MODEL 72 1 3/8” Square Single Turn Cermet Trimming Potentiometer ELECTRICAL Standard Resistance Range, Ohms Standard Resistance Tolerance Input Voltage, Maximum Slider Current, Maximum Power Rating, Watts End Resistance, Maximum Actual Electrical Travel, Nominal Dielectric Strength Insulation Resistance, Minimum Resolution Contact Resistance Variation, Maximum 10 to 2Meg ±10% (<100 Ohms = ±20%) 200 Vdc or rms not to exceed power rating 100mA or within rated power, whichever is less 0.5 at 85°C derating to 0 at 125°C 2 Ohms 244° 900 Vrms 1,000 Megohms Essentially infinite 1% or 1 Ohm, whichever is greater ENVIRONMENTAL Seal Temperature Coefficient, Maximum Operating Temperature Range Thermal Shock Moisture Resistance Shock, 6ms Sawtooth Vibration High Temperature Exposure Rotational Life Load Life at 0.5 Watts Resistance to Solder Heat 85°C Fluorinert® (No Leaks) ±100ppm/°C –55°C to +125°C 5 cycles, –55°C to +125°C (1% ∆RT, 1% ∆VR) Ten 24 hour cycles (1% ∆RT, IR 100 Megohms Min.) 100G’s (1% ∆RT, 1% ∆VR) 20G’s, 10 to 2,000 Hz (1% ∆RT, 1% ∆VR) 250 hours at 125°C (2% ∆RT, 2% ∆VR) 200 cycles (3% ∆RT) 1,000 hours at 70°C (2% ∆RT) 260°C for 10 sec. (1% ∆RT) MECHANICAL Mechanical Stops Torque, Starting Maximum Weight, Nominal Solid 3 oz.-in. (0.021 N-m) .025 oz. (0.70 grams) Fluorinert® is a registered trademark of 3M Company. Specifications subject to change without notice. 1-55 Model 72 TOP ADJUSTMENT (Inch/mm) Model 72P Model No., Resistance Value And Date Code marked on side .187 ± .015 4.75 ± .38 3 1 Electrical Adjustment .13 ± .005/3.3 ± .13 Long x .03 ± .003/.76 ± .08 Wide x .038 ± .005/.96 ± .13 Deep Ø.021 ± .003/.53 ± .08 Solderable Terminals 2 .100 ± .010 2.5 ± .3 .375 ± .015 9.53 ± .38 .187 ± .015 4.75 ± .38 .100 ± .010 2.5 ± .3 .100 ± .010 2.5 ± .3 .375 ± .015 9.53 ± .38 .180 Min. 4.6 Standoffs .015 ± .002 .38 ± .05 .187 ± .015 4.75 ± .38 .206 ± .015 5.23 ± .38 Note: Model 72P dimensions applicable to all other models except as noted. Model 72PL Model 72PM .015 ± .010 .38 ± .3 .100 ± .010 2.5 ± .3 .187 ± .015 4.75 ± .38 .187 ± .015 4.75 ± .38 3 2 .100 ± .010 2.5 ± .3 3 .100 ± .010 2.5 ± .3 .10 ± .010 2.5 ± .3 .100 ± .010 2.5 ± .3 .187 ± .015 4.75 ± .38 .200 ± .010 5.1 ± .3 Model 72RP .015 ± .010 .38 ± .3 .150 ± .010 3.8 ± .3 2 1 Model 72PX, 72RPX 3 2 1 .100±.010 2.5±.3 .160±.015 4.6±.38 .187±.015 4.75±.38 1 2 .150 ± .010 3.8 ± .3 .100±.010 2.5±.3 .187 ± .015 4.75 ± .38 3 1 .100±.010 2.5±.3 Model 72RPX - Terminals 1 and 3 are reversed 1-56 Model 72 SIDE ADJUSTMENT (Inch/mm) 1 Model 72XL, 72RXL, 72RW Model 72X, 72RX .017 ± .003 .43 ± .08 Standoffs .386 9.80 3 2 .187 ± .015 4.75 ± .38 .100 ± .010 2.5 ± .3 .017 ± .003 .43 ± .08 Standoffs 1 .100 ± .010 2.5 ± .3 .100 ± .010 2.5 ± .3 .100 ± .010 2.5 ± .3 3 2 .187 ± .015 4.75 ± .38 .050 ± .015 1.27 ± .38 72XL, 72RXL .140 ± .015 3.56 ± .38 1 .100 ± .010 2.5 ± .3 72RW .100 ± .015 2.5 ± .38 Model 72RXL And 72RW - Terminals 1 and 3 are reversed Model 72RX - Terminals 1 and 3 are reversed Model 72XW, 72RXW .017 ± .003 .43 ± .08 Standoffs 3 2 .150 ± .010 3.8 ± .3 1 .150 ± .010 3.8 ± .3 .187 ± .015 4.75 ± .38 .140 ± .015 3.56 ± .38 Model 72RXW - Terminals 1 and 3 are reversed 1-57 Model 72 EXTENDED ROTOR OPTION (Inch/mm) ADJUSTMENT KNOB OPTION (Inch/mm) Available for all Model 72 pin styles: Available options: 72PE, 72PLE, 72PME, 72PXE, 72RPXE, 72XE, 72RXE, 72XLE, 72RXLE, 72RWE, 72XWE, 72RXWE 72XT- Side Adjustment (See 72X for Pin Configuration) 72PT- Top Adjustment (See 72P for Pin Configuration) .310±.031 7.87±0.79 Electrical Adjustment .14 ± .005/3.56 ± .13 Dia. x .04 ± .003/1.02 ± .08 Wide x .063 ± .005/1.60 ± .13 Deep Slot Ø.330 ± .01 8.38 ± .13 Adjustment Knob Slot .220 ± .005/5.59 ± .13 Long x .040 ± .005/1.02 ± .13 Wide x .045 ± .005/1.14 ± .13 Min. Depth .410 ± .02 10.41 ± .51 .206 ± .015 5.23 ± .38 72PT Shown - Dimensions applicable to 72XT STANDARD RESISTANCE VALUES, OHMS 10 20 50 100 200 500 1K 2K 5K 10K 20K 25K 1-58 50K 100K 200K 250K 500K 1Meg 2Meg Model 72 PACKAGING 1 Standard: Boxes Capacity Option: 100 Units Tubes All units oriented with #1 pin to same side. Magazine Option: = Pin Style Width Height Length Capacity = = = = P, PM 0.47” 0.54” 20.5” 50 Units X, XL, XW, RW 0.29” 0.76” 20.1” 50 Units Tape & Reel, Ammo Pack (Available only for 72RW only) All units oriented with #1 pin to the right of the direction of feed. Tape Reel Ammo Seat Plane to Centerline of Sprocket Hole Width Sprocket Capacity Diameter Tape Fold Box = = = = = = = .71” (18.03 mm) 18 mm Single Hole .50” spacing 1,000 Units 14” (356mm) 12” (305mm) 1.8” x 13” x 10” (46mm x 330mm x 254mm) 1-59 Model 72 ORDERING INFORMATION Standard: 72 P R 10K LF RoHS Compliant Product Code - Optional Resistance Value Resistance Prefix Model Series Pin Style Option: 72 W R 10K LF TB Packaging Option: TB = Tubes (Pin styles P, PM, X, XL, XW, RW) RoHS Compliant Product Code - Optional Pin Style Option: 72 RW F R 10K LF TR Packaging Option: AP = Ammo pack TR = Tape & Reel (Pin style RW only) RoHS Compliant Product Code - Optional Pin Style Pin Style Suffix: (Used with AP and TR packaging options. Applicable to pin style RW only. "F" designates 0.70" lead length.) Option: 72 X T R 10K LF RoHS Compliant Product Code - Optional Pin Style Adjustment Options: T = Knob Option Applicable to pin style X & P only. E = Extended Rotor Option Applicable to all pin styles. NOTES CIRCUIT DIAGRAM 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. (2) (1) (3) CW INCH mm Tolerances unless otherwise specified: Linear = ± .01 inches (.25mm) Angular = ± 2 degrees 1-60 Model 72