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參數資料
| 型號： | 0440.250WR |
| 元件分類： | 保險絲 |
| 英文描述： | ELECTRIC FUSE, 0.25A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT |
| 文件頁數： | 1/3頁 |
| 文件大小： | 637K |
| 代理商： | 0440.250WR |
1
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
Please refer to www.littelfuse.com/series/440.html for current information.
440 Series
Ceramic Fuse > 440 Series
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 150C 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
Agency
Agency File number
Ampere rAnge
e10480
.25A - 8A
lr 29862
.25A - 8A
Features
Electrical Characteristics for Series
OperatingTemperature
from -55C to +150C
100%Lead-free,RoHS
compliant and Halogen-
free
Suitableforbothleaded
and lead-free reflow /
wave soldering
UltrahighI2t values
% of Ampere
rating
Ampere rating
OpeningTime at 25c
100%
0.25A - 8A
4 hours, Minimum
350%
0.25A - 8A
5 secs., Maximum
Applications
Ampere
rating
(A)
Amp
code
max.
Voltage
rating (V)
interrupting rating
(Ac/Dc)1
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
0.25
.250
125
50 A @ 125 V AC/DC
2.140
0.00649
0.5260
0.132
x
X
0.375
.375
125
1.216
0.01455
0.4993
0.187
x
X
0.5
.500
63
50 A @ 63 V AC/DC
0.8140
0.02642
0.4831
0.242
x
X
0.75
.750
63
50 A @ 63 V AC/DC
0.4624
0.09312
0.3983
0.299
x
X
1
001.
50
50 A @ 50 V DC
50 A @ 50 V AC
0.3096
0.21054
0.3457
0.346
x
X
1.25
50
0.2268
0.40200
0.3240
0.405
x
X
1.5
01.5
50
0.1759
0.50652
0.3215
0.482
x
X
1.75
32
50 A @ 32 V AC/DC
0.04518
0.3312
0.0777
0.136
x
X
2
002.
32
0.03802
0.4326
0.0792
0.158
x
X
2.5
02.5
32
0.02850
0.8191
0.0747
0.187
x
X
3
003.
32
0.02252
1.232
0.0742
0.223
x
X
3.5
03.5
32
0.01845
1.789
0.0757
0.265
x
X
4
004.
32
0.01553
2.601
0.0709
0.284
x
X
5
005.
32
0.01164
4.761
0.0654
0.327
x
X
7
007.
32
0.00753
8.464
0.0696
0.487
x
X
8
008.
32
0.00634
12.95
0.0655
0.524
x
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 msec. opening time.
4. Nominal Voltage Drop measured at rated current after temperature has stabilized.
AutomotiveElectronics
LCDDisplays
Servers
NotebookComputers
Printers
Scanners
DataModems
HardDiskDrives
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.
Devices designed to be mounted with marking code facing up.
Revised: June 23, 2011
相關PDF資料 |
PDF描述 |
|---|---|
| 0440.375WR | ELECTRIC FUSE, 0.375A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT |
| 0440.500WR | ELECTRIC FUSE, 0.5A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT |
| 0440.750WR | ELECTRIC FUSE, 0.75A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT |
| 0440001.WR | ELECTRIC FUSE, 1A, 50VAC, 50VDC, 50A (IR), SURFACE MOUNT |
| 044001.5WR | ELECTRIC FUSE, 1.5A, 50VAC, 50VDC, 50A (IR), SURFACE MOUNT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 044032 | 制造商:BENNING 功能描述:TESTER INSUL/RESIST BENNING IT 100 |
| 044035 | 制造商:BENNING 功能描述:CLAMP METER BENNING CM 2 制造商:BENNING 功能描述:CLAMP METER, BENNING CM 2 制造商:BENNING 功能描述:CLAMP METER, BENNING CM 2; DMM Type:Clamp; Voltage Measuring Range DC:100V to 600V; Voltage Measuring Range AC:100V to 600V; Current Measuring Range DC:10mA to 300A; Current Measuring Range AC:10mA to 300A; Resistance Measuring ;RoHS Compliant: NA |
| 044039 | 制造商:CLAR 功能描述:SWITCH |
| 044-039 | 制造商:CLAR 功能描述:SWITCH |
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