0448001.MR

**Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series 

## 448 Series Fuse 

## ~~**RoHS Pb**~~ **PSE** ~~| IOHF WAG<~~ 

## ~~**Description** Lo~~ 

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** es~~ 

- RoHS compliant, Lead• Wide operating free and Halogen Free temperature range 

- Very fast-acting 

- UL Recognized to UL/ CSA/NMX UL 248-1 and UL/CSA/NMX UL 248-14 

## ~~**Agency Approvals**~~ 

- Small size 

- Wide range of current • Conforms to DENAN’s 

- rating available (0.062A Appendix 3 

- to 15A) 

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Agency Agency File Number Ampere Range<br>E10480 0.062A - 15A<br>A<br>29862 0.062A - 15A<br>G.<br>PS NBK030205-E10480A        1A - 1.6A<br>E NBK030205-E10480B          2A - 5A<br>><br>**----- End of picture text -----**<br>


## ~~**Applications** —E—ee~~ 

- Notebook PC 

   - Storage system 

- LCD/PDP TV 

- Telecom system 

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Electrical Characteristics for Series<br>a<br>% of Ampere Rating Ampere Rating Opening Time<br>100% 0.062A –15 4 hours, Minimum<br>0.062A –10 5 sec., Maximum<br>200%<br>ee 12 –15 20 sec., Maximum<br>**----- End of picture text -----**<br>


- 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 

## **Additional Information** 

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Datasheet Resources Samples<br>**----- End of picture text -----**<br>


© 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/22/19 

**Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series 

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## ~~**Electrical Specifcations by Item**~~ 

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Agency Approvals<br>Max Nominal Cold<br>Ampere Rating(A) Amp Code Voltage Rating (V) InterruptingRating Resistance (Ohms) Nominal Melting I [2] t (A [2] sec) PSE<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 50A @125VAC/ 0.2290 0.206 x x<br>0.800 .800 125 VDC 0.1907 0.272 x x<br>300A @32 VDC<br>1.00 001. 125 PSE: 100A  0.08630 0.441 x x x<br>1.25 1.25 125 @100VAC 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<br>@100VAC<br>12.00 012. 85 50A @65 VAC/ 0.00533 47.59 x x<br>VDC<br>15.00 015. 85 300A @24 VDC 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 

© 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/22/19 

**Surface Mount Fuses** 

NANO[2®] Fuse > Very Fast-Acting > 448 Series 

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Temperature Re-rating Curve<br>**----- End of picture text -----**<br>


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## **Note:** 

**1.** Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 

## ~~**Average Time Current Curves**~~ 

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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>


||~~**Soldering Parameters**~~||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||||||||||
||**Refow Condition**<br>**Pre Heat**<br>**- Temperature Min (Ts(min))**<br>**- Temperature Max (Ts(max))**||Pb – Free assembly<br>150°C<br>200°C|||**T**P|||||**Ramp-up**|||**t**P||**Critical Zone**<br>**TL to TP**|||||
||**- Time (Min to Max) (ts)**<br>**Average ramp up rate (Liquidus Temp (TL) to peak**<br>**TS(max) to TL - Ramp-up Rate**<br>**Refow**<br>**- Temperature (TL) (Liquidus)**<br>**- Temperature (tL)**<br>**Peak Temperature (TP)**||60 – 180 secs<br>5°C/second max.<br>5°C/second max.<br>217°C<br>60 – 150 seconds<br>260+0/–5°C||**Temperature**|**T**L<br>**T**S(max)<br>**T**S(min)||**t**S<br>**Preheat**||||||**t**L||**Ramp-down**|||||
||**Time within 5°C of actual peak Temperature (tp)**<br>**Ramp-down Rate**||20 – 40 seconds<br>5°C/second max.|||**25**|**time to peak temperature**<br>**(t 25ºC to peak)**||||||||**Time**||||||
||**Time 25°C to peak Temperature (TP)**||8 minutes max.||||||||||||||||||
||**Do not exceed**||260°C||||||||||||||||||
||||||||||||||||||||||
||**Wave Soldering Parameters**|260°C Peak Temperature, 10 seconds max.|||||||||||||||||||



© 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/22/19 

**Surface Mount Fuses** NANO[2®] Fuse > Very Fast-Acting > 448 Series 

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||~~**Product Characteristics**~~|~~**Product Characteristics**~~|||||
|---|---|---|---|---|---|---|
||||||||
||**Materials**|Body: Ceramic<br>Terminations: Gold-plated Caps||**Thermal Shock**|MIL-STD-202, Method 107, Test Condition<br>B, 5 cycles, -65oC to 125oC, 15 minutes @||
||**Product Marking**<br>**Operating Temperature**<br>**Moisture Sensitivity Level**|Brand, Amperage Rating<br>-55oC to 125oC<br>Level 1, J-STD-020||**Mechanical Shock**|each extreme<br>MIL-STD-202, Method 213, Test I:<br>Deenergized.  100G’s pk amplitude,<br>sawtooth wave 6ms duration, 3 cycles||
||**Solderability**|MIL-STD-202, Method 208|||XYZ+xyz = 18 shocks||
||**Insulation Resistance (after**|MIL-STD-202, Method 302, Test Condition A|||MIL-STD-202, Method 201: 0.03”||
||**Opening)**|(10,000 ohms minimum)||**Vibration**|amplitude, 10-55 Hz in 1 min.  2hrs each||



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Materials Body: Ceramic                                                       MIL-STD-202, Method 107, Test Condition<br>Terminations: Gold-plated Caps Thermal Shock B, 5 cycles, -65 [o] C to 125 [o] C, 15 minutes @<br>Product Marking Brand, Amperage Rating each extreme<br>Operating Temperature -55 [o] C to 125 [o] C MIL-STD-202, Method 213, Test I:<br>Moisture Sensitivity Level Level 1, J-STD-020 Mechanical Shock Deenergized.  100G’s pk amplitude, sawtooth wave 6ms duration, 3 cycles<br>Solderability MIL-STD-202, Method 208 XYZ+xyz = 18 shocks<br>Insulation Resistance (after  MIL-STD-202, Method 302, Test Condition A  MIL-STD-202, Method 201: 0.03”<br>Opening) (10,000 ohms minimum) Vibration amplitude, 10-55 Hz in 1 min.  2hrs each<br>XYZ=6hrs<br>Moisture Resistance MIL-STD-202, Method 106, 10 cycles<br>MIL-STD-202, Method 101, Test Condition<br>Salt Spray B (48hrs)<br>MIL-STD-202, Method 210, Test condition<br>Resistance to Soldering Heat B (10 sec at 260 [o] C)<br>Dimensions Part Numbering System<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 1.5 amp product is 044801.5MR (1 amp<br>1.96 (.116") product shown above).<br>(.077")<br>Recommended pad layout<br>Packaging<br>Quantity &<br>Packaging Option Packaging Specification Quantity  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. 

© 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/22/19