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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Axial Lead & Cartridge Fuses
PICO
®
ll Fuse > Very Fast-Acting Fuse > 263 Series
Materials
Encapsulated, Epoxy-Coated
Body: Solder Coated Copper Leads.
RoHS compliant
Product: Pure Tin–coated Copper wire
leads
Solderability MIL-STD-202. Method 208.
Product Marking Body marking, current rating and logo
Operating
Temperature
–55ºC to +125ºC (Consider re-rating)
Shock
MIL-STD-202, Method 213, Test Condition
I (100 G’s peak for 6 milliseconds)
Product Characteristics
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)
Resistance to Soldering
Heat
MIL-STD-202, Method 210,
Test Condition C (10 sec. at 260ºC)
Thermal Shock
MIL-STD-202, Method 107, Test
Condition B (–55ºC to 125ºC)
Moisture Resistance MIL-STD-202, Method 106
Lead Pull Force
MIL-STD-202, Method 211,
Test Condition A (will withstand 7 lb.
axial pull test)
F
L
3 1/2 A
250 V
F
L
3 1/2 A
250 V
27.78
(1.094")
27.78
(1.094")
7.11 (.280")
62.7 (2.468")
52.4 (2.062")*
0.64 (.025")
3.94 (.16")
MAX
6.35 (.25")
tape
5.0 (.197")
6.35 (.25")
tape
Dimensions
Packaging
Packaging Option Packaging Specification Quantity
Quantity &
Packaging Code
T1: 52.4mm (2.062”)
Tape and Reel
EIA 296
Please refer to available quantities
above in “Part Numbering System”
Part Numbering System
0263 xxxx W R T1 L
Lead Length
Type of Packaging
Quantity
Current Rating
Series
T1: 52.4mm (2.062”)*
RoHS + HF
R = Reel
A = Ammo Pack
X = Loose Pack
W = 3000
M = 1000
H = 100
Refer to Amp Code column of
Electrical Characteristics Table
Notes: * T1 dimension is defined as the length of the component between the two tapes. The full component length is 62.7mm (2.468").
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.