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
1210L350SLWR

1210L350SLWR

PTC RESET FUSE 6V 3.5A 1210

Littelfuse Inc.

426 -
RFQ
1210L350SLWR

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active 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) - 0.028" (0.70mm) -
1210L500/12SLWR

1210L500/12SLWR

PTC RESET FUSE 5.0A 12V 1210

Littelfuse Inc.

6,653 -
RFQ
1210L500/12SLWR

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 12V 5 A 10 A 50 A 2 s 1 mOhms 12 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.055" (1.40mm) -
1206L450SLWR

1206L450SLWR

PTC RESET FUSE 6V 4.5A 1206

Littelfuse Inc.

6,642 -
RFQ
1206L450SLWR

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 4.5 A 9 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) - 0.047" (1.20mm) -
NANOSMDH075F-02

NANOSMDH075F-02

PTC RESET FUSE 6V 750MA 1206

Littelfuse Inc.

2,582 -
RFQ
NANOSMDH075F-02

Datasheet

1206 (3216 Metric) PolySwitch®, nanoSMD Tape & Reel (TR) Active Polymeric 6V 750 mA 2 A 10 A 100 ms 100 mOhms 360 mOhms - -40°C ~ 125°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.60mm) - 0.039" (1.00mm) -
0805L300SLWR

0805L300SLWR

PTC RESET FUSE 6V 3A 0805

Littelfuse Inc.

3,664 -
RFQ
0805L300SLWR

Datasheet

0805 (2012 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 3 A 6 A 50 A 5 s 3 mOhms 30 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.055" (1.40mm) -
1206L300/12SLYR

1206L300/12SLYR

PTC RESET FUSE 3.0A 12V 1206

Littelfuse Inc.

2,527 -
RFQ
1206L300/12SLYR

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 12V 3 A 6 A 50 A 4 s 3 mOhms 30 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.030" (0.75mm) -
1206L500/12SLPR

1206L500/12SLPR

PTC RESET FUSE 5.0A 12V 1206

Littelfuse Inc.

1,462 -
RFQ
1206L500/12SLPR

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 12V 5 A 10 A 50 A 2 s 1 mOhms 12 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.055" (1.40mm) -
B59751C0120A070

B59751C0120A070

PTC RESET FUSE 440V 87MA RADIAL

EPCOS - TDK Electronics

19,064 -
RFQ
B59751C0120A070

Datasheet

Radial, Disc B59751 Bulk Active Ceramic 440V 87 mA 173 mA 4 A - - - 50 Ohms -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.512" Dia x 0.295" T (13.00mm x 7.50mm) 0.709" (18.00mm) - 0.197" (5.00mm)
60R250XF

60R250XF

PTC RESET FUSE 60V 2.5A RADIAL

Littelfuse Inc.

567 -
RFQ
60R250XF

Datasheet

Radial, Disc POLY-FUSE®, 60R Bulk Active Polymeric 60V 2.5 A 5 A 40 A 15.6 s 50 mOhms 130 mOhms - -40°C ~ 85°C - - - Through Hole 0.785" Dia x 0.122" T (19.93mm x 3.10mm) 1.032" (26.20mm) - 0.402" (10.20mm)
B59935C0120A070

B59935C0120A070

PTC RESET FUSE 30V 1.8A RADIAL

EPCOS - TDK Electronics

1,636 -
RFQ
B59935C0120A070

Datasheet

Radial, Disc B59935 Bulk Active Ceramic 30V 1.8 A 3.6 A 10 A - - - 300 mOhms -40°C ~ 85°C - - - Through Hole 0.866" Dia x 0.138" T (22.00mm x 3.50mm) 1.004" (25.50mm) - 0.197" (5.00mm)
B59830C0120A070

B59830C0120A070

PTC RESET FUSE 265V 460MA RADIAL

EPCOS - TDK Electronics

639 -
RFQ
B59830C0120A070

Datasheet

Radial, Disc - Bulk Active Ceramic 265V 460 mA 920 mA 7 A - - - 3.7 Ohms 0°C ~ 60°C - - - Through Hole 0.866" Dia x 0.197" T (22.00mm x 5.00mm) 1.004" (25.50mm) - 0.197" (5.00mm)
SMDC310F/18-02

SMDC310F/18-02

PTC RESET FUSE 18V 3.1A 2920

Littelfuse Inc.

964 -
RFQ
SMDC310F/18-02

Datasheet

2920 (7351 Metric), Concave SMDC Tape & Reel (TR) Active Polymeric 18V 3.1 A 6 A 50 A 25 s - - - - - - - Surface Mount 0.295" L x 0.201" W (7.50mm x 5.10mm) - 0.067" (1.70mm) -
CL20 7R0120

CL20 7R0120

PTC RESET FUSE 350V 850MA RADIAL

Ametherm

345 -
RFQ
CL20 7R0120

Datasheet

Radial, Disc - Bulk Active - 350V 850 mA 1.6 A - - - - 7 Ohms - - - - Through Hole 0.827" Dia x 0.236" T (21.00mm x 6.00mm) - - 0.307" (7.80mm)
0805L110WR

0805L110WR

PTC RESET FUSE 6V 1.1A 0805

Littelfuse Inc.

6,714 -
RFQ
0805L110WR

Datasheet

0805 (2012 Metric), Concave POLY-FUSE®, 0805L Tape & Reel (TR) Active Polymeric 6V 1.1 A 2 A 100 A 100 ms 50 mOhms 160 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.043" (1.10mm) -
0805L075WR

0805L075WR

PTC RESET FUSE 6V 750MA 0805

Littelfuse Inc.

3,488 -
RFQ
0805L075WR

Datasheet

0805 (2012 Metric), Concave POLY-FUSE®, 0805L Tape & Reel (TR) Active Polymeric 6V 750 mA 1.5 A 40 A 200 ms 90 mOhms 350 mOhms - -40°C ~ 85°C - - - Surface Mount 0.083" L x 0.053" W (2.10mm x 1.35mm) - 0.030" (0.75mm) -
16R1400GH

16R1400GH

PTC RESET FUSE 16V 14A RADIAL

Littelfuse Inc.

10,724 -
RFQ
16R1400GH

Datasheet

Radial, Disc POLY-FUSE®, 16R Bulk 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 0.138" W (23.50mm x 3.50mm) 1.098" (27.90mm) - 0.402" (10.20mm)
0402L075SLKR

0402L075SLKR

PTC 6V POLYFUSE SMT 0402 SL 0.75

Littelfuse Inc.

34,844 -
RFQ
0402L075SLKR

Datasheet

0402 (1005 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 6V 750 mA 1.5 A 40 A 100 ms 30 mOhms 300 mOhms - -40°C ~ 85°C - - - Surface Mount 0.039" L x 0.020" W (1.00mm x 0.50mm) - 0.024" (0.60mm) -
YS4020

YS4020

PTC RESET FUSE 1.0KV RADIAL DISC

Amphenol Advanced Sensors (Thermometrics)

888 -
RFQ
YS4020

Datasheet

Radial, Disc YS Bulk Active Ceramic 1.0kV - - - - - - 1.1 kOhms -20°C ~ 60°C - - - Through Hole 0.315" Dia x 0.236" T (8.00mm x 6.00mm) 0.472" (12.00mm) - 0.295" (7.50mm)
1206L110/12SLYR

1206L110/12SLYR

PTC RESET FUSE 12V 1.1A 1206

Littelfuse Inc.

2,918 -
RFQ
1206L110/12SLYR

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Active Polymeric 12V 1.1 A 2.2 A 50 A 300 ms 15 mOhms 130 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.033" (0.85mm) -
YQS8065

YQS8065

PTC RESET FUSE 265V 168MA RADIAL

Amphenol Advanced Sensors (Thermometrics)

5,798 -
RFQ
YQS8065

Datasheet

Radial, Disc YM Bulk Active Ceramic 265V 168 mA 265 mA 1.3 A - - - 20 Ohms 0°C ~ 55°C - - - Through Hole 0.374" Dia x 0.177" T (9.50mm x 4.50mm) 0.591" (15.00mm) - 0.197" (5.00mm)
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