bulk metal ? foil ultra high technology preci sion trimming potentiometers, 3 / 8 " square, rj24 style, designed to m eet or exceed the requirements of mil-prf-39035, char. h with a sm ooth and unidirectional output accutrim? 1260 (rj24 style) vishay foil resistors document number: 63054 for any questions, contact: foil@vishaypg.com www.foilresistors.com revision: 24-mar-10 1 introduction vishay foil precision trimmers have the bulk metal ? foil resistive element which possesses a unique inherent temperature and load life st ability. plus, their advanced virtually back lash-free adju stment mechanism makes them easy to set quickly and accurately and keeps the setting exactly on target. features ? temperature coefficient of resistance (tcr): 10 ppm/c (- 55 c to + 150 c ref. at + 25 c); through the wiper (2) ; 25 ppm/c (see table 2 for low values) ? a smooth and unidirectional resistance with leadscrew adjustment ? load life stability: 0.1 % typical r, 1.0 % maximum r under full rated power at + 85 c for 10 000 h ? settability: 0.05 % typical; 0.1 % maximum ? setting stability: 0.1 % typical; 0.5 % maximum ? power rating: 0.25 w at + 85 c ? resistance range: 5 to 10 k ? resistance tolerance: 5 %, 10 % ? ?o?-ring prevents ingress of fluids during any board cleaning operation ? electrostatic discharge (esd) up to 25 000 v ? terminal finish: tin/lead note ? see figure 1 cermet wiper travel resistance wiper travel resistance bulk metal foil wirewound wiper travel resistance table 1 - model selection model termination style average weight (g) power rating at + 85 c ambient no. of turns 1260 w-edge mount, top adjust 0.4 0.25 w 21 2 x-edge mount, side adjust table 2 - 1260 (rj24 style) series electrical specifications temperature coefficient of resistance (tcr) 50 to 10 k end-to-end (1) 10 ppm/c maximum (- 55 c to + 150 c, + 25 c ref.) temperature coefficient of resistance (tcr) 5 , 10 and 20 through the wiper (2) 20 ppm/c 25 ppm/c stability load life at 10 000 h 0.1 % typical r 1.0 % maximum r (under full rated power of 0.25 w at + 85 c) power rating (3) 0.25 w at + 85 c settability 0.05 % typical; 0.1 % maximum setting stability 0.1 % typical; 0.5 % maximum contact resistance variation - crv (noise) 3 typical; 10 maximum hop-off 0.25 % typical; 1.0 % maximum high-frequency operation rise/decay time inductance capacitance 1 ns without ringing 0.08 h typical 0.5 pf typical operating temperature range - 55 c to + 150 c table 3 - values vs. tolerances standard resistance values (in ) standard tolerance 5, 10 10 % 20, 50, 100, 200, 500, 1k, 2k, 5k, 10k 5 % table 4 - mechanical specifications adjustment turns 21 2 mechanical stops wiper idles - no discontinuity internal terminations all welded - no flux case material diallyl-phthalate: black (dap) shaft torque 3 oz. in. maximum backlash 0.005 % typical
accutrim? 1260 (rj24 style) vishay foil resistors www.foilresistors.com for any questions, contact: foil@vishaypg.com document number: 63054 2 revision: 24-mar-10 figure 1 - schematic and dimensions in inches (millimeters) standard marking: model no. date code resistance value tolerance notes: adjustment screw 0.090" (2.29 mm) diameter with 0.020" (0.51 mm) x 0.031" (0.79 mm) slot. model 1260 has solder plated copper terminal pins. 0.024" (0.61 mm) diameter, 0.300" (7.62 mm) length minimum. 1260w 0.024 0.006" (0.61 0.15 mm) diameter 3 pins 0.0 8 1 0.010" (2.06 0.25 mm) vishay 2 1 3 cw 0.420" (10.67 mm) maximum 0.0 8 0" (2.03 mm) maximum 0.300" (7.62 mm) minimum 0.015" (0.3 8 mm) minimum 0.100 0.005" (2.54 0.13 mm) 0.010" ( 0.25 mm) c 0.1 8 7 0.020" (4.75 0.51 mm) 0.090 0.005" (2.29 0.13 mm) diameter 0.170 0.025" (4.32 0.64 mm) 0.075 0.010" (1.91 0.25 mm) 0.375 0.015" (9.53 0.3 8 mm) 1260x 0.024 0.006" (0.61 0.15 mm) diameter 3 pins vishay 2 3 1 cw 0.0 8 0" (2.03 mm) maximum 0.300" (7.62 mm) minimum 0.015" (0.3 8 mm) 0.1 8 7 0.020" (4.75 0.51 mm) 0.100 0.005" (2.54 0.13 mm) 0.010" ( 0.25 mm) c 0.090 0.005" (2.29 0.13 mm) dia 0.170 0.025" (4.32 0.64 mm) 0.075 0.010" (1.91 0.25 mm) 0.375 0.015" (9.53 0.3 8 mm) 0.0 8 1 0.010" (2.06 0.25 mm) 0.420" (10.67 mm) maximum minimum figure 2 - power derating curve ambient temperature c + 8 5 c + 100 + 75 + 50 + 25 0 percent of rated power - 75 + 150 + 125 + 100 + 75 + 50 + 25 0 - 25 - 50 + 175
accutrim? 1260 (rj24 style) vishay foil resistors document number: 63054 for any questions, contact: foil@vishaypg.com www.foilresistors.com revision: 24-mar-10 3 notes (1) maximum tcr applies to the 3 (sigma) limit or 99.73 % of a production lot. (measured end-to-end with wiper off the element.) (2) measurements of tcr through the wiper are influenced more by setting stability and the percentage of the total resistance in use (at the wiper) than by fundamental resistance change due to temperature alone. the parameter shown in table 2 is a 2 s distribution typifying the behavior of the device when used with 40 % or more of the total resistance in use. (3) derated linearly for full power at + 85 c to zero power at + 150 c. see figure 2. (4) all r?s are measured to the tolerance specified + 0.01 . (5) whichever is greater. special available options: special marking power conditioning and screening operations. vishay trimmers are inspected 100 % for: ?immersion ? resistance tolerance check ? end resistance ? visual-mechanical ? dynamic tests for continuity, crv by sample for: ?tcr ?dwv table 5 - comparison mil-prf-39035/2 characteristic h (4) 1260 maximum test group i conditioning contact resistance variation - crv (noise) immersion 1.0 % 3.0 % or 3 (5) no continuous stream of bubbles 0.5 % 3 typical, 10 maximum no continuous stream of bubbles test group ia visual and mechanical actual effective electrical travel end resistance dielectric withstanding voltage - dwv per mil-std-202, methods 301 and 105 atmospheric pressure barometric pressure insulation resistance shaft torque thermal shock setting stability no failures 10 to 25 turns 2 % or 2 (5) 600 v ac , 1 min 250 v ac , 1 min 1000 m 3 oz. in. maximum 1.0 % 1.0 % no failures 21 2 turns 2 for values 1 k ; 5 for values 2 k ; 600 v ac , 1 min 250 v ac , 1 min > 1000 m 3 oz. in. maximum 0.5 % 0.5 % test group ii solderability per mil-std-202, method 208 per mil-std-202, method 208 test group iii resistance temperature characteristic - tcr moisture resistance contact resistance variation - crv (noise) 0.005 %/c ( 50 ppm/c) 1.0 % 3.0 % or 3 (5) 0.001 %/c ( 10 ppm/c) 0.5 % 3 typical, 10 maximum test group iv settability shock setting stability vibration setting stability contact resistance variation - crv (noise) salt spray 1.0 % 1.0 % 1.0 % 1.0 % 1.0 % 3.0 % or 3 (5) no corrosion 0.1 % 0.5 % 0.5 % 0.5 % 0.5 % 3 typical, 10 maximum no corrosion test group v solder heat low-temperature operation setting stability low-temperature storage high-temperature exposure setting stability contact resistance variation - crv (noise) integrity of shaft 1.0 % 1.0 % 2.0 % 1.0 % 3.0 % 2.0 % 3.0 % or 3 (5) no loosening or breakage 0.1 % 0.5 % 0.5 % 0.5 % 0.5 % 0.5 % 3 typical, 10 maximum no loosening or breakage test group vi rotational life (200 cycles) contact resistance variation - crv (noise) terminal strength 2.0 % 3.0 % or 3 (5) 2 lbs. 2.0 % 3 typical, 10 maximum 2 lbs. test group vii life (2000 h) at + 85 c life (10 000 h) at + 85 c 3.0 % 5.0 % 0.1 % typical, 1.0 % maximum 0.1 % typical, 1.0 % maximum test group viii solvent resistance no failures no failures
accutrim? 1260 (rj24 style) vishay foil resistors www.foilresistors.com for any questions, contact: foil@vishaypg.com document number: 63054 4 revision: 24-mar-10 note (1) for non-standard requests, please co ntact application engineering. table 6 - global part number information new global part number: Y0069500R000J0L (preferred part number format) denotes precision value characteristics (1) yr = k = k 0 = tin/lead termination 1 to 999 = custom product code tolerance packaging 0069 = 1260w 4069 = 1260x j = 5 % k = 10 % m = 20 % l = foam/box pack for example: above global order y0069 500r000 j 0 l: type: 1260w value: 500.0 absolute tolerance: 5.0 % termination: tin/lead packaging: foam/box pack historical part number: 1260w 500r00 j b (will continue to be used) 1260w 500r00 j b model resistance value tolerance packaging 1260w 1260x 500r00 = 500.00 j = 5 % k = 10 % m = 20 % b = foam/box pack 0695 0r0 0 y0 j0 0 l 0
vishay precision group document no.: 63999 revision: 27-apr-11 www.vishaypg.com 1 legal disclaimer notice all products, product specifications and data are subject to change without notice. vishay precision group, inc., its affliates, agents, and employees, and all persons acting on its or their behalf (collectively, vishay precision group), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. the product specifcations do not expand or otherwise modify vishay precision groups terms and conditions of purchase, including but not limited to, the warranty expressed therein. vishay precision group makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase. to the maximum extent permitted by applicable law, vishay precision group disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of ftness for particular purpose, non-infringement and merchantability. information provided in datasheets and/or specifcations may vary from actual results in different applications and performance may vary over time. statements regarding the suitability of products for certain types of applications are based on vishay precision groups knowledge of typical requirements that are often placed on vishay precision group products. it is the customers responsibility to validate that a particular product with the properties described in the product specifcation is suitable for use in a particular application. no license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any conduct of vishay precision group. the products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay precision group products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay precision group for any damages arising or resulting from such use or sale. please contact authorized vishay precision group personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners. legal disclaimer notice disclaimer document no.: 63999 revision: 27-apr-11
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