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| MODEL 44 4mm Square Multiturn Surface Mount Cermet Trimming Potentiometer ELECTRICAL 1 Standard Resistance Range, Ohms Standard Resistance Tolerance Input Voltage, Maximum Slider Current, Maximum Power Rating, Watts End Resistance, Maximum Actual Electrical Travel, Turns, Nominal Dielectric Strength Insulation Resistance, Minimum Resolution Contact Resistance Variation, Maximum ENVIRONMENTAL 10 to 2Meg 10% (<100 Ohms = 20%) 300 Vdc or rms not to exceed power rating 100mA or within rated power, whichever is less 0.25 at 85C derating to 0 at 150C 1% or 2 Ohms, whichever is greater 9 600Vrms 1,000 Megohms Essentially infinite 1% or 3 Ohms, whichever is greater Seal Temperature Coefficient, Maximum Operating Temperature Range Thermal Shock Moisture Resistance Shock, 6ms Sawtooth Vibration Rotational Life Load Life at 0.25 Watts Resistance to Solder Heat Temperature Exposure, Maximum Solderability MECHANICAL 85C Fluorinert(R) (No Leaks) 100ppm/C (<100 Ohms = 250ppm/C) -65C to +150C 5 cycles, -65C to +150C (2% RT, 1% VR) Ten 24 hour cycles (2% RT, IR 10 Megohms Min.) 100G's (1% RT, 1% VR) 20G's, 10 to 2,000 Hz (1% RT, 1% VR) 200 cycles (3% RT, 1% CRV) 1,000 hours at 85C (2% RT, 1% CRV) 260C for 10 sec. (1% RT) 215C for 3 min. (1% RT) Per MIL-STD-202, Method 208 Mechanical Stops Torque, Starting Maximum Weight, Nominal Fluorinert(R) is a registered trademark of 3M Company. Specifications subject to change without notice. Clutch action, both ends 3 oz.-in. (0.021 N-m) .01 oz. (0.3 grams) 1-21 Model 44 TOP ADJUSTMENT (Inch/mm) Model 44W Solderable .008.003 3X Terminals .203.076 .100 2.54 (1) (2) .190 4.83 SIDE ADJUSTMENT (Inch/mm) Model 44J Solderable .008.003 3X Terminals .203.076 .025 3X .63 3X .025 .63 (1) .190 4.83 (2) .100 2.54 .200 5.08 (3) .113 2.87 Metal Adjustment Screw .056/1.42 Dia. with .020/.51 wide x .015/.38 deep slot .061 1.56 .113 2.87 Metal Adjustment Screw .056/1.42 Dia. with .020/.51 wide x .015/.38 deep slot .061 1.56 (3) .209 5.31 .022 .55 .198 5.03 .180 4.57 .147 3.73 .138 .154 3.51 3.91 .063 1.60 .039 3X .99 3X .032 .81 SOLDER PAD LAYOUT (Inch/mm) Model 44G .079 2.01 .114 2.90 .051 2X 1.30 Model 44W 3X .060 1.52 .100 2.54 3X .025 .63 .100 2.54 (2) .120 3.05 Metal Adjustment Screw .056/1.42 Dia. with .020/.51 wide x .015/.38 deep slot .061 1.56 (1) .190 4.83 .157 3.99 .079 3X 2.01 (3) Model 44J .079 2.01 .051 1.30 .090 2.29 .205 5.21 3X .051 1.30 .229 5.82 .180 4.57 .154 3.91 2X Model 44G .079 2.01 2X .051 1.30 .090 2.29 .008.003 3X .203.076 Solderable Terminals .024 .61 STANDARD RESISTANCE VALUES, OHMS 10 20 50 100 200 500 1K 2K 5K 10K 20K 25K 50K 100K 200K 250K 500K 1Meg 2Meg 1-22 Model 44 FEATURES AND BENEFITS * Space saving SMD design for the most compact board designs * Sealed to withstand aggressive water wash * Long life - set and forget construction * BI quality and reliability * Available in top and side adjustment versions, J-Hook or gull wing termination PACKAGING 1 Standard: Embossed Tape & Reel All units oriented with #1 pin to the right of the direction of feed. 13" Reel G&J W 12 mm 16 mm 4 mm Pitch 4 mm Pitch 1,000 Units 1,000 Units 13" (330.2 mm) 7" Reel G&J W 12 mm 16 mm 4 mm Pitch 4 mm Pitch 500 Units 250 Units 7" (178 mm) Tape Reel Option: Pin Style Width Sprocket Capacity Diameter = = = = Anti-Static Tubes All units oriented with #1 pin to same side. Magazine Capacity = 100 Units ORDERING INFORMATION 44 G R 10K LF XX* Model Series Pin Style Packaging Option: T7 = 7" Tape & Reel T13 = 13" Tape & Reel TB = Tubes RoHS Compliant Product Code - optional Resistance Value Resistance Prefix * Packaging option must be specified. CIRCUIT DIAGRAM NOTES 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 = .012 inches (.30mm) Angular = 2 degrees (2) (1) CW (3) INCH mm 1-23 Model 44 |
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