0443002.DR.

**Surface Mount Fuses** NANO[2®] > 250V > Time Lag > 443 Series 

## **443 Series Fuse** 

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Description<br>The 250V<br>fusedirective.that is<br>solder alloy<br>with lead-free<br>Features<br>**----- End of picture text -----**<br>


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Agency  Approvals 5.008 associated with lead<br>Po ° Available 0.50A — temperature profiles<br>AGENCY AGENCY FILE NUMBER AMPERE RANGE<br>Applications<br>E10480 0.500A - 5.00A<br>Adis Lo<br>—— — e AC/DC power adaptor e — High voltage DC/DC<br>e Telecom equipment converter<br>Electrical Characteristics for Series<br>e Portable system built- e LED Lighting<br>% of Ampere<br>Opening Time in AC/DC converter<br>Rating<br>**----- End of picture text -----**<br>


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

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Max Agency<br>Ampere  Voltage  Interrupting Nominal Cold  Nominal  Nominal Approvals<br>Rating Amp Code Resistance  Melting  Voltage Drop<br>(A) Rating  Rating (Ohms) I t (A [2] sec)  (mV)<br>(V)<br>448<br>0.60 aco | tet |x<br>0.75 x<br>1 x<br>1.50 x<br>2 0.052 x<br>50A @250VAC<br>98<br>4 81<br>6 (coe | ose | dS<br>**----- End of picture text -----**<br>


Notes: 

1. Cold resistance measured at less than 10% of rated current at 23°C. 

2.  Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved 

3. Have special electrical characteristic needs? Contact Littelfuse to learn more about application specific options. 

© 2009 Littelfuse, Inc. 

**443 Series** 

**73** 

Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/443.html for current information. 

Revised: March 17, 2009 

**Introduction to Circuit ProtectionSurface Mount Fuses** NANO[2® ] > 250V > Time Lag > 443 SeriesTransientology 

## ~~**Temperature Rerating Curve**~~ 

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

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100<br>Sees eet mame<br>10<br>|<br>mu<br>FEES EI HH<br>VENA\ |<br>\ \ \y<br>1<br>\ \ \<br>— ee\ ee)\\\oo \\ ee<br>FFE NTNRAT<br>YAY<br>0.1 \\\ \\ \\\\<br>FNNE NAN RNG<br>\ AA<br>0.01 ee ee ee ee eeLWNee,\\\\ ‘th<br>PE EEAWAIANAE<br>Set eet \a \\aea\<br>0.001 a aAN\| \N<br>0.1 1 10 100 1000<br>CURRENT IN AMPS<br>0.50 A 0.75 A 1.00 A 1.50 A 2.00 A 2.50 A 3.00 A 3.50 A 4.00 A 5.00 A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br>


## ~~**Soldering Parameters**~~ 

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Reflow Condition t P<br>T P<br>Critical Zone<br>- Temperature Min (Ts(min)) Ramp-up TL to TP<br>Pre Heat ef - Temperature Max (T- Time (Min to Max) (tss()max)) T S(max) T L — t L [ |<br>[| Ramp-down<br>Average ramp up rate (Liquidus Temp  5°C/second max. Preheat<br>(TL) to peak T S(min)<br>ereiscconsranc TS(max) to TL - Ramp-up Rate t S<br>Reflow es - Temperature (TL) (Liquidus) 25<br>—C=*d - Temperature (tL) = 80 seconds time to peak temperature(t 25ºC to peak) —— Time =<br>Peak Temperature (TP)<br>ee cc<br>Time within 5°C of actual peak<br><< Temperature (tp)<br>pO Ramp-down Rate Cisco max.<br>OF Time 25°C to peak Temperature (TP)<br>arrinutes min<br>Do not exceed<br>A<br>Temperature<br>**----- End of picture text -----**<br>


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Wave Soldering Parameters<br>**----- End of picture text -----**<br>


© 2009 Littelfuse, Inc. 

**443 Series** 

**74** 

Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/443.html for current information. 

Revised: March 17, 2009 

**Surface Mount Fuses** NANO[2®] > 250V > Time Lag > 443 Series 

## ~~**Product Characteristics**~~ 

**Materials Product Marking Insulation Resistance** (after . Opening) **Solderability** | **Resistance to Soldering Heat Moisture Sensitivity Level PCB Recommendation for Thermal Management** 

**Operating Temperature** ~~ee~~ —55°C to 125°C with proper derating MIL-STD-202F, Method 107G, **Thermal Shock** Test Condition B (5 cycles -65°C to +125°C) **Vibration** oo {10-5MILSTD-202FHz) Method 201A **Moisture Resistance** MILSTD-202,High HumidityMethod(90-98%106,RH), Heat (65°C) **Salt Spray** ~~[7 TestMILSTD-202FCondition MethodB 101,~~ MILSTD-202, Method 213, **Mechanical Shock** 

## ~~**Dimensions**~~ 

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3.25<br>10.10 (.128")<br>(.397")<br>6.10<br>5A T 3.12 (.240") 3.43<br>AC250V (.123") (.135")<br>a 12.6 a<br>3.12<br>(.496")<br>| - (.123") +| | |-——— ——-|<br>1.70 typ<br>Recommended Pad Layout<br>(.067")<br>**----- End of picture text -----**<br>


## ~~**Part Numbering System**~~ 

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0443 .500 D  R<br>**----- End of picture text -----**<br>


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SERIES<br>AMP Code<br>Refer to Electrical<br>characteristics table<br>QUANTITY CodePACKAGING Code D = 1500 pcs<br>R = Tape and Reel<br>Example:<br>1.5 amp product is<br>0443 =D 01.5  R (0.5 amp<br>**----- End of picture text -----**<br>


## ~~**Packaging**~~ 

Quantity & Packaging Option Packaging Specification Quantity Packaging Code 

© 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/443.html for current information. 

**443 Series** 

**75** 

Revised: March 17, 2009 

**Introduction to Circuit Protection** 

Transientology 

© 2009 Littelfuse, Inc. Specifications are subject to change without notice. 

**76** Revised: March 17, 2009