Surface mount fuses, Ceramic fuse > 501 series – Littelfuse 501 Series User Manual
Page 3

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
Ceramic Fuse > 501 Series
Materials
Body: Advanced Ceramic
Terminations: Ag / Ni / Sn (100% Lead-free)
Element Cover Coating: Lead-free Glass
Moisture
Sensitivity Level
IPC/JEDEC J-STD-020C, Level 1
Solderability
IPC/ECA/JEDEC J-STD-002C, Condition B
Humidity Test
MIL-STD-202, Method 103B, Conditions D
Resistance to
Solvents
MIL-STD-202, Method 210F, Condition B
Product Characteristics
Moisture Resistance
MIL-STD-202, Method 106G
Thermal Shock
MIL-STD-202, Method 107G,
Condition B
Mechanical Shock
MIL-STD-202, Method 213B,
Condition A
Vibration
MIL-STD-202, Method 201A
Vibration,
High Frequency
MIL-STD-202, Method 204D,
Condition D
Dissolution of
Metallization
IPC/ECA/JEDEC J-STD-002C,
Condition D
Terminal Strength
IEC 60127-4
Dimensions
Packaging
Part Marking System
packaging Option
packaging Specification
Quantity
Quantity &
packaging Code
8mm Tape and Reel
EIA-481, IEC 60286, Part 3
3000
WR
Part Numbering System
20
1.00
[.04]
1.63 +.10/-.20
[.064 +.004/-.008]
3.200 ± .1778
[.126 ± .007]
0.835 ± 0.15
[.033 ± .006]
TERMINATION
Thin Version
.520 ± .200
[.020 ± .008]
.502 ± .08
[.02 ± .003]
1.500
[.059]
1.800
[.071]
3.500
[.138]
1.000
[.039]
Amp Code
marking Code
010.
10
012.
12
015.
15
020.
20
0501 020. W R S
Series
AMP Code
W = 3000 pcs
Quantity
R = Reel Pack
Packing Code
S = Thin Version
Thickness Code