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0438 Series Fast-Acting SMF

The 438 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series.

  • Brand： Littelfuse
  • Classification： SMD Fuse
  • Voltage： 63V/32V/24V
  • Current： 0.25A-6A
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


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