![0448.500MR — Fuse, Surface Mount, 500 mA, Very Fast Acting, 125 VAC, 125 VDC, 2410 [6125 Metric], NANO2 448](/media/5/2/6/82EC0B5BD3F00625.webp)
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0448.500MR
Fuse, Surface Mount, 500 mA, Very Fast Acting, 125 VAC, 125 VDC, 2410 [6125 Metric], NANO2 448
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type: SMD Fuses
- Fuse Current:500mA; Product Range:NANO2 Series; Voltage Rating VAC:125VAC; Voltage Rating V DC:32VDC; Blow Characteristic:Very Fast Acting; Fuse Case Style:SMD; Breaking Capacity Current
- SVHC: No SVHC (25-Jun-2020)
- Fuse Current: 500mA
- Product Range: NANO2 448
- Fuse Case Style: 2410 [6125 Metric]
- Voltage Rating VAC: 125VAC
- Voltage Rating VDC: 125VDC
- Blow Characteristic: Very Fast Acting
- Breaking Capacity Current AC: 50A
- Breaking Capacity Current DC: 300A
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.82 € |
| Current stock | 500+ |
| Lead time | 30 days |
Datasheet
**Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series **RoHS Pb PSE** ~~[JOH A @ <<~~ ## 448 Series Fuse ## ~~**Description** Po~~ The lead-free Nano[2®] SMF Fuse is a very small, square surface mount fuse that is RoHS compliant, Halogen Free and 100% lead-free. This product is fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly. ## ~~**Features** EEE~~ - RoHS compliant, Lead• Wide operating free and Halogen Free temperature range ## ~~**Agency Approvals** Lo~~ **==> picture [243 x 180] intentionally omitted <==** **----- Start of picture text -----**<br> AGENCY AGENCY FILE NUMBER AMPERE RANGE<br>W E10480 0.062A - 15A<br>29862 0.062A - 15A<br>i [g] PS NBK030205-E10480A 1A - 1.6A<br>Oo E NBK030205-E10480B 2A - 5A<br>Electrical Characteristics for Series<br>Lo<br>% of Ampere<br>Ampere Rating Opening Time<br>Rating<br>100% 1/16 –15 4 hours, Minimum<br>1/16 –10 5 sec., Maximum<br>200%<br>12 –15 20 sec., Maximum<br>**----- End of picture text -----**<br> - Very fast-acting - Low temperature de-rating - Small size - Wide range of current rating available (0.062A to 15A) ## ~~**Applications** Po~~ • Notebook PC • Storage system - Notebook PC • Storage system - LCD/PDP TV - Telecom system - LCD monitor - Wireless basestation - LCD/PDP panel - White goods - LCD backlight inverter - Game console - Office Automation equipment - Portable DVD player - Power supply - Battery charging circuit protection - Networking - PC server - Industrial equipment - Cooling fan system **==> picture [244 x 69] intentionally omitted <==** **----- Start of picture text -----**<br> Additional Information<br>Po<br>Datasheet Resources Samples<br>**----- End of picture text -----**<br> © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 12/14/17 **Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series **==> picture [94 x 32] intentionally omitted <==** ## ~~**Electrical Specifcations by Item**~~ **==> picture [455 x 515] intentionally omitted <==** **----- Start of picture text -----**<br> Ampere Max Nominal Cold Nominal Agency Approvals<br>Voltage Interrupting<br>Rating(A) Amp Code Rating Rating Resistance (Ohms) I [2] Melting t (A [2] sec) PSE<br>(V)<br>0.062 .062 125 5.50 0.00023 x x<br>0.080 .080 125 4.42 0.00043 x x<br>0.100 .100 125 2.90 0.00082 x x<br>0.125 .125 125 2.58 0.00130 x x<br>0.160 .160 125 1.76 0.00280 x x<br>0.200 .200 125 1.65 0.00380 x x<br>0.250 .250 125 0.95 0.01520 x x<br>0.315 .315 125 0.7015 0.02650 x x<br>0.375 .375 125 0.6155 0.02400 x x<br>0.400 .400 125 0.4895 0.04160 x x<br>0.500 .500 125 0.3800 0.10000 x x<br>0.630 .630 125 0.3125 0.121 x x<br>0.750 .750 125 0.2290 0.206 x x<br>0.800 .800 125 50A @125VAC/VDC 0.1907 0.272 x x<br>300A @32 VDC<br>1.00 001. 125 0.08630 0.441 x x x<br>PSE: 100A @100VAC<br>1.25 1.25 125 0.06619 0.900 x x x<br>1.50 01.5 125 0.06514 0.900 x x x<br>1.60 01.6 125 0.06261 1.122 x x x<br>2.00 002. 125 0.03529 0.812 x x x<br>2.50 02.5 125 0.02934 1.156 x x x<br>3.00 003. 125 0.02445 1.720 x x x<br>3.15 3.15 125 0.02300 1.810 x x x<br>3.50 03.5 125 0.02100 2.300 x x x<br>4.00 004. 125 0.01577 3.970 x x x<br>5.00 005. 125 0.01531 4.490 x x x<br>6.30 06.3 125 0.01044 12.10 x x x<br>7.00 007. 125 0.00900 13.92 x x x<br>8.00 008. 125 0.00780 18.33 x x x<br>35A @125 VAC<br>50A @125 VDC<br>10.00 010. 125 300A @32 VDC 0.00700 28.00 x x x<br>PSE: 100A @100VAC<br>12.00 012. 85 0.00533 47.59 x x<br>50A @65 VAC/VDC<br>300A @24 VDC<br>15.00 015. 85 0.00394 78.4 x x<br>200A @85 VDC<br>**----- End of picture text -----**<br> Notes: - l[2] t calculated at 8ms. - Resistance is measured at 10% of rated current, 25ºC © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/17 **Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series **==> picture [93 x 32] intentionally omitted <==** ## ~~**Temperature Re-rating Curve**~~ **==> picture [243 x 196] intentionally omitted <==** Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. ## ~~**Average Time Current Curves**~~ **==> picture [245 x 305] intentionally omitted <==** **----- Start of picture text -----**<br> 100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>0.1 1 10 100 1000<br>CURRENT IN AMPS<br>.062 A .080 A .100 A .125 A .160 A .200 A .250 A .315 A .375 A .40 A .50 A .63 A .75 A .80 A 1.00 A 1.25 A 1.50 A 1.60 A 2.00 A 2.50 A 3.00 A 3.15 A 3.50 A 4.00 A 5.00 A 6.30 A 7 A 8 A 10 A 12 A 15 A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br> **==> picture [522 x 285] intentionally omitted <==** **----- Start of picture text -----**<br> ||||||||||| |---|---|---|---|---|---|---|---|---|---| |Soldering Parameters| |Reflow Condition|Pb – Free assembly|t|P| |T|P| |Critical Zone| |- Temperature Min (Ts(min))|150°C|Ramp-up|TL to TP| |Pre Heat|- Time (Min to Max) (t- Temperature Max (Ts(max)s)|)|200°C60 – 120 secs|T|S(max)|T|L|t|L| |Average ramp up rate (Liquidus Temp|5°C/second max.|Preheat|Ramp-down| |(TL) to peak|T|S(min)| |TS(max) to TL - Ramp-up Rate|5°C/second max.|t|S| |Reflow|- Temperature (TL) (Liquidus)|217°C|25| |- Temperature (tL)|60 – 90 seconds|time to peak temperature|Time| |(t 25ºC to peak)| |Peak Temperature (TP)|260|[+0/–5]|°C| |Time within 5°C of actual peak| |20 – 40 seconds| |Temperature (tp)| |Ramp-down Rate|5°C/second max.| |Time 25°C to peak Temperature (TP)|8 minutes max.| |Do not exceed|260°C| |260°C Peak| |Wave Soldering Parameters|Temperature, 10| |seconds max.| **----- End of picture text -----**<br> © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/17 **Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series **==> picture [94 x 32] intentionally omitted <==** ## ~~**Product Characteristics**~~ |**Materials**|Body: Ceramic<br>Terminations: Gold-plated Caps| |---|---| |**Product Marking**|Brand, Amperage Rating| |**Operating**<br>**Temperature**<br>**Moisture Sensitivity**<br>**Level**|-55oC to 125oC<br>Level 1, J-STD-020| |**Solderability**|MIL-STD-202, Method 208| |**Insulation**<br>**Resistance (after**<br>**Opening)**|MIL-STD-202, Method 302, Test Condition<br>A (10,000 ohms minimum)| ||MIL-STD-202, Method 107, Test|| |---|---|---| |**Thermal Shock**|Condition B, 5 cycles, -65oC to|| ||125oC,15 minutes @ each extreme|| ||MIL-STD-202, Method 213, Test I:|| |**Mechanical Shock**|Deenergized. 100G’s pk amplitude,<br>sawtooth wave 6ms duration, 3|| ||cycles XYZ+xyz = 18 shocks|| ||MIL-STD-202, Method 201: 0.03”|| |**Vibration**|amplitude, 10-55 Hz in 1 min. 2hrs|| ||each XYZ=6hrs|| |**Moisture Resistance**|MIL-STD-202, Method 106, 10 cycles|| |**Salt Spray**|MIL-STD-202, Method 101, Test<br>Condition B (48hrs)|| |**Resistance to Soldering**|MIL-STD-202, Method 210, Test|| |**Heat**|condition B (10 sec at 260oC)|| **==> picture [261 x 19] intentionally omitted <==** **----- Start of picture text -----**<br> Dimensions<br>**----- End of picture text -----**<br> **==> picture [261 x 19] intentionally omitted <==** **----- Start of picture text -----**<br> Part Numbering System<br>**----- End of picture text -----**<br> **==> picture [522 x 277] intentionally omitted <==** **----- Start of picture text -----**<br> 6.10 ± .20 (.240") 2.69 ± .25(.106") 0448 001. M R<br>7 A F 2.69 ± .25 SERIES<br>(.106")<br>AMP Code [*]<br>1.45 Refer to Electrical<br>(.057") Characteristics table<br>6.86 QUANTITY Code<br>(.270") M = 1000 pcs<br>3.15 PACKAGING Code<br>(.124") R = Tape and Reel<br>*Example:<br>2.95<br>1.5 amp product is 044801.5MR<br>1.96 (.116") (1 amp product shown above).<br>(.077")<br>Recommended pad layout<br>Packaging<br>Quantity &<br>Packaging Option Packaging Specification Quantity<br> Packaging Code<br>12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 1000 MR<br>**----- End of picture text -----**<br> **Disclaimer Notice - 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. Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.** © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/17
Updated at June 9, 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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