0287003.PXCN
Fuse, Automotive, Fast Acting, 3 A, 32 V, 19.1mm x 5mm x 19mm, ATOF
- Manufacturer: LITTELFUSE
- Product type: Automotive Fuses
- Blow Characteristic:Fast Acting; Fuse Current:3A; Voltage Rating V DC:32V; Auto Blade Fuse Size:19.1mm x 5mm x 19mm; Product Range:ATOF Series; Breaking Capacity Current DC:1000A; Colour Code:Viole
- SVHC: No SVHC (17-Dec-2014)
- Fuse Current: 3A
- Product Range: ATOF
- Voltage Rating VDC: 32V
- Blow Characteristic: Fast Acting
- Auto Blade Fuse Size: 19.1mm x 5mm x 19mm
| Delivery and price | |
|---|---|
| Units per pack | 2000 |
| Price | 0.143 € |
| Current stock | 1000+ |
| Lead time | 30 days |
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. ATOF[®] Blade Fuses ATO[®] Ag (Silver plated) Blade Fuses ## Specifications ATOF[®] ATO Ag (Tin Plated) (Silver Plated) Voltage Rating: 32 VDC 32 VDC Interrupting Rating: 1000A @ 32 VDC 1000A @ 32 VDC *Recommended Environmental Temperature: -40˚C to +125˚C -40˚C to +125˚C Terminals Material: Tin plated zinc alloy Silver plated zinc alloy Housing Material: PA66 PA66 (U.L. 94 Flammability rating – V2) (U.L. 94 Flammability rating – V2) Net Weight Per Fuse: 1.4±5% gr 1.4±5% gr 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 *Tin plating’s temperature limit is ≈130˚C, Silver plating allows up to 150˚C at the terminal interface. ## Time-Current Characteristic Curves **==> picture [184 x 260] intentionally omitted <==** **----- Start of picture text -----**<br> 10000<br>1000<br>100 Fil i<br>10 | ELL | aemen<br>1 FAA A<br>0.1<br>0.01<br>1 10 100 1000<br>Current [A]<br>1A 2A 3A 4A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A<br>Time [s]<br>**----- End of picture text -----**<br> |Ordering Information||Time-Current Characteristics|Time-Current Characteristics| |---|---|---|---| |**Part**<br>**Number**<br>**Rating**<br>**Package**<br>**Size**||**% of Rating**|**Current**<br>**Rating**<br>**Opening Time**<br>**Min / Max (s)**| |ATOF®(Tin Plated)||100|35A & 40A<br>360,000 /∞| |0287xxx.PXCN<br>1 - 40<br>2000<br>0287xxx.U<br>1 - 40<br>500<br>0287xxx.H<br>1 - 40<br>100<br>0287xxx.L<br>1 - 40<br>50<br>ATO Ag (Silver Plated)<br>0287xxx.PXS<br>1 - 40<br>2000<br>Ratings<br>**Part Number Current Rating**<br>**(A)**<br>**Housing**<br>**Material Color**<br>0287001._<br>1<br>0287002._<br>2<br>0287003._<br>3<br>0287004._<br>4<br>0287005._<br>5<br>028707.5_<br>7.5<br>0287010._<br>10<br>0287015._<br>15<br>0287020._<br>20<br>0287025._<br>25<br>0287030._<br>30<br>0287035._<br>35<br>0287040._<br>40<br>a<br>~~=~~<br>|__|<br>_<br>~~:~~<br>|_|<br>|_|<br>|_||**Test Cable**<br>**Size**<br>**(mm2)**<br>**Typ. Voltage**<br>**Drop**<br>**(mV)**<br>**Typ.Cold**<br>**Resistance**<br>**(m**Ω**)**<br>Typ.**I2t**<br>**(A2s)**<br>0.5<br>176<br>123<br>0.4<br>0.5<br>141<br>53.5<br>1.4<br>0.5<br>137<br>31.1<br>7.4<br>0.5<br>136<br>22.8<br>14<br>0.5<br>128<br>17.85<br>26<br>0.75<br>116<br>10.91<br>60<br>1<br>109<br>7.70<br>115<br>1.5<br>102<br>4.80<br>340<br>2.5<br>98<br>3.38<br>520<br>2.5<br>92<br>2.52<br>1,000<br>4<br>84<br>1.97<br>1,500<br>6<br>87<br>1.61<br>2,300<br>6<br>96<br>1.44<br>3,300<br>110<br>1A-40A<br>360,000 /∞<br>135<br>1A & 2A<br>3A-40A<br>0.35 / 600<br>0.750 / 600<br>160<br>1A-40A<br>0.250 / 50<br>200<br>1A & 2A<br>3A-40A<br>0.1 / 5<br>0.15 / 5<br>350<br>1A & 2A<br>3A-40A<br>0.02 / 0.5<br>0.80 / 0.5<br>600<br>1A-30A<br>35A & 40A<br>0.1 max<br>0.15 max||| ## Ratings The typical I[2] t is an average value calculated from the breaking capacity tests by using the melting time before the arcing occurs. ## REV07272021 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®. littelfuse.com 11 Blade Fuses ## ATOF[®] Blade Fuses Rated 32V ## Dimensions Dimensions in mm for reference only. See outline drawing for dimensions and tolerances. **==> picture [173 x 137] intentionally omitted <==** **----- Start of picture text -----**<br> 19.1 5.1<br>18.8<br>6.5<br>0.65<br>4.1<br>14.5<br>**----- End of picture text -----**<br> ## Temperature Table **==> picture [249 x 213] intentionally omitted <==** **----- Start of picture text -----**<br> max. allowed current load [A] at ambient temperature (typical derating)<br>-40°C 0°C 20°C 65°C 85°C 110°C 125°C<br>1A 1 1 1 1 1 1 1<br>2A 2 2 2 2 2 1 1<br>3A 3 3 3 3 2 2 2<br>4A 4 4 4 3 3 3 2<br>5A 5 5 5 4 4 3 3<br>7.5A 8 7 7 6 5 5 4<br>10A 10 10 10 8 7 6 5<br>15A 15 15 14 12 11 9 8<br>20A 20 19 18 15 14 12 10<br>25A 25 25 23 19 18 15 13<br>30A 30 29 27 23 21 18 15<br>35A 35 35 35 29 27 22 19<br>40A 40 39 37 31 28 24 20<br>**----- End of picture text -----**<br> ## Typical Derating of Fuse Melting Element Temperature Security Margin is 20% Wire Cross Section And Fixture Test Set Up Refer To ISO 8820-3 Please Contact Littelfuse[®] For Details Regarding Derating Test Set Up **==> picture [360 x 214] intentionally omitted <==** **----- Start of picture text -----**<br> 50<br>1A<br>2A<br>45 3A<br>4A<br>5A<br>40 7.5A<br>Max Recommended 10A<br>35 EnvironmentalTemperature 15A20A<br>25A<br>30 30A<br>35A<br>40A<br>25<br>20<br>15<br>10<br>5<br>0<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180<br>Ambient Temperature [°C]<br>Max. Allowed Current Load [A]<br>**----- End of picture text -----**<br> Derating curves may change depending on the final condition of the application (terminals characteristics, wire size etc..). Please ask Littelfuse[®] for more information. ## REV07272021 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®. littelfuse.com 12
Updated at April 28, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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