PTC Resettable Fuses

Results: 59
Packaging
BagBulkCut Tape (CT)StripTape & Reel (TR)
Product Status
ActiveObsolete
Voltage - Max
60V (250V Int)100V (250V Int)
Current - Hold (Ih) (Max)
55 mA80 mA90 mA110 mA120 mA130 mA145 mA180 mA183 mA184 mA
Current - Trip (It)
160 mA170 mA180 mA220 mA240 mA260 mA290 mA650 mA685 mA1 A
Current - Max
3 A10 A
Time to Trip
750 ms900 ms1 s1.2 s1.3 s1.5 s1.8 s2 s2.5 s3 s3.5 s4 s5 s
Resistance - Initial (Ri) (Min)
800 mOhms1.2 Ohms3 Ohms3.5 Ohms4 Ohms5 Ohms5.4 Ohms6 Ohms7 Ohms8 Ohms8.5 Ohms14 Ohms15 Ohms
Resistance - Post Trip (R1) (Max)
3.1 Ohms3.4 Ohms4 Ohms12 Ohms14 Ohms16 Ohms18 Ohms33 Ohms35 Ohms
Operating Temperature
-40°C ~ 85°C0°C ~ 85°C
Size / Dimension
0.181" L x 0.181" W (4.60mm x 4.60mm)0.189" Dia x 0.150" T (4.80mm x 3.80mm)0.209" Dia x 0.150" T (5.30mm x 3.80mm)0.228" Dia x 0.181" T (5.80mm x 4.60mm)0.228" Dia x 0.354" T (5.80mm x 9.00mm)0.236" L x 0.150" W (6.00mm x 3.80mm)0.256" Dia x 0.118" T (6.50mm x 3.00mm)0.256" L x 0.181" W (6.50mm x 4.60mm)0.295" Dia x 0.150" T (7.50mm x 3.80mm)0.295" Dia x 0.161" T (7.50mm x 4.10mm)0.303" Dia x 0.181" T (7.70mm x 4.60mm)0.354" Dia x 0.150" T (9.00mm x 3.80mm)-
Height - Seated (Max)
0.256" (6.50mm)0.366" (9.30mm)0.370" (9.40mm)0.374" (9.50mm)0.390" (9.90mm)0.394" (10.00mm)0.413" (10.50mm)0.433" (11.00mm)0.453" (11.50mm)0.472" (12.00mm)0.748" (19.00mm)-
Lead Spacing
0.197" (5.00mm)0.200" (5.08mm)-
Stocking Options
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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
Ratings
Mounting Type
Package / Case
Size / Dimension
Height - Seated (Max)
Thickness (Max)
Lead Spacing
TR(F)250-080U
TRF250-080U
PTC RESET FUSE 60V 80MA RADIAL
Littelfuse Inc.
5,949
In Stock
1 : ¥5.58000
Bag
Bag
Active
Polymeric
60V (250V Int)
80 mA
160 mA
3 A
4 s
14 Ohms
33 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.189" Dia x 0.150" T (4.80mm x 3.80mm)
0.366" (9.30mm)
-
0.197" (5.00mm)
TRF250-18x
TRF250-183
PTC RESET FUSE 100V 183MA RADIAL
Littelfuse Inc.
36,281
In Stock
1 : ¥4.68000
Bulk
Bulk
Active
Polymeric
100V (250V Int)
183 mA
685 mA
10 A
1.8 s
800 mOhms
3.4 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.295" Dia x 0.161" T (7.50mm x 4.10mm)
0.413" (10.50mm)
-
0.197" (5.00mm)
TRF250-080T
TRF250-080T
PTC RESET FUSE 60V 80MA RADIAL
Littelfuse Inc.
2,013
In Stock
1 : ¥5.91000
Bag
Bag
Active
Polymeric
60V (250V Int)
80 mA
160 mA
3 A
4 s
15 Ohms
33 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.228" Dia x 0.181" T (5.80mm x 4.60mm)
0.390" (9.90mm)
-
0.197" (5.00mm)
TRF250-145
TRF250-145
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
1,968
In Stock
1 : ¥5.91000
Bag
Bag
Active
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
5 s
3 Ohms
14 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
TRF250-120T-RA-B-0.5
TRF250-120T-RA-B-0.5
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
20,027
In Stock
1 : ¥6.57000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
1.2 s
7 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
PolySwitch_TRF250
TRF250-120-2
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,500
In Stock
1,500 : ¥2.69090
Tape & Reel (TR)
Tape & Reel (TR)
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
2.5 s
4 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
TR(F)250-120U
TRF250-120U-2
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,635
In Stock
1 : ¥6.32000
Cut Tape (CT)
1,500 : ¥2.77382
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
1 s
6 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.236" L x 0.150" W (6.00mm x 3.80mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
TRF250-180-2
TRF250-180-2
PTC RESET FUSE 100V 180MA RADIAL
Littelfuse Inc.
2,810
In Stock
1 : ¥6.73000
Cut Tape (CT)
1,500 : ¥2.66709
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Active
Polymeric
100V (250V Int)
180 mA
650 mA
10 A
2 s
800 mOhms
4 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.354" Dia x 0.150" T (9.00mm x 3.80mm)
0.472" (12.00mm)
-
0.200" (5.08mm)
PolySwitch_TRF250
TRF250-120-B-0.5
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,387
In Stock
1 : ¥6.98000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
2.5 s
4 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.236" L x 0.150" W (6.00mm x 3.80mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
PolySwitch_TRF250
TRF250-120T-R2-B-0.5
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
8,426
In Stock
1 : ¥5.01000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
750 ms
8 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
1,500
In Stock
1 : ¥5.58000
Strip
Strip
Active
Polymeric
60V (250V Int)
80 mA
160 mA
3 A
4 s
15 Ohms
33 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.228" Dia x 0.354" T (5.80mm x 9.00mm)
0.748" (19.00mm)
-
0.197" (5.00mm)
TRF250-18x
TRF250-183-2
PTC RESET FUSE 100V 183MA RADIAL
Littelfuse Inc.
1,496
In Stock
1 : ¥5.99000
Cut Tape (CT)
1,500 : ¥2.57175
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Active
Polymeric
100V (250V Int)
183 mA
685 mA
10 A
1.8 s
800 mOhms
3.4 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.295" Dia x 0.161" T (7.50mm x 4.10mm)
0.413" (10.50mm)
-
0.197" (5.00mm)
TRF250-110U-B-0.5-2
TRF250-110U-B-0.5-2
PTC RESET FUSE 60V 110MA RADIAL
Littelfuse Inc.
1,340
In Stock
1 : ¥6.40000
Cut Tape (CT)
1,500 : ¥2.74415
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Active
Polymeric
60V (250V Int)
110 mA
220 mA
3 A
750 ms
5 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.209" Dia x 0.150" T (5.30mm x 3.80mm)
0.370" (9.40mm)
-
0.197" (5.00mm)
TRF250-183S
TRF250-183S
PTC RESET FUSE 100V 183MA RADIAL
Littelfuse Inc.
1,210
In Stock
1 : ¥6.65000
Bag
Bag
Active
Polymeric
100V (250V Int)
183 mA
685 mA
10 A
1.8 s
800 mOhms
3.4 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.295" Dia x 0.150" T (7.50mm x 3.80mm)
0.374" (9.50mm)
-
0.197" (5.00mm)
TRF250-183U
TRF250-120UA
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,795
In Stock
1 : ¥6.73000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
1 s
6 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.236" L x 0.150" W (6.00mm x 3.80mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
TRF250-145US-B-0.5
TRF250-145US
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
1,523
In Stock
1 : ¥7.39000
Bag
Bag
Active
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
4 s
3.5 Ohms
14 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.236" L x 0.150" W (6.00mm x 3.80mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
TRF250-145T-2
TRF250-145T-2
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
1,496
In Stock
1 : ¥7.64000
Cut Tape (CT)
1,500 : ¥3.27467
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Active
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
1.5 s
5.4 Ohms
14 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.181" L x 0.181" W (4.60mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
TR(F)250-120U
TRF250-120T-RC-B-0.5
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,500
In Stock
1 : ¥7.72000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
260 mA
3 A
3 s
5.4 Ohms
14 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
PTC RESET FUSE 60V 145MA RADIAL
TRF250-145-RA-B-0.5
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
9,500
In Stock
1 : ¥7.80000
Bag
Bag
Active
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
2.5 s
3 Ohms
12 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
TRF250-145T-B-0.5
TRF250-145T-B-0.5
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
1,970
In Stock
1 : ¥8.46000
Bag
Bag
Active
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
2.5 s
5.4 Ohms
14 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
TRF250-145US-B-0.5
TRF250-145US-B-0.5
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
1,890
In Stock
1 : ¥6.73000
Bag
Bag
Active
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
4 s
3.5 Ohms
14 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.236" L x 0.150" W (6.00mm x 3.80mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
TR(F)250-120U
TRF250-120T-RF-B-0.5
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
6,560
In Stock
1 : ¥7.31000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
900 ms
6 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.197" (5.00mm)
TRF250-120UT
TRF250-120UT
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,960
In Stock
1 : ¥7.39000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
1.5 s
7 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.236" L x 0.150" W (6.00mm x 3.80mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
TRF250-120S-B-0.5
TRF250-120S-B-0.5
PTC RESET FUSE 60V 120MA RADIAL
Littelfuse Inc.
1,955
In Stock
1 : ¥8.05000
Bag
Bag
Active
Polymeric
60V (250V Int)
120 mA
240 mA
3 A
2.5 s
4 Ohms
16 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.394" (10.00mm)
-
0.197" (5.00mm)
TRF250-183U
TRF250-145-RA-B0.5-2
PTC RESET FUSE 60V 145MA RADIAL
Littelfuse Inc.
2,824
In Stock
7,500 : ¥2.77033
Tape & Reel (TR)
Tape & Reel (TR)
Obsolete
Polymeric
60V (250V Int)
145 mA
290 mA
3 A
2.5 s
3 Ohms
12 Ohms
-40°C ~ 85°C
-
Through Hole
Radial, Disc
0.256" L x 0.181" W (6.50mm x 4.60mm)
0.433" (11.00mm)
-
0.200" (5.08mm)
Showing
of 59

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.