Model 502 www.vishay.com Vishay Spectrol 7 / " (22.2 mm) Ten Turn Wirewound 8 Upper Grade Precision Potentiometer FEATURES • Bushing mount and servo mount designs are available • Large ohmic value range: 15  to 100 k • Dual gang configuration • Improved linearity available • Long life > 2 million shaft revolutions • Material categorization: For definitions of compliance QUICK REFERENCE DATA please see www.vishay.com/doc?99912 Sensor type ROTATIONAL, multi turn wirewound Output type Output by turrets Market appliance Professional 7 Dimensions / " (22.2 mm) 8 ELECTRICAL SPECIFICATIONS PARAMETER  STANDARD SPECIAL Total resistance 15  to 100 k 15  to 150 k Tolerance: 100 and above ± 3 % ± 1 % Below 100  ± 5 % ± 3 % Linearity (independent) STANDARD BEST PRACTICAL 15  to 50  ± 0.25 % ± 0.15 % 50  to 1 k ± 0.25 % ± 0.10 % 1 k to 5 k ± 0.25 % ± 0.075 % 5 k and above ± 0.25 % ± 0.05 % Noise 100  ENR Electrical rotation 3600° + 4° - 0° Power rating: 2.0 W at 70 °C ambient derated to zero at 125 °C Additional sections 75 % of the rating of section 1 (1.5 W at 70 °C) Insulation resistance 1000 M minimum 500 V DC Dielectric strength 1000 V , 60 Hz RMS Absolute minimum resistance Linearity x total resistance or 0.5  whichever is greater Linearity x total applied voltage for total resistance above 20 , 2.0 % of applied voltage for End Voltage 20  and below Phasing (CCW end points) Additional sections phased to section 1 within ± 2° Taps (extra) 54 available as special, standard tolerance ± 2° ORDERING INFORMATION/DESCRIPTION The Model 502 can be ordered from this datasheet with a variety of alternate characteristics, as shown above. For most rapid service on your order, please state: 502 S 2 10K 20K BO1 MODEL STYLE NUMBER OF TOTAL RESISTANCE OF EACH SECTION PACKAGING SECTIONS B: Bushing Beginning with the section nearest 1 or 2 Box of 1 piece S: Servo the mounting end Other characteristics will be standard as described on this datasheet. If special characteristics are required, such as: special linearity tolerance, special resistance tolerance, extra taps, non-linear functions, etc., please state these on your order and allow additional lead time for delivery. SAP PART NUMBERING GUIDELINES 502 S 2 103 203 B01 MODEL STYLE NUMBER OF OHMIC VALUE OHMIC VALUE PACKAGING SECTIONS SECTION N° 1 SECTION N° 2 Revision: 18-Sep-12 Document Number: 57064 1 For technical questions, contact: sferprecisionpot@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 Model 502 www.vishay.com Vishay Spectrol DIMENSIONS in inches (millimeters) BUSHING MOUNT ± 0.010 1 ± 0.031 1.448 0.687 (36.78) (17.45) ± 0.015 ± 0.015 ± 10° 0.168 MIN. 0.312 0.172 TYP. + 0.0000 45° (4.27) (7.92) - 0.0003 (4.37) Ø 0.1248 TYP. (3.17) 2 1 3 ± 0.015 Ø 0.875 (22.22) 0.594 R (15.09) MAX. + 0.000 ± 0.015 Ø 0.281 - 0.001 0.062 (7.14) (1.57) MTG. FACE 1 / - 32 UNEF 2A 4 SERVO MOUNT 1 ± 0.010 1.536 (39.01) ± 0.031 0.375 0.257 MIN. (9.52) (6.53) 0.057 MIN. (1.45) 0.062 (1.57) 0.062 (1.57) 23 1 2 + 0.0000 CW - 0.0005 Ø 0.7500 Ø 0.875 1 ADD 1.282 ± 0.002 (32.56) FOR EACH 3 1 (19.05) (22.22) ADDITIONAL SECTION SCHEMATIC TOLERANCES: UNLESS OTHERWISE NOTED. 0.750 MAX. DECIMALS ± 0.005 ANGLES ± 2° MTG. FACE (19.05) MECHANICAL SPECIFICATIONS PARAMETER Rotation 3600° + 10° - 0° SERVO BUSHING MOUNT Bearing type Ball bearing Sleeve bearing Torque (maximums) STARTING RUNNING Servo section 1 0.4 oz. - in (28.8 g - cm) 0.3 oz. - in (21.6 g - cm) Bushing section 1 0.5 oz. - in (36.0 g - cm) 0.4 oz. - in (28.8 g - cm) Each additional section 0.3 oz. - in (21.6 g - cm) 0.2 oz. - in (14.4 g - cm) SERVO Mechanical runout (maximums): BUSHING 0.002" (0.05 cm) Shaft runout (TIR) 0.002" (0.05 cm) 0.002" (0.05 cm) Pilot dia. runout (TIR) 0.002" (0.05 cm) 0.002" (0.05 cm) Lateral runout (TIR) 0.005" (0.13 cm) 0.005" (0.13 cm) Shaft end play 0.005" (0.13 cm) 0.002" (0.05 cm) Shaft radial play 0.003" (0.08 cm) Weight: Single section 1.20 oz. (34.0 g) Each additional section 0.80 oz. (22.7 g) Stop strength 100 oz. - in, static (7.2 kg - cm) Ganging 2 sections, terminal alignment, added sections, within ± 10° of section 1 terminals 2 Moment of inertia 0.45 g - cm per section maximum Revision: 18-Sep-12 Document Number: 57064 2 For technical questions, contact: sferprecisionpot@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 Model 502 www.vishay.com Vishay Spectrol ENVIRONMENTAL SPECIFICATIONS MATERIAL SPECIFICATIONS Vibration 15 g thru 2000 CPS Housing Phenolic (black) glass filled Shock 50 g Lids Aluminum, anodized Salt Spray 96 h Stainless steel, non-magnetic, Shaft non-passivated Rotational Life 2 million shaft revolutions Terminals Brass, plated for solderability Load Life 900 h Clamp ring Stainless steel Operating Temperature Range - 55 °C to + 125 °C Bushing mounting hardware Lockwasher internal tooth: Steel, nickel plated Panel nut: Brass, nickel plated RESISTANCE ELEMENT DATA MAXIMUM MAXIMUM STANDARD WIRE OHMS CURRENT VOLTAGE RESISTANCE RESO- TEMP. MARKING PER AT 70 °C ACROSS VALUES LUTION COEF. TURN AMBIENT COIL Units shall be marked with Vishay spectrol () (%) (ppm/°C) (mA) (V) Unit name and model no, resistance and resistance identification tolerance, linearity, terminal identification, and 15 0.088 0.013 365 5.48 800 date code 20 0.066 0.013 316 6.32 800 50 0.050 0.025 200 10.0 800 POWER RATING CHART 100 0.050 0.050 141 14.1 180 (Ratings for cup No. 1. Additional cups 75 % of values 200 0.049 0.098 100 20.0 20 shown) 500 0.037 0.185 63.2 31.6 20 1K 0.034 0.339 44.7 44.7 20 2K 0.029 0.571 31.6 63.2 20 6 5K 0.023 1.173 20.0 100 20 5 10K 0.017 1.731 14.1 141 20 20K 0.016 3.142 10.0 200 20 4 50K 0.011 5.639 6.32 316 20 100K 0.010 10.325 4.47 447 20 3 150K 0.010 14.170 3.65 548 20 2 SPECIAL 150 °C 1 STANDARD 125 °C 0 20 40 60 80 100 120 140 160 AMBIENT TEMPERATURE IN °C Revision: 18-Sep-12 Document Number: 57064 3 For technical questions, contact: sferprecisionpot@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 RATED POWER IN W Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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