04401.75WRA [LITTELFUSE]
Electric Fuse, 1.75A, 32VAC, 63VDC, 50A (IR), Surface Mount,;
| 型号： | 04401.75WRA |
| 厂家： | 
LITTELFUSE |
| 描述： | Electric Fuse, 1.75A, 32VAC, 63VDC, 50A (IR), Surface Mount, 电熔丝 电路保护 |
| 文件： | 总3页 (文件大小：676K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Surface Mount Fuses
Ceramic Fuse > 440 Series
440 Series, 1206 High I2t Fuse
Description
The 440 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 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.
Agency Approvals
Features
•ꢀ OperatingꢀTemperatureꢀ •ꢀ Suitableꢀforꢀbothꢀleadedꢀ
Agency
Agency File number
Ampere rAnge
.25A - 8A
from -55ºC to +150ºC
and lead-free reflow /
wave soldering
e10480
•ꢀ 100%ꢀLead-free,ꢀRoHSꢀ
compliant and Halogen- •ꢀ UltraꢀhighꢀI2t values
lr 29862
.25A - 8A
free
Applications
•ꢀ AutomotiveꢀElectronics
Electrical Characteristics for Series
•ꢀ Printers
% of Aꢀꢁꢂꢃꢂ
Aꢀꢁꢂꢃꢂ ratꢄꢅꢆ
OꢁꢂꢅꢄꢅꢆTꢄꢀꢂ at 25ºc
•ꢀ LCDꢀDisplays
•ꢀ Servers
•ꢀ Scanners
ratꢄꢅꢆ
100%
350%
0.25A - 8A
0.25A - 8A
4 hours, Minimum
5 secs., Maximum
•ꢀ DataꢀModems
•ꢀ HardꢀDiskꢀDrives
•ꢀ NotebookꢀComputers
Electrical Specifications by Item
Aꢆꢂꢅꢉꢊ Aꢁꢁꢃovaꢇs
Aꢀꢁꢂꢃꢂ
ratꢄꢅꢆ
(A)
max.
noꢀꢄꢅaꢇ
noꢀꢄꢅaꢇ noꢀꢄꢅaꢇ Voꢇtaꢆꢂ noꢀꢄꢅaꢇ powꢂꢃ
Aꢀꢁ
codꢂ
iꢅtꢂꢃꢃꢈꢁtꢄꢅꢆ ratꢄꢅꢆ
Voꢇtaꢆꢂ
rꢂsꢄstaꢅꢉꢂ mꢂꢇtꢄꢅꢆ i2t
Dꢃoꢁ At ratꢂd
Dꢄssꢄꢁatꢄoꢅ At
(Ac/Dc)1
ratꢄꢅꢆ (V)
(Ohꢀs)2
(A2Sꢂꢉ.)3
cꢈꢃꢃꢂꢅt (V)4
ratꢂd cꢈꢃꢃꢂꢅt (W)
0.25
0.375
0.5
0.75
1
1.25
1.5
1.75
2
2.5
3
3.5
4
.250
.375
.500
.750
001.
1.25
01.5
1.75
002.
02.5
003.
03.5
004.
005.
007.
008.
125
125
63
63
50
50
50
32
32
32
32
32
32
32
32
32
2.140
1.216
0.00649
0.01455
0.02642
0.09312
0.21054
0.40200
0.50652
0.3312
0.4326
0.8191
1.232
0.5260
0.4993
0.4831
0.3983
0.3457
0.3240
0.3215
0.0777
0.0792
0.0747
0.0742
0.0757
0.0709
0.0654
0.0696
0.0655
0.132
0.187
0.242
0.299
0.346
0.405
0.482
0.136
0.158
0.187
0.223
0.265
0.284
0.327
0.487
0.524
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
50 A @ 125 V AC/DC
50 A @ 63 V AC/DC
50 A @ 63 V AC/DC
0.8140
0.4624
0.3096
0.2268
0.1759
0.04518
0.03802
0.02850
0.02252
0.01845
0.01553
0.01164
0.00753
0.00634
50 A @ 50 V DC
50 A @ 50 V AC
50 A @ 32 V AC/DC
1.789
2.601
4.761
8.464
5
7
8
12.95
Notes:
1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting
Devices designed to carry rated current for 4 hours minimum. It is recommended that
devices be operated continuously at no more than 80% rated current. See “Temperature
Derating Curve”for additional derating information.
Rating tested at rated voltage with time constant < 0.8 msec.
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.
440 Series
1
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/440.html for current information.
Revised: June 23, 2011
Surface Mount Fuses
Ceramic Fuse > 440 Series
Temperature Derating Curve
AverageTime Current Curves
140
120
100
80
100
10
60
1
40
-65 -45
-25
-5
15
35
55
75
95
115 135 155
TEMPERATURE (°C)
0.1
Note:
1. Derating depicted in this curve is in addition to the standard derating of 20% for
continuous operation.
0.01
0.001
Example:ꢀ
For continuous operation at 75 degrees celsius, the fuse should be derated as follows:
I = (0.80)(0.85)IRAT = (0.68)IRAT
0.1
1.0
10.0
100.0
1000.
CURRENT IN AMPERES
Soldering Parameters
tP
rꢂflow coꢅdꢄtꢄoꢅ
-Tꢂꢀꢁꢂꢃatꢈꢃꢂ mꢄꢅ (Ts(ꢀꢄꢅ)
Pb-freeꢀassembly
TP
TL
TS(max)
TS(min)
25
Critical Zone
Ramp-up
TL to TP
)
150°C
pꢃꢂ Hꢂat -Tꢂꢀꢁꢂꢃatꢈꢃꢂ max (Ts(ꢀax)
)
200°C
tL
-Tꢄꢀꢂ (mꢄꢅ to max) (ts)
60 – 180 seconds
Ramp-down
Avꢂꢃaꢆꢂ raꢀꢁ-uꢁ ratꢂ (lꢄqꢈꢄdꢈsTꢂꢀꢁ
(Tl) to ꢁꢂak)
Preheat
3°C/second max.
tS
TS(ꢀax) toTl - raꢀꢁ-ꢈꢁ ratꢂ
5°C/second max.
217°C
-Tꢂꢀꢁꢂꢃatꢈꢃꢂ (Tl) (lꢄqꢈꢄdꢈs)
rꢂflow
time to peak temperature
(t 25ºC to peak)
-Tꢂꢀꢁꢂꢃatꢈꢃꢂ (tl)
60 – 150 seconds
260+0/-5 °C
Time
pꢂakTꢂꢀꢁꢂꢃatꢈꢃꢂ (Tp)
Tꢄꢀꢂ wꢄthꢄꢅ 5°c of aꢉtꢈaꢇ ꢁꢂak
Tꢂꢀꢁꢂꢃatꢈꢃꢂ (tꢁ)
10 – 30 seconds
raꢀꢁ-dowꢅ ratꢂ
6°C/second max.
8 minutes max.
260°C
Tꢄꢀꢂ 25°c to ꢁꢂakTꢂꢀꢁꢂꢃatꢈꢃꢂ (Tp)
Do ꢅot ꢂxꢉꢂꢂd
Wavꢂ Soꢇdꢂꢃꢄꢅꢆ
260°C, 10 seconds max.
© 2009 Littelfuse, Inc.
440 Series
2
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/440.html for current information.
Surface Mount Fuses
Ceramic Fuse > 440 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,
ConditionꢀB
Thermal Shock
MIL-STD-202,ꢀMethodꢀ213B,ꢀ
Mechanical Shock
Vibration
Moisture
Sensitivity Level
Condition A
IPC/JEDECꢀJ-STD-020C,ꢀLevelꢀ1
MIL-STD-202, Method 201A
Solderability
HumidityTest
IPC/ECA/JEDECꢀJ-STD-002B,ꢀConditionꢀC
MIL-STD-202,ꢀMethodꢀ103B,ꢀConditionsꢀD
Vibration,
High Frequency
MIL-STD-202, Method 204D,
Condition D
Dissolution of
Metallization
IPC/ECA/JEDECꢀJ-STD-002C,ꢀ
Condition D
Resistance to
Solder Heat
MIL-STD-202,ꢀMethodꢀ210F,ꢀConditionꢀB
Terminal Strength
IECꢀ60127-4
Dimensions
Part Marking System
3.200 .ꢀ117
[.ꢀ26 .001ꢁ
Aꢀꢁ codꢂ maꢃkꢄꢅꢆ codꢂ
.250
.375
.500
.750
001.
1.25
01.5
1.75
002.
02.5
003.
03.5
004.
005.
007.
008.
D
E
F
ꢅ
H
J
ꢄ
L
N
ꢀ
P
R
S
T
ꢀ.000
[.039ꢁ
ꢀ.63 + .ꢀ0/ -.20
[.064 + .004/ -.007ꢁ
X
.7ꢀ19 +.046/ -.016
[.0322 +.00ꢀ7/ -.003ꢁ
TERMINATION
W
X
Part Numbering System
0.520 .200
[.020 .007ꢁ
0440 008. W R
SERIES
ꢀ.000
[.039ꢁ
ꢀ.500
[.059ꢁ
AMP CꢀDE
ꢀ.700
[.01ꢀꢁ
ꢁꢂANTITꢃ CꢀDE
W = 3000 pcs
3.500
[.ꢀ37ꢁ
PACꢄINꢅ CꢀDE
Rꢀ=ꢀReelꢀPack
Packaging
Qꢈaꢅtꢄtꢊ &
paꢉkaꢆꢄꢅꢆ codꢂ
paꢉkaꢆꢄꢅꢆ Oꢁtꢄoꢅ
paꢉkaꢆꢄꢅꢆ Sꢁꢂꢉꢄfiꢉatꢄoꢅ
Qꢈaꢅtꢄtꢊ
8mmTape and Reel
EIA-481,ꢀIECꢀ60286,ꢀPartꢀ3
3000
WR
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/440.html for current information.
440 Series
3
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