MODEL 25 1 1/4” Square Single Turn Cermet Trimming Potentiometer ELECTRICAL Standard Resistance Range, Ohms Standard Resistance Tolerance Input Voltage, 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% 250 Vdc or rms not to exceed power rating 0.5 at 70°C derating to 0 at 125°C 1% or 2 Ohm, whichever is greater 210° 900Vrms 1,000 Megohms Essentially infinite 1% or 3 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 (2% ∆RT, 2% ∆VR) Ten 24 hour cycles (3% ∆RT) 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 (2 Ohms +3% ∆RT) 1,000 hours at 70°C (3% ∆RT, 3% ∆VR) 350°C for 3 sec. (1% ∆RT) MECHANICAL Mechanical Stops Stop Strength, Minimum Torque, Maximum Weight, Nominal Solid 6 oz.-in. (500 gr-cm) 3 oz.-in. (200 gr-cm) .01 oz. (0.3 grams) Fluorinert® is a registered trademark of 3M Company. Specifications subject to change without notice. 1-17 Model 25 TOP ADJUSTMENT (Inch/mm) STANDARD RESISTANCE VALUES, OHMS 10 20 50 100 200 500 1K 2K 5K 10K 20K 50K 1-18 100K 200K 500K 1Meg 2Meg Model 25 SIDE ADJUSTMENT (Inch/mm) 1 1-19 Model 25 PACKAGING Standard: Tubes, all styles, 50 units/tube All units oriented with #1 pin to same side. Option : Tape & Reel, Ammo Pack (Available only for 25U and 25V) All units oriented with #3 pin towards direction of feed. Seat Plane to Centerline of Sprocket Hole Width Sprocket Capacity Diameter Tape Fold Box Tape Reel Ammo = = = = = = = .71” (18 mm) 18 mm Single Hole .50” spacing 750 Units U style, 1000 V style 14” (363 mm) 12” 2.0” x 13.4” x 13.8” (50mm x 340mm x 350mm) ORDERING INFORMATION 25 P R 10K LF Standard Package Model Series Pin Style Optional Packaging RoHS Compliant Product Code - Optional Resistance Value Resistance Prefix 25 U R 10K LF XX Pin Style Packaging Option (25U & 25V) AP = Ammo Pack TR = Tape & Reel RoHS Compliant Product Code - Optional CIRCUIT DIAGRAM NOTES (2) English equivalents are based on 1 inch = 25.4mm and are provided for general information only. (1) (3) INCH mm Tolerances unless otherwise specified: Linear = ± 0.3 mm (.01 in.) CW 1-20 Model 25