PTC Resettable Fuses

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Mfr Part #
Quantity Available
Price
Series
Package
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)
Operating Temperature
Grade
Qualification
Ratings
Mounting Type
Package / Case
Size / Dimension
Height - Seated (Max)
Thickness (Max)
Lead Spacing
AHEF_Straight-Leads
AHEF500
PTC RESET FUSE 32V 5A RADIAL
Littelfuse Inc.
9,434
In Stock
1 : $2.08000
Bag
Bag
Active
Polymeric
32V
5 A
10 A
100 A
9 s
15 mOhms
40 mOhms
-40°C ~ 125°C
Automotive
AEC-Q200
-
Through Hole
Radial, Disc
0.551" L x 0.150" W (14.00mm x 3.80mm)
0.949" (24.10mm)
-
0.199" (5.05mm)
AHEF_Straight-Leads
AHEF300
PTC RESET FUSE 32V 3A RADIAL
Littelfuse Inc.
7,417
In Stock
1 : $1.45000
Bag
Bag
Active
Polymeric
32V
3 A
6 A
100 A
5 s
35 mOhms
110 mOhms
-40°C ~ 125°C
Automotive
AEC-Q200
-
Through Hole
Radial, Disc
0.402" L x 0.150" W (10.20mm x 3.80mm)
0.610" (15.50mm)
-
0.200" (5.08mm)
AHEF_Straight-Leads
AHEF750
PTC RESET FUSE 32V 7.5A RADIAL
Littelfuse Inc.
3,128
In Stock
1 : $2.61000
Bag
Bag
Active
Polymeric
32V
7.5 A
15 A
100 A
13 s
7.4 mOhms
23 mOhms
-40°C ~ 125°C
Automotive
AEC-Q200
-
Through Hole
Radial, Disc
0.830" L x 0.150" W (21.10mm x 3.80mm)
0.980" (24.90mm)
-
0.400" (10.15mm)
AHEF_Straight-Leads
AHEF1000
PTC RESET FUSE 32V 10A RADIAL
Littelfuse Inc.
2,027
In Stock
1 : $3.23000
Bag
Bag
Active
Polymeric
32V
10 A
20 A
100 A
15 s
6 mOhms
16 mOhms
-40°C ~ 125°C
Automotive
AEC-Q200
-
Through Hole
Radial, Disc
0.925" L x 0.157" W (23.50mm x 4.00mm)
1.098" (27.90mm)
-
0.400" (10.15mm)
AHEF100
AHEF100
PTC RESET FUSE 32V 1A RADIAL
Littelfuse Inc.
405
In Stock
1 : $1.27000
Bag
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
Radial, Disc
0.382" Dia x 0.118" T (9.70mm x 3.00mm)
0.535" (13.60mm)
-
0.199" (5.05mm)
AHEF
AHEF050
PTC RESET FUSE 32V 500MA RADIAL
Littelfuse Inc.
739
In Stock
1 : $1.27000
Bag
Bag
Active
Polymeric
32V
500 mA
1 A
100 A
3 s
350 mOhms
1.1 Ohms
-40°C ~ 125°C
Automotive
AEC-Q200
-
Through Hole
Radial, Disc
0.291" Dia x 0.130" T (7.40mm x 3.30mm)
0.500" (12.70mm)
-
0.199" (5.05mm)
AHEF070
AHEF070
PTC RESET FUSE 32V 700MA RADIAL
Littelfuse Inc.
433
In Stock
1 : $1.27000
Bag
Bag
Active
Polymeric
32V
700 mA
1.4 A
100 A
3.2 s
230 mOhms
800 mOhms
-40°C ~ 125°C
Automotive
AEC-Q200
-
Through Hole
Radial, Disc
0.272" L x 0.118" W (6.90mm x 3.00mm)
0.425" (10.80mm)
-
0.118" (3.00mm)
Showing
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PTC Resettable Fuses

PTC Resettable Fuses are designed to stop current flow when it exceeds a certain limit (overcurrent protection). The Fuses work by increasing its resistance as its temperature rises due to the current increase. The trip current ranges from 14 mA to 50 A with the Time to trip ranging from 8 ms to 90 s. PTC = Positive Temperature Coefficient.