202 VISHAY

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www.vishay.com Vishay Spectrol Revision: 07-Dec-2018 1 Document Number: 57052 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 1 3/4" (44.5 mm) Single Turn Wirewound Precision Potentiometer DESIGN SUPPORT TOOLS

FEATURES

  • Large range of ohmic values: 5  to 65 k
  • Screw, servo or bushing mount types available
  • Up to 6 sections on the same shaft
  • Extra taps upon request
  • Material categorization: fo r definitions of compliance please see www.vishay.com/doc?99912 QUICK REFERENCE DATA Sensor type ROTATIONAL, single turn wirewound Output type Output by turrets Market appliance Professional Dimensions 1 ¾" (44.5 mm) click logo to get started Available Models ELECTRICAL SPECIFICATIONS PARAMETER Total Resistance Tolerance: 50  and above Below 50  STANDARD 5  to 50 k ± 3 % ± 5 % SPECIAL 65 k ± 1 % ± 3 % Absolute Minimum Resistance Linear ity x total resistance or 0.5 , whichever is greater End Voltage Linearity x total applied voltage for total resistance above 20 , 2.0 % of total applied voltage for 20  and below Linearity (independent) 5  to 50  50  to 500  500  to 2 k 2 k and above STANDARD ± 1.00 % ± 0.50 % ± 0.25 % ± 0.25 % BEST PRACTICAL ± 0.50 % ± 0.35 % ± 0.20 % ± 0.15 % Noise 100  ENR Electrical Angle 350° ± 2° Power Rating:  Section 1: 3.5 W Additional Sections 70 °C ambient derated to zero at 125 °C 75 % of the rating of section 1 (2.6 W at 70 °C) Insulation Resistance 1000 M  minimum, 500 V DC Dielectric Strength 1000 V RMS, 60 Hz Taps (extra) From 1 up to 19 (max.) Phasing (CCW end points) Additional sections phased to section 1 within ± 1°

www.vishay.com Vishay Spectrol Revision: 07-Dec-2018 2 Document Number: 57052 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)

ORDERING INFORMATION

MODEL STYLE GANGS OHMIC VALUE GANGS No 1 OHMIC VALUE GANGS No 2 SPECIAL REQUEST

202 B : bushing

S: servo C: screw 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 xxxx PART NUMBER DESCRIPTION (for information only) 202- 1 1 503 203 xxxx MODEL STYLE GANGS OHMIC VALUE GANGS No 1 OHMIC VALUE GANGS No 2 SPECIAL B: 1 S: 2 C: 3 SERVO MOUNT: 202S/202-2 BUSHING MOUNT: 202B/202-1 0.831 (21.11) 0.625 (15.88) ± 0.010 ± 0.031 0.073 MIN. (1.85) 0.093 (2.36) 0.062 (1.57) Ø 1.750 (44.45) Ø 1.5620 MTG. (39.67) ± 0.015 + 0.0000 - 0.0005 Ø 0.2497 (6.34) + 0.0000 - 0.0003 MTG. FACEØ 1.562 MAX. (39.67) Ø 1.750 (44.45) ± 0.015 0.340 MIN. (8.64) ± 0.010 ± 0.031 0.375 (9.52) ± 0.015 0.062 (1.57)0.239 MIN. (6.07) MTG. FACE 3/8 - 32 UNEF-2A ± 0.015 Ø 0.4062 MGT. (10.32) + 0.0000 - 0.0010 Ø 0.2497 (6.34) + 0.0000 - 0.0003 0.705 (17.91) 0.875 (22.22) Ø 1.750 (44.45) 1 ADD 0.500 ± 0.002 FOR EACH ADDITIONAL SECTION (12.70) TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° SCREW MOUNT: 202C/202-3 ± 0.031 0.625 (15.88) 0.800 (20.32) Ø 0.7500 MTG. (19.05) + 0.000 - 0.0005Ø 0.2497 (6.34) + 0.000 - 0.0003 Ø 1.750 (44.45) ± 0.015 MTG. FACE 0.312 MIN. (7.92) 16°, 20° TYP. 45° ± 5° 1.075 R (27.30) MAX. 1.015 (25.75) MAX. 6.32 UNC-2BX 187 ± 0.015 DEEP (4.75) 2 PLACES ON 1.000 Ø B.C. (25.40) 0.062 (1.57) ± 0.010 CW SCHEMATIC

www.vishay.com Vishay Spectrol Revision: 07-Dec-2018 3 Document Number: 57052 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. Additional cups 75 % of values shown) Note

  • Nothing stated herein shall be construed as a guarantee of quality or durability. MECHANICAL SPECIFICATIONS PARAMETER Mechanical Rotation 360° (continuous) Bearing Type Screw and servo mount: Ball bearing Bushing mount: Sleeve bearing Ganging 6 sections maximum, terminal alignment, added sections, within ± 10° of section 1 terminals Torque (maximums)

1 Section Servo and Screw Types

Bushing, 1 Section Each Additional Section STARTING 0.7 oz. - in (50.40 g - cm) 1.0 oz. - in (72.00 g - cm) 0.4 oz. - in (28.80 g - cm) RUNNING 0.4 oz. - in (28.80 g - cm) 0.7 oz. - in (50.40 g - cm) 0.3 oz. - in (21.60 g - cm) Mechanical Runouts (maximums): Shaft Runout (TIR/in) Pilot Dia. Runout (TIR) Lateral Runout (TIR) Shaft End Play Shaft Radial Play SERVO AND SCREW 0.002" (0.05 cm) 0.002" (0.05 cm) 0.003" (0.08 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) Moment of Inertia 1.0 g - cm 2 per section maximum Weight (maximums): Single Section Each Additional Section 3.0 oz. (85.05 g) 1.0 oz. (28.35 g) MATERIAL SPECIFICATIONS Housing and Lids Aluminum, anodized Shaft And Clamp Rings Stainless steel, non-magnetic non-passivated Terminals Brass, plated for solderability Bushing Mount Hardware Lockwasher Internal Tooth: Panel Nut: Steel, nickel plated Brass, nickel plated MARKING Unit Identification Units shall be marked with Vishay Spectrol name, model number and data code on each section, resistance, resistance tolerance, linearity and terminal identification. Example of a marking for a standard part: 202-22103 102 AMBIENT TEMPERATURE IN °C RATED POWER IN W 20 40 60 80 100 120 140 160 SPECIAL 150 °C STANDARD 125 °C ENVIRONMENTAL SPECIFICATIONS Vibration 15 g thru 2000 Hz Shock 50 g Salt Spray 96 h Rotational Life 1 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) TEMP. COEF. (ppm/°C) 5 0.320 0.016 835 4.19 800 10 0.240 0.024 591 5.92 800 20 0.190 0.038 418 8.37 800 50 0.212 0.106 264 13.3 20 100 0.181 0.181 187 18.7 20 200 0.150 0.300 133 26.3 20 500 0.115 0.575 83.4 42.0 20 1K 0.103 1.03 59.1 59.2 20 2K 0.094 1.89 41.8 83.7 20 5K 0.068 3.42 26.4 133 20 10K 0.059 5.91 18.7 187 20 20K 0.048 9.52 13.2 265 20 50K 0.044 22.0 8.37 422 20

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