Datasheet

Axial Lead & Cartridge Fuses
PICO® ll > Time-Lag Fuse > 471 Series
471 Series, PICO® II Time-Lag Fuse
RoHS
PS
E
Description
The 471 Series PICO® II Time-Lag Fuse is designed for
applications that require moderate in–rush withstand
and is in a space-saving subminiature package.
Features
PS
E
• RoHS compliant
•Small size
• Wide operating
temperature range
• Halogen-free available
•Wide range of current
ratings available (0.500A
to 5A)
Agency Approvals
Agency
• Moderate in–rush
withstand
Agency File Number
Ampere Range
E10480
0.500A - 5A
29862
0.500A - 2.5A
JET 1896-31007-1004
1A - 5A
• Low temperature
de-rating
Applications
• Flat–panel display TV
• Medical equipments
• LCD monitor
• Industrial equipments
• Lighting systems
Electrical Characteristics
Additional Information
Datasheet
Resources
% of Ampere
Rating
Opening Time
100%
4 Hours, Min.
200%
120 Seconds, Max.
Samples
Electrical Characteristics
Ampere
Rating
(A)
Amp Code
Max
Voltage
Rating
(V)
.500
.500
1.00
1.50
Agency Approvals
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
2
I t (A2 sec)
125
0.1890
0.159
X
X
001.
125
0.0851
0.722
X
X
X
01.5
125
0.5350
1.610
X
X
X
2.00
002.
125
0.3850
2.500
X
X
X
2.50
02.5
125
0.0300
4.390
X
X
X
3.00
003.
125
0.0231
6.960
X
X
3.50
03.5
125
0.0180
9.900
X
X
4.00
004.
125
0.1310
10.600
X
X
5.00
005.
125
0.0084
15.400
X
X
Interrupting
Rating
[email protected]/DC
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 11/11/15
PS
E
Axial Lead & Cartridge Fuses
PICO® ll > Time-Lag Fuse > 471 Series
100
1A
1.5A
2A
2.5A
3A
4A
5A
Average Time Current Curves
0.5A
Temperature Re-rating Curve
TIME IN SECONDS
10
1
0.1
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.01
0.001
0.1
Soldering Parameters
1
10
CURRENT IN AMPERES
100
1000
Recommended Process Parameters:
Wave Parameter
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 > Time-Lag Fuse > 471 Series
Product Characteristics
Encapsulated, Epoxy-Coated Body;
Solder Coated Copper wire leads;
RoHS compliant Product: Pure Tin-coated
Copper wire leads
Materials
Flammability
Rating
UL 94V-0
Solderability
MIL-STD-202, Method 208
Lead Pull Force
MIL-STD-202, Method 211, Test Condition
A (will withstand a 7 lbs. axial pull test)
Operating Temperature
–55ºC to +125ºC (Consider re-rating)
Shock
MIL-STD-202, Method 213, Test
Condition I (100 G’s peak for 6
milliseconds)
Vibration
MIL-STD-202, Method 201 (10–55
Hz); Method 204, Test Condition C
(55–2000 Hz at 10 G’s Peak)
Moisture Resistance
MIL-STD-202, Method 106
Resistance to Soldering
Heat
Withstands 60 seconds above
200ºC and up to 260ºC, maximum
Part Numbering System
Dimensions
0471 xxxx N R T1 L
471 Series (RoHS Version) Markings
62.7 (2.468")
27.78
(1.094")
0.64 (.025")
6.35 (.25")
tape
52.4 (2.062")*
7.11 (.280")
LF
1A
27.78
(1.094")
2.8 (.110")
MAX
Series
Current Rating
6.35 (.25")
tape
5.0 (.197")
T
Refer to Amp Code column of
Electrical Characteristics Table
Quantity
1A
N = 5000
P = 2000
471 Series (RoHS and Halogen-free Version) Markings
27.78
(1.094")
0.64 (.025")
6.35 (.25")
tape
52.4 (2.062")*
7.11 (.280")
LF
1A
27.78
(1.094")
2.8 (.110")
MAX
Lead Length
T1: 52.4mm (2.062”)*
6.35 (.25")
tape
5.0 (.197")
T
Type of Packaging
R = Reel
A = Ammo Pack
62.7 (2.468")
RoHS + HF
1A
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