02.5WR [LITTELFUSE]
Electric Fuse, ELECTRIC FUSE, 2.5A, 32VAC, 32VDC, 50A (IR), SURFACE MOUNT, HALOGEN FREE AND ROHS COMPLIANT;
| 型号： | 02.5WR |
| 厂家： | 
LITTELFUSE |
| 描述： | Electric Fuse, ELECTRIC FUSE, 2.5A, 32VAC, 32VDC, 50A (IR), SURFACE MOUNT, HALOGEN FREE AND ROHS COMPLIANT |
| 文件： | 总4页 (文件大小：154K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
The general design ensures excellent temperature stability
and performance reliability.
This high I²t fuse series is designed to have ultra high inrush
current withstand capability to avoid nuisance fuse open.
Features
Agency Approvals
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AGENCY
AGENCY FILE NUMBER
AMPERE RANGE
2A - 6A
from -55ºC to 150ºC
and lead-free reflow /
wave soldering
E10480
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RoHS compliant
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Pending
2A - 6A
Electrical Characteristics
Applications
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% of Ampere
Ampere Rating
OpeningTime at 25ºC
Rating
100%
350%
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2A - 6A
2A - 6A
4 Hours Minimum
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5 Seconds Maximum
Electrical Specifications by Item
Agency Approvals
Ampere
Rating
(A)
Nominal
Nominal
Nominal Voltage
Drop At Rated
Current (V)4
Nominal Power
Amp Max.Voltage
Interrupting
Rating
Resistance Melting I2t
Dissipation At
Code
Rating (V)
(Ohms)2
(A2Sec.)3
Rated Current (W)
2
2.5
3
002.
02.5
003.
03.5
004.
005.
006.
32
32
32
32
32
32
32
0.0320
0.0200
0.0158
0.0117
0.0097
0.0073
0.0056
0.3103
0.5520
0.8165
0.9438
1.2659
1.6287
2.6049
0.0551
0.0534
0.0531
0.0468
0.0475
0.0472
0.0464
0.110
0.134
0.159
0.164
0.190
0.236
0.278
X
X
X
X
X
X
X
1
1
1
1
1
1
1
3.5
4
50 A @ 32 VDC
5
6
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.
441 Series
1
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
Revised: May 17, 2010
Surface Mount Fuses
Ceramic Fuse > 441 Series
Temperature Rerating Curve
AverageTime Current Curves
100
140
120
100
80
10
1
60
40
-65 -45
-25
-5
15
35
55
75
95
115 135 155
0.1
TEMPERATURE (°C)
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
tP
Reflow Condition
-Temperature Min (Ts(min)
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TP
Critical Zone
L to TP
Ramp-up
T
)
150°C
TL
TS(max)
Pre Heat -Temperature Max (Ts(max)
-Time (Min to Max) (ts)
)
200°C
tL
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Ramp-down
Average Ramp-up Rate (LiquidusTemp
(TL) to peak)
Preheat
3°C/second max.
TS(min)
tS
TS(max) toTL - Ramp-up Rate
5°C/second max.
217°C
-Temperature (TL) (Liquidus)
Reflow
25
time to peak temperature
(t 25ºC to peak)
-Temperature (tL)
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260+0/-5 °C
Time
PeakTemperature (TP)
Time within 5°C of actual peak
Temperature (tp)
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Ramp-down Rate
6°C/second max.
8 minutes max.
260°C
Time 25°C to peakTemperature (TP)
Do not exceed
Wave Soldering
260°C, 10 seconds max.
© 2009 Littelfuse, Inc.
441 Series
2
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 Resistance
MIL-STD-202, Method 106G
Body: Advanced Ceramic
Terminations: Ag / Ni / Sn (100% Lead-free)
Element Cover Coating: Lead-free Glass
Materials
MIL-STD-202, Method 107G,
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Thermal Shock
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Moisture
Sensitivity Level
Mechanical Shock
Vibration
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Condition A
MIL-STD-202, Method 201A
Solderability
Humidity
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Vibration,
High Frequency
MIL-STD-202, Method 204D,
Condition D
Dissolution of
Metallization
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Condition D
ESD Immunity
Resistance to
Solder Heat
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Terminal Strength
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Dimensions
Part Marking System
Amp Code Marking Code
0.530 +/- 0.150
[0.021 +/- 0.006]
1.54 +/- 0.150
[0.061 +/- 0.006]
002.
02.5
003.
03.5
004.
005.
006.
N
O
P
0.850 +/- 0.150
[0.033 +/- 0.006]
R
S
T
U
0.502 +/- 0.080
[0.020 +/- 0.003]
Part Numbering System
0441 005. W R
SERIES
PACKING CODE
3ꢀꢐꢀ3FFMꢀ1BDL
AMP CODE
0.432 +/- 0.150
[0.017 +/- 0.006]
QUANTITY CODE
0.60
[0.024]
0.74
[0.029]
W = 3000 pcs
1.00
[0.039]
1.94
[0.076]
Packaging
Quantity &
Packaging Code
Packaging Option
Packaging Specification
Quantity
8mmTape and Reel
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3000
WR
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/441.html for current information.
441 Series
3
© 2009 Littelfuse, Inc.
4
Specifications are subject to change without notice.
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