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308B120KBO1 Datasheet(PDF) 1 Page - Vishay Siliconix |
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308B120KBO1 Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 4 page 2" (50.8 mm) Single Turn Conductive Plastic Precision Potentiometer Model 308 Vishay Spectrol www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 57058 38 Revision: 22-Mar-07 FEATURES • Bushing mount and servo mount types available • Virtually infinite resolution • 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 RoHS COMPLIANT ELECTRICAL SPECIFICATIONS PARAMETER Total Resistance Standard Range 500 Ω to 100 kΩ Tolerance STANDARD ± 10 % SPECIAL ± 5 % Linearity (Independent) STANDARD ± 0.25 % SPECIAL ± 0.05 % Electrical Angle 350° ± 2° Power Rating Section 1 Additional Sections 2.0 W at 70 °C ambient derated to zero at 125 °C (400 VDC maximum) 75 % of the rating of section 1 Output Smoothness 0.1 % maximum Insulation Resistance 1000 M Ω minimum 500 V DC Dielectric Strength 1000 VRMS, 60 Hz Taps (Extra) Extra taps available as special Phasing Points at which output ratio is 0.5 aligned ± 1° (ref. to section 1) Temperature Coefficient of Resistance ± 400 ppm/°C maximum MATERIAL SPECIFICATIONS Housing and Lids Aluminum, anodized Shaft and Clamp Rings Stainless steel, non-magnetic non-passivated Terminals Brass, gold plated for solderability Bushing Mount Hardware Lockwasher Internal Tooth: Panel Nut: Steel, nickel plated Brass, nickel plated ENVIRONMENTAL SPECIFICATIONS Vibration 15 g thru 2000 Hz Shock 50 g Salt Spray 96 h Rotational Life Servo: 20 million shaft revolutions Bushing: 5 million shaft revolutions Load Life 900 h Temperature Range - 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 B 1 20K BO1 MODEL MOUNTING NUMBER OF SECTIONS TOTAL RESISTANCE OF EACH SECTION PACKAGING B: Bushing S: Servo Up to 6 Beginning with the section nearest the mounting end 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 S 1 203 B01 MODEL STYLE GANG NUMBER OHMIC VALUE GANG NO 1PACKAGING B: Bushing S: Servo From 1 up to 6 20K |
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