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 Opening
Rating Time
100% 4 hours, Minimum
200% 1 second, Maximum
300% 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.
38.1 7.62 (.300") 38.1
ENVIRONMENTAL SPECIFICATIONS:
(1.5") REF. (1.5")
Operating Temperature: 55C to 125C.
F
3 1/2 A 3.683 (.145")
L
Shock: MIL-STD-202, Method 213, Test Condition I
DIA. REF.
250 V
(100 Gs peak for 6 milliseconds).
0.64 (.025")
Vibration: MIL-STD-202, Method 201 (1055 Hz); MIL-STD-202,
DIA.
Method 204, Test Condition C (552000 Hz at 10 Gs Peak).
PACKAGING SPECIFICATIONS: Tape and Reel per EIA-296;
Salt Spray: MIL-STD-202, Method 101, Test Condition B (48 hrs.).
T1: 2.062" (52.4mm) taped spacing; 3,000 per reel.
Insulation Resistance (After Opening): MIL-STD-202, Method
Options: For RoHS Compliant devices add the letter L to end of
302, Test Condition A (10,000 ohms minimum at 100 volts).
packaging suffix. Example: 263001. WRT1L (RoHS Compliant 1A,
Resistance to Soldering Heat: MIL-STD-202,
3,000 per reel).
Method 210, Test Condition C (10 sec at 260C).
Thermal Shock: MIL-STD-202, Method 107,
Average Time Current Curves
Test Condition B (55C to 125C).
Moisture Resistance: MIL-STD-202, Method 106.
11
100
PHYSICAL SPECIFICATIONS:
Materials: Encapsulated, Epoxy-Coated Body; Solder Coated
Copper Leads. RoHS Compliant Product: Pure Tin coated copper
wire leads.
10
Soldering Parameters:
Wave Solder 260C, 10 seconds maximum.
Solderability: MIL-STD-202, Method 208.
Lead Pull Force: MIL-STD-202, Method 211,
Test Condition A (will withstand 7 lb. axial pull test). 1
PATENTED
ORDERING INFORMATION:
Nominal Nominal
2
Catalog Ampere Voltage Resistance Melting I t
0.1
2
Number Rating Rating Cold Ohms A Sec.
0263.062 1/16 250 5.50 0.000192
0263.125 1/8 250 1.75 0.00251
0263.250 1/4 250 0.715 0.0165
0263.375 3/8 250 0.391 0.0444
0263.500 1/2 250 0.252 0.1125
0.01
0263.750 3/4 250 0.150 0.0411
0263 001 1 250 0.105 0.087
1
2
0263 01.5 1 / 250 0.0635 0.398
0263 002 2 250 0.0444 0.74
1
0263 02.5 2 /2 250 0.0340 1.197
0263 003 3 250 0.0274 1.77 0.001
1
0263 03.5 3 /2 250 0.0224 2.33 0.05 0.1 1 10 100
0263 004 4 250 0.0193 3.08 CURRENT IN AMPERES
0263 005 5 250 0.0145 5.55
389
www.littelfuse.com
TIME IN SECONDS
1/16A
1/8A
1/4A
3/8A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
AXIAL LEAD AND
CARTRIDGE FUSESX-ON Electronics
Largest Supplier of Electrical and Electronic Components
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