0274.062H View Datasheet(PDF) - Littelfuse, Inc
Part Name
Description
Manufacturer
0274.062H Datasheet PDF : 3 Pages
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Radial Lead Fuses
MICRO™ > Very Fast-Acting > 272/273/274/278/279 Series
272/273/274/278/279 Series, MICRO™ Very Fast-Acting Fuse
QPL
Agency Approvals
Agency
QPL
Agency File Number
E10480
LR 29862
FM02
Ampere Range
2mA - 5A
2mA - 5A
2mA - 5A
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
t Military grade available t Available from very low
t High breaking capacity
ampere of 2mA to 5A
t Clear cover option to view
fuse element status
t Plug-in with short or long
leads option
Applications
t Printed circuit boards
and similar equipment
t Electronic components
Electrical Characteristics
% of Ampere
Rating
100%
200%
Ampere Rating
1/500–5
1/500–3/10
4/10-5
Opening Time
4 Hours, Min.
5 Seconds, Max.
2 Seconds, Max.
Electrical Characteristics
Ampere
Rating
(A)
.002
.005
.010
.015
.031
.050
.062
.100
.125
.200
.250
.300
.400
.500
.600
.700
.750
.800
1.00
01.5
2.00
3.00
4.00
5.00
Amp Code
(for all
above
series)
.002
.005
.010
.015
.031
.050
.062
.100
.125
.200
.250
.300
.400
.500
.600
.700
.750
.800
001.
01.5
002.
003.
004.
005.
Max
Voltage
Rating
(V)
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Interrupting
Rating
10,000 amperes at
125 VAC/VDC.
Nominal
Cold
Resistance
(Ohms)
2200
280
80.0
44.0
16.0
3.20
2.32
1.25
1.0
2.30
1.75
1.25
0.227
0.167
0.430
0.324
0.293
0.271
0.0880
0.0578
0.0425
0.0275
0.0202
0.0156
Nominal
Melting
I2t (A2 sec)
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
0.0716
0.0411
0.0710
0.0900
0.113
0.0648
0.160
0.300
0.759
1.38
2.21
© 2009 Littelfuse, Inc.
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.
131
Revised: January 7, 2009
Agency Approvals
QPL
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272/273/274/278/279 Series
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