SMD Economy Trimmers Type 3142 Series Type 3142 Series Characteristics Electrical Resistance Range: 100R to 1M Resistance Values: 1, 2 & 5 in each decade Resistance Tolerance: 25% Resistance Law: Linear Temperature Coefficient of Resistance: 250ppm/C Operating Voltage: 50 V DC maximum Wiper Current: 50mA maximum Resolution: Infinite A range of small single turn trimmers Contact Resistance Variation: <5% of Nominal Value suited Power Rating: 0.15 Watts @ 70C Electrical Rotation: 270 10 application. The 3142 is supplied on End Resistance: 5% maximum 12mm tape on 180mm diameter reels. Insulation Resistance: 100M (250V DC) minimum to attractively reflow soldering priced for and volume This product is long established, having an excellent reputation for long term stability. It is readily available from our network of distributors. Key Features Stable Cermet Element 0.15W Power Rating Packed in Standard 12mm Tape Suited to Auto Placement Temperature Range -25C to +85C Characteristics Mechanical Rotation Torque: 2.0 - 20 mNm Solder Strength: 300mNm (3 directions) minimum Mechanical Rotation: 360 Continuous Characteristics Environmental Excellent Vacuum Pickup on Rotor Height Profile of Just 2.4mm from Board Operating Temperature Range: -25C to +85C Humidity Load Life: 350 hrs 40C RH 90-95% R 5% Load Life: 1000 hrs @ 70C R 5% Temperature Cycle: R 3% -25C ~ +85C Rotational Life: 10 10% cycles Derating Curve 100 Rated Power (%) 80 60 40 20 0 0 10 20 30 40 50 60 70 80 85 Ambient Temperature (C) When the ambient temperature exceeds 70C, reduce the rated power and current in accordance with the derating curve shown Literature No. 1773128 Issued: 08-05 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com SMD Economy Trimmers Type 3142 Series Dimensions Substrate Layout Cleaning Conditions After soldering, use cleaning solvents such as chlorosen or dyefreon. Storage To prevent damage to the electrode, be sure to observe the following cautions for storage. Store in 40C maximum ambient temperature and 70C maximum ambient RH. For maximum possible shelf life do not disturb polythene sleeve until you are ready to use potentiometers. Store where there are no harmful gases containing sulphur or chlorine. How to Order 3142 W 102 P Common Part Orientation Resistance Value Tolerance W - Terminals 1&3 towards sprocket holes The first two digits are significant figures of resistance value and the third denotes the number of zeros following. 3130 - 3 Terminals P - 25 % e.g. 100R: 101 1K: 102 10K: 103 100K: 104 1MO: 105 Literature No. 1773128 Issued: 08-05 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. www.tycoelectronics.com passives.tycoelectronics.com