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 Contact Resistance Variation: <5% of Nominal Value A range of small single turn trimmers Power Rating: 0.15 Watts @ 70°C suited to reflow soldering and Electrical Rotation: 270° ±10° attractively priced for volume End Resistance: 5% maximum application. The 3142 is supplied on 12mm tape on 180mm diameter reels. Insulation Resistance: 100M (250V DC) minimum This product is long established, having an excellent reputation for long term stability. It is readily available Characteristics - from our network of distributors. Mechanical Rotation Torque: 2.0 - 20 mNm Key Features Solder Strength: 300mNm (3 directions) minimum Mechanical Rotation: 360° Continuous � Stable Cermet Element � 0.15W Power Rating � Packed in Standard 12mm Characteristics - Tape Environmental � Suited to Auto Placement Operating Temperature Range: -25°C to +85°C � Temperature Range Humidity Load Life: 350 hrs 40°C RH 90-95% ∆R ±5% -25°C to +85°C Load Life: 1000 hrs @ 70°C ∆R ±5% � Excellent Vacuum Pickup Temperature Cycle: ∆R ±3% -25°C ~ +85°C on Rotor Rotational Life: 10 ±10% cycles � Height Profile of Just 2.4mm from Board Derating Curve 100 80 60 40 20 0 010 20 30 40 50 60 70 8085 Ambient Temperature (°C) When the ambient temperature exceeds 70°C, reduce the rated power and current in accordance with the derating curve shown Literature No. 1773128 Dimensions are shown for Dimensions are in millimetres Specifications subject to www.tycoelectronics.com Issued: 08-05 reference purposes only. unless otherwise specified. change. passives.tycoelectronics.com Rated Power (%) 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 40°C maximum ambient temperature and 70°C 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 The first two digits are significant figures of resistance value and the W - Terminals 1&3 third denotes the number 3130 - 3 Terminals P - 25 % towards sprocket holes of zeros following. e.g. 100R: 101 1K: 102 10K: 103 100K: 104 1MO: 105 Literature No. 1773128 Dimensions are shown for Dimensions are in millimetres Specifications subject to www.tycoelectronics.com Issued: 08-05 reference purposes only. unless otherwise specified. change. passives.tycoelectronics.com