PTC Resettable Fuses

Manufacturer 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

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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
SRP175SF

SRP175SF

PTC RESET FUSE 15V 1.75A STRAP

Littelfuse Inc.

3,630 -
RFQ
SRP175SF

Datasheet

Strap PolySwitch®, SRP Bulk Active Polymeric 15V 1.75 A 3.8 A 100 A 5 s 50 mOhms 120 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.199" W (22.00mm x 5.05mm) - 0.039" (1.00mm) -
TCF250-100T-RB-B-0.5

TCF250-100T-RB-B-0.5

PTC RESET FUSE 60V 90MA SMD

Littelfuse Inc.

9,848 -
RFQ

-

Nonstandard SMD PolySwitch®, TCF250 Bulk Active Polymeric 60V (250V Int) 90 mA 150 mA 3 A 200 ms 15.4 Ohms 24 Ohms - -40°C ~ 85°C - - - Surface Mount 0.187" L x 0.187" W (4.75mm x 4.75mm) - 0.091" (2.30mm) -
TRF250-120T-RG-B-0.5

TRF250-120T-RG-B-0.5

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

4,350 -
RFQ
TRF250-120T-RG-B-0.5

Datasheet

Radial, Disc PolySwitch®, TRF250 Bulk Active Polymeric 60V (250V Int) 120 mA 240 mA 3 A 750 ms 8.5 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)
TR600-150QF-EX-B-0.5

TR600-150QF-EX-B-0.5

PTC RESET FUSE RADIAL DISC

Littelfuse Inc.

6,209 -
RFQ

-

Radial, Disc PolySwitch®, TR600 Bag Active Polymeric - - - - - - - - - - - - Through Hole 0.532" L x 0.236" W (13.50mm x 6.00mm) 0.496" (12.60mm) - 0.197" (5.00mm)
VLP190UF

VLP190UF

PTC RESET FUSE 16V 1.9A STRAP

Littelfuse Inc.

7,994 -
RFQ

-

Strap PolySwitch®, VLP Bulk Active Polymeric 16V 1.9 A 4.7 A 60 A 5 s 21 mOhms 72 mOhms - - - - - User Defined 1.004" L x 0.906" W (25.50mm x 23.00mm) - 0.276" (7.00mm) -
VLP270XXUF

VLP270XXUF

PTC RESET FUSE 16V 2.7A STRAP

Littelfuse Inc.

3,343 -
RFQ

-

Strap PolySwitch®, VLP Bulk Active Polymeric 16V 2.7 A 6.5 A 60 A 5 s 12 mOhms 36 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.201" W (22.00mm x 5.10mm) - 0.032" (0.80mm) -
VLR170UF

VLR170UF

PTC RESET FUSE 12V 1.7A STRAP

Littelfuse Inc.

6,736 -
RFQ

-

Strap PolySwitch®, VLR Bulk Active Polymeric 12V 1.7 A 4.1 A 100 A 5 s 18 mOhms 64 mOhms - -40°C ~ 70°C - - - User Defined 0.866" L x 0.142" W (22.00mm x 3.60mm) - 0.028" (0.70mm) -
VLR175UF

VLR175UF

PTC RESET FUSE 12V 1.75A STRAP

Littelfuse Inc.

5,651 -
RFQ
VLR175UF

Datasheet

Strap PolySwitch®, VLR Bulk Active Polymeric 12V 1.75 A 4.2 A 100 A 5 s 17 mOhms 62 mOhms - -40°C ~ 70°C - - - User Defined 0.935" L x 0.118" W (23.75mm x 3.00mm) - 0.028" (0.70mm) -
LVR005NS-1

LVR005NS-1

PTC RESET FUSE 240V 50MA RADIAL

Littelfuse Inc.

6,045 -
RFQ
LVR005NS-1

Datasheet

Radial, Disc PolySwitch®, LVR Bag Active Polymeric 240V (265V Int) 50 mA 120 mA 1 A 10 s 18.5 Ohms 65 Ohms - -20°C ~ 85°C - - - Through Hole 0.272" Dia x 0.181" T (6.90mm x 4.60mm) 0.390" (9.90mm) - 0.200" (5.08mm)
LVR005NK-2

LVR005NK-2

PTC RESET FUSE 240V 50MA RADIAL

Littelfuse Inc.

3,273 -
RFQ
LVR005NK-2

Datasheet

Radial, Disc PolySwitch®, LVR Tape & Reel (TR) Active Polymeric 240V 50 mA 120 mA 1 A 10 s 18.5 Ohms 65 Ohms - - - - - Through Hole 0.272" Dia x 0.181" T (6.90mm x 4.60mm) 0.476" (12.10mm) - 0.200" (5.08mm)
16R1100GMR

16R1100GMR

PTC RESET FUSE 16V 11A RADIAL

Littelfuse Inc.

4,233 -
RFQ
16R1100GMR

Datasheet

Radial, Disc POLY-FUSE®, 16R Tape & Box (TB) Obsolete Polymeric 16V 11 A 18.7 A 100 A 7 s 3.7 mOhms 8.9 mOhms - -40°C ~ 85°C - - - Through Hole 0.689" L x 0.118" W (17.50mm x 3.00mm) 1.024" (26.00mm) - 0.201" (5.10mm)
16R1200GMR

16R1200GMR

PTC RESET FUSE 16V 12A RADIAL

Littelfuse Inc.

9,345 -
RFQ
16R1200GMR

Datasheet

Radial, Disc POLY-FUSE®, 16R Tape & Box (TB) Obsolete Polymeric 16V 12 A 20.4 A 100 A 7.5 s 3.3 mOhms 8.6 mOhms - -40°C ~ 85°C - - - Through Hole 0.689" L x 0.138" W (17.50mm x 3.50mm) 1.102" (28.00mm) - 0.402" (10.20mm)
16R800GMR

16R800GMR

PTC RESET FUSE 16V 8A RADIAL

Littelfuse Inc.

8,025 -
RFQ
16R800GMR

Datasheet

Radial, Disc POLY-FUSE®, 16R Tape & Box (TB) Obsolete Polymeric 16V 8 A 13.6 A 100 A 5 s 5.6 mOhms 17.5 mOhms - -40°C ~ 85°C - - - Through Hole 0.500" L x 0.118" W (12.70mm x 3.00mm) 0.823" (20.90mm) - 0.201" (5.10mm)
72R300XMR

72R300XMR

PTC RESET FUSE 72V 3A RADIAL

Littelfuse Inc.

2,091 -
RFQ
72R300XMR

Datasheet

Radial, Disc POLY-FUSE®, 72R Tape & Box (TB) Obsolete Polymeric 72V 3 A 6 A 40 A 19.8 s 40 mOhms 100 mOhms - -40°C ~ 85°C - - - Through Hole 0.910" Dia x 0.122" T (23.11mm x 3.10mm) 1.154" (29.30mm) - 0.402" (10.20mm)
16R250GU

16R250GU

PTC RESET FUSE 16V 2.5A RADIAL

Littelfuse Inc.

8,379 -
RFQ
16R250GU

Datasheet

Radial, Disc POLY-FUSE®, 16R Bulk Obsolete Polymeric 16V 2.5 A 4.7 A 100 A 5 s 22 mOhms 53 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)
16R600GU

16R600GU

PTC RESET FUSE 16V 6A RADIAL

Littelfuse Inc.

9,623 -
RFQ
16R600GU

Datasheet

Radial, Disc POLY-FUSE®, 16R Bulk Obsolete Polymeric 16V 6 A 10.2 A 100 A 3.3 s 10 mOhms 28 mOhms - -40°C ~ 85°C - - - Through Hole 0.421" L x 0.118" W (10.70mm x 3.00mm) 0.673" (17.10mm) - 0.201" (5.10mm)
16R700GF

16R700GF

PTC RESET FUSE 16V 7A RADIAL

Littelfuse Inc.

4,979 -
RFQ
16R700GF

Datasheet

Radial, Disc POLY-FUSE®, 16R Bulk Obsolete Polymeric 16V 7 A 11.9 A 100 A 3.5 s 7.7 mOhms 20 mOhms - -40°C ~ 85°C - - - Through Hole 0.441" L x 0.118" W (11.20mm x 3.00mm) 0.776" (19.70mm) - 0.201" (5.10mm)
16R1000GF

16R1000GF

PTC RESET FUSE 16V 10A RADIAL

Littelfuse Inc.

2,028 -
RFQ
16R1000GF

Datasheet

Radial, Disc POLY-FUSE®, 16R Bulk Obsolete Polymeric 16V 10 A 17 A 100 A 6 s 4 mOhms 10.2 mOhms - -40°C ~ 85°C - - - Through Hole 0.650" L x 0.118" W (16.50mm x 3.00mm) 0.992" (25.20mm) - 0.201" (5.10mm)
16R1200GH

16R1200GH

PTC RESET FUSE 16V 12A RADIAL

Littelfuse Inc.

9,201 -
RFQ
16R1200GH

Datasheet

Radial, Disc POLY-FUSE®, 16R Bulk Obsolete Polymeric 16V 12 A 20.4 A 100 A 7.5 s 3.3 mOhms 8.6 mOhms - -40°C ~ 85°C - - - Through Hole 0.689" L x 0.138" W (17.50mm x 3.50mm) 1.102" (28.00mm) - 0.402" (10.20mm)
72R020XU

72R020XU

PTC RESET FUSE 72V 200MA RADIAL

Littelfuse Inc.

5,921 -
RFQ
72R020XU

Datasheet

Radial, Disc POLY-FUSE®, 72R Bulk Obsolete Polymeric 72V 200 mA 400 mA 40 A 2.2 s 1.83 Ohms 4.4 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.461" (11.70mm) - 0.201" (5.10mm)
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