Dia x 0.122" T (16.76mm x 3.10mm) 0.906" (23.00mm) - 0.201" (5.10mm)
30R500UF Littelfuse Inc.

30R500UF

PTC RESET FUSE 30V 5A RADIAL

Littelfuse Inc.

11,269
Datasheet Radial, Disc POLY-FUSE®, 30R Bulk Active Polymeric 30V 5 A 10 A 40 A 14.5 s 10 mOhms 50 mOhms - -40°C ~ 85°C - - - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 1.008" (25.60mm) - 0.402" (10.20mm)
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FAQ

Frequently Asked Questions

What are PTC Resettable Fuses components used for?

PTC Resettable Fuses components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.

How do I choose the right PTC Resettable Fuses part?

Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.

Can JIEXIN Electronics help source obsolete or hard-to-find PTC Resettable Fuses parts?

Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.

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