Leaded Surface Mount Series 768
Technical
Data
Features
•
•
•
•
•
•
•
•
•
Medium body design
Low profile---board to network clearance of
0.005”/0.010”
Solid ceramic construction
No internal dendrite growth
Conforms to EIA PDP-100 SOGN-0002
Packaged in Tape & Reel or Slide Packs
Application specific circuits are available
Compatible with all solder processes
Wave, IR Reflow, Vapor Phase Reflow
RoHS compliant available
Resistance Tolerance:
Standard: ±2% or 0.5Ω (whichever is greater)
Special: ±0.25% or 0.3Ω (whichever is greater)
Resistance Range:
Standard: 10Ω to 1 MegΩ
Operating Temperature Range:
-55°C to +125°C
Temperature Coefficient:
Standard: 100Ω to 1 MegΩ
100PPM/°C typical
10Ω to 99Ω
±200PPM/°C typical
Dielectric Strength:
1
00 VAC
Maximum Operating Voltage:
50V not to exceed rated power
Power Rating (Total Network Power):
14 Pin
2.0w
1.3w
16 Pin
2.3w
1.5w
20 Pin
3.0w
2.0w
@25°C
@70°C
Maximum Resistor Power:
(Not to Exceed Total Network Power)
Schematic
@25°C
@70°C
1
0.15w
0.10w
3
0.30w
0.20w
5
0.15w
0.10w
7
0.15w
0.10w
1 of 5
December 2005
CTS Electronic Components
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Types of Circuits
Bussed (Schematic 1)
Isolated (Schematic 3)
Dual Terminator (Schematic 5)
R/2R Ladder (Schematic 7)
No. of Pins
14
16
20
"A" Dimension
mm
9.91 ±0.25
11.18 ±0.25
13.70 ±0.25
Notes
in.
0.390 ±0.010
0.440 ±0.010
0.540 ±0.010
mm 0.10 MAX
in. 0.004
mm ±0.25
in. ±0.010
1. Lead COPLANARITY
2. General Tolerances
3. mm & in. DIMENSIONS ARE NOT EQUIVALENT
Land Patterns
LEAD COUNT
14P
16P
20P
mm
in.
mm
in.
mm
in.
A
5.34
0.21
5.34
0.21
5.34
0.21
B
7.37
0.29
7.37
0.29
7.37
0.29
C
9.40
0.37
9.40
0.37
9.40
0.37
D
7.60
0.30
7.60
0.35
7.60
0.45
Page 2 of 5
December 2005
CTS Electronic Components
www.ctscorp.com
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
2.2K
2.7K
3.3K
Code
471
511
561
681
821
102
122
152
182
222
272
332
Ohms
3.9K
4.7K
5.1K
5.6K
6.8K
8.2K
10K
12K
15K
18K
22K
27K
Code
392
472
512
562
682
822
103
123
153
183
223
273
Ohms
33K
39K
47K
51K
56K
68K
82K
100K
120K
150K
180K
220K
Code
333
393
473
513
563
683
823
104
124
154
184
224
Ohms
270K
330K
390K
470K
510K
560K
680K
820K
1M
Code
274
334
394
474
514
564
684
824
105
Dual Terminator Resistor Values
The Series 766, 767, 768 part numbers include 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 chart.
R
eq
=R
1
R
2
/(R
1
+ R
2
)
Examples:
766165131A
767145191A
768205131C
R1=220 Ohms
R1=330 Ohms
R1=180 Ohms
R2=330 Ohms
R2=470 Ohms
R2=470 Ohms
Req=132 Ohms
Req=194 Ohms
Req=130 Ohms
Pin N/2 is common to R2 and Pin #N is common to R1 on CTS Series 766, 767 and 768.
R1
Ohms
25
30
30
33
36
43
68
75
80
R2
50
50
620
4.7K
620
620
189
620
220
Thevenin
Equivalent
17 ohm
19 ohm
29 ohm
33 ohm
34 ohm
40 ohm
50 ohm
67 ohm
59 ohm
CTS
Code
150A
190A
290A
330A
340A
400A
500B
670A
590A
R1
Ohms
81
81
100
100
100
106
110
118
120
R2
130
2.2K
200
430
150
169
220
178
200
Thevenin
Equivalent
50 ohm
78 ohm
67 ohm
81 ohm
60 ohm
65 ohm
73 ohm
71 ohm
75 ohm
CTS
Code
500A
780A
670B
810A
600A
650A
730A
710A
750B
Page 3 of 5
December 2005
CTS Electronic Components
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R1
Ohms
120
120
150
160
160
160
162
180
180
180
180
180
200
220
220
220
240
240
250
270
270
271
330
330
330
330
330
360
360
1.
All tolerances +/-2%.
R2
180
120
150
260
240
270
260
300
470
390
270
220
1.5K
330
270
220
170
620
250
470
180
131
470
680
390
220
330
720
600
Thevenin
Equivalent
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
108 ohm
88 ohm
194 ohm
222 ohm
179 ohm
132 ohm
165 ohm
240 ohm
225 ohm
CTS
Code
720A
600B
750A
990A
960A
101D
101B
111B
131C
121A
111A
101A
171D
131A
121B
111D
101C
171C
131B
171A
111C
880A
191A
221A
181A
131D
171B
241B
231A
R1
Ohms
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
R2
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
Equivalent
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
CTS
Code
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
2. Other values available on request.
3. Suffix letter has no significance - assigned in sequential order.
How to Order
768
Part Number Series
Number of Pins
Schematic
1
3
5
7
Bussed
Isolated
Dual Terminator
Ladder
14
1
103
G
P
Lead-Free (RoHS Compliant)
Insert “P” for Lead-Free;
otherwise blank
Tolerance
Resistor Code
Refer to the EIA Code
Noted on Page 3.
NOTE: No dashes or spaces to appear in part number.
Example: 768141103GP
Page 4 of 5
Schematic
Schematic
1&3
5
J = ±5%
All 5 schematic
G = ±2% (Std.) products are
F = ±1%
2% tolerance.
D = ±1/2%
(not marked)
Schematic
7
F= ±1LSB
D= ±1/2LSB
(LSB=Least
Significant Bit)
December 2005
CTS Electronic Components
www.ctscorp.com
Packaging
Tape & Reel
Tape width
Tape pitch
Reel diameter
#parts/reel
Slide Packs
Tube length
#parts/slide pac
14P
24mm
12mm
13"
2000
20"
48
16P
24mm
12mm
13"
2000
20"
43
20P
24mm
12mm
13"
2000
20"
35
Environmental Performance Specifications
Max. %
Mil. Std.
Test Cond.
Test Description
Delta R 202 Method
0.25%
107
B
5 cycles, -65°C to +125°C
0.25%
2 1/2 x rated voltage, 5 sec (100V Max.)
0.5%
106
240 hours, 0.1 rated load, -10°C to +65°C, 90% RH
1.0%
1000 hours, 0.1 rated load, 70°C, 85-92% RH
1.0%
240 hours, no load, @ 125°C
1.0%
108
F
2000 hours @ 70°C rated load
0.25%
30 seconds @ 218°C, dwell
0.25%
213
I
100g, 1 msec., 3 shocks each plane
0.25%
204
D
20g, 10-2000Hz, 4 hours/plane
0.25%
0.9 Kg. Pull, 30 sec., two 45° bends
0.25%
24 hours @ -65°C, no load
0.25%
45 min @ -65°C, full load
N/A
94V-0
Test
Thermal Cycling
Short Time Overload
Moisture Resistance
Load Humidity
High Temp Exposure
Load Life
Resistance to Solder Heat
Mechanical Shock
Vibration
Terminal Strength
Low Temp Storage
Low Temp Operation
Flammability
Non-Fungus per MIL-STD
810C
Resistance to Solvents
Solderability
Isopropyl alcohol
RMA Flux, 230°C, 5 seconds dip, 95% coverage
Page 5 of 5
December 2005
CTS Electronic Components
www.ctscorp.com
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