78PR10KLF BITECH | Alldatasheet
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Technical content
Standard Resistance Range, Ohms 10 to 2Meg Standard Resistance Tolerance ±10% (<100 Ohms = ±20%) Input Voltage, Maximum 300 Vdc or rms not to exceed power rating Slider Current, Maximum 100mA or within rated power, whichever is less Power Rating, Watts 1.0 at 70°C derating to 0 at 125°C End Resistance, Maximum 2 Ohms Actual Electrical Travel, Turns, Nominal 22 Dielectric Strength 500 Vrms Insulation Resistance, Minimum 1,000 Megohms Resolution Essentially infinite Contact Resistance Variation, Maximum 1% or 1 Ohm, whichever is greater ENVIRONMENTAL Seal 85°C Fluorinert® (No Leaks) Temperature Coefficient, Maximum ±100ppm/°C Operating Temperature Range –55°C to +125°C Thermal Shock 5 cycles, –55°C to +125°C (1% ∆RT, 1% ∆VR) Moisture Resistance Ten 24 hour cycles (1% ∆RT, IR 1,000 Megohms Min.) Shock, 6ms Sawtooth 100G’s (1% ∆RT, 1% ∆VR) Vibration 20G’s, 10 to 2,000 Hz (1% ∆RT, 1% ∆VR) High Temperature Exposure 250 hours at 125°C (2% ∆RT, 2% ∆VR) Rotational Life 200 cycles (3% ∆RT) Load Life at 0.5 Watts 1,000 hours at 70°C (2% ∆RT) Resistance to Solder Heat 260°C for 10 sec. (1% ∆RT) MECHANICAL Mechanical Stops Clutch Action, both ends Torque, Starting Maximum 5oz.-in. (0.035 N-m) Weight, Nominal .09 oz. (2.6 grams) MODEL 78 1-1/4” Rectangular Multiturn Cermet Trimming Potentiometer Fluorinert® is a registered trademark of 3M Company. Specifications subject to change without notice.
1.78 Housing Molded Plastic .105 2.667 .32 8.13 .135 3.429 .30 7.62 .70 17.78 1.25 31.75 1.000 ± .005 25.400 ± 0.127 .125 ± .005 3.175 ± 0.127 .50 ± .03 12.70 ± 0.76 .195 ± .005 4.953 ± 0.127
3 Terminals Pins
Dia. .260 ± .015 6.604 ± 0.381 .015 ± .003 0.127 ± 0.076 .093 ± .005 2.362 ± 0.127 I.D.
2 Mounting Holes
Model No. & Resistance Value Marked On This Surface .10 2.54 .05 1.27 0.711 ± 0.076 Model 78P .062/1.575 Max. Meniscus 3 Electrical Leads – 6/152 Min. Length No. 30 AWG Teflon Insulated Stranded Wire Yellow (1) Red (2) Green (3) Model 78L Dia..30 ± .02 7.62 ± 0.51 .26 ± .02 17.78 ± 0.51 .156 ± .031 3.962 ± 0.787 (3 Places) .10 ± .02 2.54 ± 0.51 .05 ± .02 1.27 ± 0.51 .028 ± .003 0.711 ± 0.075 .187 ± .031 4.750 ± 0.787 (1) Dia. (2) (3) Model 78S SIDE ADJUSTMENT (Inch/mm) Note: Model 78P dimensions applicable to all other models except as noted.
8.738 ± 0.787 .250 ± .015 6.350 ± 0.381 1.344 34.138 12-28 UNF-2A Thread Max.0.94 2.388 Max. Model 78SBW (Adapter Pre-Assembled with Trimmer) .250 ± .015 6.350 ± 0.381 1.344 34.138 12-28 UNF-2A Thread Max.0.94 2.388 Max. Model 78LBW (Adapter Pre-Assembled with Trimmer) .125 ± .005 3.175 ± 0.127 Metal Bushing Mount Brass-Nickel Plated Use .22/5.613 Dia. Min. Mounting Hole Lock Washer, Panel Nut, Sealing Washer & Mounting Screws Provided Mounting Surface Dia. Hole 1.56 3.962.312 ± .015 7.925 ± 0.381 Max. .437 11.100Max. Model 56BW (Adapter Only) PANEL MOUNT ADAPTER (Inch/mm)
(1) (2) (3) CW NOTES mm INCH Metric equivalents, based on 1 inch = 25.4mm are rounded to the same number of significant figures as in the original English units and are provided for general information only. Tolerances unless otherwise specified: Linear = ± .01 inches (.25mm) Angular = ± 2 degrees
ORDERING INFORMATION
78 P BW R 10K LF
RoHS Compliant Code - optional Resistance Value Resistance Prefix Optional Panel Mount Adapter Note: Use ‘56BW’ to order panel mount adapter without trimmer PACKAGING Standard: Boxes Capacity = 25 Units STANDARD RESISTANCE VALUES, OHMS 10 200 5K 50K 500K 20 500 10K 100K 1Meg 50 1K 20K 200K 2Meg 100 2K 25K 250K