308S120KBO1

Model 308 Vishay Spectrol 2" (50.8 mm) Single Turn Conductive Plastic Precision Potentiometer FEATURES • • • • • Bushing mount and servo mount types available Virtually infinite resolution RoHS COMPLIANT Up to 6 sections available Rotational life exceeds 20 million shaft revolutions Co-Molded track and Multi-Finger wiper provide low noise signal • Large ohmic value range: 500 Ω to 100 kΩ ELECTRICAL SPECIFICATIONS PARAMETER Total Resistance Standard Range Tolerance Linearity (Independent) Electrical Angle Power Rating Section 1 Additional Sections Output Smoothness Insulation Resistance Dielectric Strength Taps (Extra) Phasing Temperature Coefficient of Resistance STANDARD ± 10 % STANDARD ± 0.25 % 350° ± 2° 2.0 W at 70 °C ambient derated to zero at 125 °C (400 VDC maximum) 75 % of the rating of section 1 0.1 % maximum 1000 MΩ minimum 500 VDC 1000 VRMS, 60 Hz Extra taps available as special Points at which output ratio is 0.5 aligned ± 1° (ref. to section 1) ± 400 ppm/°C maximum 500 Ω to 100 kΩ SPECIAL ±5% SPECIAL ± 0.05 % MATERIAL SPECIFICATIONS Housing and Lids Shaft and Clamp Rings Terminals Bushing Mount Hardware Lockwasher Internal Tooth: Panel Nut: Aluminum, anodized Stainless steel, non-magnetic non-passivated Brass, gold plated for solderability Steel, nickel plated Brass, nickel plated ENVIRONMENTAL SPECIFICATIONS Vibration Shock Salt Spray Rotational Life Load Life Temperature Range 15 g thru 2000 Hz 50 g 96 h Servo: 20 million shaft revolutions Bushing: 5 million shaft revolutions 900 h - 55 °C to + 125 °C ORDERING INFORMATION/DESCRIPTION The Model 308 can be ordered from this data sheet with a variety of alternate characteristics, as shown. For most rapid service on your order, please state: 308 MODEL B MOUNTING B: Bushing S: Servo 1 NUMBER OF SECTIONS Up to 6 20K TOTAL RESISTANCE OF EACH SECTION Beginning with the section nearest the mounting end 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 308 MODEL S STYLE B: Bushing S: Servo 1 GANG NUMBER From 1 up to 6 203 OHMIC VALUE GANG NO 1 20K B01 PACKAGING www.vishay.com 38 For technical questions, contact: sfer@vishay.com Document Number: 57058 Revision: 22-Mar-07 Model 308 2" (50.8 mm) Single Turn Conductive Plastic Precision Potentiometer DIMENSIONS in inches (millimeters) SERVO MOUNT: 308 S ± 0.010 Vishay Spectrol 1 0.340 MIN. (8.64) 0.093 (2.36) 0.831 (21.10) ± 0.031 0.625 (15.88) 0.073 MIN. (1.85) 15° TYP. ± 5° 45° 3 1 2 ± 0.015 + 0.0000 Ø 2.000 (50.80) Ø 1.812 MAX. (46.02) Ø 1.8750 - 0.0005 (47.62) Ø 2.000 (50.80) 1.200 R MAX. (30.48) MTG. FACE 0.062 (1.57) Ø 0.2497 - 0.0003 (6.34) + 0.0000 1.140 R MAX. (28.96) BUSHING MOUNT: 308 B ± 0.015 1 ± 0.031 0.705 (17.91) 0.239 MIN. (6.07) 0.875 (22.22) ± 0.010 0.375 (9.52) 0.062 (1.57) Ø 0.2497 (6.34) + 0.0000 - 0.0003 Ø 0.4062 (10.32) + 0.0000 - 0.0010 ± 0.015 Ø 1.375 (34.92) ± 0.015 Ø 2.000 (50.80) 2 1 CW 3 SCHEMATIC 0.010 (0.25) 3/ 8 - 32 UNEF - 2A MTG. FACE 1 ADD 0.500 ± 0.002 (12.70) FOR EACH ADDITIONAL SECTION TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° POWER RATING CHART (Ratings for cup No. 1. Additional cups 75 % of values shown) RATED POWER IN W RESISTANCE ELEMENT DATA RESISTANCE VALUES (Ω) 500 1K 2K 5K 10K 20K 50K 100K MAXIMUM VOLTAGE APPLICABLE (V) 32 45 71 100 141 224 316 350* 4 3 2 1 0 20 40 60 80 100 120 140 160 * Maximum voltage allowable AMBIENT TEMPERATURE IN °C Document Number: 57058 Revision: 22-Mar-07 For technical questions, contact: sfer@vishay.com www.vishay.com 39 Model 308 Vishay Spectrol 2" (50.8 mm) Single Turn Conductive Plastic Precision Potentiometer MECHANICAL SPECIFICATIONS PARAMETER Rotation Bearing Type Servo Mount: Bushing Mount: Ganging Torque (Maximums) Mounting Servo, 1 Section Bushing, 1 Section Each Additional Section Runouts (Maximums) Shaft (TIR/in) Pilot Dia. (TIR) Lateral (TIR) Shaft End Play Shaft Radial Play Moment of Inertia Weight Single Section Each Additional Section 360° (continuous) Ball bearing Sleeve bearing 6 sections maximum Terminal alignment, added sections, within ± 10° of section 1 terminals STARTING 1.0 oz. - in (72.00 g - cm) 1.7 oz. - in (122.40 g - cm) 0.6 oz. - in (43.20 g - cm) SERVO 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) 2.0 g - cm2 per section maximum 4.0 oz. (127.57 g) 1.2 oz. (34.02 g) RUNNING 0.5 oz. - in (36.00 g - cm) 1.0 oz. - in (72.00 g - cm) 0.4 oz. - in (28.80 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) MARKING Unit Identification Units shall be marked with Spectrol name, model no, and data code, and on each section, resistance, resistance tolerance, linearity and terminal identification www.vishay.com 40 For technical questions, contact: sfer@vishay.com Document Number: 57058 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