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Axial Lead & Cartridge Fuses
PICO® ll > Time-Lag > 472 Series
472 Series, PICO® II Time-Lag Fuse
Description
The 472 Series PICO
®
II, 125V rated time-Lag fuse is
designed for applications that require moderate in-rush
withstand and is in a space-saving subminature package.
Features
Agency Approvals
Agency Agency File Number Ampere Range
E10480 500mA - 5A
Additional Information
Datasheet
Resources
Samples
Electrical Characteristics
Ampere Rating
(A)
Amp Code
Max
Voltage Rating
(V)
Interrupting
Rating
•Moderatein–rush
withstand
• RoHScompliant
• Wideoperating
• Smallsize
• Widerangeofcurrent
• Lowtemperature
ratings available (500mA
to 5A)
Applications
• Flat–paneldisplayTV
• Lighting
• PowerSupply
• Audio/VideoEquipment
• GameConsole
Electrical Characteristics
% of Ampere
Rating
100% 4 Hours, Min.
200% 120 Seconds, Max.
Nominal Cold
Resistance
(Ohms)
Nominal Melting
Opening Time
2
t (A2 sec)
I
temperature range
de-rating
Agency
Approvals
.500 .500 125
1. 0 0 001. 125 0.078 0.9384 x
1.50 01. 5 125 0.039 2.4081 x
2.00 002. 125 0.027 4.2363 x
2.50 02.5 125 0.0209 7.0838 x
3.00 003. 125 0.0187 9.3600 x
5.00 005. 125 0.0084 45.9000 x
50 amperes at
125 VAC and VDC
0.174 0.1927 x
Specifications are subject to change without notice.
© 2013 Littelfuse, Inc.
Revised: 12/19/13
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Axial Lead & Cartridge Fuses
000
0.5A
.0A1.5A
2.0A
2.5A
3.0A
5.0A
TIME IN SECONDS
PICO® ll > Time-Lag > 472 Series
Average Time Current CurvesTemperature Rerating Curve
Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Soldering Parameters
Recommended Process Parameters:
Wave Parameter Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature)
Temperature Minimum:
Temperature Maximum:
Preheat Time: 60-180 seconds
Solder Pot Temperature:
Solder Dwell Time: 2-5 seconds
(Typical Industry Recommendation)
100
° C
150
° C
260
° C Maximum
100
10
1
0.1
0.01
0.001
0.1 110100 1
1
CURRENT IN AMPERES
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.
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
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Product Characteristics
Drawing ES-001148
Axial Lead & Cartridge Fuses
PICO® ll > Time-Lag > 472 Series
Material
Leads: Tin-coated Copper
Encapsulated: Epoxy-Coated Body
Body: Ceramic
Product Marking
Body: Brand Logo, Current Rating,
T (time Lag fuse)
Solderability MIL-STD-202, Method 208
Lead Pull Force
MIL-STD-202, Method 211, Test Condition
A (will Withstand a 7lbs. Axial pull test)
Dimensions
62.7 (2.468")
52.4 (2.062")*
7.11 (.280")
F
1 A
L
T 2A
472 series markings
27.78
(1.094")
2.80 (.11")
6.35 (.25")
tape
27.78
(1.094")
0.64 (.025")
5.0 (.197")
Coating Diameter (max): 0.5A-3.0A: 2.80mm
5.0A: 2.90mm
6.35 (.25")
tape
Operating
Temperature
Thermal Shock
–55ºC to +125ºC with proper de–rating
MIL-STD-202, Method 213, Test Condition I
(100 G’s peak for 6 milliseconds)
MIL-STD-202, Method 201 (10-55 Hz); Method
Vibration
204, Test Condition C (55-2000 Hz at 10 G’s
Peak)
Part Numbering System
0472 xxxx N R T1 L
Series
Current Rating
Refer to Amp Code column of
Electrical Characteristics Table
Quantity
N = 5000
M = 1000
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
*T1: 52.4mm (2.062”)
Tape and Reel
Notes: * T1 dimension is defined as the length of the component between the two tapes. The full component length is 62.7mm (2.468").
EIA 296
Refer to the tables in
Part Numbering System above
Quantity &
Packaging Code
Specifications are subject to change without notice.
© 2013 Littelfuse, Inc.
Revised: 12/19/13
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