7.1
Table of Contents
Flat Cable
Introduction
Gray Ribbon
9L300XX Series:
.025″ Pitch, 30 AWG, PVC
2L280XX Series:
1mm Pitch, 28 AWG, PVC
9L280XX Series:
.050″ Pitch, 28 AWG, PVC
9L260XX Series:
.050″ Pitch, 26 AWG, PVC
Rainbow
9R280XX Series:
.050″ Pitch, 28 AWG, Color-coded PVC
Page No.
7.2
7.3–7.6
7.3
7.4
7.5
7.6
7.7–7.8
7.7
7.8
7.9–7.10
7.9
7.10
7.11
7.11
7.12
7.12
7.13–7.14
Flat Cable
8R280XX Series:
.050″ Pitch, 28 AWG, Color-coded FEP
Vari-Twist
®
9V280XX Series:
.050″ Pitch, 28 AWG, PVC
8V280XX Series:
.050″ Pitch, 28 AWG, FEP
Shielded Jacketed
9L283XX Series:
.050″ Pitch, 28 AWG, PVC
Shielded Jacketed Vari-Twist
9V283XX Series:
.050″ Pitch, 28 AWG, PVC
Technical Information
7
Please refer to “Terms of Use of Master Catalog” on page 22.22
F L A T
C A B L E
7.2
Introduction
Subhead
Belden
®
flat cables are designed using the same expertise and
design sophistication that made Belden a leader in round cable.
Whatever your application, Belden is committed to offering
quality flat cable products at a competitive price. Our extensive
line includes Gray Ribbon, Rainbow, Vari-Twist
®
and Shielded
and Jacketed Flat Cable options. Many of these are available
off the shelf from local distributors. If you have a new or unusual
application or you cannot find a flat cable in this catalog section
that meets your technical requirements, contact Technical Support
at 1-800-BELDEN-1.
●
Reduced Skewing Effects
Due to the conductors having
the exact physical and electrical length, along with a continuous
and consistent dielectric, time delays between signals within a
given flat cable are minimized.
High-Density Interconnections
The cabling density
achievable using flat cable is superior to that using conventional
cable because of the high wire-to-cable cross-sectional density.
Layers of flat cable are more effectively packed for higher
conductor density than round cable.
Ease of Handling
Flat cable folds and bends readily,
conforms to the mounting area, fastens easily with clamps,
adhesive, or double-faced tape, and eliminates the installation
and lacing difficulties associated with round wire cabling.
Visible conductors in a fixed position within the dielectric
simplify coding, inspection and circuit tracing.
●
●
Benefits of Flat Cable
●
Mass Termination
Terminating flat cable is done with the
entire group of conductors as a unit, which is more efficient
than working with individual conductors at one time.
Reliability
The simplicity of flat cable with its parallel
conductor geometry eliminates many of the common sources
of wiring error and malfunction. Registration of the conductors
is one-to-one with the terminating connector or board so that
proper contact assignment is almost automatic.
Space and Weight Reduction
The use of flat cable often
eliminates much of the conventional wire weight and bulk. Such
things as redundant insulating materials, fillers and tapes are
not required. In addition, the composite flat cable construction
is so mechanically strong that it is not necessary to have large
conductors for strength. The copper cross-section can thus be
reduced to what’s required to carry the current load or to satisfy
voltage drop requirements.
Flexibility
Flat cable is extremely flexible when bent in the
plane of its thin cross-section. This flexibility has been utilized
in applications where continuous or high flexing is necessary,
e.g. drawers, doors, rotating arms, etc.
Greater Strength
Strength is enhanced by the fact that
all conductors and insulation equally share tensile loads.
Consistent Electrical Characteristics
Because the
conductor spacing is fixed and the geometry of the cable is
constant, the electrical characteristics, such as impedance,
capacitance, inductance, time delay, crosstalk and attenuation,
are consistent.
Greater Current Carrying Capacity
Flat cables
have greater surface-to-volume ratio than their round cable
counterparts, consequently having higher efficiency in
dissipating heat. This allows a higher current level for a
given temperature rise and conductor cross-section.
●
Flat Cable Packaging
Packaging of flat cable is offered in one or more of the following
configurations, as noted in the Physical Specifications table for
each product:
100:
100′ put-up in a cardboard container.
May contain more than one piece.
●
H100:
A one-piece 100′ length, in a cardboard container.
H300:
300′ length in a cardboard container may contain
more than one piece.
R300:
300′ length put-up on a reel may contain more than
one piece. It is designed for use by assemblers who
use automated terminating equipment. An additional
feature is the 9″ inner tail exposed through the flange.
This enables users to terminate the cable end to a
device, which is necessary for in-line testing.
●
●
●
●
Note: Material on this page obtained from and printed with the permission of the
Institute for Interconnecting and Packaging Electronic Circuits (IPC).
F o r m o r e i n f o r m a t i o n , c o n t a c t
B e l d e n Te c h n i c a l S u p p o r t :
1 - 8 0 0 - B E L D E N - 1
• w w w . b e l d e n . c o m
F L A T
C A B L E
7.3
Gray Ribbon 9L300XX Series
7
•
Flat Cable
Span “B”
mm
Inch
mm
.025″ Pitch, 30 AWG, PVC
Product Description
Belden’s miniaturized .025″ pitch extruded gray ribbon cable provides
higher signal density, greater design flexibility, and an alternative to
the expensive Teflon
®
transmission cables. The cable is manufactured
to precise tolerances which allows for mass-termination to standard
.050″ contact IDC connectors while assuring consistent and reliable
electrical characteristics. With the miniaturization of the interconnects,
significant reduction in components can be achieved. The cable is
constructed of stranded 30 AWG (7x38) tinned copper conductors.
Insulation material consists of Gray PVC, with a Red polarity stripe for
proper circuit alignment. Standard conductor counts are 26 and 50;
other sizes are available upon request. The cable is UL approved
and CSA certified, and passes the VW-1 Vertical Wire Flame Test.
Color Code:
Gray with Red polarity stripe.
Application:
Internal interconnection or internal wiring
of electronic equipment.
.013″ ±.005″
Part
No.
No.
of
Cond.
Dimensions
Width “A”
Inch
9L30026
9L30050
†
†
26
50
.650 ±.010
1.250 ±.011
16.51 ±.25 .625 ±.007
31.75 ±.28 1.225 ±.009
15.88 ±.18
31.12 ±.23
Available in H100 packaging only.
Dimensions
Red Polarity Stripe
On #1 Conductor
30 AWG (7 X 38)
Tin-Plated Copper
.0075″
Nom. Gray PVC
.027″
±.002″
.025″
±.002″
B
A
Physical Specifications
Conductor
Insulation
Pitch
Temperature Rating
Flammability Rating
UL Approval
CSA Approval
Packaging
Electrical Specifications
Voltage Rating
Current Rating
Conductor Resistance
Insulation Resistance
Impedance*
Capacitance*
(@ 1 MHz)
Inductance*
(@ 1 MHz)
Propagation Delay*
*Test Configuration: G-S-G (ground-signal-ground).
30 AWG (7x38) Tinned Copper
.0075″ Nom. Wall Gray PVC
.025″ ± .002″
-40 to +105°C
UL: VW-1, CSA: FT1
File #E12683, Style 2678
File #LL7874, CSA AWM
I
A
105°C 150V FT1
H100, H300
150V RMS
.5A
108Ω/1000 ft.
>1 x 10
10
Ω
• 10 ft. (3m)
70Ω
24 pF/ft. (79 pF/m)
.14 µH/ft. (.46 µH/m)
1.52 ns/ft. (4.99 ns/m)
Unbalanced Crosstalk
8
7
Far end
50
Near end
100
Attenuation
Crosstalk (%)
6
5
4
3
2
1
0
3
9L300XX Series
5
7
Attenuation (dB/100 ft.)
10
5
9L300XX Series
1
10
Pulse Rise Time (ns)
Cable Length: 10 ft.
20
30
40
50 60 70 80 90 100
Frequency (MHz)
Teflon is a DuPont trademark.
F o r m o r e i n f o r m a t i o n , c o n t a c t
B e l d e n Te c h n i c a l S u p p o r t :
1 - 8 0 0 - B E L D E N - 1
• w w w . b e l d e n . c o m
F L A T
C A B L E
7.4
Gray Ribbon 2L280XX Series
1mm Pitch, 28 AWG, PVC
Product Description
Belden’s 1mm (.03937″ pitch) extruded gray ribbon cable was
designed for the disk drive market where the 2mm IDC connector
is widely used. The cable provides improved space reduction, easy
breakouts for circuit routing, and maintains the current carrying
capacity required for these applications. In addition, the electrical
performance meets those requirements specified by the SCSI-3
parallel interface document. The cable is constructed of stranded
28 AWG (7x36) tinned copper conductors. Insulation material
consists of Gray PVC, with a Black polarity stripe for proper circuit
alignment. Standard conductor counts are 26, 34, 40, 44 and 50;
other sizes are available upon request. The cable is UL approved
and CSA certified, and passes the VW-1 Vertical Wire Flame Test.
Color Code:
Gray with Black polarity stripe.
Application:
Internal interconnection or internal wiring
of electronic equipment.
Physical Specifications
Conductor
Insulation
Pitch
Temperature Rating
Flammability Rating
UL Approval
CSA Approval
Packaging
Electrical Specifications
Voltage Rating
Current Rating
Conductor Resistance
Insulation Resistance
Impedance*
Capacitance*
(@ 1 MHz)
Inductance*
(@ 1 MHz)
Propagation Delay*
*Test Configuration: G-S-G (ground-signal-ground).
Part
No.
No.
of
Cond.
Dimensions
Width “A”
Inch
mm
Inch
Span “B”
mm
2L28026**
2L28034**
2L28040**
2L28044**
2L28050
26
34
40
44
50
1.020 ±.008
1.335 ±.012
1.571 ±.012
1.728 ±.012
1.965 ±.012
25.9 ±.20
33.9 ±.30
39.9 ±.30
43.9 ±.30
49.9 ±.30
.984 ±.008
1.299 ±.012
1.535 ±.012
1.693 ±.012
1.929 ±.012
25.0 ±.20
33.0 ±.30
39.0 ±.30
43.0 ±.30
49.0 ±.30
**Available in H100 packaging only.
Dimensions
Black Polarity Stripe
On #1 Conductor
28 AWG (7 X 36)
Tin-Plated Copper
0.254mm (.010
″
) Nom. Gray PVC
.450mm (.0177
″
) Nom.
0.9 ±0.08mm
(.0354″
±.0031″)
28 AWG (7x36) Tinned Copper
.010″ Nom. Wall Gray PVC
1mm ± 0.51mm (.0394″ ± .002″)
-40 to +105°C
UL: VW-1; CSA: FT1
File #E12683, Style 2651
File #LL7874, CSA AWM
I
A
105°C 300V FT1
H100, R300
1.0 ±0.051mm (.0394
″ ±
.0020
″
)
B
A
300V RMS
1A
68.2Ω/1000 ft.
>1 x 10
10
Ω
• 10 ft. (3m)
90Ω
16.5 pF/ft. (54 pF/m)
.16 µH/ft. (.52 µH/m)
1.47 ns/ft. (4.8 ns/m)
Unbalanced Crosstalk*
8
7
6
5
4
3
2
1
0
3
2L280XX Series
5
7
Near End
Far End
25
20
Attenuation*
Crosstalk (%)
Attenuation (dB/100 ft.)
15
10
9
8
7
6
5
4
3
2
10
20
2L280XX Series
Pulse Rise Time (ns)
Cable Length: 10 ft.
30
40 50 60 70 80 90 100
Frequency (MHz)
F o r m o r e i n f o r m a t i o n , c o n t a c t
B e l d e n Te c h n i c a l S u p p o r t :
1 - 8 0 0 - B E L D E N - 1
• w w w . b e l d e n . c o m
F L A T
C A B L E
7.5
Gray Ribbon 9L280XX Series
7
•
Flat Cable
Span “B”
mm
Inch
mm
.050″ Pitch, 28 AWG, PVC
Product Description
Part No.
Belden’s (9L280XX Series) .050″ pitch extruded gray ribbon cable
was designed for general purpose electronic interconnect applications.
The cable provides reliable mass-termination to standard .100″
contact IDC connectors, flexibility, consistent electricals and break-
outs can be made easily with the tear feature design. The cable is
constructed of stranded 28 AWG (7x36) tinned copper conductors.
Insulation material consists of Gray PVC, with a Red polarity stripe
for proper circuit alignment. Various conductor counts are standard;
other sizes are available upon request. The cable is UL approved
and CSA certified, and passes the VW-1 Vertical Wire Flame Test.
Color Code:
Gray with Red polarity stripe (standard).
Application:
Internal interconnection or internal wiring
of electronic equipment.
Physical Specifications
Conductor
Insulation
Pitch
Temperature Rating
Flammability Rating
UL Approval
CSA Approval
Packaging
Electrical Specifications
Voltage Rating
Current Rating
Conductor Resistance
Insulation Resistance
Impedance*
Capacitance*
(@ 1 MHz)
Inductance*
(@ 1 MHz)
Propagation Delay*
*Test Configuration: G-S-G (ground-signal-ground).
Standard
[UL & CSA]
No.
of
Cond.
Dimensions
Width “A”
Inch
9L28009
9L28010
9L28014
†
9L28015**
9L28016
9L28020
9L28024
†
9L28025
9L28026
9L28034
9L28036**
9L28037**
9L28040
9L28050
9L28060
9L28064
9
10
14
15
16
20
24
25
26
34
36
37
40
50
60
64
.45 ±.008
.50 ±.008
.70 ±.008
.75 ±.008
.80 ±.008
1.00 ±.008
1.20 ±.008
1.25 ±.008
1.30 ±.008
1.70 ±.008
1.80 ±.012
1.85 ±.012
2.00 ±.012
2.50 ±.012
3.00 ±.012
3.20 ±.012
11.43 ±.20
12.70 ±.20
17.78 ±.20
19.05 ±.20
20.32 ±.20
25.40 ±.20
30.48 ±.20
31.75 ±.20
33.02 ±.20
43.18 ±.20
45.72 ±.30
46.99 ±.30
50.80 ±.30
63.50 ±.30
76.20 ±.30
81.28 ±.30
.40 ±.008
.45 ±.008
.65 ±.008
.70 ±.008
.75 ±.008
.95 ±.008
1.15 ±.008
1.20 ±.008
1.25 ±.008
1.65 ±.008
1.75 ±.012
1.80 ±.012
1.95 ±.012
2.45 ±0.12
2.95 ±.012
3.15 ±.012
10.16 ±.20
11.43 ±.20
16.51 ±.20
17.78 ±.20
19.05 ±.20
24.13 ±.20
29.21 ±.20
30.48 ±.20
31.75 ±.20
41.91 ±.20
44.45 ±.30
45.72 ±.30
49.53 ±.30
62.23 ±.30
74.93 ±.30
80.01 ±.30
28 AWG (7x36) Tinned Copper
.010″ Nom. Wall Gray PVC
.050″ ± .002″
-40 to +105°C
UL: VW-1; CSA: FT1
File #E12683, Style 2651
File #LL7874, CSA AWM
I
A
105°C 300V FT1
H100, H300, R300
**Available in H100 packaging only.
†
Not available in R300 packaging.
Dimensions
Red Polarity Stripe
On #1 Conductor
28 AWG (7 X 36)
Tin-Plated Copper
.010″ Nom. Gray PVC
300V RMS
1A
68.2Ω/1000 ft.
>1 x 10
10
Ω
• 10 ft. (3m)
105Ω
15 pF/ft. (49 pF/m)
.20 µH/ft. (.66 µH/m)
1.40 ns/ft. (4.6 ns/m)
.035″
±.003″
.050″ ±.002″
.025″ ±.007″
B
A
.010″ Nom.
Unbalanced Crosstalk*
8
7
25
20
Far end
Attenuation (dB/100 ft.)
15
Attenuation*
Crosstalk (%)
6
5
4
3
2
1
0
3
Near end
9L280XX Series
5
7
10
9
8
7
6
5
4
3
9L280XX Series
2
10
20
30
40 50 60 70 80 90 100
Pulse Rise Time (ns)
Cable Length: 10 ft.
Frequency (MHz)
F o r m o r e i n f o r m a t i o n , c o n t a c t
B e l d e n Te c h n i c a l S u p p o r t :
1 - 8 0 0 - B E L D E N - 1
• w w w . b e l d e n . c o m
