Type TK Low TC Precision Radial-Lead Film Resistors Page 1 of 2 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 Resistors with the Tetrinox(R) 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 Coefficient - 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 Building on over 30 years of experience with our unique complex oxide technology, Caddock has perfected the Tetrinox(R) resistance system - the first 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. 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. (Photos show resistors full size) The exceptional performance of Type TK resistors can achieve improvements in many circuit applications: * Caddock's Non-Inductive Performance - provides faster Low TC "Matched-Pair" Voltage Dividers can be Assembled Without Pre-Selection of Resistors. * High Density Packaging - the radial-lead mounting and An important application for Type TK resistors is in "matched-pair" voltage dividers where the low 5 ppm/C temperature coefficient provides ratio tracking of less than 10 ppm/C without resistor pre-selection or special testing. settling times and minimum distortion in all types of high frequency circuits. small rectangular case of the Type TK resistors permit high packaging densities in low profile 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. 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. Ordering Information: TK633 - 10.0 Meg - 0.1% - 10 ppm/C Model Number Tolerance Resistor Value Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 (c) 2004 Caddock Electronics, Inc. CADDOCK e-mail: caddock@caddock.com * web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html Temperature Coefficient Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 28_IL115.1004 Type TK Low TC Precision Radial-Lead Film Resistors Page 2 of 2 Type TK Low TC Precision Radial-Lead Film Resistors - Standard Resistance Range Temperature Max. Wattage Working Dielect. Coefficient @ +125C Voltage Strength ppm/C Model No. Resistance Min. Max. Dimensions TK 121 5, 10, or 20 0.2 200 300 1K 500 K Ref. Case "A" Dwg. TK 133 5, 10, or 20 0.3 300 400 1K 1.5 Meg Ref. Case "B" Dwg. TK 133V 5, 10, or 20 0.3 300 400 1K 1.5 Meg Ref. Case "D" Dwg. TK 134 5, 10, or 20 0.3 300 400 1K 1.5 Meg Ref. Case "E" Dwg. TK 139 5, 10, or 20 0.3 300 400 1K 1.5 Meg Ref. Case "C" Dwg. 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%. Encapsulation Leadwire Comments Transfer Molded Transfer Molded Transfer Molded Transfer Molded Transfer Molded Tinned Copper Tinned Copper Tinned Copper Gold Plated Tinned Copper With Standoff Temperature Coefficient identified 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 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. 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%. Type TK Low TC Precision Radial-Lead Film Resistors - Extended Resistance Range TK 621 5, 10 or 20 TK 633 5, 10 or 20 TK 633V 5, 10 or 20 TK 634 5, 10 or 20 TK 639 5, 10 or 20 Limited by Maximum Working Voltage 200 Resistance 300 2 Meg 400 1.51 Meg 10 Meg Ref. Case "B" Dwg. 1.51 Meg 10 Meg Ref. Case "D" Dwg. 300 400 1.51 Meg 10 Meg Ref. Case "E" Dwg. 300 400 1.51 Meg 10 Meg Ref. Case "C" Dwg. .095 .005 (2.41 .13) TK621 2.00 MEG 0.1% .245 .010 (6.22 .26) .025 .002 (.64 .05) DIA., LEADWIRE OFFSET .012 (.31) FROM CENTERLINE .090 (2.29) .095 .005 (2.41 .13) .030 .004 (.76 .10) .250 .050 (6.35 1.27) .200 .015 (5.08 .38) (CENTERED) Applications Engineering 17271 North Umpqua Hwy. Roseburg, Oregon 97470-9422 Phone: (541) 496-0700 Fax: (541) 496-0408 (c) 2004 Caddock Electronics, Inc. Comments Tinned Copper Tinned Copper Tinned Copper Gold Plated Tinned Copper With Standoff Case "B" .290 .010 (7.37 .26) .305 .010 (7.75 .26) .105 .005 (2.67 .13) TK639 10.0 MEG 0.1% .290 .010 (7.37 .26) .305 .010 (7.75 .26) +.125 1.50 -.000 +3.18) (38.10 -0.00) .025 .002 (.64 .05) DIA., LEADWIRE OFFSET .012 (.31) FROM CENTERLINE .025 .002 (.64 .05) DIA., LEADWIRE OFFSET .150 .015 .012 (.31) (3.81 .38) FROM (CENTERED) CENTERLINE Case "E" Model TK134 and TK634 .095 .005 (2.41 .13) .290 .010 (7.37 .26) TK634 10.0 MEG 0.1% .290 .010 (7.37 .26) .025 .002 (.64 .05) DIA., LEADWIRE OFFSET .012 (.31) FROM CENTERLINE Case "C" TK633 10.0 MEG 0.1% .200 .015 (5.08 .38) (CENTERED) 5 ppm/C White Stripe 10 ppm/ C No Stripe 20 ppm/ C Green Stripe Model TK139 and TK639 .095 .005 (2.41 .13) +.125 1.50 -.000 +3.18) (38.10 -0.00) Temperature Coefficient identified with color stripe on the top edge of the part: 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. Model TK133 and TK633 Case "D" TK633V 10.0 MEG 0.1% Leadwire Transfer Molded Transfer Molded Transfer Molded Transfer Molded Transfer Molded 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%. Model TK133V and TK633V .290 .010 (7.37 .26) Encapsulation Ref. Case "A" Dwg. 400 Case "A" .150 .015 (3.81 .38) (CENTERED) 501 K 300 Model TK121 and TK621 +.125 1.50 -.000 +3.18) (38.10 -0.00) Max. 300 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%. .245 .010 (6.22 .26) Dimensions Min. .250 .050 (6.35 1.27) .200 .015 (5.08 .38) (CENTERED) CADDOCK .290 .010 (7.37 .26) .025 .002 (.64 .05) DIA., LEADWIRE OFFSET .012 (.31) FROM CENTERLINE Derating Curve: RATED LOAD, % Max. Temperature Wattage Dielect. Coefficient @ +125C Working Strength Voltage ppm/C Model No. 100 80 60 40 20 0 25 75 125 175 225 AMBIENT TEMPERATURE, C DIMENSIONS IN INCHES AND (MILLIMETERS) e-mail: caddock@caddock.com * web: www.caddock.com For Caddock Distributors listed by country see caddock.com/contact/dist.html Sales and Corporate Office 1717 Chicago Avenue Riverside, California 92507-2364 Phone: (951) 788-1700 Fax: (951) 369-1151 28_IL115.1004