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
16R700GKLF

16R700GKLF

POLYFUSE RADIAL

Littelfuse Inc.

5,153 -
RFQ

-

- - Bulk Obsolete - - - - - - - - - - - - - - - - - -
30R500UFX1001

30R500UFX1001

POLYFUSE RADIAL

Littelfuse Inc.

3,078 -
RFQ

-

- - Bulk Obsolete - - - - - - - - - - - - - - - - - -
600R150FX1001

600R150FX1001

POLYFUSE RADIAL

Littelfuse Inc.

5,929 -
RFQ

-

- - Bulk Obsolete - - - - - - - - - - - - - - - - - -
250R170-CMR

250R170-CMR

POLYFUSE RADIAL

Littelfuse Inc.

2,414 -
RFQ

-

- - Tape & Reel (TR) Obsolete - - - - - - - - - - - - - - - - - -
MPTS1206L005

MPTS1206L005

PTC RESET FUSE 60V 0.05A 1206

Meritek

8,280 -
RFQ
MPTS1206L005

Datasheet

1206 (3216 Metric) MPTS Tape & Reel (TR) Active Polymeric 60V 50 mA 150 mA 100 A 1.5 s 3.6 Ohms 50 Ohms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.065" W (3.25mm x 1.65mm) - 0.033" (0.85mm) -
MPTS2920L100

MPTS2920L100

PTC RESET FUSE 33V 1.1A 2920

Meritek

8,162 -
RFQ
MPTS2920L100

Datasheet

2920 (7351 Metric) MPTS Tape & Reel (TR) Active Polymeric 33V 1.1 A 2.2 A 100 A 500 ms 90 mOhms 410 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.039" (1.00mm) -
FSMD250-2920-R

FSMD250-2920-R

RESETTABLE FUSE - SMD, 2920 SIZE

RFE/Fuzetec

5,969 -
RFQ
FSMD250-2920-R

Datasheet

2920 (7351 Metric), Concave FSMD2920 Tape & Reel (TR) Active - 16V 2.5 A 5 A 100 A 16 s 25 mOhms 85 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.035" (0.90mm) -
FRU160-30F

FRU160-30F

RESETTABLE FUSE - PPTC RADIAL LE

RFE/Fuzetec

3,362 -
RFQ
FRU160-30F

Datasheet

Radial, Disc FRU Bulk Active - 30V 1.6 A 3.2 A 100 A 8 s 30 mOhms 110 mOhms - -40°C ~ 85°C - - - Through Hole 0.350" L x 0.118" W (8.90mm x 3.00mm) 0.598" (15.20mm) - 0.201" (5.10mm)
FSMD110-16-1206R

FSMD110-16-1206R

RESETTABLE FUSE - SMD, 1206 SIZE

RFE/Fuzetec

4,901 -
RFQ
FSMD110-16-1206R

Datasheet

1206 (3216 Metric), Concave FSMD1206 Tape & Reel (TR) Active - 16V 1.1 A 2.2 A 100 A 300 ms 40 mOhms 180 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.065" W (3.25mm x 1.65mm) - 0.055" (1.40mm) -
MF-LSMF400/12X-2

MF-LSMF400/12X-2

PTC RESETTABLE 4.0A 12V SMD 2920

Bourns Inc.

4,420 -
RFQ
MF-LSMF400/12X-2

Datasheet

2920 (7351 Metric), Concave Multifuse®, MF-LSMF Tape & Reel (TR) Active Polymeric 12V 4 A 8 A 40 A 15 s 5 mOhms - - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.063" (1.60mm) -
1210L010/90YR

1210L010/90YR

1210L

Littelfuse Inc.

5,398 -
RFQ
1210L010/90YR

Datasheet

1210 (3225 Metric), Concave PolySwitch® 1210L Tape & Reel (TR) Discontinued at Digi-Key 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) -
KMC3S010RY

KMC3S010RY

Polymer PTC 0.1A Resettable Fuse

Thinking Electronics Industrial Co.

3,730 -
RFQ
KMC3S010RY

Datasheet

1206 (3216 Metric), Concave KMC Tape & Reel (TR) Active Polymeric 60V 100 mA 250 mA 100 A 1 s 1.6 Ohms 15 Ohms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.065" W (3.25mm x 1.65mm) - 0.035" (0.90mm) -
KRG0300300SBY

KRG0300300SBY

Polymer PTC Resettable Fuse 30V

Thinking Electronics Industrial Co.

8,455 -
RFQ
KRG0300300SBY

Datasheet

Radial, Disc KRG Bag Active Polymeric 30V 3 A 6 A 40 A 10.8 s 20 mOhms 80 mOhms 50 mOhms -40°C ~ 85°C - - - Through Hole 0.449" L x 0.138" W (11.40mm x 3.50mm) 0.681" (17.30mm) - 0.197" (5.00mm)
R1812-150-24-R

R1812-150-24-R

PTC Fuse - SMD 1812, 1.5A 24VDC

OptiFuse

5,087 -
RFQ
R1812-150-24-R

Datasheet

1812 (4532 Metric), Concave - Tape & Reel (TR) Active Polymeric 24V 1.5 A 3 A 100 A 500 ms 40110 mOhms 120 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.051" (1.30mm) -
B59930C0160A051

B59930C0160A051

PTC THERMISTORS

EPCOS - TDK Electronics

6,069 -
RFQ

-

- - Bulk Obsolete - - - - - - - - - - - - - - - - - -
RS16-600

RS16-600

PTC Fuse - Radial Lead, 16V 6A

OptiFuse

5,086 -
RFQ
RS16-600

Datasheet

Radial, Disc RS16 Bulk Active Polymeric 16V 6 A 10.2 A 100 A 5.8 s 0.009 Ohms 0.033 Ohms - -40°C ~ 85°C - - - Through Hole - - - -
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