Surface Mount Series 768
Bussed CTS Schematic 1
N
(Ohms) EIA Code
0
*
10
12
15
18
22
27
33
39
47
51
56
68
82
100
110
120
150
180
200
220
270
330
390
470
510
560
680
820
1000
1100
1200
1500
1800
2000
2200
2700
*3Ω max
000X
100
120
150
180
220
270
330
390
470
510
560
680
820
101
111
121
151
181
201
221
271
331
391
471
511
561
681
821
102
112
122
152
182
202
222
272
(Ohms) EIA Code
3300
3900
4700
5100
5600
6800
8200
10000
11000
12000
15000
18000
20000
22000
27000
33000
39000
47000
56000
68000
82000
100000
110000
120000
150000
180000
200000
220000
270000
330000
390000
470000
560000
680000
820000
1000000
332
392
472
512
562
682
822
103
113
123
153
183
203
223
273
333
393
473
563
683
823
104
114
124
154
184
204
224
274
334
394
474
564
684
824
105
0.20
-0.03
0.008
+0.002
-0.001
+0.05
"A" DIM.
1
N/2
Medium Body, Small Outline Products
• Low profile—board to network clearance
of 0.005”/0.010”
• Conforms to EIA PDP-100 SOGN-0002
• 24mm tape & reel or slide
• Application specific circuits are available
• No internal dendrite growth
• Compatible with all solder processes
Wave, IR reflow, Vapor phase reflow
• Recommended for bottom side attachment
Resistance Range:
Standard: 10Ω to 1 MegΩ
Resistance Tolerance:
Standard: ±2% or 0.5Ω (whichever is greater)
Special: ±0.25% or 0.3Ω (whichever is greater)
Maximum Operating Voltage:
50V not to exceed rated power
Temperature Coefficient:
Standard: 100Ω to 1 MegΩ
±100PPM/°C typical
10Ω to 99Ω
±200 PPM/°C typical
Operating Temperature Range:
-55°C to +125°C
Dielectric Strength:
100 VAC
Power Rating
(Total Network Power):
14 Pin 16 Pin 20 Pin
@25°C
2.0w
2.3w
3.0w
@70°C
1.3 w
1.5w
2.0w
Maximum Resistor Power:
(not to exceed total network power)
Schematic 1
3
5
7
@25°C
0.15w 0.3w 0.15w 0.15w
@70°C
0.1w 0.2w 0.1w 0.1w
Isolated CTS Schematic 3
0.81
0.032
+0.33
- 0.30
+0.013
- 0.012
7.62
0.300
PART NO.
CTS DATE
5.59
0.220
+0.13
- 0.25
+0.005
- 0.010
N
0 to 8° BELOW
SEATING
PLANE
PIN #1 MARK
1
N/2
Dual Terminator CTS Schematic 5
N
N/2 +1
R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1
INSULATION COATING
APPLIED ON TWO SURFACES
1.60
±0.20
0.063
±0.008
1.35
MAX. TYP.
0.053
±0.06
0.19
0.0075
±0.0025
R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1
1
N/2
NOTE #1
0.43
±0.05
0.017
±0.002
1.27
TYP.
0.050
R/2R Ladder CTS Schematic 7
OUT
N
GND
R
R
R
R
R
R
R
2R
2R
2R
2R
2R
2R
No. of
Pins
“A”
Dimension
Notes:
1 Lead COPLANARITY 0.10 MAX.
0.004
2 mm & inch DIMENSIONS
ARE NOT EQUIVALENT
3 General Tolerances mm ±0.25
inch ±0.010
4 Dimensions are mm/in.
1
N/2
14
9.91
0.390
11.18
+
-
+
-
+
-
+
-
+
-
+
-
0.25
0.13
0.010
0.005
0.25
0.13
0.010
0.005
0.25
0.13
0.010
0.005
How to Order
Series 768 Products
Application specific custom
products are marked with either
a customer part number or a
non-descriptive CTS part number.
Send documentation to a CTS Sales
Office giving schematic, resistor
values and tolerance, and other
non-standard information. See
pages 24-25 for application notes.
768
Series 768
14
3
101
Resistor Code
See Page 32
Schematic 5
G
TR
16
0.440
13.70
20
0.540
Application Notes pages 24-25
Power Derating
Land Patterns
Packaging
Environmental
Performance
Specifications
page 33
pages 34-35
pages 36-37
Number of Pins 14
16
20
Schematic
1
3
5
7
Bussed
Isolated
Dual Terminator
Ladder
Packaging - TR - Tape & Reel
SP - Slide Pack (see page 36)
Tolerance
Schematic
1&3
J= ±5%
G= ±2%
F= ±1%
D= ±1/2%
Schematic
5
All 5 schematic
products are
2% tolerance.
(not marked)
Schematic
7
F= ±1LSB
D= ±1/2LSB
(LSB=Least
Significant Bit)
pages 38-39
NOTE:
No dashes or spaces to appear in part number.
Example:
768143101GTR
See page 33 for part marking information.
CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com 768B
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D u a l Te rm i n a t o r
CTS Dual Terminator Schematics
Standard CTS Dual Terminator products contain (2N-2) resistors
of two different values with each resistor value connected to a
common buss. CTS assigns the resistance value portion of the
standard part numbers of the dual terminator network in two
different methods.
N
N/2 +1
R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1
Dual Terminator Resistor Values & Codes
R1 R2
Ohms
25
50
30
50
30 620
33 4.7K
36 620
43 620
68 189
75 620
80 220
81 130
81 2.2K
100 200
100 430
100 150
106 169
110 220
118 178
120 200
120 180
120 120
150 150
160 260
160 240
160 270
162 260
180 300
180 470
180 390
180 270
180 220
200 1.5K
220 330
220 270
220 220
240 170
240 620
250 250
270 470
Thevenin CTS
Equivalent Code
15 ohm
19 ohm
29 ohm
33 ohm
34 ohm
40 ohm
50 ohm
67 ohm
59 ohm
50 ohm
78 ohm
67 ohm
81 ohm
60 ohm
65 ohm
73 ohm
71 ohm
75 ohm
72 ohm
60 ohm
75 ohm
99 ohm
96 ohm
100 ohm
100 ohm
113 ohm
130 ohm
123 ohm
108 ohm
99 ohm
176 ohm
132 ohm
121 ohm
110 ohm
100 ohm
173 ohm
125 ohm
171 ohm
150A
190A
290A
330A
340A
400A
500B
670A
590A
500A
780A
670B
810A
600A
650A
730A
710A
750B
720A
600B
750A
990A
960A
101D
101B
111B
131C
121A
111A
101A
171D
131A
121B
111D
101C
171C
131B
171A
R1
R2
Ohms
270
271
330
330
330
330
330
360
360
390
470
470
470
500
560
560
680
750
750
1K
1K
1.1K
1.2K
1.5K
1.5K
2K
2.2K
2.2K
2.2K
3K
3K
3.3K
3.9K
4.7K
5K
6.8K
10K
50K
180
131
470
680
390
220
330
720
600
620
1K
680
940
500
910
1K
1K
750
2.3K
3.3K
2K
2.2K
1.2K
1.5K
3.3K
2K
5.6K
4.4K
3.3K
6.2K
2K
4.7K
3.3K
22K
5K
22K
51K
100K
Thevenin CTS
Equivalent Code
108 ohm
88 ohm
194 ohm
222 ohm
179 ohm
132 ohm
165 ohm
240 ohm
225 ohm
239 ohm
320 ohm
278 ohm
313 ohm
250 ohm
347 ohm
359 ohm
405 ohm
375 ohm
566 ohm
767 ohm
667 ohm
733 ohm
600 ohm
750 ohm
1031 ohm
1000 ohm
1579 ohm
1467 ohm
1320 ohm
2022 ohm
1200 ohm
1939 ohm
1788 ohm
3873 ohm
2500 ohm
5194 ohm
8361 ohm
33,333 ohm
111C
880A
191A
221A
181A
131D
171B
241B
231A
241A
321A
281A
311A
251A
351A
361A
401A
381A
571A
771A
671A
731A
601A
751A
102A
102B
162A
152A
132A
202A
122A
192A
182A
392A
252A
522A
842A
333A
Power Derating Curve for Resistor Networks
160%
140%
120%
Percent Rated Power
100%
80%
R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1
60%
1
N/2
40%
The Series 770 part number includes the actual values of the
resistors in the dual terminator. For example:
770105180/470
R1=180Ω R2=470Ω
20%
0%
0
10
20
30
40
50
60
70
80
90
100
110
120
The Series 752, 766, 767 and 768 part number includes the EIA
Code value of the Thevenin equivalent resistances of R1 and R2.
The Thevenin equivalent resistance is calculated in the
following way: the suffix letter relates only to the sequence
of variations which equal the same equivalent resistance.
Reference chart.
Req = R1R2
(R1 + R2)
Examples:
766165131A
R1=220Ω
R2=330Ω
Req=132Ω
767145191A
R1=330Ω
R2=470Ω
Req=194Ω
768205131C
R1=180Ω
R2=470Ω
Req=130Ω
Pin N/2 is common to R2 and Pin #N is common to R1 on
CTS Series 766, 767 and 768 .
Pin #1 is common to R2 and Pin N is common to R1 on all
CTS Series 752, 753 and 770 dual terminator schematics.
1. All tolerances ±2%.
2. Other values available on request.
3. Suffix letter has no significance–assigned in sequential order.
Degrees Centigrade
Part Marking
The following chart indicates the characters marked on parts with standard marking.
Part
742, 743, 744
745, 746
752
12 & 24 pad
10 & 20 pad
9 & 18 pad
8 & 16 pad
753
12 & 24 pad
10 & 20 pad
9 & 18 pad
8 & 16 pad
766, 767, 768
770
Series
No. of
Pins/Pads
Schematic
R
Resistor Value
or Code
Tolerance
Date Code
YRWK
3-digit
3-digit
3-digit
3-digit
2-digit
2-digit
4-digit
4-digit
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Surface Mount Land Patterns
Concave and Convex Chip Resistor Arrays 742-746
"A"
Surface Mount Series 752
Stencil Opening
DRT
Solder Paste Stencil Opening
Surface Mount Series 753
Land Patterns
Dim.
In.
mm.
Stencil Opening
DRT
Solder Paste Stencil Opening
Land Patterns
Dim.
In.
mm.
K
Sw
S
Q
Concave/Convex
"B"
Series
Dimensions mm/inch
4 mil 752 0.66 0.76 1.52 0.38
0.026 0.030 0.060 0.015
6 mil 752 0.051 0.064 1.40 0.30
0.020 0.025 0.055 0.012
A
B
C
D
E
F
No. of
Pads
0.125
0.050
0.030
0.050
0.025
0.050
3.18
1.27
0.76
1.27
0.64
1.27
K
Sw
S
Q
4 mil 753 0.51 0.30 1.32 0.15
0.020 0.012 0.052 0.006
6 mil 753 0.028 0.030 1.47 0.15
0.011 0.012 0.058 0.006
A
B
C
D
E
F
0.120
0.025
0.017
0.050
0.020
0.035
3.05
0.64
0.43
1.27
0.51
0.89
A
B
C
D
742
"C"
1.80
0.071
1.90
0.075
3.00
0.118
3.00
0.118
1.52
0.060
0.80
0.032
1.27
0.050
1.27
0.050
1.27
0.050
0.64
0.025
0.50
0.020
0.80
0.032
0.80
0.032
0.80
0.032
0.35
0.014
0.90
0.035
1.20
0.047
1.30
0.051
1.30
0.051
0.80
0.032
Stencil Opening
SRT
Solder Paste Stencil Opening
“H” Dim
In.
mm
No. of
Pads
“H” Dim
In.
mm
743
744
"D"
8
9
10
12
16
18
20
24
0.350
0.400
0.450
0.550
0.350
0.400
0.450
0.550
8.89
10.16
11.43
13.97
8.89
10.16
11.43
13.97
Stencil Opening
SRT
Solder Paste Stencil Opening
8
9
10
12
16
18
20
24
0.175
0.200
0.225
0.275
0.175
0.200
0.225
0.275
4.44
5.08
5.72
6.99
4.44
5.08
5.72
6.99
745
746
K
Sw
S
Q
K
Sw
S
Q
4 mil 752 2.40 0.76
0.38
NA
0.095 0.030
0.015
6 mil 752 1.90 0.63
0.33
NA
0.075 0.025
0.013
4 mil 753 2.75 0.30
0.15
NA
0.108 0.012
0.006
6 mil 753 1.72 0.30
0.15
NA
0.068 0.012
0.006
NOTE:
s
Land Patterns for Concave and
Convex termination can be the same.
Surface Mount Series 766, 767 & 768
"C"
"B"
"A"
Lead
Count
A
B
C
D
Series 752 & 753 Land Patterns
DUAL ROW
TERMINATION
Series 752 & 753 Stencil Openings
"B"
"C"
"D"
"K"
"E"
"S"
Solder Paste
Stencil Opening
766-8P
766-14P
766-16P
3.60
0.140
3.60
0.140
3.60
0.140
5.34
0.210
5.34
0.210
5.34
0.210
5.34
0.210
5.34
0.210
5.60
0.220
5.60
0.220
5.60
0.220
7.37
0.290
7.37
0.290
7.37
0.290
7.37
0.290
7.37
0.290
7.60
0.300
7.60
0.300
7.60
0.300
9.40
0.370
9.40
0.370
9.40
0.370
9.40
0.370
9.40
0.370
3.81
0.150
7.60
0.300
8.90
0.350
7.60
0.300
8.90
0.350
7.60
0.300
8.90
0.350
11.43
0.450
"A"
SINGLE ROW
TERMINATION
"A"
"D"
0.63
TYP.
0.025
767-14
767-16
"F"
Keep out zone for stand offs.
Circuit board traces should be avoided
in this area to allow the stand off to rest
directly on the PCB.
Sw
Radius Q
Sw
1
.27
TYP.
0.050
768-14
768-16
"B"
"C"
"K"
2.03
TYP.
0.080
768-20
Radius Q
"F"
"H"
CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com SMLPB
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Standard Packaging
Series 752, 753, 766, 767, 768
Tape & Reel Specifications per EIA-481-2
Carrier Tape:
Cover Tape:
Reels:
Cover Tape Pull:
Slide Pacs:
Resistivity <1 X105 ohm/sq.
Antistatic .004 max.
Molded plastic
30 To 130 gr.
Antistatic
Bar Coding Available
Bar coding of reel and boxes available on request.
CTS normally uses code configuration 39 in
accordance with (AIM) USS 39 symbol specification.
Outer container marketing per EIA-556.
Series 753
Tape & Reel
TR1
TR2
Parts/reel
Tape width
Tape pitch
Reel diameter
5000 STD
1000 min.
16mm
4mm
13
"
2000 STD
1000 min.
16mm
8mm
13
"
Bulk Pack 250 parts/bag
DIRECTION OF FEED
PART #
PART #
PART #
PART #
PART #
Series 742,743,744,745, 746
Tape & Reel
742C043
742C083
742X083
742C163 743C043
743C083
744C043
744C083 745C101 745X101 746X101
745C102 745X102
Series 770
Bulk Pack
Slide Pack
All Products 250 Parts/Bag
Tube Length = 457mm/18 in
# Pins
Qty/Tube
4
50
5
40
6
32
7
28
8
24
9
22
10
19
11
18
12
16
Parts/Reel
Pitch
Carrier Width
Material
Reel diameter
5000
4mm
8mm
paper
7
"
5000
4mm
8mm
paper
7
"
4000
4mm
12mm
plastic
7
"
4000
4mm
8mm
plastic
7
"
4000
4mm
12mm
plastic
7
"
4000
4mm
8mm
plastic
7
"
4000
8mm
12mm
plastic
7
"
4000
4mm
12mm
plastic
7
"
4000
4mm
12mm
plastic
7
"
5000
4mm
8mm
paper
7
"
Series 766/767/768
Series 752
Tape & Reel
TR1
TR2
PART NO. CTS DATE
PART NO. CTS DATE
PART NO. CTS DATE
PART NO. CTS DATE
PART NO. CTS DATE
PART NO. CTS DATE
Network
Package
8 Pin
766
12mm
8mm
13
"
3,000
7
"
800
20
"
99ii
14 Pin
766
16mm
8mm
13
"
3,000
7
"
800
20
"
56ii
16 Pin
766
16mm
8mm
13
"
3,000
7
"
800
20
"
49ii
14 Pin
767/768
24mm
12mm
13
"
2,000
16 Pin
767/768
24mm
12mm
13
"
2,000
20 Pin
768
24mm
12mm
13
"
2,000
Bulk Pack 250 parts/bag
Tape & Reel
Parts/reel
Tape width
Tape pitch
Reel diameter
5000 STD
1000 min.
24mm
4mm
13
"
2000 STD
1000 min.
24mm
12mm
13
"
Tape width
Tape pitch
Reel diameter
#parts/reel*
Reel diameter
#parts/reel*
Slide Packs
CTS DATE
PART NO.
DIRECTION OF FEED
Tube length
#parts/slide pac*
20
"
48ii
20
"
43ii
20
"
35ii
DIRECTION OF FEED
*nominal full reels or slide packs
CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com SPB
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Environmental Performance Specifications
Test
Max.
∆R
Mil. Std.
202 Method
Test
Cond.
Test Description
Test
Max.
∆R
Mil. Std.
202 Method
Test
Cond.
Test Description
Thermal Cycling
Series 752, 753, 766, 770
Series 767, 768
Series 742, 743, 744, 745, 746
Short Time Overload
Series 766, 770
Series 752, 753
Series 767, 768
Series 742, 745
Series 743
Series 744
Series 746
Moisture Resistance
Series 752, 753, 766, 767,
768, 770
Series 742, 743, 744, 745, 746
Load Humidity
Series 752, 753, 766, 767,
768, 770
High Temp Exposure
Series 752, 753, 766, 767, 768, 770
Series 742, 743, 744, 745, 746
Load Life
Series 752, 753, 766, 767, 768
Series 770
Series 742, 743, 744, 745, 746
Resistance to Solder Heat
Series 752, 753, 766, 767, 768
Series 770
Series 742, 743, 744, 745, 746
Resistance to Leach
Series 742, 743, 744, 745, 746, 752, 753
Mechanical Shock
Series 752, 753, 766, 767,
768, 770
Vibration
Series 752, 753, 766, 767
768, 770
0.5%
0.25%
1.0%
0.5%
0.5%
0.25%
2.0%
2.0%
2.0%
2.0%
0.5%
2.0%
1.0%
107
B
5 cycles, -65°C to +125°C
5 cycles, -55°C to +125°C
2 1/2 x rated voltage, 5 sec (100V Max.)
2 1/2 x rated voltage, 5 sec (50V Max.)
2 1/2 x rated voltage, 5 sec. (100V Max.)
2 1/2 x rated voltage, 5 sec (100V Max.)
2 1/2 x rated voltage, 5 sec. (200V Max.)
2 1/2 x rated voltage, 5 sec (400V Max.)
2 1/2 x rated voltage, 5 sec (50V Max.)
Terminal Strength
Series 766, 767, 768
Series 770
Low Temp Storage
Series 752, 753, 766, 767
768, 770
Low Temp Operation
Series 752, 753, 766, 767
768, 770
Flammability (UL)
Series 752, 753, 766, 767
768, 770
Non-Fungus per MIL-STD 810C
Resistance to Solvents
Solderability
0.25%
0.9 Kg. pull, 30 sec., two 45° bends
2.0 Kg. pull, 30 sec., three 45° bends
24 hours @ -65°C, no load
0.25%
0.25%
45 min @ -65°C, full load
N/A
Series 752, 766, 767, 768, 770
Series All
Series All
94V-0
106
240 hours, 0.1 rated load, -10°C to +65°C,
90% RH
Isopropyl alcohol
RMA Flux, 230°C, 5 Seconds dip, 95% coverage
1000 hours, 0.1 rated load, 70°C, 85-92% RH
1.0%
1.0%
1.0%
1.0%
0.25%
0.25%
1.0%
N/A
0.25%
213
I
108
F
D
240 hours, no load, @ 125°C
1000 hours, no load, @ 125°C
2000 hours @ 70°C, rated load
1000 hours @70°C, rated load
1000 hours @ 70°C, rated load
30 seconds @ 218°C, dwell
3 second dwell @ 350°C solder
10 second dwell @ 260°C solder
120 seconds @ 260°C solder
100g, 1 msec., 3 shocks each plane
A
B
0.25%
204
D
20g, 10-2000Hz, 4 hours/plane
CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com EPSB
s
s
s
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CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com EPSC
s
s
s
s
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38
39
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