LITTELFUSE 0441004.WR

Surface Mount Fuses
Ceramic Fuse > 441 Series
441 Series – 0603 High I2t Fuse
Description
This 100% Lead-free, RoHS compliant and Halogen-free
fuse series has been designed specifically to provide over
current protection to circuits that see high working ambient
temperatures (up to 150ºC) and high inrush currents.
This high I²t fuse series is designed to have ultra high inrush
current withstand capability to avoid nuisance fuse open.
Features
Agency Approvals
Agency
Agency File Number
Ampere Range
E10480
2A - 6A
LR29862
2A - 6A
• Operating Temperature
from -55ºC to 150ºC
• 100% Lead-free and
RoHS compliant
Electrical Characteristics
• Suitable for both leaded
and lead-free reflow /
wave soldering
• Ultra high I²t values
Applications
% of Ampere
Rating
Ampere Rating
Opening Time at 25ºC
100%
2A - 6A
4 Hours Minimum
350%
2A - 6A
5 Seconds Maximum
• Handheld Electronics
• Hard Disk Drives
• LCD Displays
• SD Memory Cards
• Battery Packs
• Automotive Electronics
Electrical Specifications by Item
Ampere
Rating
(A)
Amp Max. Voltage
Code
Rating (V)
Interrupting
Rating
Nominal
Nominal
Resistance Melting I2t
(A2Sec.)3
(Ohms)2
Nominal Voltage
Drop At Rated
Current (V)4
Nominal Power Agency Approvals
Dissipation At
Rated Current (W)
2
002.
32
0.0302
0.3103
0.0551
0.110
X
X
2.5
02.5
32
0.0200
0.5520
0.0534
0.134
X
X
3
003.
32
0.0158
0.8165
0.0531
0.159
X
X
3.5
03.5
32
0.0117
0.9438
0.0468
0.164
X
X
4
004.
32
0.0097
1.2659
0.0475
0.190
X
X
5
005.
32
0.0073
1.6287
0.0472
0.236
X
X
6
006.
32
0.0056
2.6049
0.0464
0.278
X
X
50 A @ 32 VDC
Notes:
Devices designed to carry out rated current for 4 hours minimum. It is recommended that
devices be operated continuously at no more than 80% rated current. See “Temperature
Rerating Curve”for additional rerating information.
1. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msecs.
2.Nominal Resistance measured with < 10% rated current.
3.Nominal Melting I²t measured at 1 msec. opening time.
Devices designed to be mounted with marking code facing up.
4.Nominal Voltage Drop measured at rated current after temperature has stabilized.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
1
Revised: June 23, 2011
441 Series
441 Series
The general design ensures excellent temperature stability
and performance reliability.
Mount
Fuses
IntroductionSurface
to Circuit
Protection
Ceramic FuseTransientology
> 441 Series
100
140
120
10
100
80
60
40
-65
-45
-25
-5
15
35
55
75
95
115
135
1
TIME IN SECONDS
PERCENT OF RATING
2.5A
3A
3.5A
4A
5A
6A
Average Time Current Curves
2A
Temperature Rerating Curve
155
TEMPERATURE (°C)
0.1
Note:
1. Rerating depicted in this curve is in addition to the standard rerating of 20% for
continuous operation.
0.01
For continuous operation at 75 degrees celsius, the fuse should be rerated as follows:
I = (0.80)(0.85)IRAT = (0.68)IRAT
0.001
1
10
100
CURRENT IN AMPERES
Soldering Parameters
Pb – free assembly
Pre Heat
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (Min to Max) (ts)
60 – 180 seconds
Average Ramp-up Rate (Liquidus Temp
(TL) to peak)
3°C/second max.
TS(max) to TL - Ramp-up Rate
5°C/second max.
Reflow
- Temperature (TL) (Liquidus)
217°C
- Temperature (tL)
60 – 150 seconds
Peak Temperature (TP)
260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)
10 – 30 seconds
Ramp-down Rate
6°C/second max.
Time 25°C to peak Temperature (TP)
8 minutes max.
Do not exceed
260°C
Wave Soldering
441 Series
tP
TP
Critical Zone
TL to TP
Ramp-up
TL
TS(max)
Temperature
Reflow Condition
tL
Ramp-down
TS(min)
25
Preheat
tS
time to peak temperature
(t 25ºC to peak)
Time
260°C, 10 seconds max.
2
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
Surface Mount Fuses
Ceramic Fuse > 441 Series
Product Characteristics
Moisture
IPC/JEDEC J-STD-020C, Level 1
Sensitivity Level
Solderability
IPC/ECA/JEDEC J-STD-002C, Condition C
Humidity
MIL-STD-202, Method 103B, Conditions D
Resistance to
Solder Heat
MIL-STD-202, Method 210F, Condition B
Dimensions
Moisture Resistance
MIL-STD-202, Method 106G
Thermal Shock
MIL-STD-202, Method 107G,
Condition B
Mechanical Shock
MIL-STD-202, Method 213B,
Condition A
Vibration
MIL-STD-202, Method 201A
Vibration,
High Frequency
MIL-STD-202, Method 204D,
Condition D
Dissolution of
Metallization
IPC/ECA/JEDEC J-STD-002C,
Condition D
Terminal Strength
IEC 60127-4
441 Series
Body: Advanced Ceramic
Terminations: A
g / Ni / Sn (100% Lead-free)
Element Cover Coating: Lead-free Glass
Materials
Part Marking System
0.530 +/- 0.150
[0.021 +/- 0.006]
Amp Code
Marking Code
002.
N
1.54 +/- 0.150
[0.061 +/- 0.006]
0.850 +/- 0.150
[0.033 +/- 0.006]
02.5
O
003.
P
03.5
R
004.
S
005.
T
006.
U
0.502 +/- 0.080
[0.020 +/- 0.003]
Part Numbering System
0441 005. W R
SERIES
packing Code
R = Reel Pack
Amp code
0.432 +/- 0.150
[0.017 +/- 0.006]
0.60
[0.024]
quantity code
0.74
[0.029]
W = 3000 pcs
1.00
[0.039]
1.94
[0.076]
Packaging
Packaging Option
Packaging Specification
Quantity
Quantity &
Packaging Code
8mm Tape and Reel
EIA-481, IEC 60286, Part 3
3000
WR
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
3
441 Series
Introduction to Circuit Protection
Transientology
4
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.