PRODUCT DATASHEET
JFC0402FS Series Fuse
JFC0402FS Series Fuse
Description
The JFC0402FS Series are fast-acting surface mount
thin-film fuses. Their ultra-small size (0402 size) makes
them ideal for secondary protection of circuits used in
space constrained applications such as hand-held
portable electronic devices.
This series is 100% lead-free and meet the requirements
of the RoHS directive. New Halogen-Free 497 Series
fuses are available-to order use the " HF" suffix. See
Part Numbering section for additional information.
Agency Approvals
Agency
Agency File
Number
pending
pending
Ampere
Range
Features
●
35A interrut rating at 32VDC
●
Small size with current ratings of 0.25 to 5.0 amperes
●
RoHS compliant, lead-free and halogen-free
●
Maximum protection of sensitive circuits as fuses are
designed to open consistently in <5sec at 200%
overload
●
Enhanced Breaking Capacity, Hiqh I²t
0.250 - 5.0A
0.250 - 5.0A
Electrical Characteristics for Series
% of Ampere
Rating
100%
200%
300%
Opening Time at 25℃
4 hours,Minimum
5 sec., Maximum
0.2 sec., Maximum
Applications
Secondary protection for space constrained
applications such as:
●
Cell phones
●
Battery packs
●
Digital cameras
●
DVD players
●
Hard disk drives
JDT FUSE Electronics Corp.
Page 1/5
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JFC0402FS Series Fuse
Electrical Specifications by Item
Rated
Current
(A)
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I²t (A²sec)
Nom
Voltage
Drop
(mV)
Nom
Power
(W)
Agency Approvals
Part No.
JFC0402-0250FS
JFC0402-0375FS
JFC0402-0500FS
JFC0402-0750FS
JFC0402-1100FS
JFC0402-1125FS
JFC0402-1150FS
JFC0402-1175FS
JFC0402-1200FS
JFC0402-1250FS
JFC0402-1300FS
JFC0402-1350FS
JFC0402-1400FS
JFC0402-1500FS
0.250
0.375
0.500
0.750
1
1.25
1.5
1.75
2
2.5
3
3.5
4
5
32
32
32
32
32
32
32
32
32
32
32
32
32
32
35A
@32V DC
0.400
0.1930
0.1600
0.1050
0.0730
0.0600
0.0470
0.0390
0.0300
0.0185
0.0165
0.0135
0.0115
0.0085
0.0025
0.0035
0.0053
0.0120
0.0200
0.0350
0.0560
0.0750
0.1000
0.1560
0.2032
0.3017
0.3084
0.5310
110.53
84.64
93.35
101.84
87.45
96.37
86.70
81.13
70.62
55.25
60.58
57.84
57.00
52.44
0.027635
0.03174
0.04668
0.07638
0.08745
0.12046
0.13005
0.14198
0.14120
0.13813
0.18740
0.20244
0.22800
0.26220
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
1. Measured at 10% of rated current, 25℃.
2. Measured at rated voltage.
Temperature Rerating Curve
140
120
PERCENT OF RATING
100
80
60
40
20
Average Time Current Curves
100
10
TIME IN SECONDS
AMBIENT TEMPERATURE
1
0.1
Note:
1.Derating depicted in this curve is in addition to the
standard erating of 25 % for continuous operation.
Example:
For continuous operation at 70 degrees celsius, the fuse
should be deratedas follows:
I = (0.75) (0.80)I = (0.60)I
RAT
RAT
0.01
0.001
CURRENT IN AMPERES
Page 2/5
JDT FUSE Electronics Corp.
www.jdtfuse.com
JFC0402FS Series Fuse
Soldering Parameters
TP
260
Ramp-up
TP 20~40 S
Critical Zone
TL to TP
Reflow Condition
Pre Heat
-Temperature Min(Ts min)
-Temperature Max(Ts max)
-Time(Min to Max)(ts)
Average ramp up rate
(Liquidus Temp (TL) to peak
Ts(max) toTL- Ramp-up Rate
Pb-Free Assembly
150℃
200℃
60~120 seconds
5℃/second max
5℃/second max
TL
217
Tsmax
tL
200
Temperature (°C )
Tsmin
TIME IN SECOND
60~150 s
Ramp-down
150
ts
Preheat 60~180 s
25
t 25°C to peak
Time
Reflow
-Temperature(TL)（Liquidus） 217℃
-Temperature(TL)
60~150 seconds
Peak Temperature(Tp)
Time within 5℃ of actual
peak Temperature (Tp)
Ramp-Down Rate
Time 25℃ to Peak
Temperature（Tp）
Do not exceed
Wave Soldering
250
+0/-5
℃
20-40 seconds
5℃/second max
8 minutes max.
260℃
260℃,10 seconds max.
Product Characteristics
Materials
Terminal
Strength
Insulation
Resistance
Operating
Temperature
Thermal Shock
Vibration
Body: Epoxy/ Glass Substrate; Parts with 'HF' suffix: Halogen Free Epoxy / Glass
Terminations: 100 % Tin over Nickel over Copper Device Weight: 0.316mg
MIL-STD-202 F ,Method 211A, Test Condition A
After Opening: Greater than 10,0000hms
-55℃ to 90℃.Consult temperature rerating curve chart .For operation above 90℃
please contact Littelfuse
Withstands 5cycles of -55℃ t0 125℃
MIL-STD-202 F
JDT FUSE Electronics Corp.
Page 3/5
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JFC0402FS Series Fuse
Dimensions
.991 +/- .051
(.039" +/- .002")
A
Marking code varies
with amperage.
Refer to Part Marking
System chart.
Sn
B
.508 +/- .051
(.020" +/- .002")
.229 +/- .102
(.009" +/- .004")
Reflow solder
Cu
recommended
mounting pad
dimensions
.584
(.023")
.381
1.55
(.015") (.061")
C
.305 +/- .076
(.012" +/- .003")
D
.2159 +/- .0889
(.0085" +/- .0035")
Part Marking System
A
inch min
inch max
mm min
mm max
0.037
0.041
0.94
1.04
B
0.018
0.022
0.457
0.559
C
0.009
0.015
0.229
0.381
D
0.005
0.012
0.127
0.305
Amp Code
.250
.375
.500
.750
001.
1.25
01.5
1.75
002.
02.5
003.
03.5
004.
005.
.558
(.022")
Marking Code
JDT FUSE Electronics Corp.
Page 4/5
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