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287 Series, ATOF® Blade Fuses 32V

Littelfuse Inc.

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Datasheet

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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse.
Ratings
Part Number Current Rating
(A)
Housing
Material Color
Typ. Voltage Drop
(mV)
Cold Resistance
(m)
I2t
(A²s)
0997002_ 2 171 55.60 2.8
0997003_ 3 153 33.75 9.4
0997004_ 4 121 23.48 17
0997005_ 5 129 17.75 25
099707.5_ 7.5 135 10.85 68
0997010_ 10 108 7.42 93
0997015_ 15 98 4.58 270
0997020_ 20 96 3.21 380
0997025_ 25 86 2.36 625
0997030_ 30 87 1.85 1130
ATOF® Blade Fuses Rated 32V
Developed by Littelfuse for the automotive industry, the ATOF® fuse has become the original
equipment circuit protection standard for foreign and domestic automobiles and trucks.
Readily identifiable and easily replaced, this fuse can be specified for a variety of low voltage
electronic applications.
Blade Fuses
ATO® Ag (Silver plated)
Blade Fuses
ATOF® Blade Fuses
Ordering Information
Part Number Package Size
0287xxx.PXCN 2000
0287xxx.U 500
0287xxx.H 100
0287xxx.L 50
ATO® Ag Fuse
0287xxx.PXS 2000
Dimensions
Dimensions in mm
Temperature Rerating Curve
Time-Current
Characteristic Curves
Specification ATOF® ATO Ag
(Tin Plated) (Silver Plated)
Voltage Rating: 32 VDC 32 VDC
Interrupting Rating: 1000A @ 32 VDC 1000A @ 32 VDC
*Component Level Temperature Range: -40˚C to +105˚C -40˚C to +125˚C
**System Level Temperature Range: -40˚C to +85˚C -40˚C to +105˚C
105°C and 85°C are typical system level temperature requirements.
Terminals: Sn plated zinc alloy Ag plated zinc alloy
Housing Material: PA66 PA66
Complies with: SAE J1284,ISO 8820-3 SAE J1284,ISO 8820-3
UL Listed: File AU1410 File AU1410
CSA Certified: File No. 29862 File No. 29862
Ratings
Part Number Current Rating
(A)
Housing
Material Color
Typ. Voltage Drop
(mV)
Cold Resistance
(m)
I2t
(A2s)
0287001._ 1 176 123 0.4
0287002._ 2 141 53.5 1.4
0287003._ 3 137 31.1 7.4
0287004._ 4 136 22.8 14
0287005._ 5 128 17.85 26
028707.5_ 7.5 116 10.91 60
0287010._ 10 109 7.70 115
0287015._ 15 102 4.80 340
0287020._ 20 98 3.38 520
0287025._ 25 92 2.52 1080
0287030._ 30 84 1.97 1510
0287035._ 35 87 1.61 2280
0287040._ 40 96 1.44 3310
0287900._ SHUNT
Time-Current Characteristics
% of Rating Current
Rating
Opening Time
Min / Max (s)
100 35A & 40A 360,000 s / –
110 1A-30A 360,000 s / –
135 1A & 2A
3A-40A
350 ms / 600 s
0.750 s / 600 s
160 1A-40A 250 ms / 50 s
200 1A & 2A
3A-40A
100 ms / 5.0 s
0.150 s / 5.0 s
350 1A & 2A
3A-40A
20 ms / 500 ms
80 ms / 500 ms
600 1A-30A
35A & 40A
– / 100 ms
– / 150 ms
*Component Level Temperature = the maximum ambient temperature that a
single fuse will survive. This does not factor-in the heat from a populated
fuse box, but does include the heat from the current load with the proper
rerating. **System Level Temperature represents the ambient temperature of
the fuse box at a location within the vehicle. The temperature within a
populated fuse box (in a given location) will be higher. The limiting factor is
the plating. Sn-plating’s temperature limit is 130°C, and Ag-plating allows up
to 150°C at the terminal interface.

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