sales and corporate of?ce 1717 chicago avenue riverside, california 92507-2364 phone: (951) 788-1700 fax: (951) 369-1151 applications engineering 17271 north umpqua hwy. roseburg, oregon 97470-9422 phone: (541) 496-0700 fax: (541) 496-0408 e-mail: caddock@caddock.com ? web: www.caddock.com for caddock distributors listed by country see caddock.com/contact/dist.html ? 2004 caddock electronics, inc. ca d k do c type tk low tc precision radial-lead resistors with the tetrinox ? resistance system solve the reliability problems related to other low tc precision resistor technologies. the robust construction of caddock's type tk resistors provides reliable operation even in harsh temperature cycling and/or power cycling environments. type tk low tc precision radial-lead film resistors provide a combination of performance advantages never before available in a resistive component: ? low temperature coef?cient - better than 5 ppm/c, 10 ppm/c, or 20 ppm/c over the entire temperature range from -55c to +125c! ? long-term absolute stability - typically better than 0.05% per 2,000 hours of operation. ? extended resistance range - from 1 k ohm to 10 megohm. ? precision tolerances - 0.1% is standard, and tolerances of 1% and 0.05% are available. ? wide operating temperature range - from -55c to +175c. ? small size - with four miniature rectangular cases for maximum packaging density and minimum mounting area. ? high power density - with power ratings of 0.2 watt and 0.3 watt in molded cases, the largest of which is a standard ck06 package. ? caddock's non-inductive performance - provides faster settling times and minimum distortion in all types of high frequency circuits. ? high density packaging - the radial-lead mounting and small rectangular case of the type tk resistors permit high packaging densities in low pro?le circuitry. because the four models of the type tk resistors are available in an exceptionally wide range of resistance values, lead spacing and mounting space can be standardized in a larger number of designs. building on over 30 years of experience with our unique complex oxide technology, caddock has perfected the tetrinox ? resistance system - the ?rst high resistance system to provide a tc that is well within 10 ppm/c and that is also essentially linear over the entire temperature range from -55c to +125c. the exceptional performance of type tk resistors can achieve improvements in many circuit applications: low tc "matched-pair" voltage dividers can be assembled without pre-selection of resistors. an important application for type tk resistors is in "matched-pair" voltage dividers where the low 5 ppm/c temperature coef?cient provides ratio tracking of less than 10 ppm/c without resistor pre-selection or special testing. with factory selection, type tk resistor pairs can be matched to within 1 ppm/c. extended resistance range reduces power requirements because the type tk resistors provide resistance values as high as 10 megohms - values that are up to 100 times higher than other types of ultra-low tc resistors - engineers can now design precision circuits with lower current drain and lower power requirements. low tc of 5 ppm/c, 10 ppm/c, or 20 ppm/c and resistance range from 1 kohm to 10 megs type tk low tc precision radial-lead film resistors (photos show resistors full size) ordering information: tk633 - 10.0 meg - 0.1% - 10 ppm/ c model number t olerance resistor v alue t emperatur e coef ficient page 1 of 2 28_il115.1004
sales and corporate of?ce 1717 chicago avenue riverside, california 92507-2364 phone: (951) 788-1700 fax: (951) 369-1151 applications engineering 17271 north umpqua hwy. roseburg, oregon 97470-9422 phone: (541) 496-0700 fax: (541) 496-0408 e-mail: caddock@caddock.com ? web: www.caddock.com for caddock distributors listed by country see caddock.com/contact/dist.html ? 2004 caddock electronics, inc. ca d k do c dimensions encap- sulation leadwire max. w orking v oltage model no. wattage @ +12 5 c temperature coefficient ppm/ c dielect . strength limite d by maximum w orking vo ltage resistance min. max. comments ref. case "d" dwg. t ransfer molded tinned copper tk 633v 300 5, 10 or 20 400 1.51 me g 10 meg with standof f ref. case "a" dwg. t ransfer molded tinned copper tk 621 200 5, 10 or 20 300 501 k 2 meg ref. case "b" dwg. t ransfer molded tinned copper tk 633 300 5, 10 or 20 400 1.51 me g 10 meg ref. case "c" dwg. t ransfer molded tinned copper tk 639 300 5, 10 or 20 400 1.51 me g 10 meg ref. case "e" dwg. t ransfer molded gold plated tk 634 300 5, 10 or 20 400 1.51 me g 10 meg resistance tolerance: 0.1% (tolerances of 1% and 0.05% on special order). operating temperature: -55c to +175c. tc temperature range: -55c to +125c. overload*: 6.25 times rated power for 5 seconds at voltage not to exceed 1.5 times maximum rated working voltage, r less than 0.05%. temperature coef?cient identi?ed with color stripe on the top edge of the part: 5 ppm/c white stripe 10 ppm/c no stripe 20 ppm/c green stripe type tk low tc precision radial-lead film resistors - standard resistance range resistance tolerance: 0.1% (tolerances of 1% and 0.05% on special order). operating temperature: -55c to +175c. tc temperature range: -55c to +125c. overload*: 1.5 times rated working voltage for 5 seconds, r less than 0.2%. thermal shock: mil-std-202, method 107, cond. b, r less than 0.1%. low temperature operation*: r less than 0.05%. dielectric withstanding voltage*: r less than 0.05% . moisture resistance*: mil-std-202, method 106, r less than 0.10%. type tk low tc precision radial-lead film resistors - extended resistance range dimensions in inches and (millimeters) case "b" load life*: 2,000 hours at +125c, r less than 0.2%. shelf life (typical): 50 ppm/year. insulation resistance: 10,000 megohms. vibration*: r less than 0.05%. shock*: r less than 0.05% . *test methods per procedures of mil-prf-55182/9. thermal shock: mil-std-202, method 107, cond. b, r less than 0.05%. low temperature operation*: r less than 0.02%. dielectric withstanding voltage*: r less than 0.02%. moisture resistance*: mil-std-202, method 106, 1k to 500k r less than 0.05%, 500.1k to 1.5 meg r less than 0.10%. resistance min. max. dimensions encap- sulation leadwire max. w orking v oltage model no. wattage @ +125 c temperature coefficient ppm/ c dielect . strength comments ref. case "d" dwg. t ransfer molded t inned copper tk 133v 0.3 300 5, 10, or 2 0 400 1 k 1.5 meg with standof f ref. case "b" dwg. t ransfer molded t inned copper tk 133 0.3 300 5, 10, or 2 0 400 1 k 1.5 meg ref. case "a" dwg. t ransfer molded t inned copper tk 121 0.2 200 5, 10, or 2 0 300 1 k 500 k ref. case "e" dwg. t ransfer molded gold plated tk 134 0.3 300 5, 10, or 2 0 400 1 k 1.5 meg ref. case "c" dwg. t ransfer molded t inned copper tk 139 0.3 300 5, 10, or 2 0 400 1 k 1.5 meg case "a" model tk133v and tk633v .025 .002 (.64 .05) dia., leadwire offset .012 (.31) from centerline .250 1.27) .050 (6.35 .290 .010 (7.37 .26) .200 .015 (5.08 .38) (centered) 10.0 meg tk633v 0.1% .090 (2.29) .030 .004 (.76 .10) .095 .005 (2.41 .13) .290 .010 (7.37 .26) model tk121 and TK621 2.00 meg TK621 0.1% 1.50 +3.18) - 0.00) +.125 - .000 .150 .015 (3.81 .38) (centered) .245 .010 (6.22 .26) (38.10 .095 .005 (2.41 .13) .245 .010 (6.22 .26) .025 .002 (.64 .05) dia., leadwire offset .012 (.31) from centerline model tk139 and tk639 .305 .010 (7.7 5 .26) .105 .005 (2.67 .13) .305 .010 (7.75 .26) .025 .002 (.64 .05) dia., leadwire offset .012 (.31) from centerline 10.0 meg tk639 0.1% 1.50 +3.18) - 0.00) +.125 - .000 .150 .015 (3.81 .38) (centered) (38.10 case "c" case "d" derating curve: ra ted load, % ambien t t empera ture, c 100 80 60 40 20 0 25 75 125 175 225 model tk133 and tk633 .290 .010 (7.3 7 .26) 1.50 +3.18) - 0.00) +.125 - .000 (38.10 .095 .005 (2.41 .13) .025 .002 (.64 .05) dia., leadwire offset .012 (.31) from centerline .290 .010 (7.37 .26) .200 .015 (5.08 .38) (centered) 10.0 meg tk633 0.1% load life*: 2,000 hours at +125c, 1k to 500k r less than 0.07%, 500.1k to 1.5 meg. r less than 0.10%. shelf life (typical): 25 ppm/year. insulation resistance: 10,000 megohms. vibration*: r less than 0.03%. shock*: r less than 0.05% . *test methods per procedures of mil-prf-55182/9. temperature coef?cient identi?ed with color stripe on the top edge of the part: 5 ppm/c white stripe 10 ppm/ c no stripe 20 ppm/ c green stripe model tk134 and tk634 .025 .002 (.64 .05) dia., leadwire offset .012 (.31) from centerline .250 1.27) .050 (6.35 .290 .010 (7.37 .26) .200 .015 (5.08 .38) (centered) 10.0 meg tk634 0.1% .095 .005 (2.41 .13) .290 .010 (7.37 .26) case "e" type tk low tc precision radial-lead film resistors page 2 of 2 28_il115.1004
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