MEGGITT CITEC POTENTIOMETERS INDUCTORS, SURFACE MOUNT DEVICES SWITCHES, NETWORKS ENCODERS, SENSORS Professional Trimmers TYPE 4290 SERIES Where size and reliability are critical, this range of 10mm square multiturn trimming potentiometers satisfies the requirements in industrial and professional applications. The cermet resistance element offers stability and high resolution. The trimmer is actuated by a lead screw with a slipping clutch at each end of travel. End stops are marked by audible click. Top or side adjustment components are available and pin configurations meet the majority of requirements. All units are fully sealed to withstand immersion in board washing solvents. MEGGITT CITEC KEY FEATURES HIGH STABILITY CERMET ELEMENT 0.5 WATT RATING AT 70C SLIM PROFILE ASSISTS STACKING TOP & SIDE ADJUSTMENT STYLES AVAILABLE LOW TCR 100PPM/C MAXIMUM AUDIBLE SIGNAL AT CLUTCH END FLAME RETARDANT CASE ATTRACTIVELY PRICED SALES ACTION DESK TEL: (01793 611666) MEGGITT ELECTRONIC FAX: (01793 611777) COMPONENTS EMAIL: sales megelec.co.uk WEB SITE: www.megelec.co.uk LOG No FO255 ISSUE 3 07-98SPECIFICASPECIFICASPECIFICASPECIFICASPECIFICATIONTIONTIONTIONTION TYPE 4290 SERIES ELECTRICAL Resistance Range: 10R to 5M Resistance Values: 1, 2 and 5 in each decade Resistance Tolerance: 10% (Closer tolerances available) End Resistance: 2 ohms, maximum Slider Current: 100 mA DC or AC, maximum Power Rating: 0.5 Watts at 70C derating to zero at 125C Isolation Voltage: 430 V DC or AC peak Limiting Element Voltage: 300 V DC or AC RMS, maximum Breakdown Voltage: 900 V AC for one minute Insulation Resistance: 1000 M at 500 V DC, minimum Resolution: Essentially Infinite Rotational Noise (CRV): 3 Ohms or 3 %, whichever is greater Temperature Coefficient: 100 ppm/C, maximum Electrical Adjustment 22 turns MECHANICAL End Stop: Slipping clutch both ends with audible click Starting Torque: 21 mNm Mechanical Adjustment: 25 turns Weight: 0.8 gram, approx. ENVIRONMENTAL Temperature Range: -55C to +125C Temperature Storage: 1000 Hrs at 125C Thermal Shock: 5 Cycles -55C to +125C Bump Severity: 4000 Bumps 40 G (3mm or 390m/s) Vibration Severity: 10 - 500Hz 20 G Rotational Life: 200 Cycles Load Life at 85C: R <3% after 1000 hours Sealing: Sealed for board washing Climatic Category: 55/125/21 DIMENSIONS 4290P 4290W 4290Y Slot 0.55 wide 4290X x 0.75 deep 1.09 2.3 Dia. 12 3 3 2 1 32 1 1 3 2 0.50 Dia. Pins 5.08 1 3 2.54 All Dimensions are nominal CW and in mm unless othrwise 4.76 4.76 2.54 shown.Do Not Scale. 2 HOW TO ORDER 42904290429042904290 WWWWW 502502502502502 KKKKK RESISTRESISTANCE VANCE VALUEALUE COMMON PCOMMON PCOMMON PCOMMON PCOMMON PARTARTARTARTART PIN CONFIGURAPIN CONFIGURAPIN CONFIGURAPIN CONFIGURAPIN CONFIGURATIONTIONTIONTIONTION RESISTRESISTRESISTANCE VANCE VANCE VALUEALUEALUE TOLERANCETOLERANCETOLERANCETOLERANCETOLERANCE The first digits are Example P - Low Profile significant figures of W - Top Adjust 1k : 102 K = 10% 4290 resistance value and the third X - Side Adjust 10k : 103 one denotes the number of Y - Top Adjust 100k : 104 zeros following Meggitt Electronic Components Ltd. Ohmic House, Westmead Industrial Estate, Swindon, Wilts. SN5 7US Telephone: (01793)487301 (Admin.) (01793) 611666 (Sales) Telex:449112 Citec G Fax:(01793) 610217 or 511513 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 Meggitt Electronic Components products are of the very highest quality and reliability, all electronic components can occasionally be subject to failure. Where failure of a Meggitt Electronic 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. 1.09 5.0 5.22 2.54 2.5 6.0 10.0 1.5 1.09 2.54 1.14