Model 68 3/8” Square Multiturn Cermet Trimming Potentiometer ELECTRICAL Standard Resistance Range 10 Ohms to 2 Megohms Standard Resistance Tolerance ±10% (<100 Ohms = ±20%) Input Voltage 200 Vdc Max. or rms not to exceed power rating Slider Current 100 mA Max. or within rated power, whichever is less Power Rating 0.5 Watts at 85°C derating to 0 at 125°C End Resistance 2 Ohms Max. Actual Electrical Travel 20 turns nominal Dielectric Strength 900 Vrms Insulation Resistance 1,000 Megohms Min. Resolution Essentially infinite Contact Resistance Variation 1% or 1 Ohm Max., whichever is greater ENVIRONMENTAL Seal 85°C Fluorinert® (No Leaks) Temperature Coefficient ±100 ppm/°C (<100 Ohms = ±250 ppm/°C) Operating Temperature Range –55°C to +125°C Thermal Shock Five cycles –55°C to +125°C (1% ∆RT, 1% ∆VR) Moisture Resistance Ten 24 hour cycles (1% ∆RT, IR 1,000 Megohms Min.) Shock 6 ms sawtooth, 100 G’s (1% ∆RT, 1% ∆VR) Vibration 20 G’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 1,000 hours at 70°C & 0.5 Watts (2% ∆RT) Resistance to Solder Heat 260°C for 10 sec. (1% ∆RT) MECHANICAL Mechanical Stops Clutch action, both ends Torque, Starting 5 oz.-in. Max. (0.035 N-m) Weight 0.04 oz. nominal (1.1 grams) Specifications subject to change without notice. Fluorinert® is a registered trademark of 3M Company. BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 June 3, 2010 Website: www.bitechnologies.com Model 68 page 1 of 3 Model 68 PACKAGING Standard (no code): Boxes. Capacity = 100 units for 68W. 50 units for all other pin styles. Option (TR code, available for 68W & 68X only): Tape & Reel. All units oriented with #1 pin to the right of the direction of feed. Tape Width = 18 mm Sprocket = Single hole, 0.050” spacing Capacity = 1,000 units Seat plane to centerline of sprocket hole = 0.71” (18 mm) Diameter = 14” (363 mm) Reel Option (AP code, available for 68W & 68X only): Ammo Pack. All units oriented with #1 pin to the right of the direction of feed. Ammo Tape Fold = Box = 12” (305 mm) 1.8” x 13” x 10” (46 mm x 330 mm x 254 mm) Option (TB code): Tubes. All units oriented with #1 pin to same side. Tube capacity = 50 units. Pin Style Dimensions P W X Width = 0.57” 0.33” 0.33” Height = 0.66” 0.90” 0.90” Length = 20.9” 20.4” 24.4” ORDERING INFORMATION 68 P F R 10K LF Model Series Packaging Option: no code = Box (standard) TR = Tape & Reel (Pin Styles W, X only) AP = Ammo Pack TB = Tubes (Pin Styles P, W, X only) Pin Style Optional 0.70” lead length for AP & TR packaging, pin style W & X only Resistance Prefix Resistance Value (2) (3) CW 10 200 5K 50K 500K 20 500 10K 100K 1Meg 50 1K 20K 200K 2Meg 100 2K 25K 250K BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 June 3, 2010 Optional RoHS compliant product code STANDARD RESISTANCE VALUES CIRCUIT DIAGRAM (1) XX Website: www.bitechnologies.com Model 68 page 2 of 3 Model 68 TOP ADJUSTMENT SIDE ADJUSTMENT Model 68W Model 68X .375 ± .015 9.53 ± 0.38 .15 ± .02 3.8 ± 0.5 .245 Max. 6.22 .245 Max. 6.22 Metal Adjustment Screw .090/2.29 Dia. With .020/0.51 Wide X .025/0.64 Min. Depth Schematic Diagram This Surface .062 ± .015 1.58 ± 0.38 Metal Adjustment Screw .090/2.29 Dia. With .020/0.51 Wide X .025/0.64 Min. Depth Schematic Diagram This Surface Standard Marking This Surface .060 ± .015 1.52 ± 0.38 .12 ± .02 3.1 ± 0.5 .375 ± .015 9.53 ± 0.38 Standard Marking This Surface .015 0.38 .020 ± .003 Dia. 0.51 ± 0.08 Terminal Pins (3) .375 ± .015 9.53 ± 0.38 .15 ± .02 3.8 ± 0.5 .375 ± .015 9.53 ± 0.38 .32 ± .02 8.1 ± 0.5 .18 Min. 4.6 .020 ± .003 Dia. 0.51 ± 0.08 Terminal Pins (3) (3) (2) (1) .18 Min. 4.6 (3) (2) (1) .060 ± .015 1.524 ± 0.38 .045 ± .015 1.14 ± 0.38 .045 ± .015 1.14 ± 0.38 .10 .10 2.5 2.5 .10 .10 2.5 2.5 .187 ± .015 4.75 ± 0.38 .187 ± .015 4.75 ± 0.38 SIDE ADJUSTMENT Model 68P .245 6.22 Max. Schematic Diagram This Surface .18 4.6 Min. (3) (2) Metal Adjustment Screw (1) .090/2.29 Dia. With .020/0.51 Wide X .025/0.64 Min. Depth .19 ± .02 4.8 ± 0.5 .375 ± .015 9.53 ± 0.38 Standoff .015 ± .002 Min. 0.38 ± 0.05 .020 ± .003 Dia. 0.51 ± 0.08 Terminal Pins (3) .03 Max. 0.8 Meniscus (Typ) .187 ± .015 4.75 ± 0.38 (2) .12 ± .02 3.1 ± 0.5 .060 ± .015 1.524 ± 0.38 BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 June 3, 2010 .10 2.5 .10 2.5 (3) Website: www.bitechnologies.com Model 68 page 3 of 3 .375 ± .015 9.53 ± 0.38 .187 ± .015 4.75 ± 0.38 (1) .10 2.5 Standard Marking This Surface