Axial Lead & Cartridge Fuses
3AB 1000VAC / DC High Voltage Fuse
508 Series
Lead-Free 3AB Fuse
Description
A 1000Vac/Vdc rated ceramic fuse with remarkable
interrupting rating in a compact 6.3 x 32mm package,
which is well suited for circuit protection in high energy
applications.
Features
UÊ Ê>VVÀ`>ViÊ
with Underwriter’s
Laboratories Standard
UL 248-14
UÊ Û>>LiÊÊV>ÀÌÀ`}iÊ
and axial lead
Agency Approvals
Agency
Agency File Number
Ampere Range
Recognised File: E10480
315mA - 1A
UÊ -Õ«iÀÀÊÌiÀÀÕ«Ì}Ê
rating of 10,000
Amperes
UÊ «>VÌÊvÀÊv>VÌÀÊvÊ
6.3 x 32mm
UÊ ,-ÊV«>ÌÊ>`Ê
Lead-free
Applications
315mA - 1A
Used as supplementary protection in appliance or
ÕÌâ>ÌÊiµÕ«iÌÊÌÊ«ÀÛ`iÊ`Û`Õ>Ê«ÀÌiVÌÊvÀÊ
components or internal circuits.
Electrical Characteristics
Ampere Rating
Opening Time
{ÊÕÀÃ]ÊÕ
100%
315mA - 1A
135%
£ÊÕÀ]Ê>ÝÕ
£ÓäÊ-iV`Ã]Ê>ÝÕ
200%
Electrical Characteristic
Amp Code
Amp Rating
Voltage
Rating
.315
0.315
1000
.500
0.5
1000
001
1
1000
Interrupting
Rating
Agency Approvals
Nominal Cold
Resistance
(mohms)
Nominal
Melting
I2t (A2 sec.)
9200
0.071
x
x
3572
0.259
x
x
1580
0.449
x
x
10kA @ 1000Vac
10kA @ 1000Vdc
IÊ£äJÈää6>VÉ`VÊ>ÃÊV1,ÕÃÊ>««ÀÛi`°Ê``ÊÃÕvwÝʺȻ°ÊÝ>«i\Êäxän°Î£x8È*°Ê
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/508.html for current information.
1
Revised: November 3, 2011
508 Series
508 Series
% of Ampere
Rating
Introduction
to &
Circuit
Protection
Axial Lead
Cartridge
Fuses
3AB 1000Vac/dc HighTransientology
Voltage Fuse
508001
10000
508.500
Average Time Current Curves
508.315
Temperature Rerating Curve
Time (seconds)
1000
100
10
1
0.1
0.01
0.001
0.01
0.1
1
10
100
Amps
Soldering Parameters - Wave Soldering
Recommended Process Parameters:
280
260
Wave Parameter
240
220
Lead-Free Recommendation
Preheat:
200
i«i`ÃÊÊÕÝÊVÌÛ>ÌÊ/i«iÀ>ÌÕÀi®
180
160
140
120
100
80
40
/Þ«V>Ê`ÕÃÌÀÞÊ,iVi`>Ì®
ÊÊÊÊ/i«iÀ>ÌÕÀiÊÕ\
100° ÊÊÊÊ/i«iÀ>ÌÕÀiÊ>ÝÕ\
150° ÊÊÊÊ*Ài
i>ÌÊ/i\
60-180 seconds
Solder Pot Temperature:
260° Ê>ÝÕ
Solder Dwell Time:
2-5 seconds
60
240
230
220
210
200
190
180
170
160
150
140
130
120
110
90
100
80
70
60
50
40
30
20
0
0
20
10
Temperature (°C) - Measured on bottom side of board
300
Recommended Hand-Solder Parameters:
Time (Seconds)
-`iÀÊÀÊ/i«iÀ>ÌÕÀi\ÊÊÎxäcÊ
ʳÉÊxc
i>Ì}Ê/i\ÊÊxÊÃiV`ÃÊ>ݰ
Cooling Time
Preheat Time
Dwell Time
Note: These devices are not recommended for IR or
Convection Reflow process.
Product Characteristics
Materials
`ÞÊ\Ê
iÀ>V
>«ÊÊÊ\Ê Viq«>Ìi`ÊLÀ>ÃÃ
i>`ÃÊ\Ê/«>Ìi`Ê
««iÀ
Terminal Strength
-/ÓäÓ]ÊiÌ
`ÊÓ££]Ê
/iÃÌÊ
`ÌÊ
Solderability
,iviÀiViÊ
ÊÈä£ÓÇÊ-iV`Ê`ÌÊ
2003-01 Annex A
Product Marking
>«£Ê\ÊÀ>`Ê}]ÊVÕÀÀiÌÊ>`ÊÛÌ>}iÊ
ratings
>«ÓÊ\Ê-iÀiÃÊ>`Ê>}iVÞÊ>««ÀÛ>Ê>ÀÃ
508 Series
2
Operating
Temperature:
qxx¨
ÊÌÊ£Óx¨
°
Thermal
Shock:
-/ÓäÓ]ÊiÌ
`Ê£äÇ]Ê/iÃÌÊ
`ÌÊ
ÊxÊ
ÞViÃÊÈx¨
ÊÌʳ£Óx¨
®°
Vibration
-/ÓäÓ]ÊiÌ
`ÊÓä£
Humidity
-/ÓäÓ]ÊiÌ
`Ê£äÎ]Ê/iÃÌÊ
`ÌÊ
\Ê}
ÊÀi>ÌÛiÊ
Õ`ÌÞÊx¯®Ê>`ÊiiÛ>Ìi`Ê
Ìi«Ê{ä¨
®ÊvÀÊÓ{äÊ
ÕÀÃ
Salt Spray
-/ÓäÓ]ÊiÌ
`Ê£ä£]Ê/iÃÌÊ
`ÌÊ
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/508.html for current information.
Axial Lead & Cartridge Fuses
3AB 1000VAC / DC High Voltage Fuse
Dimensions
Part Numbering System
0508 xxxx M X E P
ø 6.3
Series
Amp Code
32
Refer to Amp Code column of
Electrical Characteristics Table
Quantity Code
0.813
(.032")
M = 1000
Packaging Code
6.985
(.275")
X = Filler
32.72
(1.288")
Axial Lead Material:
Tin Coated Copper
Option Codes
39.68
(1.56") TYP.
Standard Length
Blank : Cartidage Type Fuse
E
: Axial Lead Fuse
Lead-free
12.70
(0.50”) TYP
Short Lead Option
Packaging
Packaging Option
Packaging Specification
Quantity
Quantity & Packaging
Code
Reel Size
508 Series
É
1000
8
É
É
1000
8
É
508 Series
Bulk
Bulk
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/508.html for current information.
3
508 Series