Product Specification rd 3 February 2004 TYPE 4270 SERIES ISSUE 6 Professional Trimmers KEY FEATURES TYPE 4270 SERIES Small modern and reliable, this is a range of High Resolution Cermet Element 6mm square multiturn trimming Reliable, Quality Performance potentiometers well suited to industrial and Choice of Adjustment Styles professional applications. For stability, the 0.25 Watt Rating at 85C range has a cermet resistance element. The Low Temperature Coefficient trimmer is actuated by a lead screw with Space-Saving Size slipping clutch at each end of travel. Double Chevron Seal Components from this range are available with Fully Sealed for Board Washing various adjustment configurations. They are all fully sealed to withstand immersion in normal board washing solvents. STOCKISTS: This product is stocked by Easby. Telephone Tyco Passive Product Support Team ++ 44 (0) 1793 572484 Page 1 of 2 Website passives.tycoelectronics.com Email passivesales tycoelectronics.com Product Specification rd 3 February 2004 TYPE 4270 SERIES ISSUE 6 ELECTRICAL Resistance Range: 50R to 2M Resistance Values: 1, 2 and 5 in each decade Resistance Tolerance: 10% End Resistance: 2 Ohms or 1% whichever is the greater. Slider Current: 50 mA maximum. Power Rating: 0.25W at 85C derating to zero at 125C Isolation Voltage: 300 V dc or ac peak maximum Limiting Element Voltage: 250 V dc or ac RMS maximum Breakdown Voltage: 420 VAC Insulation Resistance: 1000 M at 500 V dc Resolution: Essentially Infinite Rotational Noise (CRV): 3 Ohms or 3 %, whichever is greater maximum. Electrical Adjustment: 12 1 turns MECHANICAL End Stop: Slipping clutch action, wiper idles Starting Torque: < 21mNm Mechanical Adjustment: 14 turns, nominal Weight: 0.4gm maximum ENVIRONMENTAL Temperature Range: -55C to +125C Thermal Shock: 5 Cycles -55C to +125C Temperature Coefficient: 250ppm/C Shock: 100g Vibration Severity: 10 - 500Hz 10g (0.75mm or 98m/s) Rotational Life: 200 Cycles Load Life at 85C: R <2% after 1000 hours Sealing: Sealed for board washing DIMENSIONS 4270W 4270X All Dimensions are Nominal and in mm unless otherwise shown. Do Not Scale HOW TO ORDER This publication is issued to provide outline information only and (unless specifically agreed to the contrary by the Company in writing) is not to form part of any order or be regarded as a representation relating to the products or service concerned. We reserve the right to alter without notice the specification, design, price or conditions of supply of any product or service. Whilst Tyco Electronics Components products are of the very highest quality and reliability, all electronic components can occasionally be subject to failure. Where failure of a Tyco Electronics Components product could result in life threatening consequences, then the circuit and application must be discussed with the Company. Such areas might include ECG, respiratory and other medical and nuclear applications and any non fail-safe applications circuit. Telephone Tyco Passive Product Support Team ++ 44 (0) 1793 572484 Page 2 of 2 Website passives.tycoelectronics.com Email passivesales tycoelectronics.com