Subminiature
Axial Lead and Cartridge Fuses
PICO
II
Time Lag Fuse 471 Series
390
w w w . l i t t e l f u s e . c o m
The PICO
II time-lag fuse is designed for applications that require
moderate inrush withstand.
For additional inrush withstand, consult the 473 Series.
RoHS Compliant
version now available, use ordering suffix `L'
(see example on data sheet).
ELECTRICAL CHARACTERISTICS:
% of Ampere
Opening
Rating
Time
100%
4 hours, Minimum
200%
120 seconds, Max.
AGENCY APPROVALS:
Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
Approved by METI from 1 through 5 amperes.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
50 amperes at 125 VAC and VDC.
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature:
55C to 125C.
Shock:
MIL-STD-202, Method 213, Test Condition I
(100 G's peak for 6 milliseconds).
Vibration:
MIL-STD-202, Method 201 (1055 Hz);
Method 204, Test Condition C (552000 Hz at 10 G's Peak).
Moisture Resistance:
MIL-STD-202, Method 106.
PHYSICAL SPECIFICATIONS:
Materials:
Encapsulated, Epoxy-Coated Body; Solder Coated
Copper Wire Leads. RoHS Compliant Product: Pure Tin coated copper
wire leads.
Flammability Rating:
UL 94V0
Soldering Parameters:
Wave Solder -- 260C, 10 seconds maximum.
Solderability:
MIL-STD-202, Method 208.
Lead Pull Force:
MIL-STD-202, Method 211, Test Condition A (will
withstand a 7 lb. axial pull test).
ORDERING INFORMATION:
100
10
1
0.1
0.01
0.001
0.05 0.1
1
10
100
1000
1/2A
1A
1 1/2A
2A
2 1/2A
3A
4A
5A
TIME IN SECONDS
CURRENT IN AMPERES
Average Time Current Curves
F
L
1 A
38.1
(1.5")
38.1
(1.5")
7.11 (.280")
REF.
EPOXY COATING
0.64 (.025")
DIA.
2.41 (.095")
DIA. REF.
Nominal
Nominal
Catalog
Ampere
Voltage
Resistance
Melting I
2
t
Number
Rating
Rating
Cold Ohms
A
2
Sec.
0471.500
1/2
125
0.189
0.159
0471 001.
1
125
0.085
0.722
0471 01.5
1
1
/
2
125
0.054
1.610
0471 002.
2
125
0.039
2.500
0471 02.5
2
1
/
2
125
0.030
4.390
0471 003.
3
125
0.023
6.960
0471 004.
4
125
0.012
10.600
0471 005.
5
125
0.008
15.400
PACKAGING SPECIFICATIONS:
Tape and Reel per EIA-296;
T1: 2.062" (52.4mm) taped spacing; 5,000 per reel.
Options:
For
RoHS Compliant
devices add the letter `L' to end of
packaging suffix. Example: 0471001.NRT1L (RoHS Compliant 1A,
5,000 per reel).
RoHS
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