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
60R075XPR

60R075XPR

PTC RESET FUSE 60V 750MA RADIAL

Littelfuse Inc.

5,451 -
RFQ
60R075XPR

Datasheet

Radial, Disc POLY-FUSE®, 60R Cut Tape (CT) Active Polymeric 60V 750 mA 1.5 A 40 A 6.3 s 250 mOhms 600 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" Dia x 0.122" T (10.20mm x 3.10mm) 0.591" (15.00mm) - 0.201" (5.10mm)
MF-USML500/12-2

MF-USML500/12-2

PTC RESET FUSE 12V 5A 1210

Bourns Inc.

3,121 -
RFQ
MF-USML500/12-2

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML/X 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) - 0.047" (1.20mm) -
60R110XMR

60R110XMR

PTC RESET FUSE 60V 1.1A RADIAL

Littelfuse Inc.

37,114 -
RFQ
60R110XMR

Datasheet

Radial, Disc POLY-FUSE®, 60R Cut Tape (CT) Active Polymeric 60V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C - - - Through Hole 0.512" Dia x 0.122" T (13.00mm x 3.10mm) 0.717" (18.20mm) - 0.201" (5.10mm)
B59990C0080A070

B59990C0080A070

PTC RESET FUSE 80V 30MA RADIAL

EPCOS - TDK Electronics

6,932 -
RFQ
B59990C0080A070

Datasheet

Radial, Disc B59990 Bulk Active Ceramic 80V 30 mA 60 mA 700 mA - - - 55 Ohms -40°C ~ 85°C - - - Through Hole 0.157" Dia x 0.138" T (4.00mm x 3.50mm) 0.295" (7.50mm) - 0.197" (5.00mm)
B59995C0120A070

B59995C0120A070

PTC RESET FUSE 30V 120MA RADIAL

EPCOS - TDK Electronics

6,057 -
RFQ
B59995C0120A070

Datasheet

Radial, Disc B59995 Bulk Active Ceramic 30V 120 mA 240 mA 700 mA - - - 13 Ohms -40°C ~ 85°C - - - Through Hole 0.157" Dia x 0.138" T (4.00mm x 3.50mm) 0.295" (7.50mm) - 0.197" (5.00mm)
MF-NSMF020X-2

MF-NSMF020X-2

PTC RESET FUSE 30V 200MA 1206

Bourns Inc.

33,736 -
RFQ
MF-NSMF020X-2

Datasheet

1206 (3216 Metric), Concave Multifuse® freeXpansionTM, MF-NSMF Tape & Reel (TR) Active Polymeric 30V 200 mA 400 mA 60 A 600 ms 600 mOhms 3.3 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.60mm) - 0.033" (0.85mm) -
2920L200DR

2920L200DR

PTC RESET FUSE 15V 2A 2920

Littelfuse Inc.

10,335 -
RFQ
2920L200DR

Datasheet

2920 (7351 Metric), Concave POLY-FUSE®, 2920L Tape & Reel (TR) Active Polymeric 15V 2 A 4 A 40 A 5 s 50 mOhms 125 mOhms - -40°C ~ 85°C - - - Surface Mount 0.289" L x 0.202" W (7.35mm x 5.12mm) - 0.049" (1.25mm) -
2016L150DR

2016L150DR

PTC RESET FUSE 15V 1.5A 2016

Littelfuse Inc.

9,624 -
RFQ
2016L150DR

Datasheet

2016 (5041 Metric), Concave POLY-FUSE®, 2016L Tape & Reel (TR) Active Polymeric 15V 1.5 A 3 A 40 A 1 s 70 mOhms 180 mOhms - -40°C ~ 85°C - - - Surface Mount 0.200" L x 0.160" W (5.08mm x 4.07mm) - 0.061" (1.55mm) -
AHS120F/33-2

AHS120F/33-2

PPTC-SMD-PSW

Littelfuse Inc.

7,807 -
RFQ
AHS120F/33-2

Datasheet

2-SMD PolySwitch® AHS Tape & Reel (TR) Active Polymeric 33V 1.2 A 2.3 A 20 A 2 s 150 mOhms 340 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) 0.118" (3.00mm) - -
MF-NSML400/6-2

MF-NSML400/6-2

PTC RESET FUSE 6V 4A 1206

Bourns Inc.

7,731 -
RFQ
MF-NSML400/6-2

Datasheet

1206 (3216 Metric), Concave Multifuse®, MF-NSML/X Tape & Reel (TR) Active Polymeric 6V 4 A 8 A 50 A 5 s 2 mOhms 18 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.055" (1.40mm) -
MF-NSMF050/16X-2

MF-NSMF050/16X-2

FUSE RESET PPTC 1206 0.50A/16V

Bourns Inc.

7,724 -
RFQ
MF-NSMF050/16X-2

Datasheet

1206 (3216 Metric), Concave Multifuse® freeXpansionTM, MF-NSMF Tape & Reel (TR) Active Polymeric 16V 500 mA 1 A 100 A 100 ms 150 mOhms 750 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.60mm) - 0.033" (0.85mm) -
MF-NSMF025/30X-2

MF-NSMF025/30X-2

FUSE RESET PPTC 1206 0.25A/30V

Bourns Inc.

6,994 -
RFQ
MF-NSMF025/30X-2

Datasheet

1206 (3216 Metric), Concave Multifuse® freeXpansionTM, MF-NSMF Tape & Reel (TR) Active Polymeric 30V 250 mA 500 mA 60 A 50 ms 450 mOhms 2.3 Ohms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.60mm) - 0.033" (0.85mm) -
MF-NSMF110/16X-2

MF-NSMF110/16X-2

FUSE RESET PPTC 1206 1.1A/16V

Bourns Inc.

5,368 -
RFQ
MF-NSMF110/16X-2

Datasheet

1206 (3216 Metric), Concave Multifuse® freeXpansionTM, MF-NSMF Tape & Reel (TR) Active Polymeric 16V 1.1 A 2.2 A 100 A 100 ms 60 mOhms 230 mOhms - -40°C ~ 85°C - - - Surface Mount 0.126" L x 0.063" W (3.20mm x 1.60mm) - 0.043" (1.10mm) -
LVR033S-2

LVR033S-2

PTC RESET FUSE 240V 330MA RADIAL

Littelfuse Inc.

5,291 -
RFQ
LVR033S-2

Datasheet

Radial, Disc PolySwitch®, LVR Tape & Reel (TR) Active Polymeric 240V (265V Int) 330 mA 740 mA 4.5 A 21 s 770 mOhms 2.6 Ohms - -20°C ~ 85°C - - - Through Hole 0.449" L x 0.150" W (11.40mm x 3.80mm) 0.650" (16.50mm) - 0.200" (5.08mm)
60R090XPR

60R090XPR

PTC RESET FUSE 60V 900MA RADIAL

Littelfuse Inc.

3,108 -
RFQ
60R090XPR

Datasheet

Radial, Disc POLY-FUSE®, 60R Cut Tape (CT) Active Polymeric 60V 900 mA 1.8 A 40 A 7.2 s 200 mOhms 470 mOhms - -40°C ~ 85°C - - - Through Hole 0.441" Dia x 0.122" T (11.20mm x 3.10mm) 0.622" (15.80mm) - 0.201" (5.10mm)
MF-MSHT035KX-2

MF-MSHT035KX-2

1812 HIGH TEMP SMD POLYMER PTC 0

Bourns Inc.

4,474 -
RFQ
MF-MSHT035KX-2

Datasheet

1812 (4532 Metric), Concave Multifuse® MF-MSHT Tape & Reel (TR) Active Polymeric 36V 350 mA 1.75 A 40 A 100 ms 300 mOhms 2.6 Ohms - -40°C ~ 125°C Automotive AEC-Q200 - Surface Mount 0.181" L x 0.128" W (4.60mm x 3.24mm) - 0.033" (0.85mm) -
0ZRE0055FF2A

0ZRE0055FF2A

PTC RESET FUSE 240V 550MA RADIAL

Bel Fuse Inc.

3,970 -
RFQ
0ZRE0055FF2A

Datasheet

Radial, Disc 0ZRE Tape & Reel (TR) Active Polymeric 240V 550 mA 1.25 A 7 A 26 s 450 mOhms 1.45 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.551" L x 0.161" W (14.00mm x 4.10mm) 0.854" (21.70mm) - 0.201" (5.10mm)
AHEF100

AHEF100

PTC RESET FUSE 32V 1A RADIAL

Littelfuse Inc.

2,809 -
RFQ
AHEF100

Datasheet

Radial, Disc PolySwitch®, AHEF Bag Active Polymeric 32V 1 A 1.9 A 100 A 6.2 s 150 mOhms 430 mOhms - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole 0.382" Dia x 0.118" T (9.70mm x 3.00mm) 0.535" (13.60mm) - 0.199" (5.05mm)
CMF-RL25U-0

CMF-RL25U-0

PTC RESET FUSE 220V 60MA RADIAL

Bourns Inc.

2,500 -
RFQ
CMF-RL25U-0

Datasheet

Radial, Disc CMF-RL Bulk Active Ceramic 220V (600V Int) 60 mA 150 mA 900 mA 250 ms - - 25 Ohms -40°C ~ 125°C - - - Through Hole 0.205" L x 0.138" W (5.20mm x 3.50mm) 0.205" (5.20mm) - 0.197" (5.00mm)
2920L075/72MR

2920L075/72MR

2920L

Littelfuse Inc.

2,236 -
RFQ
2920L075/72MR

Datasheet

2920 (7351 Metric), Concave POLY-FUSE®, 2920L Tape & Reel (TR) Active - 72V 750 mA 1.5 A 10 A 300 ms 240 mOhms 950 mOhms - -40°C ~ 85°C - - - Surface Mount 0.290" L x 0.202" W (7.36mm x 5.12mm) - 0.071" (1.80mm) -
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