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0440007.WRA

更新时间: 2024-01-12 07:41:16
品牌 Logo 应用领域
力特 - LITTELFUSE 电熔丝电路保护PC
页数 文件大小 规格书
3页 676K
描述
Electric Fuse, 7A, 32VAC, 32VDC, 50A (IR), Surface Mount,

0440007.WRA 技术参数

是否Rohs认证: 符合生命周期:Active
Reach Compliance Code:unknown风险等级:1.72
其他特性:PRE ARCING TIME: OPEN WITHIN 5 SEC AT 350% RATED CURRENT主体宽度:1.63 mm
主体高度:0.835 mm主体长度或直径:3.2 mm
电路保护类型:ELECTRIC FUSE焦耳积分标称:8 J
安装特点:SURFACE MOUNT最高工作温度:150 °C
最低工作温度:-55 °C包装方法:TR
物理尺寸:3.2mm x 1.63mm x 0.835mm额定分断能力:50 A
额定电流:7 A额定电压(交流):32 V
额定电压(直流):32 V参考标准:AEC-Q200; CSA; CUL; UL
表面贴装:YES端子形状:WRAPAROUND
Base Number Matches:1

0440007.WRA 数据手册

 浏览型号0440007.WRA的Datasheet PDF文件第2页浏览型号0440007.WRA的Datasheet PDF文件第3页 
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  
•ꢀ OperatingTemperatureꢀ •ꢀ 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  
OꢁꢂꢅꢄꢅTꢄꢀꢂ 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  

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