Model 502 Vishay Spectrol 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 Ω to 100 kΩ • Dual gang configuration • Improved linearity available • Long life > 2 million shaft revolutions ELECTRICAL SPECIFICATIONS PARAMETER Total Resistance Tolerance: 100 Ω and above Below 100 Ω STANDARD 15 Ω to 100 kΩ ±3% ±5% SPECIAL 15 Ω to 150 kΩ ±1% ±3% STANDARD ± 0.25 % ± 0.25 % ± 0.25 % ± 0.25 % BEST PRACTICAL ± 0.15 % ± 0.10 % ± 0.075 % ± 0.05 % Linearity (Independent) 15 Ω to 50 Ω 50 Ω to 1 kΩ 1 kΩ to 5 kΩ 5 kΩ and Above 100 Ω ENR Noise 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 MΩ minimum 500 VDC Dielectric Strength 1000 VRMS, 60 Hz Linearity x total resistance or 0.5 Ω whichever is greater Absolute Minimum Resistance Linearity x total applied voltage for total resistance above 20 Ω, 2.0 % of applied voltage for 20 Ω and below End Voltage 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 data sheet with a variety of alternate characteristics, as shown above. For most rapid service on your order, please state: 502 MODEL S 2 STYLE NUMBER OF SECTIONS TOTAL RESISTANCE OF EACH SECTION 1 or 2 Beginning with the section nearest the mounting end B: Bushing S: Servo 10K 20K BO1 PACKAGING Box of 1 piece Other characteristics will be standard as described on this data sheet. 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 SECTIONS OHMIC VALUE SECTION No 1 OHMIC VALUE SECTION No 2 PACKAGING www.vishay.com 120 For technical questions, contact: [email protected] Document Number: 57064 Revision: 12-Jul-07 Model 502 7/ Vishay Spectrol 8" (22.2 mm) Ten-Turn Wirewound Upper Grade Precision Potentiometer DIMENSIONS in inches (millimeters) BUSHING MOUNT 1 ± 0.010 ± 0.031 1.448 (36.78) 0.687 (17.45) 0.168 MIN. (4.27) 2 ± 0.015 0.312 (7.92) 3 1 45° + 0.0000 ± 10° Ø 0.1248 TYP. - 0.0003 (3.17) ± 0.015 0.172 TYP. (4.37) ± 0.015 Ø 0.875 (22.22) 0.594 R (15.09) MAX. + 0.000 Ø 0.281 - 0.001 (7.14) ± 0.015 0.062 (1.57) MTG. FACE 1/ 4 - 32 UNEF 2A SERVO MOUNT 1 ± 0.010 1.536 (39.01) ± 0.031 0.375 (9.52) 0.057 MIN. (1.45) 0.257 MIN. (6.53) 0.062 (1.57) 0.062 (1.57) 2 1 3 + 0.0000 - 0.0005 1 Ø 0.7500 (19.05) ADD 1.282 ± 0.002 (32.56) FOR EACH ADDITIONAL SECTION TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° 2 Ø 0.875 (22.22) CW 3 1 SCHEMATIC 0.750 MAX. (19.05) MTG. FACE MECHANICAL SPECIFICATIONS PARAMETER Rotation Bearing Type Torque (Maximums) Servo Section 1 Bushing Section 1 Each Additional Section Mechanical Runout (Maximums): Shaft Runout (TIR) Pilot Dia. Runout (TIR) Lateral Runout (TIR) Shaft End Play Shaft Radial Play Weight: Single Section Each Additional Section Stop Strength Ganging Moment of Inertia Document Number: 57064 Revision: 12-Jul-07 3600° + 10° - 0° SERVO Ball bearing BUSHING MOUNT Sleeve bearing 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) 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) 1.20 oz. (34.0 g) 0.80 oz. (22.7 g) 100 oz. - in, static (7.2 kg - cm) 2 sections, terminal alignment, added sections, within ± 10° of section 1 terminals 0.45 g - cm2 per section maximum For technical questions, contact: [email protected] www.vishay.com 121 Model 502 7/ " 8 Vishay Spectrol (22.2 mm) Ten-Turn Wirewound Upper Grade Precision Potentiometer MATERIAL SPECIFICATIONS Housing ENVIRONMENTAL SPECIFICATIONS 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 6 RATED POWER IN W 5 4 3 2 SPECIAL 150 °C STANDARD 125 °C 20 40 60 80 100 120 140 AMBIENT TEMPERATURE IN °C www.vishay.com 122 50 g Salt Spray 96 h 2 million shaft revolutions 900 h Operating Temperature Range - 55 °C to + 125 °C RESISTANCE ELEMENT DATA (Ratings for cup No. 1. Additional cups 75 % of values shown) 0 Shock Load Life Units shall be marked with Vishay spectrol name and model no, resistance and resistance tolerance, linearity, terminal identification, and date code POWER RATING CHART 1 15 g thru 2000 CPS Rotational Life MARKING Unit Identification Vibration 160 MAXIMUM MAXIMUM CURRENT VOLTAGE ACROSS AT 70 °C COIL AMBIENT (V) (mA) WIRE TEMP. COEF. (ppm/°C) STANDARD RESISTANCE VALUES (Ω) RESOLUTION (%) 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 For technical questions, contact: [email protected] OHMS PER TURN Document Number: 57064 Revision: 12-Jul-07 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. 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 herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay 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. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1