MODEL 84 1 1/4 Square Multiturn Surface Mount Cermet Trimming Potentiometer ELECTRICAL Standard Resistance Range, Ohms 10 to 1Meg Standard Resistance Tolerance 10% Input Voltage, Maximum 200 Vdc 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 900 Vrms 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 (<100 Ohms = 250ppm/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 100 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 150C (2% RT, 2% VR) Rotational Life 200 cycles (3% RT) Load Life at 0.25 Watts 1,000 hours at 85C (2% RT) Resistance to Solder Heat 260C for 10 sec. (1% RT) Temperature Exposure, Maximum 215C for 3 min. (1% RT) MECHANICAL Mechanical Stops Clutch action, both ends Torque, Starting Maximum 3 oz.-in. (0.021 N-m) Weight, Nominal .014 oz. (.40 grams) Fluorinert is a registered trademark of 3M Company. Specifications subject to change without notice. Model 84 1-73~ ~ ~ TOP ADJUSTMENT (Inch/mm) SIDE ADJUSTMENT (Inch/mm) Model 84W Model 84X .050 .010 .040 .010 1.27 0.25 1.02 0.25 Standard Marking .170 .015 .040 .010 On This Surface 4.32 0.38 1.02 0.25 Standard Marking On This Surface C L .250 .020 6.35 0.51 .050 .010 1.27 0.25 .040 .015 1.02 0.38 (1) (2) (3) Metal Adjustment Screw .070 .005 With 1.78 0.13 .295 .015 .020 Min. Wide x 7.49 0.38 0.51 .040 .015 3x .020 1.02 0.38 Min. Depth 0.51 (1) (2) (3) .005 .100 Min. 0.13 2.54 .040 .015 .100 3x Terminal Pins: 1.02 0.38 2.54 Solderable C L .018 .002 3x Recommended PCB Layout - Models 84W and 84X 0.46 .051 .040 .015 .070 .015 3x 3x 1.02 0.38 1.78 0.38 Housing: Molded Plastic .100 .110 .015 (2) 3x 2.54 2.80 0.38 .100 .295 .005 (1) (3) 2.54 7.49 0.13 C L .100 2.54 Note: Model 84W dimensions applicable to all models .100 except as noted. 2.54 SIDE ADJUSTMENT (Inch/mm) Model 84P Recommend PCB Layout - Model 84P Standard Marking .105 .015 3x .125 .015 On This Surface 2.67 0.38 3x .100 3.18 0.38 .100 2.54 2.54 (3) (2) (3) .210 .015 C L .040 .010 5.33 0.38 (1) (2) 1.02 0.25 .040 .015 (1) 3x 1.02 0.38 (1) (2) (3) .100 .100 .375 .015 .040 .015 3x 2.54 .250 .020 2.54 9.53 0.13 1.02 0.38 6.35 0.51 Model 84 1-74