2X
3.5
3M
TM
TWIN
AXIAL
CABLE
ASSEMBLY
FOR
PCIe
X8
EXTENDER
CARD
APPLICATIONS
2
X
CABLE
PARTNO.
3749-20
2
X
CABLE
PARTNO.
SL8802/22-18DN5-00
5.5
4.5
75.0
2X
1.57
8.7
ADHESIVE
ENCAPSULANT
APPLIED
TO
CABLE
ENDS
ADHESIVE
ENCAPSULANT
APPLIED
TO
CABLE
ENDS
ADHESIVE
ENCAPSULANT
APPLIED
TO
CABLE
ENDS
ADHESIVE
ENCAPSULANT
APPLIED
TO
CABLE
ENDS
60.1
15.5
9.0
27.0
84.0
DIM
A
SEE
NOTE
6
+5
-0
PART
LABEL
(WRAP-AROUND)
3M
PART
NUMBER:
DATE
CODE:
XXYY
XX
=
YEAR
YY
=
WEEK
1
DIMENSIONS
ARE
IN
MILLIMETERS.
2
3M
TM
RIBBON
TWINAX
DESCRIPTION:
30
AWG,
SILVER
PLATED
SIGNAL
WIRE
IMPEDANCE:
85
5
OHM
OVERALL
RIBBON
WIDTH:
24.90
MM
OVERALL
RIBBON
THICKNESS:
0.75
MM
3
ROHS
COMPLIANT.
SEE
REGULATORY
INFORMATION
APPENDIX
IN
"ROHS
COMPLIANCE"
SECTION
AT
WWW.3MCONNECTORS.COM
(E1
&
C1
APPLY)
4
THIS
CABLE
CONSTRUCTION
HAS
A
THIN
ALUMINUM
INNER
LAYER
EXPOSED
AT
EACH
EDGE.
USERS
SHOULD
ASSESS
WHETHER
THE
EXPOSED
EDGE
PRESENTS
A
SHORTING
RISK
IN
THEIR SPECIFIC
APPLICATION.
INSULATING
TAPE
MAY
BE
APPLIED
AT
THE
CABLE
ASSEMBLY
LEVEL,
AS
NEEDED,
TO
COVER
THE
EXPOSED
EDGE
IN
RISK
AREAS.
5
APPLICABLE
SPECIFICATIONS:
PRODUCT
SPECIFICATION
NUMBER:
TWIN
AX
CABLE:
PS-0106
CABLE
ASSEMBLY:
PS-0137
6
ORDER
BY
APPLICABLE
3M
PART
NUMBER:
8KH2-0723-XXXX
XXXX
=
DIM
'A'
IN
MILLIMETERS
(1000
=
1
METER)
STANDARD
LENGTH
(DIM
'A')
8KH2-0723-0250
(250
MM)
8KH2-0723-0500
(500
MM)
NON-STANDARD
LENGTHS
AVAILABLE
UPON
SPECIAL
REQUEST.
MAY
REQUIRE
HIGHER
MOQS
AND
LONGER
LEAD
TIMES.
150
MM
MINIMUM
LENGTH.
7
FLAMMABILITY
RATING:
TWIN
AX
CABLE:
UL94
HB
PCBS:
UL94V-0
ADHESIVE
STRAIN
RELIEF:
UL94
HB,
(TBV)
8
PADDLECARD
FINGER
GOLD
THICKNESS:
0.76
m
[30
"]
MIN
ELECTROLYTIC
HARD
GOLD OVER
1.27
m
[50
"]
MIN
ELECTROLYTIC
NICKEL.
NOTES
38
SIDE
A
SIDE
B
PIN
B1
PIN
B49
PIN
A49
PIN
A1
BILL
OF
MATERIALS
ITEM
DESCRIPTION
QTY
1.0
PBA
PCB
ASSY,
PADDLECARD,
PCIE
X8
1
1.1
PCB
PCIE
X8
(98
POS)
STRADDLEMOUNT
3M
P/N:
78-9101-6475-1
1
1.2
CONN
CONNECTOR,
PCIE
98
POSITION,
FEMALE
SOCKET
1
2.0
PCB
PCIE
X8
EXTENDER
(98
POS)
CARD-EDGE
3M
P/N:
78-9101-6470-2
1
3.0
CABLE
RIBBON
TWIN
AX
CABLE
3M
P/N:
SL8802/22-18DN5-00
2
4.0
CABLE
RIBBON
CABLE,
20
POSITION
3M
P/N:
3749-20
2
5.0
STRAIN
RELIEF
ADHESIVE
AS
REQUIRED
3M
ELECTRONICS
MATERIALS
SOLUTIONS
DIVISION
INTERCONNECT
SOLUTIONS
http://www.3mconnectors.com
3M
IS
A
TRADEMARK
OF 3M
COMPANY.
FOR
TECHNICAL,
SALES
OR
ORDERING
INFORMATION
CALL
800-225-5373
PIN
B1
PIN
B49
PIN
A49
PIN
A1
12345678
87654321
A
B
C
D D
C
B
A
OF
SHT
MODEL
SIZE
DET.
LISTS
CAGE
NUMBER
DRAWING
NO.
REV.
TITLE
3M
COPYRIGHT
C
3M
Center
St.
Paul,
MN
55144
CHKD
DATE
APPVL
DATE
DRFT
DATE
MFG
DATE
CHKD
DRFT
REV
ECO
ISSUE
DATE
AND
DESCRIPTION
DRAWING
NUMBER
REVISION
ACCESS
CODES
DESIGN
REFERENCE
NEXT
ASSEMBLY
DIVISION DIVISION
CODE
TOLERANCES
EXCEPT
AS
NOTED
DO
NOT
SCALE
DRAWING
SCALE
MILLIMETERS
INCHES
.0000
.000
.00
.0
0
.0
.00
.000
ANGLES
THIRD
ANGLE
PROJECTION
INTERPRET
PER
ASME
Y14.5
-
2009
MAX
SURFACE
ROUGHNESS
ALL
SURFACES
MARKED
ONLY
NO
YES
This
document
and
the
information
it
contains
are
3M
property
and
may
not
be
reproduced
or
further
distributed
without
3M
permission,
or
used
or
disclosed
other
than
for
3M
authorized
purposes.
All
rights
reserved.
.005
.05
.5
1
8KH2-0723-XXXX,
CABLE
ASSY,
PCIE
X8
BY
PCIE
X8
EXTENDER
125 31
78-5100-2511-3
1
2
D
D
78-5100-2511-3
L
SCHMIDT
MAR
08,2012
2018
1
A
MAR
08,2012
ARM
TS
REVISED
X8
PCB
SHAPE;
REVISED
VIEW
ORIENTATION;
REVISED
NOTE
ORIENTATION
B
40306
JUN
18,2012
LDS
TS
REVISED
NOTE
6
C
42467
AUG
06,2012
LDS
TS
ADDED
URL
AND
TRADEMARK
NOTES
SH1,
ZONE
A8;
ADDED
SH3,
WARRANTY
INFO
NOTES;
ADDED
NOTE
TO
CLARIFY
PINOUTS,
SH2,
ZONE
A5
D
77066
DEC
20,2017
AD
LS
Imaged:
D.3
Central
Standard
Time1/3/2018UTC
Offset
3M
3749-20
Cable
Wire
#
Pin
Attachment
#
01
Ground
Layer
02
B01
-
B02
03
B01
-
B02
04
B01
-
B02
05
B01
-
B02
06
B01
-
B02
07
B01
-
B02
08
Ground
Layer
09
B05
10
B06
11
Ground
Layer
12
B08
13
B08
14
B09
15
B10
16
B10
17
Ground
Layer
18
B11
19
Ground
Layer
20
B12
3M
SL8802
Cable
Wire
#
Pin
Attachment
#
GND
Ground
Layer
pr_01
B14
pr_01
B15
pr_02
B17
pr_02
Ground
Layer
pr_03
B19
pr_03
B20
pr_04
B23
pr_04
B24
GND
Ground
Layer
pr_05
B27
pr_05
B28
pr_06
B30
pr_06
B31
pr_07
B33
pr_07
B34
GND
Ground
Layer
pr_08
B37
pr_08
B38
pr_09
B41
pr_09
B42
pr_10
B45
pr_10
B46
pr_11
B48
pr_11
Ground
Layer
GND
Ground
Layer
PCI-Express
X8
Pin-Out
Pin
#
Side
B
Description
Side
A
Description
Pin
#
B01
+12
volt
power
Hot
plug
presence
detect
A01
B02
+12
volt
power
+12
volt
power
A02
B03
+12
volt
power
+12
volt
power
A03
B04
Ground Ground
A04
B05
SMBus
clock
TCK
A05
B06
SMBus
data
TDI
A06
B07
Ground
TDO
A07
B08
+3.3
volt
power
TMS
A08
B09
+TRST#
+3.3
volt
power
A09
B10
3.3v
volt
power
+3.3
volt
power
A10
B11
Link
Reactivation
Power
Good
A11
Mechanical
Key
B12
Reserved
Ground
A12
B13
Ground
Reference
Clock
A13
B14
Transmitter
Lane
0,
Differential
pair
A14
B15
Differential
pair
Ground
A15
B16
Ground
Receiver
Lane
0,
A16
B17
Hotplug
detect
Differential
pair
A17
B18
Ground Ground
A18
B19
Transmitter
Lane
1,
Reserved
A19
B20
Differential
pair
Ground
A20
B21
Ground
Receiver
Lane
1,
A21
B22
Ground
Differential
pair
A22
B23
Transmitter
Lane
2,
Ground
A23
B24
Differential
pair
Ground
A24
B25
Ground
Receiver
Lane
2,
A25
B26
Ground
Differential
pair
A26
B27
Transmitter
Lane
3,
Ground
A27
B28
Differential
pair
Ground
A28
B29
Ground
Receiver
Lane
3,
A29
B30
Reserved
Differential
pair
A30
B31
Hot
plug
detect
Ground
A31
B32
Ground
Reserved
A32
B33
Transmitter
Lane
4,
Reserved
A33
B34
Differential
pair
Ground
A34
B35
Ground
Receiver
Lane
4,
A35
B36
Ground
Differential
pair
A36
B37
Transmitter
Lane
5,
Ground
A37
B38
Differential
pair
Ground
A38
B39
Ground
Receiver
Lane
5,
A39
B40
Ground
Differential
pair
A40
B41
Transmitter
Lane
6,
Ground
A41
B42
Differential
pair
Ground
A42
B43
Ground
Receiver
Lane
6,
A43
B44
Ground
Differential
pair
A44
B45
Transmitter
Lane
7,
Ground
A45
B46
Differential
pair
Ground
A46
B47
Ground
Receiver
Lane
7,
A47
B48
Hot
plug
detect
Differential
pair
A48
B49
Ground Ground
A49
3M
3749-20
Cable
Pin
Attachment
#
Wire
#
Ground
Layer
01
A01
02
Ground
Layer
03
A02
-
A03
04
A02
-
A03
05
A02
-
A03
06
A02
-
A03
07
Ground
Layer
08
A05
09
A06
10
A07
11
A08
12
Ground
Layer
13
A09
-
A10
14
A09
-
A10
15
A09
-
A10
16
A09
-
A10
17
Ground
Layer
18
Ground
Layer
19
A11
20
3M
SL8802
Cable
Pin
Attachment
#
Wire
#
Ground
Layer
GND
A13
pr_01
A14
pr_01
A16
pr_02
A17
pr_02
Ground
Layer
pr_03
A19
pr_03
A21
pr_04
A22
pr_04
Ground
Layer
GND
A25
pr_05
A26
pr_05
A29
pr_06
A30
pr_06
A32
pr_07
A33
pr_07
Ground
Layer
GND
A35
pr_08
A36
pr_08
A39
pr_09
A40
pr_09
A43
pr_10
A44
pr_10
A47
pr_11
A48
pr_11
Ground
Layer
GND
THIS
IS
A
FEED
THROUGH
ASSEMBLY.
THE
PIN
ASSIGNMENTS
REMAIN
THE
SAME
ON
BOTH
ENDS.
12345678
87654321
A
B
C
D D
C
B
A
OF
SHT
MODEL
SIZE
DET.
LISTS
CAGE
NUMBER
DRAWING
NO.
REV.
TITLE
3M
COPYRIGHT
C
3M
Center
St.
Paul,
MN
55144
CHKD
DATE
APPVL
DATE
DRFT
DATE
MFG
DATE
CHKD
DRFT
REV
ECO
ISSUE
DATE
AND
DESCRIPTION
DRAWING
NUMBER
REVISION
ACCESS
CODES
DESIGN
REFERENCE
NEXT
ASSEMBLY
DIVISION DIVISION
CODE
TOLERANCES
EXCEPT
AS
NOTED
DO
NOT
SCALE
DRAWING
SCALE
MILLIMETERS
INCHES
.0000
.000
.00
.0
0
.0
.00
.000
ANGLES
THIRD
ANGLE
PROJECTION
INTERPRET
PER
ASME
Y14.5
-
2009
MAX
SURFACE
ROUGHNESS
ALL
SURFACES
MARKED
ONLY
NO
YES
This
document
and
the
information
it
contains
are
3M
property
and
may
not
be
reproduced
or
further
distributed
without
3M
permission,
or
used
or
disclosed
other
than
for
3M
authorized
purposes.
All
rights
reserved.
.005
.05
.5
1
8KH2-0723-XXXX,
CABLE
ASSY,
PCIE
X8
BY
PCIE
X8
EXTENDER
125 32
78-5100-2511-3
1
1
D
D
78-5100-2511-3
L
SCHMIDT
MAR
08,2012
2018
1
A
MAR
08,2012
ARM
TS
REVISED
X8
PCB
SHAPE;
REVISED
VIEW
ORIENTATION;
REVISED
NOTE
ORIENTATION
B
40306
JUN
18,2012
LDS
TS
REVISED
NOTE
6
C
42467
AUG
06,2012
LDS
TS
ADDED
URL
AND
TRADEMARK
NOTES
SH1,
ZONE
A8;
ADDED
SH3,
WARRANTY
INFO
NOTES;
ADDED
NOTE
TO
CLARIFY
PINOUTS,
SH2,
ZONE
A5
D
77066
DEC
20,2017
AD
LS
Imaged:
D.3
Central
Standard
Time1/3/2018UTC
Offset
Regulatory:
For
regulatory
information
about
this
product,
visit
3M.com/regs
or
contact
your
3M
representative.
Technical
Information:
The
technical
information,
recommendations
and
other
statements
contained
in
this
document
are
based
upon
tests
or
experience
that
3M
believes
are
reliable,
but the
accuracy
or
completeness
of
such
information
is
not
guaranteed.
Product
Use:
Many
factors
beyond
3M's
control
and
uniquely
within
user's
control
can
affect
the
use
and
performance
of
a
3M
product
in
a
particular
application.
Given
the
variety
of
factors
that
can
affect
the
use
and
performance
of
a
3M
product,
user
is
solely
responsible
for
evaluating
the
3M
product
and
determining
whether
it
is
fit
for
a
particular
purpose
and
suitable
for
user's
method
of
application.
Warranty,
Limited
Remedy,
and
Disclaimer:
Unless
an
additional
warranty
is
specifically
stated
on
the
applicable
3M
product
packaging
or
product
literature,
3M
warrants
that
each
3M
product
meets
the
applicable
3M
product
specification
at
the
time
3M
ships
the
product.
3M
MAKES
NO
OTHER
WARRANTIES
OR
CONDITIONS,
EXPRESS
OR
IMPLIED,
INCLUDING,
BUT
NOT
LIMITED
TO,
ANY
IMPLIED
WARRANTY
OR
CONDITION
OF
MERCHANTABILITY
OR
FITNESS
FOR
A
PARTICULAR
PURPOSE
OR
ANY
IMPLIED
WARRANTY
OR
CONDITION
ARISING
OUT
OF
A
COURSE
OF
DEALING,
CUSTOM
OR
USAGE
OR
TRADE.
If
the
3M
product
does
not
conform
to
this
warranty,
then
the
sole
and
exclusive
remedy
is,
at
3M's
option,
replacement
of
the
3M
product
or
refund
of
the
purchase
price.
Limitation
of
Liability:
Except
where
prohibited
by
law,
3M
will
not
be
liable
for
any
loss
or
damage
arising
from
the
3M
product,
whether
direct,
indirect,
special,
incidental
or
consequential,
regardless
of
the
legal
theory
asserted,
including
warranty,
contract,
negligence
or
strict
liability.
3M
Electronics
Materials
Solutions
Division
6801
River
Place
Blvd.
Austin,
TX
78726-9000
1-800-225-5373
www.3M.com/interconnect
12345678
87654321
A
B
C
D D
C
B
A
OF
SHT
MODEL
SIZE
DET.
LISTS
CAGE
NUMBER
DRAWING
NO.
REV.
TITLE
3M
COPYRIGHT
C
3M
Center
St.
Paul,
MN
55144
CHKD
DATE
APPVL
DATE
DRFT
DATE
MFG
DATE
CHKD
DRFT
REV
ECO
ISSUE
DATE
AND
DESCRIPTION
DRAWING
NUMBER
REVISION
ACCESS
CODES
DESIGN
REFERENCE
NEXT
ASSEMBLY
DIVISION DIVISION
CODE
TOLERANCES
EXCEPT
AS
NOTED
DO
NOT
SCALE
DRAWING
SCALE
MILLIMETERS
INCHES
.0000
.000
.00
.0
0
.0
.00
.000
ANGLES
THIRD
ANGLE
PROJECTION
INTERPRET
PER
ASME
Y14.5
-
2009
MAX
SURFACE
ROUGHNESS
ALL
SURFACES
MARKED
ONLY
NO
YES
This
document
and
the
information
it
contains
are
3M
property
and
may
not
be
reproduced
or
further
distributed
without
3M
permission,
or
used
or
disclosed
other
than
for
3M
authorized
purposes.
All
rights
reserved.
.005
.05
.5
1
8KH2-0723-XXXX,
CABLE
ASSY,
PCIE
X8
BY
PCIE
X8
EXTENDER
125 33
78-5100-2511-3
1
1
D
D
78-5100-2511-3
L
SCHMIDT
MAR
08,2012
2018
1
A
MAR
08,2012
ARM
TS
REVISED
X8
PCB
SHAPE;
REVISED
VIEW
ORIENTATION;
REVISED
NOTE
ORIENTATION
B
40306
JUN
18,2012
LDS
TS
REVISED
NOTE
6
C
42467
AUG
06,2012
LDS
TS
ADDED
URL
AND
TRADEMARK
NOTES
SH1,
ZONE
A8;
ADDED
SH3,
WARRANTY
INFO
NOTES;
ADDED
NOTE
TO
CLARIFY
PINOUTS,
SH2,
ZONE
A5
D
77066
DEC
20,2017
AD
LS
Imaged:
D.3
Central
Standard
Time1/3/2018UTC
Offset