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产品型号0273005.H的Datasheet PDF文件预览

Radial Lead Fuses  
MICRO™ > Very Fast-Acting > 272/273/274/278/279 Series  
QPL  
272/273/274/278/279 Series, MICRO™ Very Fast-Acting Fuse  
Description  
Developed originally for the U.S. Space Program,  
MICRO™ fuse provides reliability in a compact design.  
The MICRO™ fuse is available in plug–in or radial lead  
styles and a complete range of ampere ratings from  
1/500 to 5A to suit a wide variety of design needs.  
Features  
tꢀ Military grade available  
tꢀ High breaking capacity  
tꢀ Available from very low  
ampere of 2mA to 5A  
tꢀ Plug-in with short or long  
tꢀ Clear cover option to view  
leads option  
fuse element status  
Agency Approvals  
Applications  
Agency  
Agency File Number  
Ampere Range  
tꢀ Printed circuit boards  
tꢀ Electronic components  
E10480  
LR 29862  
FM02  
2mA - 5A  
and similar equipment  
2mA - 5A  
2mA - 5A  
Electrical Characteristics  
QPL  
% of Ampere  
Rating  
Ampere Rating  
1/500–5  
OpeningTime  
100%  
4 Hours, Min.  
5 Seconds, Max.  
2 Seconds, Max.  
1/500–3/10  
4/10-5  
200%  
Electrical Characteristics  
Amp Code  
Ampere  
Rating  
(A)  
Max  
Nominal  
Agency Approvals  
Nominal  
Melting  
(for all  
above  
series)  
.002  
.005  
.010  
Voltage  
Rating  
(V)  
Interrupting  
Rating  
Cold  
Resistance  
(Ohms)  
2200  
I2t (A2 sec)  
QPL  
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
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
X
X
X
X
X
X
X
X
.002  
.005  
.010  
.015  
.031  
.050  
.062  
.100  
.125  
.200  
.250  
.300  
.400  
.500  
.600  
.700  
.750  
.800  
1.00  
01.5  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
125  
0.00000000845  
0.00000000810  
0.000000462  
0.00000123  
0.00000810  
0.0000666  
0.000115  
0.000385  
0.000691  
0.00409  
0.00640  
0.00945  
0.0251  
280  
80.0  
44.0  
16.0  
3.20  
2.32  
1.25  
1.0  
.015  
.031  
.050  
.062  
.100  
.125  
.200  
.250  
.300  
.400  
.500  
.600  
.700  
.750  
.800  
001.  
2.30  
1.75  
1.25  
10,000 amperes at  
125 VAC/VDC.  
0.227  
0.167  
0.430  
0.324  
0.293  
0.271  
0.0880  
0.0578  
0.0425  
0.0275  
0.0202  
0.0156  
0.0716  
0.0411  
0.0710  
0.0900  
0.113  
0.0648  
0.160  
0.300  
01.5  
2.00  
3.00  
4.00  
5.00  
002.  
003.  
004.  
005.  
0.759  
1.38  
2.21  
© 2009 Littelfuse, Inc.  
272/273/274/278/279 Series  
131  
Revised: January 7, 2009  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/272.html, /273.html, /274.html,  
/278.html or /279.html for current information.  
Radial Lead Fuses  
MICRO™ > Very Fast-Acting > 272/273/274/278/279 Series  
Temperature Rerating Curve  
AverageTime Current Curves  
100  
10  
1
0.1  
0.01  
0.001  
0.005 0.01  
0.1  
1
10  
100  
CURRENT IN AMPERES  
Soldering Parameters -Wave Soldering  
300  
280  
260  
240  
220  
200  
180  
160  
140  
120  
100  
80  
Recommended Process Parameters:  
Wave Parameter  
Preheat:  
(Depends on Flux ActivationTemperature)  
Temperature Minimum:  
Temperature Maximum:  
PreheatTime:  
Lead-Free Recommendation  
(Typical Industry Recommendation)  
100° C  
150° C  
60-180 seconds  
Solder PotTemperature:  
Solder DwellTime:  
260° C Maximum  
2-5 seconds  
60  
40  
20  
0
Recommended Hand-Solder Parameters:  
Time (Seconds)  
Solder IronTemperature: 350° C +/- 5°C  
HeatingTime: 5 seconds max.  
Preheat Time  
Dwell Time  
Cooling Time  
Note: These devices are not recommended for IR or  
Convection Reflow process.  
© 2009 Littelfuse, Inc.  
272/273/274/278/279 Series  
132  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/272.html, /273.html, /274.html,  
/278.html or /279.html for current information.  
Revised: January 7, 2009  
Radial Lead Fuses  
MICRO™ > Very Fast-Acting > 272/273/274/278/279 Series  
Dimensions  
Product Characteristics  
Operating Temperature:  
272 000 Series  
(Short Lead, Metal Cap)  
273 and 279: –55ºC to +85ºC;  
272 and 278: –55ºC to +125ºC  
5.97  
(.235")  
7.30  
(.29")  
4.32  
273 Series is available in CSA LR  
29862. Military QPL type (FM02).  
To order, change 273 to 274.  
(.17")  
Fuses to MIL SPEC  
Materials  
2.54 (.10")  
272 and 278 series cap:  
Nickel Plated Brass  
278 000 Series  
273, 274 and 279 series cap:  
Mirror polished Polycarbonate  
(Long Lead, Metal Cap)  
5.97  
7.30  
Base: R-4 Ryton  
(.235")  
(.29")  
25.4 (1.0")  
Pins: Tin Plated Copper  
2.54 (.10")  
Current and voltage ratings stamped  
on cap  
Product Marking  
273 000 and 274 000 Series  
(Short Lead, Clear Plastic Cap)  
Part Numbering System  
6.35  
8.89  
(.35")  
4.32  
(.25")  
(.17")  
0273 xxxx V  
2.54 (.10")  
Series  
Amp. Code  
279 000 Series  
Refer to Amp Code column of  
(Long Lead, Clear Plastic Cap)  
6.35  
Electrical CharacteristicsTable  
8.89  
(.35")  
(.25")  
25.4 (1.0")  
Packaging Code  
V = 5  
H = 100  
2.54 (.10")  
NOTE: Amperage and voltage rating stamped on cap.  
Leads are tin plated copper; .025" diameter.  
Packaging  
Quantity &  
Quantity  
Packaging Option  
Packaging Specification  
Packaging Code  
Bulk  
Bulk  
N / A  
N / A  
5
V
100  
H
© 2009 Littelfuse, Inc.  
272/273/274/278/279 Series  
133  
Revised: January 7, 2009  
Specifications are subject to change without notice.  
Please refer to www.littelfuse.com/series/272.html, /273.html, /274.html,  
/278.html or /279.html for current information.  
配单直通车
0273005.H产品参数
型号:0273005.H
是否Rohs认证: 符合
生命周期:Active
IHS 制造商:LITTELFUSE INC
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8536.10.00.40
风险等级:1.33
熔断特性:VERY FAST
主体高度:8.89 mm
主体长度或直径:6.35 mm
电路保护类型:ELECTRIC FUSE
保险丝尺寸:MICRO
JESD-609代码:e3
焦耳积分标称:2 J
安装特点:THROUGH HOLE
最高工作温度:85 °C
最低工作温度:-55 °C
包装方法:BULK
物理尺寸:6.35mm x 8.89mm
额定分断能力:10000 A
额定电流:5 A
额定电压:125 V
额定电压(交流):125 V
额定电压(直流):125 V
参考标准:CSA; QPL; UL
表面贴装:NO
端子面层:Tin (Sn)
端子形状:PIN WIRE
断开时间或延迟:14400 s
Base Number Matches:1
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