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| Model 852 Vishay Spectrol 1 13/16" (46 mm) Three Turn Wirewound Upper Grade Precision Potentiometer FEATURES * Large range of ohmic values: 15 to 50 k * Bushing mount, servo mount and srew mount version * Gangable up to 3 sections * Extra taps available upon request ELECTRICAL SPECIFICATIONS PARAMETER Total Resistance Tolerance: 100 and Above Below 100 Linearity (Independent) 15 to 1 k 1 k to 5 k 5 k to 25 k 25 k and Above Noise Electrical Rotation Power Rating Section 1 Additional Sections Insulation Resistance Dielectric Strength Absolute Minimum, Resistance End Voltage Phasing (CCW End Points) Taps (Extra) STANDARD 15 to 50 k 3% 5% STANDARD 0.25 % 0.25 % 0.25 % 0.25 % 100 ENR 1080 + 4 - 0 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) 1000 M minimum, 500 VDC 1000 VRMS, 60 Hz Linearity x total resistance or 0.5 , whichever is greater Linearity x total applied voltage for total resistance above 20 , 2.0 % of total applied voltage for 20 and below Additional sections phased to section 1 within 1 Available as special, standard tolerance 1 SPECIAL 150 k 1% 3% SPECIAL 0.15 % 0.10 % 0.075 % 0.05 % ORDERING INFORMATION/DESCRIPTION The Model 852 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: 852 MODEL C MOUNTING B: Bushing S: Servo C: Screw 1 NUMBER OF SECTIONS From 1 up to 3 max. 50K RESISTANCE OF EACH SECTION Beginning with the section nearest the mounting end BO1 PACKAGING Box of 1 piece SAP PART NUMBERING GUIDELINES 852 MODEL C STYLE 1 NUMBER OF SECTIONS 503 OHMIC VALUE SECTION NO 1 B01 PACKAGING www.vishay.com 138 For technical questions, contact: sfer@vishay.com Document Number: 57074 Revision: 22-Mar-07 Model 852 1 13/16" (46 mm) Three Turn Wirewound Upper Grade Precision Potentiometer DIMENSIONS in inches (millimeters) SERVO MOUNT 1.284 (32.61) 0.301 MIN. (7.64) 21 3 + 0.000 - 0.001 0.015 0.010 Vishay Spectrol BUSHING MOUNT 0.625 (15.88) 0.031 0.031 0.812 (20.62) 0.015 O 0.2497 (6.34) + 0.0000 TYP. - 0.0003 0.219 TYP. (5.56) 0.312 (7.92) 0.062 (1.57) 0.015 + 0.0000 - 0.0010 O 1.875 (47.62) O 2.000 (50.80) O 0.4062 (10.32) O 1.812 (46.02) 0.562 (14.27) 0.015 0.093 (2.36) MTG. FACE 0.062 (1.57) 0.073 MIN. (1.85) 0.062 (1.57) MTG. FACE 3/ 8 - 32 UNEF - 2A O 0.125 (3.18) SCREW MOUNT 45 10 2 1 O 0.7500 - 0.0005 (19.05) + 0.0000 CW 3 0.015 SCHEMATIC MTG. FACE 0.062 (1.57) 1.062 R MAX. (26.97) 1 8 - 32 UNC - 2B 0.156 DEEP (3.96) 3 HOLES EQUALLY SPACED ON A 1.250 O (31.75) B.C. TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS 0.005 ANGLES 2 ADD 0.992 0.010 (25.20) FOR EACH ADDITIONAL SECTION MECHANICAL SPECIFICATIONS PARAMETER Rotation Bearing Type Torque (Maximums) Servo or Screw 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 Weight (Maximums) Single Section Each Additional Section Stop Strength Ganging Moment of Inertia SERVO Ball bearing STARTING 1.20 oz. - in (86.4 g - cm) 1.75 oz. - in (126.0 g - cm) 0.80 oz. - in (57.6 g - cm) SERVO/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) 3.5 oz. (99.2 g) 2.7 oz. (76.5 g) 1000 oz. - in, static (72 kg - cm) 3 sections maximum, terminal alignment, added sections within 10 of section 1 terminals 5.5 g - cm2 per section maximum 1080 + 10 - 0 SCREW Ball bearing BUSHING Sleeve bearing RUNNING 0.80 oz. - in (57.6 g - cm) 1.25 oz. - in (90.0 g - cm) 0.60 oz. - cm (43.2 g - 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) Document Number: 57074 Revision: 22-Mar-07 For technical questions, contact: sfer@vishay.com www.vishay.com 139 Model 852 Vishay Spectrol 1 13/16" (46 mm) Three Turn Wirewound Upper Grade Precision Potentiometer ENVIRONMENTAL SPECIFICATIONS Vibration Shock Salt Spray Rotational Life Load Life Units shall be marked with Spectrol name and model No, resistance and resistance tolerance, linearity, terminal identification and date code Operating Temperature Range 15 g thru 2000 CPS 50 g 96 h 600 000 shaft revolutions 900 h - 55 C to + 125 C MATERIAL SPECIFICATIONS Housing Lids Shaft Terminals Clamp Ring Bushing Mount Hardware Lockwasher Internal Tooth: Panel Nut: Glass filled, thermoset plastic Aluminum, anodized Stainless steel, non-magnetic non-passivated Brass, plated for solderability Stainless steel Steel, nickel plated Brass nickel plated MARKING Unit Identification POWER RATING CHART (Ratings for cup NO 1. Additional cups 75 % of values shown) 6 RESISTANCE ELEMENT DATA STANDARD RESISTANCE VALUES () 20 RESOLUTION (%) 0.094 0.074 0.071 0.072 0.064 0.050 0.047 0.035 0.029 0.024 0.017 0.015 0.013 OHMS PER TURN 0.019 0.037 0.071 0.145 0.320 0.500 0.948 1.733 2.923 4.797 8.313 14.535 19.987 MAXIMUM MAXIMUM WIRE CURRENT VOLTAGE TEMP. ACROSS AT 70 C COEF. COIL AMBIENT (ppm/C) (V) (mA) 316 200 141 100 63.2 44.7 31.6 20.0 14.1 10.0 6.32 4.47 3.65 6.33 10.0 14.2 20.0 31.6 44.7 63.3 100 142 200 316 447 548 800 800 180 20 20 20 20 20 20 20 20 20 20 RATED POWER IN W 5 4 3 2 1 0 20 STANDARD 125 C 40 60 80 100 120 140 160 SPECIAL 150 C 50 100 200 500 1K 2K 5K 10K 20K 50K 100K 150K AMBIENT TEMPERATURE IN C www.vishay.com 140 For technical questions, contact: sfer@vishay.com Document Number: 57074 Revision: 22-Mar-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 |
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