502 VISHAY | Alldatasheet

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www.vishay.com Vishay Spectrol Revision: 29-Nov-17 1 Document Number: 57064 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 7/8" (22.2 mm) Ten Turn Wirewound 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: fo r definitions of compliance please see www.vishay.com/doc?99912 QUICK REFERENCE DATA Sensor type ROTATIONAL, multi turn wirewound Output type Output by turrets Market appliance Professional Dimensions 7/8" (22.2 mm) ELECTRICAL SPECIFICATIONS PARAMETER Total resistance Tolerance: 100 and above Below 100  STANDARD 15  to 100 k ± 3 % ± 5 % SPECIAL 15  to 150 k ± 1 % ± 3 % Linearity (independent) 15  to 50  50  to 1 k 1 k to 5 k 5 k and above STANDARD ± 0.25 % ± 0.25 % ± 0.25 % ± 0.25 % BEST PRACTICAL ± 0.15 % ± 0.10 % ± 0.075 % ± 0.05 % Noise 100  ENR Electrical rotation 3600° +4° -0° Power rating: Additional sections

2.0 W at 70 °C ambient derated to zero at 125 °C

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 RMS, 60 Hz Absolute minimum resistance Linearity x total resistance or 0.5  whichever is greater End Voltage Linearity x total applied voltage for total resistance above 20 , 2.0 % of applied voltage for 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

MODEL STYLE GANGS OHMIC VALUE GANGS No 1 OHMIC VALUE GANGS No 2 SPECIAL REQUEST 500 501 502 B: bushing S: servo 470 = 47  222 = 2.200  103 = 10 k For ohmic value range see electrical specification 470 = 47  222 = 2.200  103 = 10 k For ohmic value range see electrical specification Custom reference PART NUMBER DESCRIPTION (for information only) 502- 2 1 203 203 XXXX MODEL STYLE GANGS OHMIC VALUE GANGS No 1 OHMIC VALUE GANGS No 2 SPECIAL B = 1 S = 2

www.vishay.com Vishay Spectrol Revision: 29-Nov-17 2 Document Number: 57064 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 DIMENSIONS in inches (millimeters) MECHANICAL SPECIFICATIONS PARAMETER Rotation 3600° +10° -0° Bearing type SERVO Ball bearing BUSHING MOUNT Sleeve bearing Torque (maximums) Servo section 1 Bushing section 1 Each additional section STARTING 0.4 oz. - in (28.8 g - cm) 0.5 oz. - in (36.0 g - cm) 0.3 oz. - in (21.6 g - cm) RUNNING 0.3 oz. - in (21.6 g - cm) 0.4 oz. - in (28.8 g - cm) 0.2 oz. - in (14.4 g - cm) Mechanical runout (maximums): Shaft runout (TIR) Pilot dia. runout (TIR) Lateral runout (TIR) Shaft end play Shaft radial play SERVO 0.002" (0.05 cm) 0.002" (0.05 cm) 0.002" (0.05 cm) 0.005" (0.13 cm) 0.002" (0.05 cm) BUSHING 0.002" (0.05 cm) 0.002" (0.05 cm) 0.005" (0.13 cm) 0.005" (0.13 cm) 0.003" (0.08 cm) Weight: Single section Each additional section 1.20 oz. (34.0 g) 0.80 oz. (22.7 g) Stop strength 100 oz. - in, static (7.2 kg - cm) Ganging 2 sections, term inal alignment, added sections, within ± 10° of section 1 terminals Moment of inertia 0.45 g - cm 2 per section maximum 0.687 (17.45) ± 0.031 0.312 (7.92) ± 0.015 Ø 0.1248 TYP. (3.17) + 0.0000 - 0.0003 Ø 0.281 (7.14) + 0.000 - 0.001 /4 - 32 UNEF 2AMTG. FACE 0.062 (1.57) ± 0.015 Ø 0.875 (22.22) ± 0.015 1.448 (36.78) ± 0.010 0.168 MIN. (4.27) 45° ± 10° 0.172 TYP. (4.37) ± 0.015 0.594 R (15.09) MAX. 1.536 (39.01) ± 0.010 0.375 (9.52) ± 0.031 0.057 MIN. (1.45) 0.062 (1.57) 0.062 (1.57) Ø 0.875 (22.22) Ø 0.7500 (19.05) + 0.0000 - 0.0005 MTG. FACE0.750 MAX. (19.05) 1 ADD 1.282 ± 0.002 (32.56) FOR EACH ADDITIONAL SECTION TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° SCHEMATIC CW 12 3 0.257 MIN. (6.53) 123 BUSHING MOUNT: 502B/502-1 SERVO MOUNT: 502S/502-2

www.vishay.com Vishay Spectrol Revision: 29-Nov-17 3 Document Number: 57064 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 POWER RATING CHART (Ratings for cup No. 1. Additi onal cups 75 % of values shown) Note

  • Nothing stated herein shall be construed as a guarantee of quality or durability MATERIAL SPECIFICATIONS Housing Phenolic (black) glass filled Lids Aluminum, anodized Shaft Stainless steel, non-magnetic, non-passivated Terminals Brass, plated for solderability Clamp ring Stainless steel Bushing mounting hardware Lockwasher internal tooth: Panel nut: Steel, nickel plated Brass, nickel plated MARKING Unit identification Units shall be marked with Vishay spectrol name and model no, resistance and resistance tolerance, linearity, terminal identification, and date code. Example of a marking for a standard part: 502-11050 20 40 60 80 100 120 140 160 AMBIENT TEMPERATURE IN °C RATED POWER IN W SPECIAL 150 °C STANDARD 125 °C ENVIRONMENTAL SPECIFICATIONS Vibration 15 g thru 2000 CPS Shock 50 g Salt Spray 96 h Rotational Life 2 mill ion shaft revolutions Load Life 900 h Operating Temperature Range -55 °C to +125 °C RESISTANCE ELEMENT DATA STANDARD RESISTANCE VALUES () RESO- LUTION (%) OHMS PER TURN MAXIMUM CURRENT AT 70 °C AMBIENT (mA) MAXIMUM VOLTAGE ACROSS COIL (V) WIRE TEMP. COEF. (ppm/°C) 15 0.088 0.013 365 5.48 800 20 0.066 0.013 316 6.32 800 50 0.050 0.025 200 10.0 800 100 0.050 0.050 141 14.1 180 200 0.049 0.098 100 20.0 20 500 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 5K 0.023 1.173 20.0 100 20 10K 0.017 1.731 14.1 141 20 20K 0.016 3.142 10.0 200 20 50K 0.011 5.639 6.32 316 20 100K 0.010 10.325 4.47 447 20 150K 0.010 14.170 3.65 548 20

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