117S, 126S, 151S, 176S www.vishay.com Vishay Techno Multi-Turn 3/8" (9.52 mm) Square Wirewound Trimmers FEATURES * Precious metal wiper * 1.0 W to +85 C * TCR 50 ppm/C * Solderable leads APPLICATIONS * Military quality at affordable prices Wirewound trimmers are particularly useful in those applications where any combination of high power, low temperature coefficient of resistance and / or excellent long term life stability are important design considerations. STANDARD RESISTANCE VALUES RESISTANCE (1) () NOMINAL RESOLUTION (%) 10 1.10 10 to 10 k (extended range available in non MIL-SPEC product) 20 0.85 50 0.65 5 % standard (closer tolerances available) 100 0.51 200 0.40 50 ppm/C 500 0.45 1K 0.34 2K 0.27 5K 0.20 10K 0.16 20K 0.13 ELECTRICAL SPECIFICATIONS Electrical travel 2 turns 4 turns Resistance range Resistance tolerance Temperature coefficient (-65 C to +150 C) 1.0 W at +85 C derated to 0 W at +150 C, these specifications exceed MIL-SPEC Power rating 1 or 2 %, whichever is greater End resistance Equivalent noise resistance (ENR) 100 maximum Dielectric (DWV) 1000 VAC at atmospheric pressure These specifications exceed MIL-SPEC Insulation resistance Note (1) Other resistances available upon request > 100 000 M (500 VDC) these specifications exceed MIL-SPEC CIRCUIT DIAGRAM ENVIRONMENTAL SPECIFICATIONS Temperature limits: -65 C to +150 C Sealing: fully sealed case (non-hermetic) 1 MECHANICAL SPECIFICATIONS CW 3 2 Operating torque: 5 oz.-inches maximum Rotation: clutch stop, wiper idles Weight: 0.935 g maximum Resistive element: nickel chromium Rotational life: 200 cycles minimum Terminal strength: 2 lbs for 10 s GLOBAL PART NUMBER INFORMATION New global part numbering: 117S500RB (preferred part number format) 1 1 7 S 5 0 0 R B GLOBAL MODEL TYPE RESISTANCE VALUE PACKAGING 117 = teflon leadwire 126 = PC mount 151 = top adjustment screw 176 = side adjustment screw / = continuous rotation S = clutch stop R = decimal K = thousand 100R = 100 5K00 = 5 k B = bulk Historical part numbering: 117s501 (will continue to be accepted) 117 s 501 HISTORICAL MODEL TYPE RESISTANCE VALUE Revision: 03-Apr-17 Document Number: 68016 1 For technical questions, contact: sfer@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 117S, 126S, 151S, 176S www.vishay.com Vishay Techno DIMENSIONS 3/8" (9.52 mm) Square in inches (millimeters) P Lead Style - 126S L Lead Style - 117S 0.375 0.005 (9.52 0.127) 0.040 0.010 (1.02 0.254) 0.419 0.010 (10.64 0.254) 0.075 0.010 (1.90 0.254) Radius 2 0.055 0.005 (1.40 0.127) X 0.380 0.005 G (9.65 0.127) CW Y 0.313 0.005 (7.95 0.127) 0.117 0.005 (2.97 0.127) 0.023 0.003 (0.584 0.076) R 0.023 0.003 (0.584 0.076) 0.100 0.005 (2.54 0.127) #30 AWG leads, color coded Teflon insulated 6" (152.40 mm) minimum length 0.217 0.005 (5.51 0.127) 0.167 0.005 (4.24 0.127) 0.093 0.005 (2.36 0.127) Dia. 0.150 0.010 (3.81 0.254) W Lead Style - 151S 3 0.100 0.005 (2.54 0.127) 0.025 0.003 (0.635 0.076) 0.314 0.005 (7.98 0.127) 0.060 0.005 (1.52 0.127) Dia. 1 0.375 0.005 (9.52 0.127) X 0.300 (7.62) Min. 0.027 0.002 (0.686 0.051) Dia. X Lead Style - 176S 0.314 0.005 (7.98 0.127) 0.190 0.005 (4.83 0.127) 0.025 0.003 (0.635 0.076) 0.346 0.005 (8.79 0.127) 0.023 0.003 (0.584 0.076) 0.093 0.005 (2.36 0.127) Dia. 0.375 0.005 (9.52 0.127) 3 2 1 0.410 0.005 (10.41 0.127) 3 2 1 0.300 (7.62) Min. 0.023 0.003 (0.584 0.076) 0.027 0.002 (0.686 0.051) Dia. 0.300 (7.62) Min. 0.100 0.005 (2.54 0.127) 0.100 0.005 (2.54 0.127) 0.027 0.002 (0.686 0.051) Dia. 0.375 0.005 (9.52 0.127) 0.025 0.003 (0.635 0.076) 0.093 0.005 (2.36 0.127) Dia. 0.410 0.010 (10.41 0.254) 0.040 0.005 (1.02 0.127) 0.190 0.005 (4.83 0.127) 0.139 0.005 (3.53 0.127) 0.040 0.005 (1.02 0.127) 0.023 0.003 (0.584 0.076) 0.100 0.005 (2.54 0.127) 0.139 0.005 (3.53 0.127) 0.100 0.005 (2.54 0.127) ENVIRONMENTAL PERFORMANCE CONDITIONS MIL-PRF-39015 REQUIREMENT TYPICAL CHANGE 50 h at 1 W at + 25 C R 0.5 % (2) R < 0.08 % R 1.0 % (2) R < 0.07 % 72 h, no load at - 65 C R 1.0 % (2) R < 0.05 % Low temperature operation 1 h storage, 45 min rated power at - 55 C R 1.0 % (2)(3) R < 0.08 % High temperature exposure 1000 h, no load at + 150 C R 1.0 % (2)(3) R < 0.03 % R 1.0 % (2) R < 0.22 % R 1.0 % (2) R < 0.02 % TEST (1) Power conditioning Thermal shock (108) (107) Low temperature storage 5 cycles, - 55 C to + 125 C Moisture resistance (106) 480 h at rated power with humidity ranging from 80 % RH to 98 % RH Resistance to soldering heat (210) + 350 C for 3 s R 1.0 % (2)(3) R < 0.27 % Shock (213) 18 shocks, 100 g, 6 ms, sawtooth, 3 axes Vibration (204) 10 Hz to 2000 Hz, 20 g, 12 h, 3 axes R 1.0 % (2)(3) R < 0.04 % 200 cycles R 2.0 % R < 0.06 % 10 000 h at rated power at + 85 C R 3.0 % R < 0.23 % Load life (108) Notes (1) Numbers in parenthesis refer to test method MIL-STD-202 as modified by the detail specification (2) For values below 100 W, add 0.05 W to the allowable change (3) The referenced tests also require that setting stability change shall not exceed 0.05 % plus the specified maximum resolution DERATING 1.00 0.80 W Rotational life 0.60 0.40 0.20 0 Revision: 03-Apr-17 25 50 75 85 100 125 150 AMBIENT TEMPERATURE C 175 Document Number: 68016 2 For technical questions, contact: sfer@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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