1 of 6 november 2006 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 version available leadless surface mount series 753 technical data resistance tolerance : resistance range : standard: 2% or 0.5? (whichever is greater) standard: 10 ? to 1 meg? special: 1% or 0.3? (whichever is greater) temperature coefficient : maximum operating voltage : standard: 200ppm/c 25v not to exceed rated power operating temperature range : -55c to + 125c power rating (total network power) : number of inputs/outputs (watts) srt 8 9 10 12 drt 16 18 20 24 @25c 0.6 0.64 0.68 0. 82 0.6 0.64 0.68 0.82 @70c 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 @25c 0.06w 0.12w @70c 0.04w 0.08w
page 2 of 6 november 2006 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. r eq =r 1 r 2 /(r 1 + r 2 ) 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 november 2006 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 sequen tial order. page 4 of 6 november 2006 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 november 2006 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. insert ?p?; otherwise leave blank. 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 november 2006 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 p w 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 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 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 dual row termination sin g le row termination
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