156
Cartridge and Axial Lead Fuses
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
Revised: July 16, 2008
3AG > Fast Acting > 312/318 Series
312/318 Series
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com/series/312.html or 318.html for current information.
312 Series
318 Series
6.35
(.25")
32.72
(1.288")
31.75
(1.25")
6.985
(.275")
0.813
(.032")
39.68
(1.56") 5:1.
Standard Length
12.70
(0.50”) 5:1
Short Lead Option
Axial Lead Material:
Tin Coated Copper
Product Characteristics
Dimensions
Packaging
Packaging Option Quantity
Quantity &
Packaging Code
312 Series (Cartridge Type)
Bulk 5 VX
Bulk 100 )9
Bulk 1000 MX
Bulk 1000 MXCC
Bulk 100 )9$$
318 Series (Axial Leaded)
Bulk 5 VX
Bulk 100 )9
Bulk 1000 MX
Bulk 1000 MXSL
Materials
Body: Glass
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Terminal Strength
.*-45%(.FUIPE"
Test Condition A
Solderability
3FGFSFODF*&$4FDPOE&EJUJPO
2003-01 Annex A
Product Marking
Cap1: Brand logo, current and voltage
ratings
Cap2: Series and agency approval
marks
Operating
Temperature
o$UP$
Thermal
Shock
.*-45%(.FUIPE(5FTU$POEJUJPO#
DZDMFT¡$UP¡$
Vibration .*-45%(.FUIPE"
Humidity
.*-45%(.FUIPE#
5FTU$POEJUJPO")JHI3)
and Elevated temperature (40°C) for 240 hours
Salt Spray
.*-45%(.FUIPE%
Test Condition B
Part Numbering System
0312 xxxx M X CC
Quantity Code
Current Rating Code
Series
Refer to Amp Code column of
Electrical Characteristics Table
Option Codes
Packaging Code
X = Loose Pack
M = 1000
H = 100
V = 5
312 = Cartridge
318 = Axial Leaded
Blank = Standard Item
CC = Color Coded
SL = Short Lead Option (12.70 +/- 1.575 mm)
P = RoHS Compliant and Lead Free Indicator *
For additional information or information about
other available options, please contact Littelfuse.
*Note: All 312 / 318 series fuses are now sold
as RoHS compliant and Lead Free by default,
with or without the “P” indicator.
Measurements displayed in millimeters (inches)
