Littelfuse 473 Series User Manual
Axial lead & cartridge fuses, 473 series, pico, Ii, slo-blo
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
PICO
®
ll > Slo-Blo
®
> 473 Series
473 Series, PICO
®
II, Slo-Blo
®
Fuse
Description
The PICO
®
II Slo-Blo
®
Fuse combines time-delay
performance characteristics with the proven reliability of
a PICO
®
Fuse.
Agency Approvals
Agency
Agency File Number
Ampere Range
E10480
375mA - 7A
LR 29862
375mA - 7A
PS
E
JET 1896-31007-1001
1A - 5A
Features
Electrical Characteristics
• Enhanced inrush
withstand
• Small size
• Wide range of current
ratings (375mA - 7A)
• RoHS compliant
• Wide operating
temperature range
• Low temperature
de-rating)
% of Ampere
Rating
Opening Time
100%
4 Hours, Min.
200%
1 Sec., Min.; 60 Sec., Max.
300%
0.2 Sec., Min.; 3 Sec., Max.
800%
0.02 Sec., Min.; 0.1 Sec., Max.
Applications
Ampere
Rating
(A)
Amp
Code
max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
melting
I
2
t (A
2
sec)
Nom
Voltage Drop
(mV)
Agency Approvals
PS
E
0.375
.375
125
50 amperes at 125 VDC/
VAC
1.7400
0.085
0.840
X
X
0.500
.500
125
1.1300
0.210
0.775
X
X
0.750
.750
125
0.4600
0.760
0.429
X
X
1.00
001.
125
0.3000
2.010
0.353
X
X
X
1.50
01.5
125
0.1160
3.940
0.208
X
X
X
2.00
002.
125
0.0712
7.600
0.180
X
X
X
2.25
2.25
125
0.0630
9.280
0.164
X
X
X
2.50
02.5
125
0.0520
13.00
0.153
X
X
X
3.00
003.
125
0.0380
21.00
0.140
X
X
X
3.50
03.5
125
0.0240
26.80
0.094
X
X
X
4.00
004.
125
0.0194
35.00
0.086
X
X
X
5.00
005.
125
0.0133
54.80
0.074
X
X
X
7.00
007.
125
0.0092
105.00
0.070
X
X
Electrical Characteristics
• Flat–panel Display TV
• LCD monitor
• Lighting system
• Medical equipment
• Industrial equipment
PS
E
Additional Information