Model 138 www.vishay.com Vishay Spectrol 1 5/16" (33.3 mm) Industrial Single Turn, Bushing Mount, Conductive Plastic Potentiometer FEATURES • Center tap available • Continuous rotation and mechanical stops both standard QUICK REFERENCE DATA • Suitable model for all types of industrial applications Sensor type Output type Market appliance • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 ROTATIONAL, conductive plastic Output by turrets Industrial 1 5/16" (33.3 mm) Dimensions ELECTRICAL SPECIFICATIONS PARAMETER MIL-PRF-39023 TEST PROCEDURES APPLY Ohmic Value Range STANDARD SPECIAL 1 k to 50 k 1 k to 50 k Tolerance Linearity (independent) ± 10 % ±5% STANDARD BEST PRACTICAL ± 0.5 % ± 0.25 % Output Smoothness 0.1 % maximum Power Rating 40 °C ambient 2W derated to zero at 125 °C Electrical Angle Continuous 345° ± 4° Stops 340° ± 5° Insulation Resistance 1000 M minimum at 500 VDC Dielectric Strength 1000 VRMS, 60 Hz Absolute Minimum Resistance 1.0 % of total resistance Minimum Voltage 0.5 % maximum Temperature Coefficient of Resistance ± 600 ppm/°C maximum MATERIAL SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS Housing Molded glass filled thermoplastic Vibration Rear Lid Glass filled thermoset plastic Shock 50 g Shaft Stainless steel, non-magnetic Salt Spray 48 h Terminals Brass, plated for solderability, non-passivated Rotational Life Mount Hardware Lockwasher Internal Tooth: Panel nut: Steel, nickel plated Brass, nickel plated 15 g thru 2000 Hz 2 million Shaft Revolutions Operating Temperature Range -55 °C to +125 °C Note • Nothing stated herein shall be construed as a guarantee of quality or durability. ORDERING INFORMATION/DESCRIPTION 138 B 0 0 20K BO10 MODEL BUSHING MOUNT MECHANICAL OPTIONS OTHER OPTIONAL FEATURES RESISTANCE CODE PACKAGING 0. Continuous 2. Stops 0. Standard (end taps) 1. Center tap (within 5° of electrical center) Box of 10 pieces Other characteristics will be standard as described on this specification sheet. If special characteristics are required such as special linearity tolerance, special resistance tolerance, non-linear functions, etc., please state these on your order. Revision: 26-Mar-15 Document Number: 57033 1 For technical questions, contact: [email protected] 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 Model 138 www.vishay.com Vishay Spectrol SAP PART NUMBERING GUIDELINES 138 B 2 1 103 B10 MODEL STYLE MECHANICAL OPTIONS FEATURES OHMIC VALUE PACKAGING With stops With center tap Box of 10 pieces DIMENSIONS in inches (millimeters) ± 0.031 MODEL 138B/138-... 0.875 (22.22) ± 0.015 0.625 (15.88) 60° 0.187 (4.75) ± 0.015 Ø 0.500 (12.70) BC ± 0.015 + 0.0000 - 0.0020 Ø 0.4062 MTG. (10.32) ± 0.015 0.375 (9.52) 0.032 (0.81) 0.062 (1.57) ± 0.010 + 0.0000 - 0.0003 Ø 0.2497 (6.34) 0.030 MAX. (0.76) 0.562 (14.27) ± 0.015 Ø 1.312 (33.32) 0.032 (0.81) 3/ 8 - 32 UNEF - 2A Ø 0.125 (3.18) 2 0.062 (1.57) MTG. SURFACE CW 3 1 TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° SCHEMATIC MECHANICAL SPECIFICATIONS PARAMETER Rotation 360° (continuous) 340° ± 5° stops Bearing Type Sleeve STARTING 1.0 oz. - in (72 g - cm) Torque (maximums) RUNNING 0.7 oz. - in (50.40 g - cm) Runouts (maximums) Shaft Runout (TIR) 0.002" (0.05 mm) Pilot Dia. Runout (TIR) 0.003" (0.08 mm) Lateral Runout (TIR) 0.005" (0.13 mm) Shaft End Play 0.008" (0.20 mm) Shaft Radial Play 0.003" (0.08 mm) Weight 1.0 oz. maximum (28.35 g) Stop Strength 8.0 in - lbs (9.21 kg - cm) (stops version only) POWER RATING CHART RATED POWER IN W 6.0 MARKING 5.0 4.0 Unit Identification 3.0 2.0 Units shall be marked with Vishay Spectrol name, model number, resistance and tolerance, linearity, terminal identification, and data code Applicable test procedures: MIL-R-39023 Example of a marking for a standard part: 138-2-0-502 1.0 0 20 40 60 80 100 120 140 AMBIENT TEMPERATURE IN °C Revision: 26-Mar-15 Document Number: 57033 2 For technical questions, contact: [email protected] 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 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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 in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21 conform to JEDEC JS709A standards. Revision: 02-Oct-12 1 Document Number: 91000