MODEL 89 3/4 Rectangular Multiturn Cermet Trimming Potentiometer Standard Resistance Range, Ohms Standard Resistance Tolerance Input Voltage, Maximum Slider Current, Maximum Power Rating, Watts 10 to 2Meg 10% (<100 Ohms = +20%) 200 Vdc or rms not to exceed power rating 100mA or within rated power, whichever is less 0.75 at 85C derating to 0 at 125C End Resistance, Maximum 2 Ohms Actual Electrical Travel, Turns, Nominal 20 Dielectric Strength 1,000 Vrms Insulation Resistance, Minimum 1,000 Megohms Resolution Contact Resistance Variation, Maximum Essentially infinite 1% or 1 Ohm, whichever is greater ENVIRONMENTAL Seal 85C Fluorinert (No Leaks) Temperature Coefficient, Maximum +100ppm/C Operating Temperature Range 55C to +125C Thermal Shock 5 cycles, -55C to +125C (1% ART, 1% AVR) Moisture Resistance Ten 24 hour cycles (1% ART, IR 100 Megohms Min.) Shock, 6ms Sawtooth 100Gs (1% ART, 1% AVR) Vibration 20Gs, 10 to 2,000 Hz (1% ART, 1% AVR) High Temperature Exposure 290 hours at 125C (2% ART, 2% AVR) Rotational Life 200 cycles (3% ART) Load Life at 0.5 Watts 1,000 hours at 70C (2% ART) Resistance to Solder Heat 260C for 10 sec. (1% ART) Mechanical Stops Clutch Action, both ends Torque, Starting Maximum 5 oz.-in. (0.035 N-m) Weight, Nominal .05 oz. (1.4 grams) Fluorinert is a registered trademark of 3M Company. Specifications subject to change without notice. 7 =Bi technologies | A Model 89Model 8SP and 96P Model No. And Metal Adjustment Screw: 025+.005 031 + 008 Wide X O27 870.127 Resistance Value 0.635 + 0.127 Marked On This Or Opposite Surface | 15 | | 060 + .015 19.05 | 771.5244 0.381 } Bs + , 4.445 185 + 015 015 + .005 4.669 + 0.381 015. Z 50 5-08 125 + 015 0.381 12.70 3.175 + 0.381 Standoff 2 Places Model 89P dimensions applicable to ail other models except as noted. Min. 2093.01 pia with Deep Slot {JL 021 003 ia 050 + .015 0.533 + 0.076 Typ. 1.270 + 0.381 10 19 4.83 Solderable Terminal Pins (3) Ir. 1 2.54 Modei 8Sw L_ 125+ 015 3.175 + 0.381 i : soozors 4 | t 2540 +0.381 20 5.08 Model 89X |__ 0.25 0.635 = 050 +015 7.270 +0.381 10. 2.54 5 FF | Bi technologies 1-72 Model 89Model 89PH 03 a76} 4 Standoff 02 | 2 Places 0.51 Circuit Diagram Marked On This Surface -@- S e -@- il Housing: Molded Plastic (All Models} Pin Dimensions Same For 89P And 89PH Mode! 89WH 03 076 + Standoff .02 || 2 Places 0.51 Model 89XH Standoff 02 _|| 2Places 0.51 Pin Dimensions Same For 89X And 89XH FF Bi technologies 1-73 Model 89PANEL MOUNT ADAPTER (Inch/mm) Model 898 ce a 914.01 1a7+.010 771 eee Circuit Diagram SS O25 | 304.01 187+.010 || 9.525 + 0.254 Marked On This * + reo e028 i503 0.254 i. urtace i pana naan o% . 375+ .010 fs L_ Sorewariver Hole Material: +{ | r 9.525 + 0.254 | 3991 Dia. Min. Molded bea eal t = , Plastic HU 5/16-32 UNEF Thread 4g7+.010 |!" 4,750 + 0.254 STANDARD RESISTANCE VALUES, OHMS 10 200 5K 50K 500K 20 500 10K 100K 1Meg 50 1K 20K 200K 2Meg 100 2K 25K 250K Standard: Boxes Capacity 100 Units (89P) 50 Units (All other styles) Option: Tubes Ail units oriented with #1 pin to same side. Magazine Width = 0.28 Height = 0.65 Length = 21.5 Capacity = 25 Units i technologies 1-74 Model 89ORDERING INFORMATION Standard: Tt Model Series _ [___ Resistance Value (Use Model 90 to order ________ Resistance Prefix with transparent housing) Pin Style ______-__ Option: 89 P R 10K TB Pin Style L Packaging Option: TB = Tubes Option: 89 P BR 10K Pin Style Panel Mount Adapter (Use 89B to order Adapter without Trimmer) Metric equivalents, based on 1 inch = 25.4mm are rounded to the same number of significant figures ot (2) oT as in the original English units and are provided for general information only oO a (1) ALPAIIYI(VWIJVWI( (3) Tolerances unless otherwise specified: > cw Linear = + .01 inches (.25mm) PROIeCTION Angular = + 2 degrees i technologies 1-75 Model 89