SEATING
PLANE
0.05
±0.05
0.002
±0.002
Dimensions are mm/in.
Input/Outputs ”A” Dim.
1
N
1.52 Ref
0.060
SRT
mm
in.
Isolated DRT Schematic 3
N
N-1
N/2 + 1
.64
±0.12
.025
±0.005
8
9
10
12
DRT
1
2
N/2
mm
in.
11.81 ±0.12
13.08 ±0.12
14.35 ±0.12
16.89 ±0.12
11.81 ±0.12
13.08 ±0.12
14.35 ±0.12
16.89 ±0.12
0.465 ±0.005
0.515 ±0.005
0.565 ±0.005
0.665 ±0.005
0.465 ±0.005
0.515 ±0.005
0.565 ±0.005
0.665 ±0.005
Not Available
in 18 Pad
16
18
20
24
Isolated SRT Schematic 3
Not Available
in 9 Pad
1
N
DRT)
2.03
±0.12
0.080
±0.005
2.41
±0.12
0.095
±0.005
Dual Terminator SRT Schematic 5
R2
R2
R1
1
R1
R2
R1
N
SEATING
PLANE
0.05
0.002
±0.002
±0.05
Not Available
in DRT
Values and CTS
Code listed on
page 32
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
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
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
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
1.52 Ref
0.060
0.64
±0.12
0.025
±0.005
How to Order
Series 752 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.
752
Series 752
16
3
101
G
TR
ce will
of the
s 752 and
ion
er must
752 is
Thermal
ue is
Power Derating
Land Patterns
Packaging
Environmental
Performance
Specifications
page 33
pages 34-35
pages 36-37
pages 38-39
Application Notes pages 24-25
Input/Outputs
SRT
DRT
08
16
09
18
10
20
12
24
Schematic
Resistor Code
See Page 32
Schematic 5
Packaging - TR - Tape & Reel
B - Bulk (see page 36)
1 Bussed
3 Isolated
5 Dual Terminator
NOTE:
No dashes or spaces to appear in part number.
Example:
752163101GTR
Tolerance
Schematic
1&3
J= ±5%
G= ±2%
F= ±1%
D= ±1/2%
Schematic
5
All 5 schematic
products are
2% tolerance.
(not marked)
See page 33 for part marking information.
46711 fax: (219) 589-3243 www.ctscorp.com
752B
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R = Terminator Resistance Value/2
R5
R6
R7
R8
R9
R4
0.5nH
R
12
0.5nH
R
0.08pF
0.1pF
0.08pF
0.6nH
R
0.5nH
0.08pF
0.1pF
0.1pF
R
R
R
0.2nH
12
1
2
0.2nH
0.6nH
0.2nH
3
4
Apply
250mV
Spice
Result
1nS
Measured
Result
1nS
Spice
Result
28pS
Measured
Result
28pS
Apply P1
View P2
View P4
ECL Standard Resistance Values
4.4mV
3.1mV
4.5mV
3.0mV
48mV
28mV
34mV
22mV
ues
Testing based on TDR pulse using a Tektronix 11802 digitizing
scope. 28ps pulse applied, 1ns filter applied on 1ns measurement.
Terminator value tested = 50Ω.
Code
101
111
121
151
181
221
271
331
See page 32 for available
value & CTS codes
R1
81Ω
120Ω
162Ω
220Ω
180Ω
220Ω
330Ω
330Ω
R2
130Ω
200Ω
260Ω
270Ω
390Ω
330Ω
390Ω
470Ω
Thev
50Ω
75Ω
100Ω
121Ω
123Ω
130Ω
180Ω
190Ω
Code
500A
750B
101B
121B
121A
131A
181A
191A
Apply P2
View P1
View P4
4.4mV
3.0mV
5.0mV
2.4mV
55mV
30mV
34mV
16mV
Apply P4
View P1
View P4
3.1mV
3.0mV
3.0mV
2.6mV
30mV
30mV
22mV
16mV
How to Order
Series GTL & ECL Products
753
Series 752
Series 753
24
# Pads
24
(GTL)
12
(ECL)
G
101
G
TR
es
Resistor Code
3 digit EIA
dard Product Offering
Resistor
Power @25°C
Term.
Pitch
Term.
Lines
Packaging -
TR - Tape & Reel
B - Bulk
(see page 36)
Package
r @25°C
82W
0.08W
0.06W
0.08W
0.050”
0.025”
0.050”
0.06W
0.025”
18
.0W
Termination
G=
GTL
E=
ECL
82W
Tolerance
J = ±5%
G = ±2% (standard)
F = ±1% or .5Ω
8
NOTE:
No dashes or spaces to appear in part number.
Example:
75324G101GTR
.0W
See page 33 for part marking information.
46711 fax: (219) 589-3243 www.ctscorp.com 75XB
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CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com 75XB
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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
R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1
1
N/2
The Series 770 part number includes the actual values of the
resistors in the dual terminator. For example:
770105180/470
R1=180Ω R2=470Ω
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.
CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com DTCB
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0.50
0.020
0.90
0.035
No. of
Pads
“H” Dim
In.
mm
No. of
Pads
“H” Dim
In.
mm
0.80
0.032
0.80
0.032
0.80
0.032
0.35
0.014
6 mil 752 1.90 0.63
0.33
NA
0.075 0.025
0.013
0.80
0.032
4 mil 752 2.40 0.76
0.38
NA
0.095 0.030
0.015
16
18
20
24
0.350
0.400
0.450
0.550
1.30
0.051
K
Sw
S
Q
1.20
0.047
1.30
0.051
8.89
10.16
11.43
13.97
SRT
Solder Paste Stencil Opening
Stencil Opening
8
9
10
12
0.350
0.400
0.450
0.550
8.89
10.16
11.43
13.97
Stencil Opening
SRT
Solder Paste Stencil Opening
8
9
10
12
0.175
0.200
0.225
0.275
4.44
5.08
5.72
6.99
K
Sw
S
Q
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
16
18
20
24
0.175
0.200
0.225
0.275
4.44
5.08
5.72
6.99
cave and
n be the same.
Series 752 & 753 Land Patterns
DUAL ROW
TERMINATION
Series 752 & 753 Stencil Openings
C
D
"B"
"C"
"D"
Solder Paste
Stencil Opening
0
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
11.43
0.450
8.90
0.350
7.60
0.300
"A"
7.60
0.300
7.60
0.300
8.90
0.350
7.60
0.300
8.90
0.350
SINGLE ROW
TERMINATION
"A"
3.81
0.150
"K"
"E"
"S"
0
0
"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
0
0
Sw
"B"
"C"
"K"
0
0
0
Radius Q
"F"
"H"
46711 fax: (219) 589-3243 www.ctscorp.com SMLPB
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Reel diameter
13
"
13
"
DIRECTION OF FEED
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
4000
8mm
12mm
plastic
7
"
4000
4mm
12mm
plastic
7
"
4000
4mm
12mm
plastic
7
"
5000
4mm
8mm
paper
7
"
Series 766/767/768
Network
Package
8 Pin
766
12mm
8mm
13
"
3,000
7
"
800
14 Pin
766
16mm
8mm
13
"
3,000
7
"
800
16 Pin
766
16mm
8mm
13
"
3,000
7
"
800
14 Pin
767/768
24mm
12mm
13
"
2,000
16 Pin
20 Pin
767/768
768
Bulk Pack 250 parts/bag
Tape width
Tape pitch
Reel diameter
#parts/reel*
Reel diameter
#parts/reel*
Slide Packs
Tape & Reel
24mm
12mm
13
"
2,000
24mm
12mm
13
"
2,000
CTS DATE
PART NO.
Tube length
#parts/slide pac*
20
"
99ii
20
"
56ii
20
"
49ii
20
"
48ii
20
"
43ii
20
"
35ii
DIRECTION OF FEED
*nominal full reels or slide packs
46711 fax: (219) 589-3243 www.ctscorp.com SPB
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