Blade Fuses
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.
Specification ATOF ATO Ag
(Tin Plated) (Silver Plated)
Voltage Rating: 32 VDC 32 VDC
ATOF Blade Fuses
Interrupting Rating: 1000A @ 32 VDC 1000A @ 32 VDC
*Component Level Temperature Range: -40C to +105C -40C to +125C
**System Level Temperature Range: -40C to +85C -40C to +105C
105C and 85C 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
ATO Ag (Silver plated)
Blade Fuses
Time-Current Characteristics
Time-Current
Current Opening Time
Characteristic Curves
Ordering Information
% of Rating
Rating Min / Max (s)
Part Number Package Size
100 35A & 40A 360,000 s /
ATOF (Tin Plated)
110 1A-30A 360,000 s /
0287xxx.PXCN 2000
1A & 2A 350 ms / 600 s
135
3A-40A 0.750 s / 600 s
0287xxx.U 500
160 1A-40A 250 ms / 50 s
0287xxx.H 100
1A & 2A 100 ms / 5.0 s
200
0287xxx.L 50
3A-40A 0.150 s / 5.0 s
Ratings
ATOF Ag (Silver Plated)
1A & 2A 20 ms / 500 ms
350
3A-40A 80 ms / 500 ms
2
0287xxx.PXS 2000
Current Rating Housing Typ. Voltage Drop Cold Resistance I t
Part Number
1A-30A / 100 ms
(A) Material Color (mV) (m) (As)
600
35A & 40A / 150 ms
Ratings
0997002_ 2 171 55.60 2.8
2
Current Rating Housing Typ. Voltage Drop Cold Resistance I t
0997003_ 3 153 33.75 9.4
Part Number
2
(A) Material Color (mV) (m) (A s)
0997004_ 4 121 23.48 17
0287001._ 1 176 123 0.4
0997005_ 5 129 17.75 25
0287002._ 2 141 53.5 1.4
099707.5_ 7.5 135 10.85 68
0287003._ 3 137 31.1 7.4
0997010_ 10 108 7.42 93
0287004._ 4 136 22.8 14
0997015_ 15 98 4.58 270 0287005._ 5 128 17.85 26
028707.5_ 7.5 116 10.91 60
0997020_ 20 96 3.21 380
0287010._ 10 109 7.70 115
0997025_ 25 86 2.36 625
0287015._ 15 102 4.80 340
0997030_ 30 87 1.85 1130
0287020._ 20 98 3.38 520
0287025._ 25 92 2.52 1080
Temperature Rerating Curve
0287030._ 30 84 1.97 1510
0287035._ 35 87 1.61 2280
0287040._ 40 96 1.44 3310
Dimensions
Dimensions in mm
*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-platings temperature limit is 130C, and Ag-plating allows up
to 150C at the terminal interface.
Rev 11252019
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.
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