Spectrol Features • • • • • Permanickel contact Stainless steel 1/4” diameter shaft Gold plated terminals Internal tracking surfaces gold plated Precision winding with excellent linearity 535 Series Potentiometer − 1.5 Watt, 7/8” round case, 1/4” dia. shaft, 5 turn, precision wirewound P12 .750 (19.05) L .200 (5.08) Min 1 3 2 .625 (15.88) R Max 30° .312 (7.92) .062 (1.57) .2497 (6.34) 3/8−32 UNEF−2A 2 Wiper 1 Spectrol No. NTE Part No. Value (Ohms) Shaft Length Diag No. 535−1−1−101 502−0145 100 7/8” P12 535−1−1−201 502−0146 200 7/8” P12 535−1−1−501 502−0147 500 7/8” P12 535−1−1−102 502−0148 1K 7/8” P12 535−1−1−202 502−0149 2K 7/8” P12 535−1−1−502 502−0150 5K 7/8” P12 535−1−1−103 502−0151 10K 7/8” P12 535−1−1−203 502−0152 20K 7/8” P12 535−1−1−503 502−0153 50K 7/8” P12 Resistance Element Data Max Current @ 70°C Ambient (mA) Max Voltage Across Coil (Volts) .0746 122.00 12.2 .061 .1220 86.60 17.3 500 .049 .2459 54.70 27.4 1K .041 .4113 38.70 38.7 2K .031 .6331 27.40 54.8 5K .034 1.7230 17.30 86.6 10K .030 3.0160 12.20 122.0 20K .020 3.9910 8.66 173.0 50K .015 7.4560 5.47 274.0 Resistance Value (Ohms) Resolution (%) 100 .075 200 40 Ohms per Turn .875 (22.22) Dia 3 Clockwise L = Shaft Length (See Table) Specifications Electrical Resistance Range: 50 Ω to 50K Ω Resistance Tolerance: ±5% Linearity (independent): ±0.25% Noise: 100 Ω ENR Rotation: 1800° +10°, −0° Power Rating: 1.5 Watt @ 70°C derated to 0 Watts @ 125°C Insulation Resistance: 1000 Meg Ω min, 500VDC Dielectric Strength: 1000V RMS min 50Hz Absolute Minimum Resistance: Not to exceed linearity x total resistance or 1Ω, whichever is greater Temperature Coefficient of Resistance: 20ppm/°C (wire only) End Voltage: 0.25% of total applied voltage, max Mechanical Bearing Type Bushing: Sleeve bearing Resistance Element: See Table Rotation: 1800° +10°, −0° Starting Torque (maximum): 50 gm−cms (0.7 oz in) Stop Strength (static): 5.4 Kgm−cm (75 oz in) Rotation Life: 500,000 shaft revolutions Environmental Operating Temperature: −55°C to +125°C Load Life: 900 hr. NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com