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参数资料
| 型号： | 04371.75WR |
| 元件分类： | 保险丝 |
| 英文描述： | FAST BLOW ELECTRIC FUSE, 1.75A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT |
| 封装： | HALOGEN FREE AND ROHS COMPLIANT |
| 文件页数： | 1/3页 |
| 文件大小： | 504K |
| 代理商： | 04371.75WR |
17
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
Please refer to www.littelfuse.com/series/437.html for current information.
437 Series
Ceramic Fuse > 437 Series
437
Series
437 Series – 1206 Fast-Acting 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 150C).
The general design ensures excellent temperature stability
and performance reliability.
In addition to this, the high It values typical of the
Littelfuse Ceramic Fuse family ensure high inrush current
withstand capability.
Agency Approvals
Agency
Agency File number
Ampere rAnge
e10480
0.250A ~ 8A
lr29862
0.250A ~ 8A
Features
Electrical Characteristics for Series
OperatingTemperature
from -55C to +150C
100%Lead-freeand
RoHS compliant
Suitableforbothleaded
and lead-free reflow /
wave soldering
% of Ampere
rating
Ampere rating
OpeningTime at 25c
100%
250mA - 8A
4 hours, Minimum
250%
750mA - 8A
5 seconds, Maximum
350%
250mA -500mA
5 seconds, Maximum
350%
750mA - 8A
1 second, Maximum
Applications
Ampere
rating
(A)
Amp
code
max.
Voltage
rating (V)
interrupting rating
nominal
resistance
(Ohms)2
nominal
melting i2t
(A2Sec.)3
nominal Voltage
Drop At rated
current (V)4
nominal power
Dissipation At
rated current (W)
Agency Approvals
250mA
.250
125
50 A @ 125 V AC/DC
2.290
0.003
0.78
0.195
x
375mA
.375
125
1.330
0.010
0.60
0.225
x
500mA .500
63
50 A @ 63 V AC/DC
0.908
0.018
0.52
0.260
x
750mA
.750
63
0.665
0.064
0.45
0.335
x
1A
001.
63
0.360
0.100
0.41
0.415
x
1.25A
1.25
63
0.318
0.256
0.40
0.496
x
1.5A
01.5
63
0.209
0.324
0.39
0.579
x
1.75A
1.75
63
0.0703
0.075
0.27
0.474
x
2A
002.
63
0.058
0.144
0.17
0.345
x
2.5A
02.5
32
50 A @ 32 V AC/35 V DC
0.043
0.225
0.14
0.363
x
3A
003.
32
0.033
0.400
0.15
0.462
x
3.5A
03.5
32
0.027
0.576
0.16
0.560
x
4A
004.
32
0.022
1.024
0.16
0.618
x
5A
005.
32
0.016
1.936
0.09
0.484
x
7A
007.
32
0.010
4.900
0.11
0.760
x
8A
008.
32
0.0084
6.400
0.067
0.539
x
Electrical Specifications by Item
Notes:
1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting
Rating tested at rated voltage with time constant < 0.8 msec.
2. Nominal Resistance measured with < 10% rated current.
3. Nominal Melting It measured at 1 msecs. opening time.
4. Nominal Voltage Drop measured at rated current after temperature has stabilized.
AutomotiveElectronics
LCDDisplays
Servers
Printers
Scanners
DataModems
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
Rerating Curve”for additional rerating information.
Devices designed to be mounted with marking code facing up.
Revised: June 23, 2011
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