Datasheet

Axial Lead & Cartridge Fuses
PICO® ll > Slo-Blo® Fuse > 473 Series
473 Series, PICO® II Slo-Blo® Fuse
PS
E
RoHS
Description
The PICO® II Slo-Blo® Fuse combines time-delay
performance characteristics with the proven reliability of
a PICO® Fuse.
Features
• Enhanced inrush
withstand
• RoHS compliant
• Small size
• Wide operating
temperature range
• Wide range of current
ratings (0.375A - 7A)
• Low temperature
rerating
Agency Approvals
Agency
PS
E
Agency File Number
Ampere Range
E10480
0.375A - 7A
29862
0.375A - 7A
JET 1896-31007-1004
1A - 5A
Applications
Resources
• Medical equipment
• LCD monitor
• Industrial equipment
• Lighting system
Electrical Characteristics
Additional Information
Datasheet
• Flat–panel Display TV
Samples
% 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.
Electrical Characteristics
Ampere
Rating
(A)
Amp
Code
0.375
0.500
0.750
1.00
1.50
2.00
2.25
2.50
3.00
3.50
4.00
5.00
7.00
.375
.500
.750
001.
01.5
002.
2.25
02.5
003.
03.5
004.
005.
007.
Max
Voltage
Rating
(V)
125
125
125
125
125
125
125
125
125
125
125
125
125
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I2t (A2 sec)
Nom
Voltage Drop
(mV)
[email protected]/DC
1.7550
1.1370
0.4900
0.3000
0.1170
0.0720
0.0640
0.0520
0.0380
0.0240
0.0200
0.0133
0.0092
0.085
0.210
0.760
2.010
3.940
7.600
9.280
13.00
21.00
26.80
35.00
54.80
105.00
0.840
0.775
0.429
0.353
0.208
0.180
0.164
0.153
0.140
0.094
0.086
0.074
0.070
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 11/11/15
Agency Approvals
PS
E
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
Axial Lead & Cartridge Fuses
PICO® ll > Slo-Blo® Fuse > 473 Series
Average Time Current Curves
.375A
.50A
.75A
1.0A
1.5A
2.0A
2.5A
3.0A
3.5A
4.0A
5.0A
7.0A
Temperature Re-rating Curve
1000
TIME IN SECONDS
100
10
1
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.1
Soldering Parameters
Recommended Process Parameters:
Wave Parameter
0.01
0.1
1
10
100
CURRENT IN AMPERES
1000
Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
Temperature Minimum:
100°C
Temperature Maximum:
Preheat Time:
150°C
60-180 seconds
Solder Pot Temperature:
260°C Maximum
Solder Dwell Time:
2-5 seconds
Recommended Hand-Solder Parameters:
Solder Iron Temperature: 350°C +/- 5°C
Heating Time: 5 seconds max.
Note: These devices are not recommended for IR or
Convection Reflow process.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/11/15
Axial Lead & Cartridge Fuses
PICO® ll > Slo-Blo® Fuse > 473 Series
Product Characteristics
Materials
Encapsulated, Epoxy-Coated Body;
Solder Coated Copper wire leads;
RoHS compliant Product: Pure Tin-coated
Copper wire leads
Vibration
MIL-STD-202, Method 201 (10–55
Hz); MIL-STD-202, Method 204, Test
Condition C (55–2000 Hz at 10 G’s
Peak)
Solderability
MIL-STD-202, Method 208
Salt Spray
Lead Pull Force
MIL-STD-202, Method 211, Test Condition
A (will withstand 7 lbs. axial pull test)
MIL-STD-202, Method 101, Test
Condition B
Operating
Temperature
Insulation Resistance
(After Opening):
MIL-STD-202, Method 302, (10,000
ohms minimum at 100 volts)
–55ºC to +125ºC (Consider re-rating)
MIL-STD-202, Method 210, Test
Condition C (20 sec at 260ºC)
Shock
MIL-STD-202, Method 213, Test Condition
I (100 G’s peak for 6 milliseconds)
Resistance to Soldering
Heat
Thermal Shock
MIL-STD-202, Method 107, Test
Condition B (–65ºC to 125ºC)
Moisture Resistance
MIL-STD-202, Method 106 (90–98%
RH), Heat (65ºC)
Dimensions
Part Numbering System
0473 xxxx Y R T1 L
62.7 (2.468")
27.78
(1.094")
52.4 (2.062")*
7.11 (.280")
0.64 (.025")
6.35 (.25")
tape
F
1A L
27.78
(1.094")
Series
3.43 (.135")
MAX
Current Rating
6.35 (.25")
tape
5.0 (.197")
F
1A L
Refer to Amp Code column of
Electrical Characteristics Table
Quantity
Y = 4000
P = 2000
M = 1000
473 series markings
Type of Packaging
R = Reel
A = Ammo Pack
X = Loose Pack
Lead Length
T1: 52.4mm (2.062”)*
RoHS + HF
Packaging
Packaging Option
Packaging Specification
Quantity &
Packaging Code
*T1: 52.4mm (2.062") Tape and Reel
EIA 296
Please refer to available quantities
above in "Part Numbering System”
Notes: * T1 dimension is defined as the length of the component between the two tapes. The full component length is 62.7mm (2.468").
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/11/15