1 of 6 January 2007
CTS Electronic Components www.ctscorp.com
Features
• High Density Packaging
• Low Profile
• Inputs/Outputs Available:
Single Row Terminations (SRT) – 8, 9, 10, 12
Dual Row Terminations (DRT) – 16, 18, 20, 24
• Nickel Barrier Solder-Coated Pads
• Designed For Visual Inspection of Solder Joints
• Designed For Board Cleaning
• Application Specific Circuits Are Available
• Compatible With Reflow Solder Process
• RoHS Compliant
Leadless Surface Mount Series 753
Technical
Data
Resistance Tolerance: Resistance Range:
Standard: ±2% or 0.5Ω (whichever is greater) Standard: 10Ω to 1 MegΩ
Special: ±1% or 0.3Ω (whichever is greater)
Temperature Coefficient: Maximum Operating Voltage:
Standard: ±200PPM/°C 25V not to exceed rated power
Operating Temperature Range:
-55°C to + 125°C
Power Rating (Total Network Power):
Number of inputs/outputs (watts)
SRT 8 9 10 12
DRT 16 18 20 24
@25°C 0.6 0.64 0.68 0.82 0.6 0.64 0.68 0.82
@70°C 0.4 0.43 0.45 0.55 0.4 0.43 0.45 0.55
Maximum Resistor Power:
(Not to Exceed Total Network Power)
Bussed & Dual
Terminator
Schematic Isolated
Schematic
@25°C 0.06w 0.12w
@70°C 0.04w 0.08w
Page 2 of 6 January 2007
CTS Electronic Components www.ctscorp.com
"A" Dimension
Terminations mm
±0.12 In.
±0.005
8 6.22 0.245
9 6.86 0.27
10 7.49 0.295
12 8.76 0.345
16 6.22 0.245
18 6.86 0.27
20 7.49 0.295
24 8.76 0.345
Dim. mm In.
B 2.41 ±0.12 0.095 ±0.005
C 2.03 ±0.12 0.080 ±0.005
D 0.64 ±0.12 0.025 ±0.005
E 0.71 ±0.12 0.028 ±0.005
F 0.33 ±0.08 0.013 ±0.003
G 0.08 ±0.05 0.003 ±0.002
H 0.89 Ref. 0.035 Ref.
Types of Circuits
Bussed SRT Schematic 1
Bussed DRT Schematic 1
Isolated SRT Schematic 3
(Not Available in 9 Pad)
Isolated DRT Schematic 3
(Not Available in 18 Pad)
Dual Terminator SRT Schematic 5
(Not Available in DRT)
Dual Terminator Overview
Standard CTS Dual Terminator products contain (2N-2) resistors of two different values with each resistor
value connected to a common buss. The 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 chart.
Req=R1R2/(R1 + R2)
Examples:
753095131A R1=220 Ohms R2=330 Ohms Req=132 Ohms
753095191A R1=330 Ohms R2=470 Ohms Req=194 Ohms
753095131C R1=180 Ohms R2=470 Ohms Req=130 Ohms
Pin #1 is common to R2 and Pin N is common to R.
Page 3 of 6 January 2007
CTS Electronic Components www.ctscorp.com
Dual Terminator Resistor Values
R1 R2 R1 R2
Ohms Thevenin
Equivalent CTS
Code Ohms Thevenin
Equivalent CTS
Code
25 50 17 ohm 150A 270 180 108 ohm 111C
30 50 19 ohm 190A 271 131 88 ohm 880A
30 620 29 ohm 290A 330 470 194 ohm 191A
33 4.7K 33 ohm 330A 330 680 222 ohm 221A
36 620 34 ohm 340A 330 390 179 ohm 181A
43 620 40 ohm 400A 330 220 132 ohm 131D
68 189 50 ohm 500B 330 330 165 ohm 171B
75 620 67 ohm 670A 360 720 240 ohm 241B
80 220 59 ohm 590A 360 600 225 ohm 231A
81 130 50 ohm 500A 390 620 239 ohm 241A
81 2.2K 78 ohm 780A 470 1K 320 ohm 321A
100 200 67 ohm 670B 470 680 278 ohm 281A
100 430 81 ohm 810A 470 940 313 ohm 311A
100 150 60 ohm 600A 500 500 250 ohm 251A
106 169 65 ohm 650A 560 910 347 ohm 351A
110 220 73 ohm 730A 560 1K 359 ohm 361A
118 178 71 ohm 710A 680 1K 405 ohm 401A
120 200 75 ohm 750B 750 750 375 ohm 381A
120 180 72 ohm 720A 750 2.3K 566 ohm 571A
120 120 60 ohm 600B 1K 3.3K 767 ohm 771A
150 150 75 ohm 750A 1K 2K 667 ohm 671A
160 260 99 ohm 990A 1.1K 2.2K 733 ohm 731A
160 240 96 ohm 960A 1.2K 1.2K 600 ohm 601A
160 270 100 ohm 101D 1.5K 1.5K 750 ohm 751A
162 260 100 ohm 101B 1.5K 3.3K 1031 ohm 102A
180 300 113 ohm 111B 2K 2K 1000 ohm 102B
180 470 130 ohm 131C 2.2K 5.6K 1579 ohm 162A
180 390 123 ohm 121A 2.2K 4.4K 1467 ohm 152A
180 270 108 ohm 111A 2.2K 3.3K 1320 ohm 132A
180 220 99 ohm 101A 3K 6.2K 2022 ohm 202A
200 1.5K 176 ohm 171D 3K 2K 1200 ohm 122A
220 330 132 ohm 131A 3.3K 4.7K 1939 ohm 192A
220 270 121 ohm 121B 3.9K 3.3K 1788 ohm 182A
220 220 110 ohm 111D 4.7K 22K 3873 ohm 392A
240 170 100 ohm 101C 5K 5K 2500 ohm 252A
240 620 173 ohm 171C 6.8K 22K 5194 ohm 522A
250 250 125 ohm 131B 10K 51K 8361 ohm 842A
270 470 171 ohm 171A 50K 100K 33,333 ohm 333A
1. All tolerances +/-2%. 2. Other values available on request. 3. Suffix letter has no significance - assigned in sequential order.
Page 4 of 6 January 2007
CTS Electronic Components www.ctscorp.com
Standard Resistor Values & EIA Code
Ohms Code Ohms Code Ohms Code Ohms Code Ohms Code Ohms Code
0 000X 68 680 470 471 3.9K 392 33K 333 270K 274
10 100 75 750 510 511 4.7K 472 39K 393 330K 334
12 120 82 820 560 561 5.1K 512 47K 473 390K 394
15 150 100 101 680 681 5.6K 562 51K 513 470K 474
18 180 110 111 820 821 6.8K 682 56K 563 510K 514
22 220 120 121 1K 102 8.2K 822 68K 683 560K 564
27 270 150 151 1.2K 122 10K 103 82K 823 680K 684
33 330 180 181 1.5K 152 12K 123 100K 104 820K 824
39 390 220 221 1.8K 182 15K 153 120K 124 1M 105
47 470 270 271 2.2K 222 18K 183 150K 154
51 510 330 331 2.7K 272 22K 223 180K 184
56 560 390 391 3.3K 332 27K 273 220K 224
How to Order
753 09 1 103 G P TR13
Page 5 of 6 January 2007
CTS Electronic Components www.ctscorp.com
Resistor Code
Refer to the EIA Code
Schematics
1 & 3: Page 5
5: Page 4
Part Number Series
SRT
08
09
10
12
DRT
16
18
20
24
Input/Outputs
Schematic
Packaging
“Blank” = Bulk Pack
(250 pcs.)
“TR7” = 7” Reel
“
TR13
”=
13
”
Reel
1 Bussed
3 Isolated
5 Dual Terminator RoHS Compliant
Tolerance
Schematic Schematic
1 & 3 5
J = ±5% Tolerance is 2%
G = ±2% (Standard) standard. It is not
F = ±1% necessary to add the
D = ±1/2% tolerance letter.
Plated “matte” Sn over
Ni on Ag thick film.
NOTE: No dashes or spaces to appear in part number.
Exam
p
le: 753091103GPTR13
Packaging
Tape & Reel
Reel Diameter 7" 13"
Tape Width 16mm
Tape Pitch 4mm
# of Parts/Reel 1000 5000
Recommended Land Patterns
Page 6 of 6 January 2007
CTS Electronic Components www.ctscorp.com
Recommended Land Pattern
mm/in. D P L W J S
1.27 0.64 3.05 0.43 0.89 0.51
753
0.05 0.025 0.12 0.017 0.035 0.02
LK
Radius Q
Sw PW
J
Keep out zone for stand offs.
Circuit board traces and solder mask
should be avoided in this area to allow
the stand of f to rest directly on the PCB.
SRT Solder Paste Stencil Opening
mm/in. K Sw A Q
2.75 0.3 0.15
4 mil 753
0.108 0.012 NA 0.006
1.72 0.3 0.15
6 mil 753
0.068 0.012 NA 0.006
DRT Solder Paste Stencil Opening
mm/in. K Sw A Q
0.51 0.3 1.32 0.15
4 mil 753
0.02 0.012 0.052 0.006
0.28 0.3 1.47 0.15
6 mil 753
0.011 0.012 0.058 0.006
Keep out zone for stand offs.
Circuit board traces and solder mask
should be avoided in this area to allow
the stand off to rest directly on the PCB.
S
D
J
Sw
P
L
K
A
W
Solder Paste
Stencil Opening
Radius Q
Dual Row Termination
Sin
g
le Row Termination
