MODEL 64 1 1/4 Square Multiturn Cermet Trimming Potentiometer ELECTRICAL Standard Resistance Range, Ohms 10 to 1Meg Standard Resistance Tolerance 10% Input Voltage, Maximum 200Vdc or rms not to exceed power rating Slider Current, Maximum 100mA or within rated power, whichever is less Power Rating, Watts 0.25 at 85C derating to 0 at 150C End Resistance, Maximum 2 Ohms Actual Electrical Travel, Turns, Nominal 12 Dielectric Strength 900Vrms Insulation Resistance, Minimum 1,000 Megohms Resolution Essentially infinite Contact Resistance Variation, Maximum 1% or 1 Ohms, whichever is greater ENVIRONMENTAL Seal 85C Fluorinert (No Leaks) Temperature Coefficient, Maximum 100ppm/C Operating Temperature Range 65C to +150C Thermal Shock 5 cycles, 65C to +150C (1% RT, 1% VR) Moisture Resistance Ten 24 hour cycles (1% RT, IR 1,000 Megohms Min.) Shock, 6ms Sawtooth 100Gs (1% RT, 1% VR) Vibration 20Gs, 10 to 2,000 Hz (1% RT, 1% VR) High Temperature Exposure 250 hours at 125C (2% RT, 2% VR) Rotational Life 200 cycles (2% RT) Load Life at 0.25 Watts 1,000 hours at 85C (2% RT) Resistance to Solder Heat 260C for 10 sec. (1% RT) MECHANICAL Mechanical Stops Clutch action, both ends Torque, Starting Maximum 3 oz.-in. (0.021 N-m) Weight, Nominal .014 oz. (0.40 grams) Fluorinert is a registered trademark of 3M Company. Specifications subject to change without notice. Model 64 1-35TOP ADJUSTMENT (Inch/mm) Model 64W and 64Y .050 1.27 .165 .020 .040 1.02 4.19 0.51 .250 .020 Metal Adjustment Screw 6.35 .0.51 .070 .005 Dia. With Slot 1.78 0.13 Standard Marking On This Surface .020 .020 Min. Wide x Min. Deep 0.51 0.51 .040 1.02 .270 .020 6.86 0.51 .020 .172 Min. Min. 4.37 0.51 Terminal Pins (3) Solderable 12 3 .018 .002 0.46 .05 Note: Model 64W dimensions applicable to all models except as noted. Model 64Y Model 64W C L C L .10 .10 .10 .10 2.54 2.54 2.54 2.54 .02 .092 0.51 .10 2.34 2.54 Schematic Diagram This Surface STANDARD RESISTANCE VALUES, OHMS 10 100 1K 10K 50K 250K 20 200 2K 20K 100K 500K 50 500 5K 25K 200K 1Meg Model 64 1-36