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Position:Home > Product > Littelfuse > Thin Film Chip Fuse
Thin Film Chip Fuse

0494 Series Fast-Acting SMF

0494 Series Fast-Acting SMF
  • Brand:Littelfuse
  • Classification:SMD Fuse
  • Voltage:32V
  • Current:0.25A-5A
  • IntroductionThe 494 Series Fast-Acting SMF is an ultra small (0603 size) thin-film device.

Detailed

JDTFUSEDetail specification

Description:
 The 494 Series Fast-Acting SMF is an ultra small (0603 size) thin-film device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices. This series is 100% lead-free and meets the requirements of the RoHS directive. New Halide-Free 494 Series fuses are available to order using the “HF” suffix. See Part Numbering section for additional information.
 

Features:

• Compatible with leadfree solders and higher temperature profiles

• High performance materials provide improved performance in elevated ambient temperature applications

• Marked on top surface with code to allow ampere rating identification without testing

• Low profile for height sensitive applications

• Flat top surface for pickand-place operations

• Element-covering material is resistant to industry standard cleaning operations

• Mounting pad and electrical performance are identical to Littelfuse 431 and 434 Series products

• Alloy-based element construction provides superior inrush withstand characteristics (I2t) over ceramic or glass-based 0603 fuse products

 

Applications:

Secondary protection for space constrained applications:

• Cell phones

• Digital cameras

• Hard disk drives

• Battery packs

• DVD players

 

 

Ampere Rating(A)
 
Amp Code
Max Voltage Rating(V)
Interruping Rating
Nominal Cold Resistance(Ohms)
Nominal Melting I²t(A²sec)
Nominal Voltage Drop(mV)
Nominal Power Dissipation(W)
Agency
Approvals
 
 
0.250 .250 32 50A @32V AC/DC
 
0.5450
0.0030 158.56
0.0396
×
×
0.375
.375
32
0.2900
0.0053
128.03
0.0480
×
×
0.500
.500
32
0.1870
0.0087
115.71
0.0579
×
×
0.750
.750
32
0.1170
0.0171
107.33
0.0805
×
×
1.00
001.
32
0.0710
0.0212
89.10
0.0891
×
×
1.25
1.25
32
35A @32V AC/DC
 
0.0530
0.0518
84.32
0.1054
×
×
1.40
01.4
32
0.049
0.05529
74.84
0.1048
×
×
1.50
01.5
32
0.0410
0.0766
81.14
0.1217
×
×
1.75
1.75
32
0.0320
0.0903
78.75
0.1378
×
×
2.00
002.
32
0.0300
0.1103
78.22
0.1564
×
×
2.50
02.5
32
0.0220
0.1440
76.10
0.1903
×
×
3.00
003.
32
0.0180
0.2403
75.04
0.2251
×
×
3.15
3.15
32
0.017
0.27405
63.78
0.2009
×
×
3.50
03.5
32
0.0150
0.4306
74.25
0.2599
×
×
4.00
004.
32
0.0130
0.5760
73.72
0.2949
×
×
5.00
005.
32
0.0090
0.9000
72.71
0.3635
×
×
 

 

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Hits:  UpdateTime:2019-04-26 09:51:21
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