Omega SGD Specification

PRECISION STRAIN GAGE

3.4 mm

16-CONDUCTORS

LIMB WIDTH 0.035 mm

GAP WIDTH 0.026 mm

SGD-1.5/120-LY11

SGD-2/350-LY11

5.8 mm

36-CONDUCTORS

LIMB 0.036 mm

GAP 0.027 mm

AGL 2.0 mm

SGD-2D/350-LY11

6.6 mm

54-CONDUCTORS

LIMB 0.046 mm

GAP 0.035 mm

AGL 1.88 mm

SGD-3/350-LY11

4.0 mm

26-CONDUCTORS

LIMB 0.040 mm

GAP 0.040 mm

AGL 3.2 mm

PRECISION LINEAR PATTERN FOR STATIC AND
DYNAMIC APPLICATIONS

SGD Series

U Very Flexible, Mechanically Strong
U Small Bending Radius
U Broad Temperature Range
U Ribbon Leads or Solder Pads
U Clear Alignment Marks
U Affix with Cold or Hot Curing Adhesives

OMEGA® strain gages are available in a variety of models
to cover most strain measurement applications. Their
rugged construction and flexibility make them suitable for
highly accurate static and dynamic measurement. The
measuring grid is formed by etching constantan foil, which
is then completely sealed in a carrier medium composed of
polyimide film. The linear pattern strain gages are used to
measure strain in a single direction. They are often used for
experimental stress analysis applications. The strain gage
pattern is shown on the left side of the table. Notice the
“arrow” which indicates the principal stress direction.

To Order

GAGE PATTERN
Leads not shown

Shown

actual size

4.70 mm

V

Shown

actual size

7.60 mm

V

Shown

actual size

7.10 mm

MODEL NO.
Pkg of 10 A B C D

SGD-1.5/120-LY11

SGD-1.5/120-LY13

SGD-1.5/120-LY41

V

SGD-1.5/120-LY43

SGD-2/350-LY11

SGD-2/350-LY13

SGD-2/350-LY41

V

SGD-2/350-LY43

SGD-2D/350-LY11

SGD-2D/350-LY13

SGD-2D/350-LY41

V

V

SGD-2D/350-LY43

NOM.
RESIS­TANCE

(Ω)

120

120 3.5 Ribbon Leads AL

120 2.5 Solder Pads ST

120 3.5 Solder Pads AL

350

350 10 Ribbon Leads AL

350 7.5 Solder Pads ST

350 10 Solder Pads AL

350

350 14 Ribbon Leads AL

350 10 Solder Pads ST

350 14 Solder Pads AL

GRID CARRIER

1.50 1.20 4.70 3.40

(0.059) (0.047) (0.185) (0.134)

Miniature linear pattern
Measurement of stress

2.00 2.50 7.60 5.80

(0.079) (0.098) (0.299) (0.228)

Miniature linear pattern
Measurement of stress

concentration, higher resistance

reduced heat generation 350 Ω

1.90 4.80 7.10 6.60

(0.075) (0.189) (0.280) (0.260)

Miniature linear pattern

The linear pattern strain gages are available in a variety or
styles and sizes. OMEGA is offering miniature linear patterns
for strain measurement of a stress concentration
or high gradient areas. We also have wide or narrow grid
patterns, and small, medium or large patterns. To determine
if the strain gages have temperature characteristics matched
to steel or aluminum, see the column labeled “COMP”
short for compensation, “ST” indicates steel, “AL” indicates
aluminum, “UNC” indicates uncompensated. See the column
labeled “BTP” for accessory bondable terminal pad model
numbers.

Dimensions are listed for pattern gage grid length (A) and
width (B), and the matrix or carrier length (C) and width
(D). The patterns include alignment triangles. The carrier or
matrix material on the patterns may be trimmed in the field
on all sides to within 0.25 mm of the foil grid with no effect on
strain gage performance.

DIMENSIONS

mm (inch)

†

concentration

120 Ω

grid width, wide

350 Ω

MAX V*

(Vrms)

TERMINATION

2.5 Ribbon Leads ST

7.5 Ribbon Leads ST

10 Ribbon Leads ST

Visit us online

TEMP
COMP

TERM
PAD

BTP-1

BTP-1

BTP-2

STRAIN GAGES

E

Shown

actual size

7.00 mm

V

SGD-3/350-LY11

SGD-3/350-LY13

SGD-3/350-LY41

V

SGD-3/350-LY43

DISCOUNT SCHEDULE

1 to 10 pkgs .................. Net

11 to 24 pkgs ..................5%

25 to 49 pkgs .................10%

50 and up and OEM ..Consult Factory

350

350 13 Ribbon Leads AL

350 9.5 Solder Pads ST

350 13 Solder Pads AL

† For dimensions key, visit us online.

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories visit us online.
Ordering Example: SGD-3/350-LY11, 3.2 mm grid,

350 Ω nominal-resistance strain gage.

3.20 2.50 7.00 4.00

(0.126) (0.098) (0.276) (0.157)

linear pattern leads/ pads at

on end of grid

350 Ω

9.5 Ribbon Leads ST

Custom-Designed

Strain Gages

Available!

No Minimum Quantities.

Consult Engineering.

E-16

NOTE

ST = Steel
AL = Aluminum

BTP-3

PRECISION STRAIN GAGE

SGD-3/120-LY11_13_41_43

SGD-3S/120-LY11

3.294 mm

12-CONDUCTORS

LIMB WIDTH 0.0485 mm

GAP WIDTH 0.0640 mm

SGD-4/120-LY11

7.078 mm

26-CONDUCTORS

LIMB WIDTH 0.106 mm

GAP WIDTH 0.086 mm

AGL 3.8 mm

SGD-5/350-LY11

5.185 mm

28-CONDUCTORS

LIMB 0.053 mm

GAP 0.048 mm

AGL 4.5 mm

PRECISION LINEAR PATTERN FOR STATIC AND
DYNAMIC APPLICATIONS

To Order

GAGE PATTERN
Leads not shown

Shown

actual size

7.80 mm

V

MODEL NO.
Pkg of 10 A B C D

SGD-3/120-LY11

SGD-3/120-LY13

SGD-3/120-LY41

V

SGD-1.5/120-LY43

DIMENSIONS

mm (inch)

NOM.

RESIS-

GRID CARRIER

TANCE

(Ω)

120

3.00 1.50 7.80 3.80

120 5.5 Ribbon Leads AL

(0.118) (0.059) (0.307) (0.150)

Linear pattern,

120 4 Solder Pads ST

grid width narrow

120 Ω

120 5.5 Solder Pads AL

†

MAX V*

(Vrms)

4 Ribbon Leads ST

TERMINATION

Visit us online

TEMP
COMP

TERM
PAD

BTP-3

Shown

actual size

6.60 mm

SGD-3S/120-LY11

SGD-3S/120-LY13

SGD-3S/120-LY41

V

Shown

actual size

7.90 mm

V

SGD-3S/120-LY43

SGD-4/120-LY11

SGD-4/120-LY13

SGD-4/120-LY41

V

Shown

actual size

9.80 mm

V

DISCOUNT SCHEDULE

1 to 10 pkgs .................. Net

11 to 24 pkgs ..................5%

25 to 49 pkgs .................10%

V

SGD-4/120-LY43

SGD-5/350-LY11

SGD-5/350-LY13

SGD-5/350-LY41

V

SGD-5/350-LY43

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories visit us online.
Ordering Example: SGD-4/120-LY13, 3.8 mm grid,

120 Ω nominal-resistance strain gage.

50 and up and OEM ..Consult Factory

TYPICAL STRAIN GAGE INSTALLATION

120

3.00 1.70 6.60 3.30

120 6 Ribbon Leads AL

(0.118) (0.067) (0.260) (0.130)

4.5 Ribbon Leads ST

Linear pattern,

120 4.5 Solder Pads ST

120 6 Solder Pads AL

120

3.80 5.70 7.90 7.10

120 12 Ribbon Leads AL

(0.150) (0.224) (0.311) (0.280)

small size

120 Ω

9 Ribbon Leads ST

Linear pattern,

120 9 Solder Pads ST

grid width wide

120 Ω

120 12 Solder Pads AL

350

4.50 3.20 9.80 5.20

350 17 Ribbon Leads AL

(0.177) (0.126) (0.386) (0.205)

12 Ribbon Leads ST

Linear pattern,

350 12 Solder Pads ST

medium size

350 Ω

350 17 Solder Pads AL

NOTE

ST = Steel
AL = Aluminum

Custom-Designed

Ribbon Leads from
Strain Gage or User Supplied
Fine Gage Wire (30 AWG)

Strain Gages

Available!

No Minimum Quantities.

Consult Engineering.

Instrumention Wire
20 to 28 AWG

† Dimensions Key:

BTP-3

BTP-3

BTP-4

C
A

BD

GRID
A: Active gage length
B: Active gage width

Adhesive

Bondable Terminal Pads (BTP) for Stress Relief
and Junction for Different-Gage Wires

E-17

CARRIER
C: Matrix length
D: Matrix width

PRECISION STRAIN GAGE

SGD-6/120-LY11

5.134 mm

12-CONDUCTORS

LIMB WIDTH 0.090 mm

GAP WIDTH 0.112 mm

AGL 6.5 mm

SGD-7/350-LY11

5.134 mm

20-CONDUCTORS

LIMB WIDTH 0.0553 mm

GAP WIDTH 0.068 mm

SGD-7/1000-LY11

5.605 mm

34-CONDUCTORS

LIMB WIDTH 0.040 mm

GAP WIDTH 0.047 mm

SGD-10/120-LY11

8 mm

14-CONDUCTORS

LIMB WIDTH 0.162 mm

GAP WIDTH 0.100 mm

PRECISION LINEAR PATTERN FOR STATIC AND
DYNAMIC APPLICATIONS

To Order

GAGE PATTERN
Leads not shown

Shown

actual size

11.4 mm

MODEL NO.
Pkg of 10 A B C D

SGD-6/120-LY11

SGD-6/120-LY13

SGD-6/120-LY41

V

V

SGD-6/120-LY43

DIMENSIONS

mm (inch)

NOM.

RESIS-

GRID CARRIER

TANCE

(Ω)

120

6.50 3.10 11.40 5.10

120 12 Ribbon Leads AL

(0.256) (0.122) (0.449) (0.201)

Linear pattern,

120 9 Solder Pads ST

medium size

120 Ω

120 12 Solder Pads AL

†

MAX V*

(Vrms)

9 Ribbon Leads ST

TERMINATION

Visit us online

TEMP
COMP

TERM
PAD

BTP-4

Shown

actual size

11.4 mm

SGD-7/350-LY11

SGD-7/350-LY13

SGD-7/350-LY41

V

Shown

actual size

11.8 mm

V

SGD-7/350-LY43

SGD-7/1000-LY11

SGD-7/1000-LY13

SGD-7/1000-LY41

V

Shown

actual size

17.7 mm

SGD-7/1000-LY43

V

SGD-10/120-LY11

SGD-10/120-LY13

SGD-10/120-LY41

V

V

SGD-10/120-LY43

DISCOUNT SCHEDULE

1 to 10 pkgs .................. Net

11 to 24 pkgs ..................5%

25 to 49 pkgs .................10%

350

350 20 Ribbon Leads AL

350 15 Solder Pads ST

350 20 Solder Pads AL

1000

1000 37 Ribbon Leads AL

1000 27 Solder Pads ST

1000 37 Solder Pads AL

120

120 19 Ribbon Leads AL

120 14 Solder Pads ST

120 19 Solder Pads AL

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories visit us online.
Ordering Example: SGD-6/120-LY13, 6.5 mm grid,

120 Ω nominal-resistance strain gage.

50 and up and OEM ..Consult Factory

BONDABLE TERMINAL PADS

When installing strain gages with ribbon leads or
solder pads, use Bondable Terminal Pads (BTP)
between the strain gage and the wires to your
instrumentation.

The Bondable Terminal Pads provide a large easy
to use soldering area and provide strain relief between
the strain gage and the heavy instrument wires.

Using Bondable Terminal Pads is simple. Use the same
adhesive and bonding procedure on the Bondable
Terminal Pads as you use on the strain gage.

OMEGA offers BTPs in several sizes and wiring
configurations to fit most all strain gage applications.

6.50 3.10 11.40 5.10

(0.256) (0.122) (0.449) (0.201)

Linear pattern,

medium size

350 Ω

7.00 3.60 11.80 5.60

(0.276) (0.142) (0.465) (0.220)

Medium size, higher

resistance,

reduced heat genaration

1000 Ω

10.00 4.90 17.70 8.00

(0.394) (0.193) (0.697) (0.315)

Linear pattern,

Large size

120 Ω

Terminal pad patterns.

BTP

BTPB

15 Ribbon Leads ST

27 Ribbon Leads ST

14 Ribbon Leads ST

Custom-Designed

Strain Gages

Available!

No Minimum Quantities.

Consult Engineering.

† Dimensions Key:

BTPD

BTPC

GRID
A: Active gage length

BTPE

B: Active gage width
CARRIER

C: Matrix length
D: Matrix width

BTP-5

BTP-5

BTP-5

NOTE

ST = Steel
AL = Aluminum

C
A

BD

STRAIN GAGES

E

E-18

SGD-10/350-LY11

8 mm

26-CONDUCTORS

LIMB WIDTH 0.097 mm

GAP WIDTH 0.066 mm

SGD-10/1000-LY11

8 mm

38-CONDUCTORS

LIMB WIDTH 0.055 mm

GAP WIDTH 0.0567 mm

SGD-13/350-LY11

10 mm

28-CONDUCTORS

LIMB WIDTH 0.129 mm

GAP WIDTH 0.103 mm

AGL 13 mm

SGD-13/1000-LY11

10 mm

28-CONDUCTORS

LIMB WIDTH 0.129 mm

GAP WIDTH 0.103 mm

AGL 13 mm

PRECISION STRAIN GAGE

12 mm

40 mm

PRECISION LINEAR PATTERN AND EXTRA LONG PATTERN

To Order

RESIS-

GAGE PATTERN
Leads not shown

Shown

actual size

17.7 mm

MODEL NO.
Pkg of 10 A B C D

SGD-10/350-LY11

SGD-10/350-LY13

TANCE

SGD-10/350-LY41

V

Shown

actual size

17.7 mm

V

SGD-10/350-LY43

SGD-10/1000-LY11

SGD-10/1000-LY13

SGD-10/1000-LY41

V

Shown

actual size

22.7 mm

SGD-10/1000-LY43

V

SGD-13/350-LY11

SGD-13/350-LY13

SGD-13/350-LY41

V

Shown

actual size

22.7 mm

SGD-13/350-LY43

V

SGD-13/1000-LY11

SGD-13/1000-LY13

SGD-13/1000-LY41

V

DISCOUNT SCHEDULE

1 to 10 pkgs .................. Net

11 to 24 pkgs ..................5%

25 to 49 pkgs .................10%

50 and up and OEM ..Consult Factory

V

SGD-13/1000-LY43

† For dimensions key, visit us online.

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories, visit us online.
Ordering Example: SGD-13/350-LY13, 13 mm grid,

350 Ω nominal-resistance strain gage.

Extra-Long For Inhomogeneous Material

DIMENSIONS

mm (inch)

NOM.

GRID CARRIER

(Ω)

350

350 32 Ribbon Leads AL

10.00 4.90 17.70 8.00

(0.394) (0.193) (0.697) (0.315)

Linear pattern,

350 22 Solder Pads ST

350 32 Solder Pads AL

1000

1000 55 Ribbon Leads AL

10.00 4.90 17.70 8.00

(0.394) (0.193) (0.697) (0.315)

Linear pattern, large size,

1000 40 Solder Pads ST

1000 55 Solder Pads AL

350

350 40 Ribbon Leads AL

13.00 7.20 22.70 10.00

(0.511) (0.283) (0.893) (0.393)

large size

350 Ω

higher resistance,

reduced heat generation

1000 Ω

Linear pattern,

350 30 Solder Pads ST

350 40 Solder Pads AL

1000

1000 75 Ribbon Leads AL

(0.511) (0.283) (0.893) (0.393)
Linear pattern, grid length long,

1000 55 Solder Pads ST

1000 75 Solder Pads AL

grid length long

350 Ω

13.00 7.20 22.70 10.00

higher resistance, reduced

heat generation

1000 Ω

†

MAX V*

(Vrms)

TERMINATION

22 Ribbon Leads ST

40 Ribbon Leads ST

30 Ribbon Leads ST

55 Ribbon Leads ST

Visit us online

TEMP
COMP

NOTE

ST = Steel
AL = Aluminum

TERM
PAD

BTP-5

BTP-5

BTP-6

BTP-6

To Order

GAGE PATTERN
Leads not shown

Shown smaller

than actual
size 50 mm

V

V

DIMENSIONS mm (inch)

NOM.

MODEL NO.
Pkg of 5

SGD-30/120-LY40

SGD-30N/120-LY40

SGD-30/350-LY40

SGD-50/120-LY40

SGD-150/240-LY40

† For dimensions key,visit us online.

Maximum permitted bridge energizing voltage (Vrms).

*

Note: For strain gage accessories, visit us online.
Ordering Example: SGD-30/120-LY40, 120 Ω nominal-resistance strain gage.

RESIS­TANCE

(Ω)

120

120

350

120

240

GRID CARRIER

A B C D

25.00

(0.984)

30.00

(1.181)

30.00

(1.181)

50.00

(1.969)

150.00
(5.906)

8.00

(0.315)

3.00

(0.118)

3.00

(0.118)

4.30

(0.169)

5.00

(0.197)

40.00

(1.575)

36.00

(1.417)

36.00

(1.417)

60.00

(2.362)

165.00
(6.496)

†

12.00

(0.472)

5.00

(0.197)

5.00

(0.197)

9.00

(0.354)

9.00

(0.354)

MAX V*

(Vrms)

12 Solder Pads UNC

10 Solder Pads UNC

14 Solder Pads UNC

12 Solder Pads UNC

35 Solder Pads UNC

E-19

TERMINATION

NOTE

TEMP
COMP

TERM
PAD

BTP-6

UNC = Uncompensated