Model 140, 142 Vishay Spectrol 1/2" (12.7mm) Single - Turn Wirewound Precision Potentiometer FEATURES * 50 to 20K * Bushing or Servo Model 142 Servo Mount Model 140 Bushing Mount ELECTRICAL SPECIFICATIONS PARAMETER STANDARD 50 to 20K Total Resistance 5% Tolerance Absolute Minimum Resistance Linearity x Total Resistance or 0.5, whichever is greater 1.0% Linearity (Independent) Noise 100 ENR Power Rating 2 watts at 40C ambient derating linearly to zero at 125C Insulation Resistance 1,000M min. 0.500VDC Dielectric Strength 1.000VRMS, 60 Hz Rotation 140 320 5 End Voltage 142 350 + 0 - 4 Linearity x total applied voltage for total resistance above 20; 2.0% of total applied voltage for 20 and below MATERIAL SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS Shaft Vibration Housing Rear Lid Terminals Mounting Hardware Lockwasher Internal Tooth: Panel nut: Stainless steel, non magnetic non-passivated Aluminum, anodized Molded glass filled thermoset plastic Brass, gold plated (Model 140 only) Steel, nickel plated. Brass, nickel plated Shock Salt Spray Rotational Life 20G thru 2000 Hz 50g 96 Hours 500,000 Shaft Revolutions Load Life Temperature Range 900 Hours - 55C to + 125C (operating) ORDERING INFORMATION This part number consists of four groups of digits. The first group is the Spectrol model number. The second digit describes the mechanical options available. The third digit describes the other optional features which can be supplied. The fourth group is the standard EIA resistance code. Example: 140 - 0 - 0 - 203 140 0 0 203 MODEL MECHANICAL OPTIONS OTHER OPTIONAL RESISTANCE CODE FEATURES Bushing 140 0. Stops, Slotted Shaft (std) 0. Standard Torque 2 = First Significant figure 1. Plain Shaft 1. Center Tap (10K max. Rt) 0 = Second significant figure 2. Shaft Lock 2. High Torque 3 = Number of zeros following 3. Continuous Rotation 3. Sealed Construction 4. Combination 1 & 2 4. Combination 1 & 2 5. Combination 1 & 3 5. Combination 1 & 3 6. Combination 2 & 3 6. Combination 2 & 3 7. Combination 1, 2, & 3 7. Combination 1, 2, & 3 Servo 142 0. Continuous Rotation, Plain Shaft (std.) 0. Standard Torque 1. Center Tap (10K max. Rt) Same as above Example: Part number 140-0-0-203 describes bushing mount 140 with stops, slotted shaft, standard torque and resistance of 20K Document Number: 57039 Revision 16-Jul-03 For technical questions, contact sfer@vishay.com www.vishay.com 55 Model 140, 142 Vishay Spectrol 1/2" (12.7mm) Single - Turn Wirewound Precision Potentiometer DIMENSIONS in inches (millimeters) 0.062 WIDE + 0.000 IMPERFECT THR'O AREA - 0.003 0.133 R (3.38) 120 TYP + 0.0000 - 0.0003 O 0.1248 (3.17) O 0.250 MTG (6.10) 1/4 - 32 UNEF - 2A THREAD O 0.500 (12.70) 0.187 (4.75) CW 0.056 (1.42) 0.152 (3.86) 0.305 (7.75) 0.500 (12.70) 0.015 0.031 (0.79) 0.312 (7.92) 0.010 0.700 (17.78) MTG FACE INTEGRAL SHAFT LOCK 0.031 (0.79) 0.218 O 0.062 (1.57) BUSHING MOUNT O 0.375 (9.52) 150 0.0005 0.062 (1.57) + 0.010 0.500 (12.70) 0.062 (1.57) 0.062 (1.57) 0.152 (3.86) O 0.500 (12.70) 0.625 (15.88) MTG FACE O 0.4370 MTG + 0.000 (11.10) - 0.0003 O 0.1248 (3.17) TOLERANCES: UNLESS OTHERWISE NOTED, DECIMALS 0.005, ANGLES 2 SERVO MOUNT 60 CENTER TAP AVAILABLE AS SPEC STANDARD FEATURE MECHANICAL SPECIFICATIONS PARAMETER Rotation 140 330 5 SLEEVE BEARING Bearing Type Torque (Maximums) Starting Running Traversing Dead Zone Weight Stop Strength Runouts (Maximum) Shaft (TIR) Pilot Dia (TIR) Lateral (TIR) Shaft End Play Shaft Radial Play 0.2 oz - in (14.40gm - cm) 0.075 oz - in (5.40gm - cm) 0.2 oz - in (14.40gm - cm) 0.05 oz - in (3.60gm - cm) - - Not applicable 0.20 oz - in (14.40gm - cm) 0.1 oz. maximum (2.84gm) 0.3 oz (8.50gm) maximum 5 in - lbs (5.76 kgm - cm) static (140 only) 140 142 0.002 in (0.05cm) 0.002 in (0.05cm) 0.002 in (0.05cm) 0.002 in (0.05cm) 0.003 in (0.08cm) 0.002 in (0.05cm) 0.006 in (0.15cm) 0.004 in (0.10cm) 0.003 in (0.08cm) 0.002 in (0.05cm) RATED POWER IN (WATTS) POWER RATING CHART RESISTANCE ELEMENT DATA STD RESISTANCE RESOVALUES LUTION () (%) 2 1 0 142 360 continuous BALL BEARING 0 20 40 60 80 100 120 140 160 AMBIENT TEMPERATURE IN (C) MARKING Unit Identification www.vishay.com 56 Units shall be marked with manufacturer's name, model number, resistance value & tolerance, circuit diagram, terminal identification, linearity & date code OHMS PER TURN MAXIMUM CURRENT AT 40C AMBIENT (mA) MAXIMUM VOLTAGE ACROSS COIL (V) WIRE TEMP. COEF. (ppm/C) 50 100 200 500 0.542 0.431 0.361 0.312 0.271 0.431 0.722 1.56 200.0 141.0 100.0 63.2 10.0 14.1 20.0 31.6 20 20 20 20 1K 2K 5K 10K 20K 0.255 0.197 0.170 0.147 0.105 2.55 3.94 8.50 14.7 21.0 44.7 31.6 20.0 14.1 10.0 44.7 63.2 100.0 141.0 200.0 20 20 20 20 20 For technical questions, contact sfer@vishay.com Document Number: 57039 Revision 16-Jul-03 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1