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-RG400-AP-14

MF-RG400-AP-14

PTC RESETTABLE 4A 16V RADIAL LEA

Bourns Inc.

2,678 -
RFQ
MF-RG400-AP-14

Datasheet

Radial, Disc Multifuse®, MF-RG Tape & Box (TB) Active Polymeric 16V 4 A 6.8 A 100 A 1.7 s 21 mOhms 60 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.390" L x 0.118" W (9.90mm x 3.00mm) 0.504" (12.80mm) - 0.201" (5.10mm)
MF-RG300-AP-14

MF-RG300-AP-14

PTC RESETTABLE 3.0A 16V RADIAL L

Bourns Inc.

4,703 -
RFQ
MF-RG300-AP-14

Datasheet

Radial, Disc Multifuse®, MF-RG Tape & Reel (TR) Active Polymeric 16V 3 A 5.1 A 100 A 1 s 38 mOhms 97.5 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.280" L x 0.118" W (7.10mm x 3.00mm) 0.433" (11.00mm) - 0.201" (5.10mm)
MF-RG600-0-14

MF-RG600-0-14

PTC RESETTABLE 6A 16V RADIAL LEA

Bourns Inc.

5,479 -
RFQ
MF-RG600-0-14

Datasheet

Radial, Disc Multifuse®, MF-RG Bulk Active Polymeric 16V 6 A 10.2 A 100 A 3.3 s 10 mOhms 28 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.421" L x 0.118" W (10.70mm x 3.00mm) 0.673" (17.10mm) - 0.201" (5.10mm)
MF-R700-0-14

MF-R700-0-14

PTC RESETTABLE 7.0A 30V RADIAL L

Bourns Inc.

3,286 -
RFQ
MF-R700-0-14

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 30V 7 A 14 A 40 A 17.5 s 5 mOhms 30 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.870" L x 0.118" W (22.10mm x 3.00mm) 1.173" (29.80mm) - 0.402" (10.20mm)
MF-RG500-0-14

MF-RG500-0-14

PTC RESETTABLE 5.0A 16V RADIAL L

Bourns Inc.

5,995 -
RFQ
MF-RG500-0-14

Datasheet

Radial, Disc Multifuse®, MF-RG Bulk Active Polymeric 16V 5 A 8.5 A 100 A 2 s 15 mOhms 34 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.409" L x 0.118" W (10.40mm x 3.00mm) 0.563" (14.30mm) - 0.201" (5.10mm)
MF-RHT650-2-14

MF-RHT650-2-14

PTC 6.5A 16V RADIAL LEADED HI-TE

Bourns Inc.

2,117 -
RFQ
MF-RHT650-2-14

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Reel (TR) Active Polymeric 16V 6.5 A 12 A 100 A 5.5 s 11 mOhms 26 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.500" L x 0.118" W (12.70mm x 3.00mm) 0.874" (22.20mm) - 0.201" (5.10mm)
MF-RG300-2-14

MF-RG300-2-14

PTC RESETTABLE 3.0A 16V RADIAL L

Bourns Inc.

6,599 -
RFQ
MF-RG300-2-14

Datasheet

Radial, Disc Multifuse®, MF-RG Tape & Reel (TR) Active Polymeric 16V 3 A 5.1 A 100 A 1 s 38 mOhms 97.5 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.280" L x 0.118" W (7.10mm x 3.00mm) 0.433" (11.00mm) - 0.201" (5.10mm)
MF-RHT600-2-14

MF-RHT600-2-14

PTC 6.0A 16V RADIAL LEADED HI-TE

Bourns Inc.

8,648 -
RFQ
MF-RHT600-2-14

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Reel (TR) Active Polymeric 16V 6 A 10.8 A 100 A 5 s 13 mOhms 32 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.441" L x 0.118" W (11.20mm x 3.00mm) 0.827" (21.00mm) - 0.201" (5.10mm)
MF-RHT600-AP-14

MF-RHT600-AP-14

PTC 6.0A 16V RADIAL LEADED HI-TE

Bourns Inc.

5,441 -
RFQ
MF-RHT600-AP-14

Datasheet

Radial, Disc Multifuse®, MF-RHT Tape & Box (TB) Active Polymeric 16V 6 A 10.8 A 100 A 5 s 13 mOhms 32 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.441" L x 0.118" W (11.20mm x 3.00mm) 0.827" (21.00mm) - 0.201" (5.10mm)
PTGL09BD4R7N2B51A0

PTGL09BD4R7N2B51A0

PTC RESET FUSE 24V 216MA RADIAL

Murata Electronics

7,260 -
RFQ
PTGL09BD4R7N2B51A0

Datasheet

Radial, Disc POSISTOR®, PTGL Bulk Obsolete Ceramic 24V 216 mA 398 mA 2 A - - - 4.7 Ohms -10°C ~ 60°C - - - Through Hole 0.374" Dia x 0.157" T (9.50mm x 4.00mm) 0.610" (15.50mm) - 0.197" (5.00mm)
PTGL09AS1R2K2B51A0

PTGL09AS1R2K2B51A0

PTC RESET FUSE 30V 704MA RADIAL

Murata Electronics

9,980 -
RFQ
PTGL09AS1R2K2B51A0

Datasheet

Radial, Disc POSISTOR®, PTGL Tape & Box (TB) Obsolete Ceramic 30V 704 mA 936 mA 6 A - - - 1.2 Ohms -30°C ~ 85°C - - - Through Hole 0.366" Dia x 0.138" T (9.30mm x 3.50mm) 0.563" (14.30mm) - 0.197" (5.00mm)
250R120-R1U

250R120-R1U

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

2,121 -
RFQ
250R120-R1U

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 6 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) - 0.201" (5.10mm)
0ZRS0200FF2B

0ZRS0200FF2B

PTC RESET FUSE 32V 2A RADIAL

Bel Fuse Inc.

2,665 -
RFQ
0ZRS0200FF2B

Datasheet

Radial, Disc 0ZRS Tape & Reel (TR) Active Ceramic 32V 2 A 4 A 100 A 5.5 s 65 mOhms 250 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.374" L x 0.118" W (9.50mm x 3.00mm) 0.531" (13.50mm) - 0.201" (5.10mm)
30ST350U

30ST350U

PTC RESET FUSE 30V 3.5A STRAP

Littelfuse Inc.

4,961 -
RFQ
30ST350U

Datasheet

Strap POLY-FUSE®, ST Bulk Obsolete Polymeric 30V 3.5 A 6.3 A 100 A 3 s 17 mOhms 31 mOhms - -40°C ~ 85°C - - - User Defined 1.185" L x 0.522" W (30.10mm x 13.25mm) - 0.043" (1.10mm) -
30ST420U

30ST420U

PTC RESET FUSE 30V 4.2A STRAP

Littelfuse Inc.

6,811 -
RFQ
30ST420U

Datasheet

Strap POLY-FUSE®, ST Bulk Obsolete Polymeric 30V 4.2 A 7.6 A 100 A 6 s 12 mOhms 40 mOhms - -40°C ~ 85°C - - - User Defined 1.240" L x 0.522" W (31.50mm x 13.25mm) - 0.043" (1.10mm) -
PFLR.260

PFLR.260

PTC RESET FUSE 15V 2.6A STRAP

SCHURTER Inc.

9,172 -
RFQ
PFLR.260

Datasheet

Strap PFLR Bulk Obsolete Polymeric 15V 2.6 A 5.8 A 100 A 5 s 20 mOhms 63 mOhms - -45°C ~ 85°C - - - User Defined 0.866" L x 0.199" W (22.00mm x 5.05mm) - 0.039" (1.00mm) -
BBRF750

BBRF750

PTC RESET FUSE 99V 750MA RADIAL

Littelfuse Inc.

7,428 -
RFQ

-

Radial, Disc PolySwitch® Bulk Obsolete Polymeric 99V 750 mA 1.5 A 20 A 60 s 400 mOhms 1.2 Ohms - - - - - Through Hole - - - -
CMF-SDV09-2

CMF-SDV09-2

PTC RESET FUSE

Bourns Inc.

7,625 -
RFQ

-

- CMF-SD Tape & Reel (TR) Obsolete - - - - - - - - - - - - - - - - - -
MF-LR600

MF-LR600

PTC RESET FUSE 10V 6A STRAP

Bourns Inc.

5,841 -
RFQ
MF-LR600

Datasheet

Strap Multifuse®, MF-LR Bulk Active Polymeric 10V 6 A 11.7 A 100 A 5 s 7 mOhms 19 mOhms - -40°C ~ 85°C - - - User Defined 0.984" L x 0.587" W (25.00mm x 14.90mm) - 0.039" (1.00mm) -
1206L020/30YR-A

1206L020/30YR-A

PTC 30V POLYFUSE SURF MOUNT 1206

Littelfuse Inc.

4,332 -
RFQ
1206L020/30YR-A

Datasheet

1206 (3216 Metric), Concave POLY-FUSE®, 1206L Tape & Reel (TR) Active Polymeric 30V 200 mA 420 mA 100 A 100 ms 650 mOhms 2.6 Ohms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.065" W (3.20mm x 1.65mm) - 0.039" (1.00mm) -
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