Axial Lead & Cartridge Fuses
PICO
®
ll > Very Fast-Acting > 263 Series
263 Series, PICO
®
II 250 Volt, Very Fast-Acting Fuse
Description
PS
E
The PICO
®
II 263 Series Fuse is a specially designed
axial leaded fuse that achieves a 250V rating in a small
package.
Features
• 250V rating
• Very fast–acting
• Small size
• Wide range of current
rating available (62mA to
5A)
Ampere Range
• RoHS compliant &
Halogen-free
• Wide operating
temperature range
• Low temperature
de-rating
Agency Approvals
Agency
Agency File Number
Applications
• Lighting system
• Power supply
• LCD/PDP TV
• LCD monitor
Electrical Characteristics
% of Ampere
Rating
100%
200%
Opening Time
4 Hours,
Min.
1 Second,
Max.
0.1 Second,
Max.
E10480
PS
E
62mA - 5A
1A - 5A
125mA - 5A
• Office automation
machines
• Audio/Video system
• Medical equipment
JET 1896-31007-1001
LR 29862
Additional Information
Datasheet
Resources
Samples
300%
Electrical Characteristics
Ampere
Rating
(A)
0.062
0.125
0.250
0.375
0.500
0.750
1.00
1.50
2.00
2.50
3.00
3.50
4.00
5.00
max
Voltage
Rating
(V)
250
250
250
250
250
250
250
250
250
250
250
250
250
250
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
5.50
1.75
0.715
0.391
0.332
0.150
0.105
0.0635
0.0444
0.0340
0.0274
0.0224
0.0193
0.0145
Nominal
melting
2
t (A
2
sec)
I
0.000192
0.00251
0.0165
0.0444
0.084
0.0411
0.087
0.398
0.74
1.197
1.77
2.33
3.08
5.55
Nom
Voltage Drop
(mV)
0.74
0.3
0.235
0.195
0.302
0.176
0.165
0.148
0.137
0.128
0.1225
0.1175
0.1125
0.1065
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Agency Approvals
PS
E
Amp Code
.062
.125
.250
.375
.500
.750
001.
01.5
002.
02.5
003.
03.5
004.
005.
50 amperes
at 250 VAC
PSE: 100
amperes
at 125 VAC.
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
PICO
®
ll > Very Fast-Acting > 263 Series
Temperature Rerating Curve
Average Time Current Curves
3/8A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
1
10
CURRENT IN AMPERES
1/16A
100
10
TIME IN SECONDS
1
0.1
Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
1/8A
0.01
Soldering Parameters
Recommended Process Parameters:
Wave parameter
preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
0.001
0.05 0.1
1/4A
100
lead-Free Recommendation
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Solder pot Temperature:
Solder Dwell Time:
100
°
C
150
°
C
60-180 seconds
260
°
C Maximum
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.
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
PICO
®
ll > Very Fast-Acting > 263 Series
Product Characteristics
Encapsulated, Epoxy-Coated
Body: Solder Coated Copper Leads.
RoHS compliant
Product: Pure Tin–coated Copper wire
leads
MIL-STD-202. Method 208.
Body marking, current rating and logo
–55ºC to +125ºC
MIL-STD-202, Method 213, Test Condition
I (100 G’s peak for 6 milliseconds)
MIL
-STD-202, Method 201 (10–55
Hz); MIL
-STD-202, Method 204, Test
Condition C (55–2000 Hz at 10 G’s
Peak)
MIL
-STD-202, Method 101,
Test Condition B (48 hrs.)
MIL
-STD-202, Method 302,
Test Condition A (10,000 ohms
minimum at 100 volts)
MIL
-STD-202, Method 210,
Test Condition C (10 sec. at 260ºC)
MIL
-STD-202, Method 107 Test
,
Condition B (–55ºC to 125ºC)
MIL
-STD-202, Method 106
MIL
-STD-202, Method 211,
Test Condition A (will withstand 7 lb.
axial pull test)
Materials
Vibration
Salt Spray
Insulation Resistance
(After Opening):
Resistance to Soldering
Heat
Thermal Shock
Moisture Resistance
Lead Pull Force
Solderability
Product Marking
Operating
Temperature
Shock
Dimensions
62.7 (2.468")
27.78
(1.094")
0.64 (.025")
52.4 (2.062")*
7.11 (.280")
27.78
(1.094")
3.94 (.16")
MAX
Part Numbering System
0263 xxxx W R T1 L
Series
Current Rating
6.35 (.25")
tape
F
L
3 1/2 A
250 V
F
L
6.35 (.25")
tape
5.0 (.197")
Refer to Amp Code column of
Electrical Characteristics Table
3 1/2 A
250 V
Quantity
W = 3000
M = 1000
H = 100
Type of Packaging
R = Reel
A = Ammo Pack
X = Loose Pack
Lead Length
T1: 52.4mm (2.062”)*
RoHS + HF
Packaging
packaging Option
T1: 52.4mm (2.062”)
Tape and Reel
packaging Specification
EIA 296
Quantity
Quantity &
packaging Code
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").
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
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