Sales and Cor po rate Offi ce
1717 Chicago Av e nue
Riverside, California 92507-2364
Phone: (951) 788-1700
Fax: (951) 369-1151
Applications Engineering
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Fax: (541) 496-0408
e-mail: caddock@caddock.com • web: www.caddock.com
For Caddock Distributors listed by country see caddock.com/contact/dist.html
© 2004 Caddock Electronics, Inc.
CAD KDOC
65432
1
7
65432
1
7
65432
1
7
65432
1
7
65432
1
7
Input Voltage Dividers for Digital Multimeters and Range-Switching Instruments
Introducing New Smaller Models at Lower Cost
The exceptional performance of this extensive family of
Type 1776 Precision Decade Resistor Voltage Dividers has
There are now 39 standard models in the expanded
family of Type 1776 precision resistor networks that include:
For complete information on quantity price and delivery,
contact our Sales Offi ce.
• 3, 4, and 5 - decade voltage
dividers with ratios from 10:1 to
10,000:1.
• 1,200 volts continuous ratings
and overvoltage to 2,000 volts.
• Many combinations of Ratio and
Absolute Tolerance, and Ratio
and Absolute Temperature
Coeffi cient.
been achieved through the special
combination of advantages
provided by Caddock's Tetrinox®
resistance fi lms. This advanced
film resistor technology provides
the performance characteristics
required by the precision input
signal circuits of both bench-type
and laboratory digital instruments.
In addition to requiring less
board space, these compact
pre ci sion resistor networks deliver higher performance than
selected discrete resistor sets and thin-fi lm networks.
Schematic for
Model 1776-C68
Type 1776 Precision Decade Resistor Voltage Dividers
(Numbers inside circles
reference columns in Model No.
table)
Ratio Tolerance: Maximum
ra tio error. (See the specific
Figures for the Ra tio Defi nition).
Ratio Temperature Coeffi cient:
Maximum ra tio TC error. (See
the specific Figures for the
Ra tio Defi nition).
Range 1: -40°C to +85°C.
Range 2: 0°C to +70°C.
Voltage Coefficient of Ratio
(ppm/volt): R1 in series with any
combination of R2, R3, R4, and
R5, 100 volts to rated voltage.
Load Life: Ratio stability of
re sis tance under full load at
+70°C, rated voltage applied to
R1 in series with any combination
of R2, R3, R4, and R5 for 2000 hrs.
Shelf Stability of Ratio: Six
months at shelf conditions.
Overvoltage: Maximum voltage
of 1.67 times rated DC voltage.
Volts DC or peak AC applied to
R1 and any combination of R2,
R3, R4, and R5 in series with R1
for 10 seconds.
Voltage Rating: DC or RMS
AC voltage applied to R1 in
se ries with any combination of
R2, R3, R4, and R5.
Storage Temperature: -40°C
to +85°C.
Specifi cations:
65432
1
7
65432
1
7
Ratio
Tolerance
%
Fig.
Resistance Values
Model
No.
Ratio Stability
% Change in Ratio
Over-
Voltage
1776-C61
1200 0.1
0.1
30
10
Shelf
Life
Load
Life
0.01
0.0050.01
Voltage
Coef.
of Ratio
ppm/volt
0.1
Ratio
TC
ppm/°C
Abs. TC
ppm/°C
Absolute
Tolerance
%
Voltage
Rating
R1
R2R3R4R5
9 Meg
900 K
90 K
9 K
900
6
1
2
3
4
5
6
7
1776-C611
1200
0.1
0.05
30
10
0.01
0.005
0.010.1
9 Meg
900 K
90 K 9 K 900
6
1776-C62
1200
0.1
0.1
30
10
0.01
0.005
0.010.1
9 Meg
900 K
90 K 9 K 1 K
6
1776-C621
1200
0.1
0.05
30
10
0.01
0.005
0.010.1
9 Meg
900 K
90 K 9 K 1 K
6
1776-C742
1200
0.25
0.25
50
50
0.04
0.02
0.040.5
9 Meg
900 K
90 K 9 K 1 K
7
1776-C74
1200
0.1
0.1
50
50
0.04
0.02
0.040.5
9 Meg
900 K
90 K 9 K 1 K
7
1776-232
1200
0.25
0.25
50
50
0.04
0.02
0.040.3
9 Meg
900 K
90 K 9 K 900
3
1776-23
1200
0.1
0.1
50
50
0.02
0.01
0.020.2
9 Meg
900 K
90 K 9 K 900
3
1776-242
1200
0.25
0.25
50
50
0.04
0.02
0.040.3
9 Meg
900 K
90 K 9 K 1 K
3
1776-24
1200
0.25
0.1
50
50
0.02
0.01
0.020.2
9 Meg
900 K
90 K 9 K 1 K
3
1776-241
1200
0.25
0.05
50
50
0.02
0.01
0.020.2
9 Meg
900 K
90 K 9 K 1 K
3
1776-105
1200
+0, -0.5
0.1
30
5
0.01
0.005
0.010.02
9 Meg
900 K
90 K 10 K N/A
4
1776-C10
1200
+0, -0.5
0.1
30
10
0.01
0.005
0.010.02
9 Meg
900 K
90 K 10 K N/A
9
1776-C105
1200
+0, -0.5
0.1
30
5
0.01
0.005
0.010.02
9 Meg
900 K
90 K 10 K N/A
9
1776-1
1200
0.25
0.05
30
10
0.01
0.005
0.010.02
9 Meg
900 K
90 K 10 K N/A
2
1776-14
1200
0.25
0.1
30
10
0.01
0.005
0.010.02
9 Meg
900 K
90 K 10 K N/A
2
1776-8
1200
0.25
0.1
30
25
0.02
0.01
0.020.2
9.9 Meg
90 K
10 K N/A N/A
1
1776-9
1200
0.25
0.1
30
10
0.01
0.005
0.010.02
9.9 Meg
90 K
10 K N/A N/A
1
1776-91
1200
0.25
0.05
30
10
0.01
0.005
0.010.02
9.9 Meg
90 K
10 K N/A N/A
1
1776-912
1200
0.25
0.02
30
5
0.01
0.005
0.010.02
9.9 Meg
90 K
10 K N/A N/A
1
1776-C4
1200
0.25
0.25
30
10
0.01
0.005
0.010.1
10 Meg
1.1111M
101.01K 10.01K 1.0001K
8
1776-C44
1200
0.1
0.1
30
10
0.01
0.005
0.010.1
10 Meg
1.1111M
101.01K 10.01K 1.0001K
8
1776-C441
1200
0.1
0.05
30
10
0.01
0.005
0.010.1
10 Meg
1.1111M
101.01K 10.01K 1.0001K
8
1776-C34
1200
0.25
0.25
50
50
0.04
0.02
0.040.5
10 Meg
1.1111M
101.01K 10.01K 1.0001K
8
1776-C532
750
0.25
0.25
25
25
0.02
0.01
0.020.4
900 K
90 K
9 K 900 N/A
5
1776-C53
750
0.1
0.1
25
15
0.02
0.01
0.020.3
900 K
90 K
9 K 900 N/A
5
1776-C542
750
0.25
0.25
25
25
0.02
0.01
0.020.4
900 K
90 K
9 K 1 K N/A
5
1776-C54
750
0.1
0.1
25
15
0.02
0.01
0.020.3
900 K
90 K
9 K 1 K N/A
5
1776-C541
750
0.1
0.05
25
15
0.02
0.01
0.020.3
900 K
90 K
9 K 1 K N/A
5
1776-C6217
1200
0.1
0.02
30
10
0.01
0.005
0.010.1
9 Meg
900 K
90 K 9 K 1 K
6
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
Range 2
TC
Temp.
Range
2
1776-C67
9 Meg
900 K
1776-C671
1200
0.1
0.05
30
10
0.01
9 Meg
900 K
90 K 9 K 900
1776-C6715
1200
0.1
30
5
0.01
9 Meg
900 K
90 K 9 K
1776-C68
1200
0.1
30
10
0.01
9 Meg
900 K
90 K 9 K 1 K
1776-C6815
1200
9 Meg
900 K
90 K 9 K 1 K
1776-C48
1200
0.1
0.1
1776-C481
1200
1776-C681
1200
0.1
30
10
0.01
9 Meg
900 K
90 K 9 K 1 K
Range 1
Range 1
Range 1
Range 1
Range 1
Range 1
Range 1
1776-C4815
1200
Range 1
900
10 Meg
1.1111M
101.01K 10.01K 1.0001K
10 Meg
1.1111M
101.01K 10.01K 1.0001K
10 Meg
1.1111M
101.01K 10.01K 1.0001K
10
10
10
10
10
11
11
11
0.1
0.1
0.1
0.05
0.1
0.05
0.05
0.05
0.05
30
30
30
30
5
10
10
5
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.03
0.01
0.01
0.01
0.01
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
1200 0.1
0.1
30
10
0.0030.01
0.04
90 K 9 K 900
10
Range 1
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
NewNew
= VOUT
= VOUT
= VOUT
= VOUT
1
2
3
4
VIN
10
VIN
VIN
100
VIN
1,000
VIN
10,000
9K
90K
900K
9M
1K
Page 1 of 2
28_IL118.1004
Sales and Cor po rate Offi ce
1717 Chicago Av e nue
Riverside, California 92507-2364
Phone: (951) 788-1700
Fax: (951) 369-1151
Applications Engineering
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Fax: (541) 496-0408
e-mail: caddock@caddock.com • web: www.caddock.com
For Caddock Distributors listed by country see caddock.com/contact/dist.html
© 2004 Caddock Electronics, Inc.
CAD KDOC
RATIO DEFINITION: Where RT = R1 + R2 + R3 + R4 + R5
RATIO 1 (R2 + R3 + R4 + R5):RT
RATIO 2 (R3 + R4 + R5):RT
RATIO 3 (R4 + R5):RT
RATIO 4 (R5):RT
.550 ±.020
(13.97 ±.51)
1.600 ±.020
(40.64 ±.51)
.020 ±.002
(.51 ±.05)
.150 ±.040
(3.81 ±1.02)
.900 (22.86)
1.100 (27.94)
1.300 (33.02)
1.500 (38.10)
.700 (17.78)
.010 ±.002
(.26 ±.05)
CADDOCK
0403 1776-C73
.100
(2.54)
MAX.
PIN 1
.050
(1.27)
.550 ±.020
(13.97 ±.51)
1.500 ±.020
(38.10 ±.51)
.020 ±.002
(.51 ±.05)
.150 ±.040
(3.81 ±1.02)
.900 (22.86)
1.100 (27.94)
1.200 (30.48)
1.300 (33.02)
.700 (17.78)
.010 ±.002
(.26 ±.05)
CADDOCK
0420 1776-C34
1.400 (35.56)
.100
(2.54)
MAX.
PIN 1
.050
(1.27)
.600 ±.020
(15.24 ±.51)
1.600 ±.020
(40.64 ±.51)
.020 ±.002
(.51 ±.05)
.150 ±.040
(3.81 ±1.02)
.800 (20.32)
1.000 (25.40)
1.100 (27.94)
1.300 (33.02)
.700 (17.78)
.010 ±.002
(.26 ±.05)
CADDOCK
0405 1776-C10
1.400 (35.56)
1.500 (38.10)
.100
(2.54)
MAX.
PIN 1
.050
(1.27)
1.200 ±.020
(30.48 ±.51)
.550 ±.020
(13.97 ±.51)
.100
(2.54)
MAX.
CADDOCK
0
4
17 1776-C54
.020 ±.002
(.51 ±.05)
.150 ±.040
(3.81 ±1.02)
.800 (20.32)
.900 (22.86)
1.100 (27.94)
.600 (15.24)
.010 ±.002
(.26 ±.05)
PIN 1
.050
(1.27)
1.700 ±.020
(43.18 ±.51)
.750 ±.020
(19.05 ±.51)
CADDOCK ELECTRONICS
MODEL 1776-10 0402
.250 ±.050
(6.35 ±1.27)
.800 (20.32)
1.000 (25.40)
1.100 (27.94)
1.300 (33.02)
1.400 (35.56)
1.500 (38.10)
.700 (17.78)
.090
(2.29)
MAX.
.025 ±.002
(.64 ±.05) DIA.
Tinned Copper
PIN 1
.100
(2.54)
2.000 ±.020
(50.80 ±.51)
.680 ±.020
(17.27 ±.51)
.250 ±.050
(6.35 ±1.27)
1.000 (25.40)
1.200 (30.48)
1.500 (38.10)
1.800 (45.72)
.800 (20.32)
CADDOCK ELECTRONICS
MODEL 1776-23 0419
.090
(2.29)
MAX.
.025 ±.002
(.64 ±.05) DIA.
Tinned Copper
PIN 1
.100
(2.54)
.750 ±.020
(19.05 ±.51)
1.700 ±.020
(43.18 ±.51)
CADDOCK ELECTRONICS
MODEL 1776-1 0404
.250 ±.050
(6.35 ±1.27)
1.200 (30.48)
1.400 (35.56)
1.500 (38.10)
.900 (22.86)
.090
(2.29)
MAX.
.025 ±.002
(.64 ±.05) DIA.
Tinned Copper
PIN 1
.100
(2.54)
.680
±.020
(17.27 ±.51)
1.500 ±.020
(38.10 ±.51)
.090
(2.29)
MAX.
.025 ±.002
(.64 ±.05) DIA.
Tinned Copper
PIN 1
.250 ±.050
(6.35 ±1.27)
.100
(2.54)
1.100 (27.94)
1.300 (33.02)
.900 (22.86)
CADDOCK ELECTRONICS
MODEL 1776-81 0408
R1R2R3R4
1 2 3 4 5
R1R2
1 2 3
R3R4
4 5
R5
6
R1R2R3R4
1 2 3 4 5
1 2 3 4
R1R2R3
R1R2
1 2 3 4
R3R4
5 6 7 8
R1
R2
1 2 4
R3R4
5 6
R5
73
R1R2
1 2 3
R3R4
4 5
R5
6
R1R2
1 2 3 4
R3R4
5 6 7 8
R1R2
1 2 3
R3R4
4 5
R5
6
Figure 3Figure 2Figure 1
Figure 6Figure 5Figure 4
RATIO DEFINITION:
RATIO 1 R1:R2
RATIO 2 R1:R3
RATIO 3 R1:R4
RATIO 4 R1:R5
Figure 9Figure 8Figure 7
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
RATIO DEFINITION:
ALL RESISTORS RATIO
ONE ANOTHER
DIMENSIONS IN INCHES AND (MILLIMETERS)
.550 ±.020
(13.97 ±.51)
1.400 ±.020
(35.56 ±.51)
.020 ±.002
(.51 ±.05)
.150 ±.040
(3.81 ±1.02)
.900 (22.86)
1.000 (25.40)
1.100 (27.94)
1.300 (33.02)
.700 (17.78)
CADDOCK
041
1 1776-C62
.010 ±.002
(.26 ±.05)
.100
(2.54)
MAX.
PIN 1
.050
(1.27)
Figure 11
Figure 10
Lead Form Detail Note: Lead
form detail provides interference
in the circuit board hole to achieve
a vertical mount of the device.
Recommended circuit board hole is
nominally 0.039 inch (.99 mm).
R1R2
1 2 3
R3R4
4 5
R5
6
R1
R2
1 2 4
R3R4
5 6
R5
73
RATIO DEFINITION: Where RT = R1 + R2 + R3 + R4 + R5
RATIO 1 (R2 + R3 + R4 + R5):RT
RATIO 2 (R3 + R4 + R5):RT
RATIO 3 (R4 + R5):RT
RATIO 4 (R5):RT
RATIO DEFINITION:
RATIO 1 R1:R2
RATIO 2 R1:R3
RATIO 3 R1:R4
RATIO 4 R1:R5
1.000 ±.020
(25.40 ±.51)
.050
(1.27)
0.530 ±.020
(13.46 ±.51)
0.020 ±.002
(0.51 ±.05)
.500 (12.70)
0.110
(2.79)
Max.
0.010 ±.002
(0.25 ±.05)
.600 (15.24)
.700 (17.78)
.800 (20.32)
.900 (22.86)
See Lead Form
Detail Note.
.150 ±.040
(3.81 ±1.02)
CADDOCK
0
4
17 1776-C
68
PIN 1
1.200 ±.020
(30.48 ±.51)
.050
(1.27)
0.530 ±.020
(13.46 ±.51)
0.020 ±.002
(0.51 ±.05)
.500 (12.70)
0.110
(2.79)
Max.
0.010 ±.002
(0.25 ±.05)
.700 (17.78)
.800 (20.32)
.900 (22.86)
1.000 (25.40)
1.100 (27.94)
See Lead Form
Detail Note.
.150 ±.040
(3.81 ±1.02)
CADDOCK
0
4
17 1776-C
48
PIN 1
New
Smaller Models
Lower Cost
New Smaller Models at Lower Cost
Page 2 of 2
28_IL118.1004
