Radial Lead Fuses
MICRO™ > Very Fast-Acting > 262/268/269 Series
QPL
262/268/269 Series, MICRO™ Very Fast-Acting Fuse (High-Reliability)
Description
The 262/268/269 Series are high–reliability micro
fuses, with a 125V rating, very fast-acting type with
high breaking capacity. This series is listed under the
Department of Defense Quality Product List.
Features
tꢀꢀ.JMJUBSZꢀHSBEFꢀBWBJMBCMF
tꢀ "WBJMBCMFꢀJOꢀQMVHꢁJOꢀBOEꢀ
radial leaded
tꢀ "WBJMBCMFꢀGSPNꢀWFSZꢀMPXꢀ
ampere of 2mA to 5A
Applications
Agency Approvals
Protection of electrical, electronic, and communication
equipment having printed circuit boards (PCBs) usable
in direct current (DC) and alternating current (AC) (up
to 400 hertz (Hz)) circuits capable of withstanding and
functioning in extreme conditions found in Spacecraft or
Military applications as described in MIL-PRF-23419.
Agency
Agency File Number
Ampere Range
E10480
LR 29862
FM07A
2mA - 5A
2mA - 5A
2mA - 5A
Electrical Characteristics
QPL
% of Ampere
Ampere Rating
OpeningTime
Rating
100%
1/500–15
1/500–3/10
4/10-5
4 Hours, Min.
5 Seconds, Max.
2 Seconds, Max.
200%
Electrical Characteristics
Max
Agency Approvals
Ampere
Rating
(A)
Nominal Cold
Resistance
(Ohms)
Voltage
Rating
(V)
Interrupting
Amp Code
Rating
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
.002
.005
.010
.015
.031
.050
.062
.100
.125
.200
.250
.300
.400
.500
.600
.700
.750
.800
001.
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
2000
280
94.0
44.0
16.45
3.20
2.25
1.17
1.0
2.30
1.75
1.25
10,000 amperes at
125 VAC/VDC
0.227
0.167
0.140
0.114
0.104
0.094
0.100
0.063
0.046
0.034
0.019
0.018
2.00
3.00
4.00
5.00
002.
003.
004.
005.
Please contact Littelfuse for AverageTime Current Curve.
© 2009 Littelfuse, Inc.
262/268/269 Series
127
Revised: January 7, 2009
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/262.html,
/268.html or /269.html for current information.