0438 Series Fast-Acting SMF
    
                                                          
    The 438 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series.
    
                                                                                      
      
                                                                                                                      
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                                            Brand：
                                            Littelfuse                                        
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                                            Classification：
                                            SMD Fuse                                        
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                                            Voltage：
                                            63V/32V/24V                                        
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                                            Current：
                                            0.25A-6A                                        
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    Description:
    　The 438 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperature up to 150oC.
    　The general design ensures excellent temperature stability and performance reliability.
    　The high I2t values which is typical in the Littelfuse Ceramic Fuse family ensure high inrush current withstand capability.

    Features:
    ? Operating Temperature from -55oC to +150oC
    ? Suitable for both leaded and lead-free reflow / wave soldering
    ? 100% Lead-free, RoHS compliant and Halogenfree


    Applications:
    ? Handheld Electronics
    ? Hard Disk Drives
    ? LCD Displays
    ? SD Memory Cards
    ? Battery Packs


    Ampere Rating
    (A)
    Amp Code
    Max Voltage Rating
    (V)
    Interruping Rating
    Nominal Resistance
    (Ohms)
    Nominal Melting I2t
    (A2sec)
    Nominal Voltage Drop At Rated Current
    （V）
    Nominal Power Dissipation At Rated Current（W）
    0.25.25063VDC
    50A @63VDC
    50A @32VAC
      2.218
      0.0017
      0.550
      0.138
    0.375
      .375
    63VDC
      1.247
      0.0041
      0.488
      0.183
    0.5
      .500
    63VDC
      0.829
      0.0100
      0.486
      0.243
    0.75
      .750
    63VDC
      0.466
      0.0281
      0.378
      0.284
    1.0
      001.
    63VDC
      0.310
      0.0593
      0.351
      0.351
      1.25
      1.25
    63VDC
      0.200
      0.0510
      0.365
      0.456
      1.5
      01.5
    63VDC
      0.174
      0.0902
      0.368
      0.552
      1.75
      1.75
    63VDC
      1.405
      0.1440
      0.360
      0.540
      2.0
      002.
      32
    50A @32VDC/12VAC
      0.051
      0.1490
      0.107
      0.214
      2.5
      02.5
      32
      0.0324
      0.1977
      0.095
      0.238
      3.0
      003.
      32
      0.0255
      0.2922
      0.093
      0.279
      3.5
      03.5
      32
      0.0205
      0.4752
      0.082
      0.287
      4.0
      004.
      32
      0.0170
      0.6920
      0.079
      0.316
      5.0
      005.
      32
      0.0115
      0.7398
      0.074
      0.370
      6.0
      006.
      24
    50A @24VDC/12VAC
      0.0085
      1.3838
      0.072
      0.430

                                    
    
                                
                                
    
                                    
    JDTFUSE