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
MF-R300-0-14

MF-R300-0-14

PTC RESETTABLE 3.0A 30V RADIAL L

Bourns Inc.

3,235 -
RFQ
MF-R300-0-14

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 30V 3 A 6 A 40 A 10.8 s 20 mOhms 80 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
MF-RHT050-2-17

MF-RHT050-2-17

PTC 0.5A 16V RADIAL LEADED HI-TE

Bourns Inc.

8,553 -
RFQ
MF-RHT050-2-17

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Reel (TR) Active Polymeric 30V 500 mA 920 mA 40 A 2.5 s 480 mOhms 1.1 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.500" (12.70mm) - 0.201" (5.10mm)
MF-R250-2-14

MF-R250-2-14

PTC RESETTABLE 2.5A 30V RADIAL L

Bourns Inc.

7,061 -
RFQ
MF-R250-2-14

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Active Polymeric 30V 2.5 A 5 A 40 A 10.3 s 25 mOhms 70 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
MF-R250-AP-14

MF-R250-AP-14

PTC RESETTABLE 2.5A 30V RADIAL L

Bourns Inc.

7,647 -
RFQ
MF-R250-AP-14

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Box (TB) Active Polymeric 30V 2.5 A 5 A 40 A 10.3 s 25 mOhms 70 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
MF-RHT070-AP-17

MF-RHT070-AP-17

PTC 0.7A 16V RADIAL LEADED HI-TE

Bourns Inc.

7,052 -
RFQ
MF-RHT070-AP-17

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Box (TB) Active Polymeric 30V 700 mA 1.4 A 40 A 4 s 300 mOhms 800 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.270" L x 0.118" W (6.86mm x 3.00mm) 0.425" (10.80mm) - 0.201" (5.10mm)
MF-RHT050-AP-17

MF-RHT050-AP-17

PTC 0.5A 16V RADIAL LEADED HI-TE

Bourns Inc.

2,320 -
RFQ
MF-RHT050-AP-17

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Box (TB) Active Polymeric 30V 500 mA 920 mA 40 A 2.5 s 480 mOhms 1.1 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.500" (12.70mm) - 0.201" (5.10mm)
15LR260U

15LR260U

PTC RESET FUSE 15V 2.6A STRAP

Littelfuse Inc.

4,444 -
RFQ

-

Strap POLY-FUSE®, LR Bulk Obsolete Polymeric 15V 2.6 A 5.8 A 100 A 5 s 20 mOhms 63 mOhms - -40°C ~ 85°C - - - User Defined 0.866" L x 0.205" W (22.00mm x 5.20mm) - 0.039" (1.00mm) -
PTGL05BD102N9N51A0

PTGL05BD102N9N51A0

PTC RESET FUSE

Murata Electronics

5,263 -
RFQ

-

- * Tape & Box (TB) Obsolete - - - - - - - - - - - - - - - - - -
PTSLR12066V380

PTSLR12066V380

PTC RESET FUSE 6V 3.8A 1206

Eaton - Electronics Division

2,981 -
RFQ
PTSLR12066V380

Datasheet

1206 (3216 Metric), Concave PTSLR1206 Tape & Reel (TR) Active Polymeric 6V 3.8 A 8 A 50 A 5 s 2 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) -
SMD1812P110TF/16A

SMD1812P110TF/16A

PTC RESET FUSE 16V 1.1A 1812

Littelfuse Inc.

5,117 -
RFQ
SMD1812P110TF/16A

Datasheet

1812 (4532 Metric), Concave POLY-FUSE®, SMD1812 Tape & Reel (TR) Obsolete Polymeric 16V 1.1 A 1.95 A 40 A 500 ms 60 mOhms 180 mOhms - -40°C ~ 85°C - - - Surface Mount 0.179" L x 0.128" W (4.55mm x 3.24mm) - 0.039" (1.00mm) -
PTSLR12106V380

PTSLR12106V380

PTC RESET FUSE 6V 3.8A 1210

Eaton - Electronics Division

6,644 -
RFQ
PTSLR12106V380

Datasheet

1210 (3225 Metric), Concave PTSLR1210 Tape & Reel (TR) Active Polymeric 6V 3.8 A 8 A 50 A 2 s 3 mOhms 16 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.101" W (3.22mm x 2.58mm) - 0.047" (1.20mm) -
PRG21BC2R2MS5RA

PRG21BC2R2MS5RA

PTC RESET FUSE

Murata Electronics

7,867 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21BC6R8MS5RA

PRG21BC6R8MS5RA

PTC RESET FUSE

Murata Electronics

9,404 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21AR220MS5RA

PRG21AR220MS5RA

PTC RESET FUSE

Murata Electronics

5,420 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21AR100MS5RA

PRG21AR100MS5RA

PTC RESET FUSE

Murata Electronics

4,887 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21AR150MS5RA

PRG21AR150MS5RA

PTC RESET FUSE

Murata Electronics

6,176 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21AR8R2MS5RA

PRG21AR8R2MS5RA

PTC RESET FUSE

Murata Electronics

6,220 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21BC3R3MS5RA

PRG21BC3R3MS5RA

PTC RESET FUSE

Murata Electronics

2,574 -
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
RF5055-000

RF5055-000

PICOASMDC110S-2

Littelfuse Inc.

8,209 -
RFQ
RF5055-000

Datasheet

0805 (2012 Metric), Concave PolySwitch® picoASMDC Tape & Reel (TR) Active Polymeric 6V 1.1 A 2.2 A 40 A 200 ms 50 mOhms 170 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.083" L x 0.055" W (2.10mm x 1.40mm) - 0.047" (1.20mm) -
RF5054-000

RF5054-000

PICOASMDC075S-2

Littelfuse Inc.

7,322 -
RFQ
RF5054-000

Datasheet

0805 (2012 Metric), Concave PolySwitch® picoASMDC Tape & Reel (TR) Active Polymeric 6V 750 mA 1.5 A 40 A 200 ms 100 mOhms 350 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.083" L x 0.055" W (2.10mm x 1.40mm) - 0.037" (0.93mm) -
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