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
BK30-160-SI

BK30-160-SI

PTC RESET FUSE 30V 1.6A RAD

YAGEO

1,000 -
RFQ
BK30-160-SI

Datasheet

Radial, Disc BK30 Bulk Active Polymeric 30V 1.6 A 3.2 A 40 A 8 s 45 mOhms 140 mOhms - -40°C ~ 85°C - - - Through Hole 0.374" L x 0.122" W (9.50mm x 3.10mm) 0.650" (16.50mm) - 0.201" (5.10mm)
BK30-110-SZ

BK30-110-SZ

PTC RESET FUSE 30V 1.1A RAD

YAGEO

467 -
RFQ
BK30-110-SZ

Datasheet

Radial, Disc BK30 Bulk Active Polymeric 30V 1.1 A 2.2 A 40 A 6.6 s 70 mOhms 200 mOhms - -40°C ~ 85°C - - - Through Hole 0.291" L x 0.122" W (7.40mm x 3.10mm) 0.559" (14.20mm) - 0.201" (5.10mm)
BK60-040-DI

BK60-040-DI

PTC RESET FUSE 60V 400MA RAD

YAGEO

995 -
RFQ
BK60-040-DI

Datasheet

Radial, Disc BK60 Bulk Active Polymeric 60V 400 mA 800 mA 40 A 3.8 s 500 mOhms 1.1 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.559" (14.20mm) - 0.201" (5.10mm)
BK60-090-DI

BK60-090-DI

PTC RESET FUSE 60V 900MA RAD

YAGEO

500 -
RFQ
BK60-090-DI

Datasheet

Radial, Disc BK60 Bulk Active Polymeric 60V 900 mA 1.8 A 40 A 7.2 s 200 mOhms 450 mOhms - -40°C ~ 85°C - - - Through Hole 0.441" Dia x 0.122" T (11.20mm x 3.10mm) 0.709" (18.00mm) - 0.201" (5.10mm)
BK30-250-SI

BK30-250-SI

PTC RESET FUSE 30V 2.5A RAD

YAGEO

500 -
RFQ
BK30-250-SI

Datasheet

Radial, Disc BK30 Bulk Active Polymeric 30V 2.5 A 5 A 40 A 10.3 s 27 mOhms 80 mOhms - -40°C ~ 85°C - - - Through Hole 0.520" L x 0.122" W (13.20mm x 3.10mm) 0.807" (20.50mm) - 0.201" (5.10mm)
BK16-600-SZ

BK16-600-SZ

PTC RESET FUSE 16V 6A RAD

YAGEO

497 -
RFQ
BK16-600-SZ

Datasheet

Radial, Disc BK16 Bulk Active Polymeric 16V 6 A 12 A 100 A 3.3 s 9 mOhms 25 mOhms - -40°C ~ 85°C - - - Through Hole 0.531" L x 0.122" W (13.50mm x 3.10mm) 0.772" (19.60mm) - 0.201" (5.10mm)
BK250-145-SZ

BK250-145-SZ

PTC RESET FUSE 250V 145MA RAD

YAGEO

930 -
RFQ
BK250-145-SZ

Datasheet

Radial, Disc BK250 Bulk Active Polymeric 250V 145 mA 290 mA 3 A 15 s 3.5 Ohms 6.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.295" L x 0.181" W (7.50mm x 4.60mm) 0.591" (15.00mm) - 0.201" (5.10mm)
BK16-300-SZ

BK16-300-SZ

PTC RESET FUSE 16V 3A RAD

YAGEO

969 -
RFQ
BK16-300-SZ

Datasheet

Radial, Disc BK16 Bulk Active Polymeric 16V 3 A 6 A 100 A 1 s 20 mOhms 72 mOhms - -40°C ~ 85°C - - - Through Hole 0.354" L x 0.122" W (9.00mm x 3.10mm) 0.661" (16.80mm) - 0.201" (5.10mm)
BK60-075-DI

BK60-075-DI

PTC RESET FUSE 60V 750MA RAD

YAGEO

500 -
RFQ
BK60-075-DI

Datasheet

Radial, Disc BK60 Bulk Active Polymeric 60V 750 mA 1.5 A 40 A 6.3 s 250 mOhms 550 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" Dia x 0.122" T (10.20mm x 3.10mm) 0.661" (16.80mm) - 0.201" (5.10mm)
PTR016V0600-BK1

PTR016V0600-BK1

PTC RESET FUSE 16V 6A RADIAL

Eaton - Electronics Division

1,000 -
RFQ
PTR016V0600-BK1

Datasheet

Radial, Disc PTR016V Bulk Active Polymeric 16V 6 A 10.2 A 100 A 3.3 s 6 mOhms 28 mOhms - -40°C ~ 85°C - - - Through Hole 0.421" L x 0.122" W (10.70mm x 3.10mm) 0.748" (19.00mm) - 0.197" (5.00mm)
PTR060V0010-BK

PTR060V0010-BK

PTC RESET FUSE 60V 100MA RADIAL

Eaton - Electronics Division

946 -
RFQ
PTR060V0010-BK

Datasheet

Radial, Disc PTR060V Bulk Active Polymeric 60V 100 mA 200 mA 40 A 4 s 2.5 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.500" (12.70mm) - 0.197" (5.00mm)
BK60-110-DZ

BK60-110-DZ

PTC RESET FUSE 60V 1.1A RAD

YAGEO

495 -
RFQ
BK60-110-DZ

Datasheet

Radial, Disc BK60 Bulk Active Polymeric 60V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 330 mOhms - -40°C ~ 85°C - - - Through Hole 0.472" Dia x 0.122" T (12.00mm x 3.10mm) 0.709" (18.00mm) - 0.201" (5.10mm)
BK16-500-SZ

BK16-500-SZ

PTC RESET FUSE 16V 5A RAD

YAGEO

449 -
RFQ
BK16-500-SZ

Datasheet

Radial, Disc BK16 Bulk Active Polymeric 16V 5 A 10 A 100 A 2 s 14 mOhms 30 mOhms - -40°C ~ 85°C - - - Through Hole 0.421" L x 0.122" W (10.70mm x 3.10mm) 0.772" (19.60mm) - 0.201" (5.10mm)
BK60-135-DZ

BK60-135-DZ

PTC RESET FUSE 60V 1.35A RAD

YAGEO

451 -
RFQ
BK60-135-DZ

Datasheet

Radial, Disc BK60 Bulk Active Polymeric 60V 1.35 A 2.7 A 40 A 9.6 s 120 mOhms 270 mOhms - -40°C ~ 85°C - - - Through Hole 0.571" Dia x 0.177" T (14.50mm x 4.50mm) 0.772" (19.60mm) - 0.201" (5.10mm)
BK30-400-SZ

BK30-400-SZ

PTC RESET FUSE 30V 4A RAD

YAGEO

440 -
RFQ
BK30-400-SZ

Datasheet

Radial, Disc BK30 Bulk Active Polymeric 30V 4 A 8 A 40 A 12.7 s 10 mOhms 60 mOhms - -40°C ~ 85°C - - - Through Hole 0.551" L x 0.122" W (14.00mm x 3.10mm) 0.929" (23.60mm) - 0.201" (5.10mm)
BK30-200-SI

BK30-200-SI

PTC RESET FUSE 30V 2A RAD

YAGEO

654 -
RFQ
BK30-200-SI

Datasheet

Radial, Disc BK30 Bulk Active Polymeric 30V 2 A 4 A 40 A 9.8 s 40 mOhms 100 mOhms - -40°C ~ 85°C - - - Through Hole 0.433" L x 0.122" W (11.00mm x 3.10mm) 0.732" (18.60mm) - 0.201" (5.10mm)
PTR060V0020-BK

PTR060V0020-BK

PTC RESET FUSE 60V 200MA RADIAL

Eaton - Electronics Division

6,748 -
RFQ
PTR060V0020-BK

Datasheet

Radial, Disc PTR060V Bulk Active Polymeric 60V 200 mA 400 mA 40 A 2.2 s 1.83 Ohms 4.4 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.480" (12.20mm) - 0.197" (5.00mm)
PFRA.010

PFRA.010

PTC RESET FUSE 60V 100MA RADIAL

SCHURTER Inc.

1,000 -
RFQ
PFRA.010

Datasheet

Radial, Disc PFRA Bulk Active Polymeric 60V 100 mA 200 mA 40 A 4 s 2.5 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
PFRA.020

PFRA.020

PTC RESET FUSE 60V 200MA RADIAL

SCHURTER Inc.

661 -
RFQ
PFRA.020

Datasheet

Radial, Disc PFRA Bulk Active Polymeric 60V 200 mA 400 mA 40 A 2.2 s 1.5 Ohms 4.4 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
PTR060V0135-BK

PTR060V0135-BK

PTC RESET FUSE 60V 1.35A RADIAL

Eaton - Electronics Division

495 -
RFQ
PTR060V0135-BK

Datasheet

Radial, Disc PTR060V Bulk Active Polymeric 60V 1.35 A 2.7 A 40 A 9.6 s 120 mOhms 300 mOhms - -40°C ~ 85°C - - - Through Hole 0.571" Dia x 0.118" T (14.50mm x 3.00mm) 0.772" (19.60mm) - 0.197" (5.00mm)
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