0.05

0.002

0.05
0.002

PART NO. CTS DATE

"A"

0.12

0.005

2.03

0.080

0.12

0.005

2.41

0.095

PAD #1 MARK

SEATING
PLANE

1.27 TYP.
0.050

1.52 Ref
0.060

0.12

0.005

0.64
0.025

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.

NOTE: No dashes or spaces to appear in part number.

Example: 752163101GTR

See page 33 for part marking information.

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

752B

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

752B

Input/Outputs "A" Dim.

SRT

in.

11.81 ±0.12 0.465 ±0.005

13.08 ±0.12

0.515 ±0.005

14.35 ±0.12

0.565 ±0.005

16.89 ±0.12

0.665 ±0.005

DRT

in.

11.81 ±0.12 0.465 ±0.005

13.08 ±0.12

0.515 ±0.005

14.35 ±0.12

0.565 ±0.005

16.89 ±0.12

0.665 ±0.005

0.05

0.002

0.05
0.002

PART NO. CTS DATE

"A"

1.27 TYP.
0.050

1.52 Ref

0.060

0.12

0.005

0.64
0.025

0.12

0.005

2.03
0.080

0.12

0.005

2.41
0.095

SEATING
PLANE

PAD #1 MARK

PAD #1

In-Line Surface Mount Resistor Products
· High density packaging
· Low profile
· Input/outputs available:

Dual Row Terminations - 16, 18, 20, 24
Single Row Terminations - 8, 9, 10, 12

· Nickel barrier solder-coated pads
· Designed for visual inspection of solder joints
· Designed for board cleaning
· 24mm tape & reel packaging
· Application specific circuits are available
· Compatible with all solder processes

Wave, IR reflow, Vapor phase reflow

Resistance Range:

Standard: 10

to 1 Meg

Resistance Tolerance:

Standard: ±2% or 0.5

(whichever is greater)

Special: ±1% or 0.3

(whichever is greater)

Maximum Operating Voltage:

25V not to exceed rated power

Temperature Coefficient:

Standard: ±200PPM/°C
Special: ±100PPM/°C
(33

to 1 Meg

)

Dielectric Strength:

100 VAC

Operating Temperature Range:

-55°C to +125°C

Power Rating (Total Network Power):
Number of input/outputs (watts)
SRT

9 10

DRT

@25°C 1.2

1.3

1.4

1.7

1.4 1.5 1.6 2.0

@70°C 0.8 0.85 0.9

1.1

0.9 0.95 1.0 1.3

Maximum Resistor Power:
(Not to Exceed Total Network Power)

Bussed & Dual

Isolated

Terminator Schematic

Schematic

@25°C 0.12w

0.24w

@70°C 0.08w

0.16w

S u r f a c e M o u n t S e r i e s 7 5 2

Single Row Termination (SRT)

Dual Row Termination (DRT)

Dimensions are mm/in.

752 16 3 101 G TR

Series 752

Resistor Code

See Page 32
Schematic 5

Tolerance
Schematic Schematic
1 & 3

J= ±5%

All 5 schematic

G= ±2%

products are

F= ±1%

2% tolerance.

D= ±1/2%

(not marked)

Schematic 1 Bussed

3 Isolated
5 Dual Terminator

Packaging - TR - Tape & Reel
B - Bulk (see page 36)

Input/Outputs
SRT

DRT

12 24

Bussed DRT Schematic 1

N - 1

N/2 + 1

N/2

Isolated DRT Schematic 3

N - 1

N/2 + 1

N/2

Bussed SRT Schematic 1

Dual Terminator SRT Schematic 5

Isolated SRT Schematic 3

Not Available
in 9 Pad

Not Available
in 18 Pad

Not Available
in DRT

(Ohms) EIA Code

3300

332

3900 392
4700

472

5100

512

5600

562

6800

682

8200

822

10000

103

11000

113

12000

123

15000

153

18000

183

20000

203

22000

223

27000

273

33000

333

39000

393

47000

473

56000

563

68000

683

82000

823

100000

104

110000

114

120000

124

150000

154

180000

184

200000

204

220000

224

270000

274

330000

334

390000

394

470000

474

560000

564

680000

684

820000

824

1000000

105

(Ohms) EIA Code

10 100
12

120

150

180

220

270

330

390

470

510

560

680

820

100

101

110

111

120

121

150

151

180

181

200

201

220

221

270

271

330

331

390

391

470

471

510

511

560

561

680

681

820

821

1000

102

1100

112

1200

122

1500

152

1800

182

2000

202

2200

222

2700

272

Values and CTS
Code listed on
page 32

The TCE of the mounting surface will
affect the long term reliability of the
solder joint between the Series 752 and
the mounting surface. Application
requirements vary and each user must
determine whether the Series 752 is
appropriate for the application. Thermal
shock data for solder joint fatigue is
available on request.

Application Notes pages 24-25

Power Derating

page 33

Land Patterns

pages 34-35

Packaging pages 36-37

Environmental
Performance
Specifications pages 38-39

How to Order
Series GTL & ECL Products

NOTE: No dashes or spaces to appear in part number.

Example: 75324G101GTR

See page 33 for part marking information.

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

75XB

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

75XB

ECL Standard Resistance Values

Thev

Code

130

500A

120

200

750B

162

260

100

101B

220

270

121

121B

180

390

123

121A

220

330

130

131A

330

390

180

181A

330

470

190

191A

R = Terminator Resistance Value/2

0.5nH

0.08pF

0.6nH

0.1pF

0.08pF

0.2nH

0.6nH

0.2nH

0.1pF

Series 752
Series 753

Resistor Code

3 digit EIA

Tolerance
J = ±5%
G = ±2% (standard)
F = ±1% or .5

Termination

GTL

ECL

# Pads

(GTL)

(ECL)

High Speed Digital Termination Networks
· Low inductance leadless construction
· Excellent high frequency response
· Very low crosstalk
· High power dissipation versus board space
· Spice models available for circuit simulation
· Solder-coated nickel barrier pads
· Tape & reel packaging per EIA 481
· Designed to work with standard automated

surface mount pick & place solder processes

Resistance Tolerance:

Standard ±2% or 0.5

(whichever is greater)

Special: ±1%

Temperature Coefficient (TCR):

Standard: ±200PPM/°C

Operating Temperature Range:

-55°C to +125°C

R18

R17 R16 R15

R14 R13 R12

R11 R10

R1 R2

R3 R4 R5

R6 R7 R8

Spice Equivalent Circuit

GTL Termination

ECL Termination

GTL Standard Resistance Values

Value

Code

Value

Code

390

100

101

470

110

111

500

120

121

510

150

151

560

180

181

620

220

221

680

270

271

750

330

331

820

Standard Product Offering

Termination

CTS

Rated Package

Resistor

Term.

Type

Series#

Power @25°C

Pitch

Lines

GTL (parallel)

753

0.82W

0.06W

0.025"

752

2.0W

0.08W

0.050"

ECL (Thevenin)

753

0.82W

0.06W

0.025"

752

2.0W

0.08W

0.050"

Apply

Spice

Measured

Spice

Measured

250mV

Result

1nS

28pS

Apply P1
View P2

4.4mV

4.5mV

48mV

34mV

View P4

3.1mV

3.0mV

28mV

22mV

Apply P2
View P1

4.4mV

5.0mV

55mV

34mV

View P4

3.0mV

2.4mV

30mV

16mV

Apply P4
View P1

3.1mV

3.0mV

30mV

22mV

View P4

3.0mV

2.6mV

30mV

16mV

G T L & E C L T e r m i n a t o r s - S e r i e s 7 5 2 & 7 5 3

Testing based on TDR pulse using a Tektronix 11802 digitizing
scope. 28ps pulse applied, 1ns filter applied on 1ns measurement.
Terminator value tested = 50

See pages 16-19 for physical dimensions, power rating and
other 752 & 753 information.

See page 19 for available value codes

See page 32 for available
value & CTS codes

753

101

Packaging -
TR - Tape & Reel
B - Bulk
(see page 36)

Part

Series

No. of

Schematic

Resistor Value

Tolerance

Date Code

Pins/Pads

or Code

YRWK

742, 743, 744

745, 746

752

12 & 24 pad

3-digit

10 & 20 pad

3-digit

9 & 18 pad

3-digit

8 & 16 pad

3-digit

753

12 & 24 pad

2-digit

10 & 20 pad

2-digit

9 & 18 pad

8 & 16 pad

766, 767, 768

4-digit

770

4-digit

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

DTCB

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

PDC/PMC

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.

The Series 770 part number includes the actual values of the
resistors in the dual terminator. For example:

770105180/470

R1=180

R2=470

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=220

R2=330

Req=132

767145191A

R1=330

R2=470

Req=194

768205131C

R1=180

R2=470

Req=130

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 significanceassigned in sequential order.

Part Marking

The following chart indicates the characters marked on parts with standard marking.

D u a l T e r m i n a t o r

N/2 +1

N/2

Degrees Centigrade

Percent Rated Power

20%

40%

60%

80%

100%

120%

140%

160%

100

110

120

Dual Terminator Resistor Values & Codes

Power Derating Curve for Resistor Networks

Thevenin CTS

Ohms

Equivalent Code

50 15

ohm

150A

19 ohm

190A

620

29 ohm

290A

4.7K

33 ohm

330A

620

34 ohm

340A

620

40 ohm

400A

189

50 ohm

500B

620

67 ohm

670A

220

59 ohm

590A

130

50 ohm

500A

2.2K

78 ohm

780A

100

200

67 ohm

670B

100

430

81 ohm

810A

100

150

60 ohm

600A

106

169

65 ohm

650A

110

220

73 ohm

730A

118

178

71 ohm

710A

120

200

75 ohm

750B

120

180

72 ohm

720A

120

60 ohm

600B

150

75 ohm

750A

160

260

99 ohm

990A

160

240

96 ohm

960A

160

270

100 ohm

101D

162

260

100 ohm

101B

180

300

113 ohm

111B

180

470

130 ohm

131C

180

390

123 ohm

121A

180

270

108 ohm

111A

180

220

99 ohm

101A

200 1.5K

176 ohm

171D

220

330

132 ohm

131A

220

270

121 ohm

121B

220

110 ohm

111D

240

170

100 ohm

101C

240

620

173 ohm

171C

250

125 ohm

131B

270

470

171 ohm

171A

Thevenin CTS

Ohms

Equivalent Code

270

180

108 ohm

111C

271

131

88 ohm

880A

330

470

194 ohm

191A

330

680

222 ohm

221A

330

390

179 ohm

181A

330

220

132 ohm

131D

330

165 ohm

171B

360

720

240 ohm

241B

360

600

225 ohm

231A

390

620

239 ohm

241A

470

320 ohm

321A

470

680

278 ohm

281A

470

940

313 ohm

311A

500

250 ohm

251A

560

910

347 ohm

351A

560

359 ohm

361A

680

405 ohm

401A

750

375 ohm

381A

750 2.3K

566 ohm

571A

3.3K

767 ohm

771A

667 ohm

671A

1.1K 2.2K

733 ohm

731A

1.2K 1.2K

600 ohm

601A

1.5K 1.5K

750 ohm

751A

1.5K 3.3K

1031 ohm

102A

1000 ohm

102B

2.2K 5.6K

1579 ohm

162A

2.2K 4.4K

1467 ohm

152A

2.2K 3.3K

1320 ohm

132A

6.2K

2022 ohm

202A

1200 ohm

122A

3.3K 4.7K

1939 ohm

192A

3.9K 3.3K

1788 ohm

182A

4.7K 22K

3873 ohm

392A

2500 ohm

252A

6.8K 22K

5194 ohm

522A

10K

51K

8361 ohm

842A

50K 100K

33,333 ohm

333A

DRT

Solder Paste Stencil Opening

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

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

SMLPB

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

SMLPB

SRT

Solder Paste Stencil Opening

4 mil 752 2.40

0.76

0.38

0.095 0.030

0.015

6 mil 752 1.90

0.63

0.33

0.075 0.025

0.013

742

1.80

0.80

0.50

0.90

0.071

0.032

0.020

0.035

743

1.90

1.27

0.80

1.20

0.075

0.050

0.032

0.047

744

3.00

1.27

0.80

1.30

0.118

0.050

0.032

0.051

745

3.00

1.27

0.80

1.30

0.118

0.050

0.032

0.051

746

1.52

0.64

0.35

0.80

0.060

0.025

0.014

0.032

Dimensions mm/inch

Series

S u r f a c e M o u n t L a n d P a t t e r n s

Concave and Convex Chip Resistor Arrays 742-746

Surface Mount Series 752

Surface Mount Series 753

Surface Mount Series 766, 767 & 768

"D"

"C"

"B"

"A"

"C"

2.03

0.080

TYP.

1.27

0.050

TYP.

0.63

0.025

TYP.

"D"

"B"

"A"

Lead

Count

766-8P

3.60

5.60

7.60

3.81

0.140

0.220

0.300

0.150

766-14P

3.60

5.60

7.60

0.140

0.220

0.300

766-16P

3.60

5.60

7.60

8.90

0.140

0.220

0.300

0.350

767-14

5.34

7.37

9.40

7.60

0.210

0.290

0.370

0.300

767-16

5.34

7.37

9.40

8.90

0.210

0.290

0.370

0.350

768-14

5.34

7.37

9.40

7.60

0.210

0.290

0.370

0.300

768-16

5.34

7.37

9.40

8.90

0.210

0.290

0.370

0.350

768-20

5.34

7.37

9.40

11.43

0.210

0.290

0.370

0.450

Concave/Convex

Stencil Opening

SRT

Solder Paste Stencil Opening

4 mil 753 2.75

0.30

0.15

0.108 0.012

0.006

6 mil 753 1.72

0.30

0.15

0.068 0.012

0.006

Stencil Opening

DRT

Solder Paste Stencil Opening

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

Stencil Opening

Land Patterns

No. of

"H" Dim

Pads

In.

0.175

4.44

0.200

5.08

0.225

5.72

0.275

6.99

0.175

4.44

0.200

5.08

0.225

5.72

0.275

6.99

"B"

"C"

"A"

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.

"F"

"H"

SINGLE ROW
TERMINATION

"B"

"C"

"A"

"F"

DUAL ROW
TERMINATION

"E"

"D"

Dim. In.

mm.

0.120

3.05

0.025

0.64

0.017

0.43

0.050

1.27

0.020

0.51

0.035

0.89

Land Patterns

No. of

"H" Dim

Pads

In.

0.350

8.89

0.400

10.16

0.450

11.43

0.550

13.97

0.350

8.89

0.400

10.16

0.450

11.43

0.550

13.97

Dim. In.

mm.

0.125

3.18

0.050

1.27

0.030

0.76

0.050

1.27

0.025

0.64

0.050

1.27

Solder Paste
Stencil Opening

"K"

"S"

Radius Q

"K"

Radius Q

NOTE:

Land Patterns for Concave and
Convex termination can be the same.

Series 752 & 753 Stencil Openings

Series 752 & 753 Land Patterns

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

SPB

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

SPB

Tape & Reel

742C043 742C083

742C163 743C043

743C083

744C043

744C083

745C101 745X101 746X101

742X083

745C102 745X102

Parts/Reel

5000

4000

5000

Pitch

4mm

8mm

4mm

Carrier Width

8mm

12mm

8mm

12mm

8mm

12mm

8mm

Material

paper

plastic

paper

Reel diameter

Tape & Reel

TR1

TR2

Parts/reel

5000 STD

2000 STD

1000 min.

Tape width

24mm

Tape pitch

4mm

12mm

Reel diameter

S t a n d a r d P a c k a g i n g

Series 770

Bulk Pack

All Products 250 Parts/Bag

Slide Pack

Tube Length = 457mm/18 in

Series 752

Series 766/767/768

Network

8 Pin

14 Pin

16 Pin

14 Pin

16 Pin

20 Pin

Package

766

767/768

768

Tape & Reel

Tape width

12mm

16mm

24mm

Tape pitch

8mm

12mm

Reel diameter

#parts/reel*

3,000

2,000

Reel diameter

#parts/reel*

800

Slide Packs

Tube length

#parts/slide pac*

*nominal full reels or slide packs

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.

Tape & Reel Specifications per EIA-481-2

Carrier Tape:

Resistivity <1 X105 ohm/sq.

Cover Tape:

Antistatic .004 max.

Reels:

Molded plastic

Cover Tape Pull:

30 To 130 gr.

Slide Pacs:

Antistatic

DIRECTION OF FEED

PART NO.

CTS DATE

DIRECTION OF FEED

PART NO. CTS DATE

Tape & Reel

TR1

TR2

Parts/reel

5000 STD

2000 STD

1000 min.

Tape width

16mm

Tape pitch

4mm

8mm

Reel diameter

Series 753

DIRECTION OF FEED

PART #

Series 752, 753, 766, 767, 768

Pins

4 5 6 7

Qty/Tube 50

Series 742,743,744,745, 746

Bulk Pack 250 parts/bag

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

EPSB

CTS Resistor/Electrocomponents

406 Parr Road

Berne, IN

46711

fax: (219) 589-3243

www.ctscorp.com

EPSC

E n v i r o n m e n t a l P e r f o r m a n c e S p e c i f i c a t i o n s

Mil. Std.

Test

Max.

202 Method

Cond.

Test Description

Thermal Cycling

Series 752, 753, 766, 770

0.5%

107

5 cycles, -65°C to +125°C

Series 767, 768

0.25%

Series 742, 743, 744, 745, 746

1.0%

5 cycles, -55°C to +125°C

Short Time Overload

Series 766, 770

0.5%

2 1/2 x rated voltage, 5 sec (100V Max.)

Series 752, 753

0.5%

2 1/2 x rated voltage, 5 sec (50V Max.)

Series 767, 768

0.25%

2 1/2 x rated voltage, 5 sec. (100V Max.)

Series 742, 745

2.0%

2 1/2 x rated voltage, 5 sec (100V Max.)

Series 743

2.0%

2 1/2 x rated voltage, 5 sec. (200V Max.)

Series 744

2.0%

2 1/2 x rated voltage, 5 sec (400V Max.)

Series 746

2.0%

2 1/2 x rated voltage, 5 sec (50V Max.)

Moisture Resistance

Series 752, 753, 766, 767,

0.5%

106

240 hours, 0.1 rated load, -10°C to +65°C,

768, 770

90% RH

Series 742, 743, 744, 745, 746

2.0%

Load Humidity

Series 752, 753, 766, 767,

1.0%

1000 hours, 0.1 rated load, 70°C, 85-92% RH

768, 770

High Temp Exposure

Series 752, 753, 766, 767, 768, 770

1.0%

240 hours, no load, @ 125°C

Series 742, 743, 744, 745, 746

1.0%

1000 hours, no load, @ 125°C

Load Life

Series 752, 753, 766, 767, 768

1.0%

108

2000 hours @ 70°C, rated load

Series 770

1000 hours @70°C, rated load

Series 742, 743, 744, 745, 746

1.0%

1000 hours @ 70°C, rated load

Resistance to Solder Heat

Series 752, 753, 766, 767, 768

0.25%

30 seconds @ 218°C, dwell

Series 770

0.25%

3 second dwell @ 350°C solder

Series 742, 743, 744, 745, 746

1.0%

10 second dwell @ 260°C solder

Resistance to Leach

Series 742, 743, 744, 745, 746, 752, 753

N/A

120 seconds @ 260°C solder

Mechanical Shock

Series 752, 753, 766, 767,

0.25%

213

100g, 1 msec., 3 shocks each plane

768, 770

Vibration

Series 752, 753, 766, 767

0.25%

204

20g, 10-2000Hz, 4 hours/plane

768, 770

Mil. Std.

Test

Max.

202 Method

Cond.

Test Description

Terminal Strength

Series 766, 767, 768

0.9 Kg. pull, 30 sec., two 45° bends

Series 770

0.25%

2.0 Kg. pull, 30 sec., three 45° bends

Low Temp Storage

Series 752, 753, 766, 767

0.25%

24 hours @ -65°C, no load

768, 770

Low Temp Operation

Series 752, 753, 766, 767

0.25%

45 min @ -65°C, full load

768, 770

Flammability (UL)

Series 752, 753, 766, 767

N/A

94V-0

768, 770

Non-Fungus per MIL-STD 810C

Series 752, 766, 767, 768, 770

Resistance to Solvents

Series All

Isopropyl alcohol

Solderability

Series All

RMA Flux, 230°C, 5 Seconds dip, 95% coverage

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