Standard Resistor Values & EIA Code
Ohms
0
10
12
15
18
22
27
33
39
47
51
56
Code
000X
100
120
150
180
220
270
330
390
470
510
560
Ohms
68
75
82
100
110
120
150
180
220
270
330
390
Code
680
750
820
101
111
121
151
181
221
271
331
391
Ohms
470
510
560
680
820
1K
1.2K
1.5K
1.8K
2.0K
2.2K
2.7K
Code
471
511
561
681
821
102
122
152
182
202
222
272
Ohms
3.3K
3.9K
4.7K
5.1K
5.6K
6.8K
8.2K
10K
12K
15K
18K
22K
Code
332
392
472
512
562
682
822
103
123
153
183
223
Ohms
27K
33K
39K
47K
51K
56K
68K
82K
100K
120K
150K
180K
Code
273
333
393
473
513
563
683
823
104
124
154
184
Ohms
220K
270K
330K
390K
470K
510K
560K
680K
820K
1M
Code
224
274
334
394
474
514
564
684
824
105
Dual Terminator Resistor Values
The Series 767 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 that equal the same equivalent resistance. Reference Thevenin Equivalent Resistance
Chart
R
eq
=R
1
R
2
/(R
1
+ R
2
)
Example:
767145191A
R1=330 Ohms
R2=470 Ohms
Req=194 Ohms
Pin N/2 is common to R2 and Pin N is common to R1 on CTS Series 767.
Thevenin Equivalent Resistance Chart
R1
Ohms
25
30
30
33
36
43
68
75
80
81
81
100
100
100
106
50
50
620
4.7K
620
620
189
620
220
130
2.2K
200
430
150
169
R2
Thevenin
Equivalent
17 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
CTS
Code
150A
190A
290A
330A
340A
400A
500B
670A
590A
500A
780A
670B
810A
600A
650A
R1
Ohms
110
118
120
120
120
150
160
160
160
162
180
180
180
180
180
R2
220
178
200
180
120
150
260
240
270
260
300
470
390
270
220
Thevenin
Equivalent
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
CTS
Code
730A
710A
750B
720A
600B
750A
990A
960A
101D
101B
111B
131C
121A
111A
101A
(Cont.)
Page 3 of 5
January 2008
CTS Electronic Components
Leaded Surface Mount 767 Series
www.ctscorp.com
CTS [ CTS CORPORATION ]
