Model 702 Vishay Spectrol 7/ 8" (22.2 mm) Single Turn Wirewound Precision Potentiometer FEATURES • Large range of ohmic values: from 5 Ω up to 100 kΩ RoHS • Bushing mount or servo mount types are available COMPLIANT • Extra taps upon request • Gangable up to 6 sections ELECTRICAL SPECIFICATIONS PARAMETER Total Resistance: (Bushing 91 kΩ max.) Tolerance: 20 Ω and above Below 20 Ω STANDARD 5 Ω to 20 kΩ SPECIAL 5 Ω to 100 kΩ ±3% ±5% ±1% ±3% 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 total applied voltage for 20 Ω and below End Voltage BEST PRACTICAL ± 0.75 % ± 0.50 % ± 0.35 % ± 0.25 % STANDARD ± 1.0 % ± 1.0 % ± 0.5 % ± 0.5 % Linearity (Independent) 5 Ω to 100 Ω 100 Ω to 500 Ω 500 Ω to 5 kΩ 5 kΩ and Above 100 Ω ENR Noise Electrical Angle 350° ± 2° Power Rating Section 1 Additional Sections 1.25 W at 70 °C ambient derated to zero at 125 °C 75 % of the rating of section 1 (0.94 W at 70 °C) Insulation Resistance 1000 MΩ minimum 500 VDC Dielectric Strength 1000 VRMS, 60 Hz Taps (Extra) 9 available as special, standard tolerance ± 2° Phasing (CCW End Points) Additional sections phased to section 1 within ± 1° ORDERING INFORMATION/DESCRIPTION The Model 702 can be ordered from this data sheet with a variety of alternate characteristics, as shown. For most rapid service on your order, please state: 702 B 1 20K BO1 MODEL MOUNTING TYPE NUMBER OF SECTIONS OHMIC VALUE PACKAGING B: Bushing S: Servo From 1 up to 6 sections (max.) 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 702 S 2 050 100 B01 MODEL MOUNTING TYPE NUMBER OF SECTIONS OHMIC VALUE OHMIC VALUE PACKAGING Section NO 1 050 = 5 Ω Section NO 2 100 = 10 Ω Box of 1 piece S: Servo www.vishay.com 112 For technical questions, contact: [email protected] Document Number: 57069 Revision: 12-Jul-07 Model 702 7/ 8" Vishay Spectrol (22.2 mm) Single Turn Wirewound Precision Potentiometer DIMENSIONS in inches (millimeters) ± 0.010 0.687 (17.45) 1 BUSHING MOUNT: 702B ± 0.031 0.500 (12.70) 0.308 MIN. TYP (7.82) Ø 0.4062 MTG.- 0.0010 (10.32) 0.062 (1.57) 3/ 8 30° TYP. 1 2 + 0.0000 Ø 0.1248 - 0.0003 (3.17) Ø 0.875 (22.22) MTG. FACE 3 + 0.0000 0.250 (6.35) ± 0.015 - 32 UNEF - 2A ± 0.010 0.687 (17.45) 1 R 0.640 (16.26) MAX. ± 0.031 0.500 (12.70) 0.062 (1.57) 0.062 (1.57) 0.062 (1.57) SERVO MOUNT: 702S + 0.0000 Ø 0.7500 - 0.0005 (19.05) ± 0.015 2 CW 0.875 (22.22) 3 1 SCHEMATIC 1 Ø 0.875 (22.22) + 0.0000 Ø 0.750 MAX. (19.05) MTG. FACE ADD 0.500 (12.70) ± 0.002 FOR EACH ADDITIONAL SECTION Ø 0.1248 - 0.0003 (3.17) TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° MECHANICAL SPECIFICATIONS PARAMETER Rotation Bearing Type Ganging Torque (Maximum) Servo Section 1 Bushing Section 1 Each Additional Section Mechanical Runouts (Maximums): Shaft Runout (TIR/In) Pilot Dia. Runout (TIR) Lateral Runout (TIR) Shaft End Play Shaft Radial Play Moment of Inertia Weight: Single Section Each Additional Section Document Number: 57069 Revision: 12-Jul-07 360° continuous SERVO Ball bearing BUSHING Sleeve bearing 6 sections maximum Terminal alignment, added sections within ± 10° of section 1 terminals STARTING 0.10 oz. - in (7.20 g - cm) 0.25 oz. - in (18.00 g - cm) 0.10 oz. - in (7.20 g - cm) RUNNING 0.085 oz. - in (6.12 g - cm) 0.20 oz. - in (14.40 g - cm) 0.075 oz. - in (5.40 g - cm) SERVO BUSHING 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) 0.002" (0.05 cm) 0.002" (0.05 cm) 0.005" (0.13 cm) 0.005" (0.13 cm) 0.004" (0.10 cm) 0.12 g - cm2 per section maximum 0.6 oz. (17.01 g) 0.2 oz. (5.67 g) For technical questions, contact: [email protected] www.vishay.com 113 Model 702 7/ " 8 Vishay Spectrol (22.2 mm) Single Turn Wirewound Precision Potentiometer MATERIAL SPECIFICATIONS Housing and Lids ENVIRONMENTAL SPECIFICATIONS Aluminum, anodized Shaft 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 RATED POWER IN W 3 2 1.5 SPECIAL (150 °C) STANDARD (125 °C) 40 60 80 100 120 140 AMBIENT TEMPERATURE IN °C www.vishay.com 114 Shock 50 g Salt Spray 96 h Rotational Life 1 million shaft revolutions 900 h Operating Temperature Range: - 55 °C + 125 °C RESISTANCE ELEMENT DATA (Ratings for cup No. 1. Additional cups 75 % of values shown) 0 20 15 g thru 2000 CPS Load Life Units shall be marked with Vishay Spectrol name, model no and date code, and on each section: resistance, resistance tolerance, linearity and terminal identification POWER RATING CHART 1 Vibration 160 STANDARD RESISTANCE VALUES (Ω) RESOLUTION (%) OHMS PER TURN MAXIMUM MAXIMUM WIRE CURRENT VOLTAGE TEMP. AT 70 °C ACROSS COEF. COIL AMBIENT (ppm/°C) (V) (mA) 5 0.460 0.023 500 2.50 800 10 0.378 0.038 354 3.54 800 20 0.374 0.075 250 5.00 180 50 0.300 0.150 158 7.90 180 100 0.271 0.271 112 11.2 20 200 0.235 0.478 79.1 15.8 20 500 0.206 1.03 50.0 25.0 20 1K 0.156 1.56 35.4 35.4 20 2K 0.127 2.55 25.0 50.0 20 5K 0.101 5.07 15.8 79.0 20 10K 0.95 8.50 11.2 112.0 20 20K 0.90 17.9 7.90 158.0 20 50K 0.75 37.9 5.00 250.0 20 100K 0.65 64.5 3.54 354.0 20 For technical questions, contact: [email protected] Document Number: 57069 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