Axial Lead and Cartridge Fuses
Subminiature
RoHS
PICO
®
II 250 Volt
Very Fast-Acting Fuse 263 Series
®
®
The PICO
®
II 250 Volt Fuse is a specially designed axial leaded fuse that
achieves a 250 volt rating in a small package.
•
RoHS Compliant
version now available, use ordering suffix ‘L’
(see example on data sheet).
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
100%
200%
300%
Opening
Time
4 hours,
Minimum
1 second,
Maximum
0.1 second,
Maximum
AGENCY APPROVALS:
Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATING:
50 amperes at 250 VAC.
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature:
–55°C to 125°C.
Shock:
MIL-STD-202, Method 213, Test Condition I
(100 G’s peak for 6 milliseconds).
38.1
(1.5")
7.62 (.300")
REF.
38.1
(1.5")
3.683 (.145")
DIA. REF.
F
L
0.64 (.025")
DIA.
3 1/2 A
250 V
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).
Salt Spray:
MIL-STD-202, Method 101, Test Condition B (48 hrs.).
Insulation Resistance (After Opening):
MIL-STD-202, Method
302, Test Condition A (10,000 ohms minimum at 100 volts).
PACKAGING SPECIFICATIONS:
Tape and Reel per EIA-296;
T1: 2.062" (52.4mm) taped spacing; 3,000 per reel.
Options:
For
RoHS Compliant
devices add the letter ‘L’ to end of
packaging suffix. Example: 263001. WRT1L (RoHS Compliant 1A,
3,000 per reel).
Average Time Current Curves
3/8A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
1/16A
1/8A
1/4A
Resistance to Soldering Heat:
MIL-STD-202,
Method 210, Test Condition C (10 sec at 260°C).
Thermal Shock:
MIL-STD-202, Method 107,
Test Condition B (–55°C to 125°C).
Moisture Resistance:
MIL-STD-202, Method 106.
PHYSICAL SPECIFICATIONS:
Materials:
Encapsulated, Epoxy-Coated Body; Solder Coated
Copper Leads. RoHS Compliant Product: Pure Tin coated copper
wire leads.
100
11
AXIAL LEAD AND
Soldering Parameters:
Wave Solder — 260°C, 10 seconds maximum.
10
Test Condition A (will withstand 7 lb. axial pull test).
TIME IN SECONDS
Solderability:
MIL-STD-202, Method 208.
Lead Pull Force:
MIL-STD-202, Method 211,
PATENTED
ORDERING INFORMATION:
Catalog
Number
0263.062
0263.125
0263.250
0263.375
0263.500
0263.750
0263
001
0263
01.5
0263
002
0263
02.5
0263
003
0263
03.5
0263
004
0263
005
Ampere
Rating
1/16
1/8
1/4
3/8
1/2
3/4
1
1
1
/
2
2
2
1
/
2
3
3
1
/
2
4
5
Voltage
Rating
250
250
250
250
250
250
250
250
250
250
250
250
250
250
Nominal
Resistance
Cold Ohms
5.50
1.75
0.715
0.391
0.252
0.150
0.105
0.0635
0.0444
0.0340
0.0274
0.0224
0.0193
0.0145
Nominal
Melting I
2
t
A
2
Sec.
0.000192
0.00251
0.0165
0.0444
0.1125
0.0411
0.087
0.398
0.74
1.197
1.77
2.33
3.08
5.55
1
0.1
0.01
0.001
0.05 0.1
1
10
CURRENT IN AMPERES
100
w w w. l i t t e l f u s e . c o m
389
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