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
1812L125ZR

1812L125ZR

PTC RESET FUSE 1.25A 1812

Littelfuse Inc.

4,554 -
RFQ
1812L125ZR

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Obsolete Polymeric - 1.25 A 2.5 A 100 A 400 ms 50 mOhms 140 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
1812L150ZRT

1812L150ZRT

PTC RESET FUSE 8V 1.25A 1812

Littelfuse Inc.

7,114 -
RFQ
1812L150ZRT

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Obsolete Polymeric 8V 1.25 A 3 A 100 A 300 ms 40 mOhms 110 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.049" (1.25mm) -
1812L160ZRT

1812L160ZRT

PTC RESET FUSE 8V 1.6A 1812

Littelfuse Inc.

3,909 -
RFQ
1812L160ZRT

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, 1812L Tape & Reel (TR) Obsolete Polymeric 8V 1.6 A 2.8 A 100 A 1 s 30 mOhms 100 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.030" (0.75mm) -
1210L500SLTH-VYR

1210L500SLTH-VYR

PTC RESET FUSE 6V 5A 1210

Littelfuse Inc.

4,205 -
RFQ
1210L500SLTH-VYR

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, LoRho Tape & Reel (TR) Obsolete Polymeric 6V 5 A 10 A 50 A - - - - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.031" (0.80mm) -
BK16-800-SZ

BK16-800-SZ

PTC RESET FUSE 16V 8A RAD

YAGEO

7,299 -
RFQ
BK16-800-SZ

Datasheet

Radial, Disc BK16 Bulk Active Polymeric 16V 8 A 16 A 100 A 5.6 s 6 mOhms 14.5 mOhms - -40°C ~ 85°C - - - Through Hole 0.571" L x 0.122" W (14.50mm x 3.10mm) 0.984" (25.00mm) - 0.201" (5.10mm)
BK16-900-SZ

BK16-900-SZ

PTC RESET FUSE 16V 9A RAD

YAGEO

5,879 -
RFQ
BK16-900-SZ

Datasheet

Radial, Disc BK16 Bulk Active Polymeric 16V 9 A 18 A 100 A 4.7 s 4 mOhms 12 mOhms - -40°C ~ 85°C - - - Through Hole 0.591" L x 0.122" W (15.00mm x 3.10mm) 0.984" (25.00mm) - 0.201" (5.10mm)
RTEF135-2

RTEF135-2

PTC RESET FUSE 33V 1.35A RADIAL

Littelfuse Inc.

5,500 -
RFQ

-

Radial, Disc PolySwitch® Tape & Reel (TR) Obsolete Polymeric 33V 1.35 A 2.5 A 40 A 4.5 s 59 mOhms 143 mOhms - - - - - Through Hole 0.291" L x 0.118" W (7.40mm x 3.00mm) 0.559" (14.20mm) - 0.199" (5.05mm)
RHEF050US

RHEF050US

PTC RESET FUSE 30V 500MA RADIAL

Littelfuse Inc.

7,862 -
RFQ
RHEF050US

Datasheet

Radial, Disc PolySwitch®, RHEF Bag Obsolete Polymeric 30V 500 mA 920 mA 40 A 2.5 s 480 mOhms 1.1 Ohms - -40°C ~ 125°C - - - Through Hole 0.201" Dia x 0.118" T (5.10mm x 3.00mm) 0.201" (5.10mm) - 0.199" (5.05mm)
RXE110-2

RXE110-2

PTC RESET FUSE 72V 1.1A RADIAL

Littelfuse Inc.

4,810 -
RFQ
RXE110-2

Datasheet

Radial, Disc PolySwitch®, RXE Tape & Reel (TR) Obsolete Polymeric 72V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - - - - - Through Hole 0.504" Dia x 0.118" T (12.80mm x 3.00mm) 0.689" (17.50mm) - 0.199" (5.05mm)
0ZRB0400FA2B

0ZRB0400FA2B

PTC RESET FUSE

Bel Fuse Inc.

6,466 -
RFQ

-

Radial, Disc 0ZRB Tape & Reel (TR) Active Polymeric 30V 4 A 8 A 40 A 12.7 s 10 mOhms 50 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.791" (20.10mm) - 0.201" (5.10mm)
MINISMDE190F-2

MINISMDE190F-2

PTC RESET FUSE 16V 1.9A 4520

Littelfuse Inc.

7,902 -
RFQ
MINISMDE190F-2

Datasheet

4520 (11350 Metric), Concave PolySwitch® Tape & Reel (TR) Obsolete Polymeric 16V 1.9 A 3.8 A 100 A 2 s 24 mOhms - - - - - - Surface Mount 0.446" L x 0.200" W (11.33mm x 5.08mm) - 0.021" (0.53mm) -
RUSBF160-2

RUSBF160-2

PTC RESET FUSE 16V 1.6A RADIAL

Littelfuse Inc.

2,111 -
RFQ
RUSBF160-2

Datasheet

Radial, Disc PolySwitch®, RUSBF Tape & Reel (TR) Active Polymeric 16V 1.6 A 3.2 A 40 A 9 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) - 0.199" (5.05mm)
PRG21AR220MB1RK

PRG21AR220MB1RK

PTC RESET FUSE 16V 75MA 0805

Murata Electronics

8,849 -
RFQ
PRG21AR220MB1RK

Datasheet

0805 (2012 Metric) POSISTOR®, PRG Tape & Reel (TR) Active Ceramic 16V 75 mA 195 mA 900 mA - - - 22 Ohms -40°C ~ 105°C - - - Surface Mount 0.079" L x 0.049" W (2.00mm x 1.25mm) - 0.057" (1.45mm) -
SMD1210P005TFA

SMD1210P005TFA

PTC RESET FUSE 30V 50MA 1210

Littelfuse Inc.

3,914 -
RFQ
SMD1210P005TFA

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, SMD1210 Tape & Reel (TR) Obsolete Polymeric 30V 50 mA 150 mA 10 A 1.5 s 3.6 Ohms 50 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.039" (1.00mm) -
SMD1210P010TFA

SMD1210P010TFA

PTC RESET FUSE 30V 100MA 1210

Littelfuse Inc.

7,021 -
RFQ
SMD1210P010TFA

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, SMD1210 Tape & Reel (TR) Obsolete Polymeric 30V 100 mA 300 mA 10 A 1.5 s 1.6 Ohms 15 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.039" (1.00mm) -
SMD1210P020TFA

SMD1210P020TFA

PTC RESET FUSE 30V 200MA 1210

Littelfuse Inc.

5,364 -
RFQ
SMD1210P020TFA

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, SMD1210 Tape & Reel (TR) Obsolete Polymeric 30V 200 mA 400 mA 10 A 20 ms 800 mOhms 5 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.032" (0.80mm) -
SMD1210P035TFA

SMD1210P035TFA

PTC RESET FUSE 6V 350MA 1210

Littelfuse Inc.

3,759 -
RFQ
SMD1210P035TFA

Datasheet

1210 (3225 Metric), Concave POLY-FUSE®, SMD1210 Tape & Reel (TR) Obsolete Polymeric 6V 350 mA 700 mA 40 A 200 ms 320 mOhms 1.3 Ohms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.027" (0.68mm) -
TCF250-120

TCF250-120

PTC RESET FUSE 60V 120MA SMD

Littelfuse Inc.

8,703 -
RFQ
TCF250-120

Datasheet

Nonstandard SMD PolySwitch®, TCF250 Bulk Active Polymeric 60V (250V Int) 120 mA 240 mA 3 A 900 ms 5 Ohms 14 Ohms - -40°C ~ 85°C - - - Surface Mount 0.217" L x 0.217" W (5.50mm x 5.50mm) - 0.091" (2.30mm) -
PTGL06AR0R8M1B51A0

PTGL06AR0R8M1B51A0

PTC RESET FUSE 16V 505MA RADIAL

Murata Electronics

6,239 -
RFQ
PTGL06AR0R8M1B51A0

Datasheet

Radial, Disc POSISTOR®, PTGL Bulk Obsolete Ceramic 16V 505 mA 955 mA 3 A - - - 800 mOhms -10°C ~ 60°C - - - Through Hole 0.256" Dia x 0.138" T (6.50mm x 3.50mm) 0.394" (10.00mm) - 0.197" (5.00mm)
0ZCC0150FF2C

0ZCC0150FF2C

PTC RESET FUSE 8V 1.5A 1812

Bel Fuse Inc.

3,085 -
RFQ
0ZCC0150FF2C

Datasheet

1812 (4532 Metric) 0ZCC Tape & Reel (TR) Obsolete Polymeric 8V 1.5 A 3 A 100 A 500 ms 40 mOhms 110 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.061" (1.55mm) -
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