type 51 series spindle operated potentiometers meggitt citec meggitt electronic components log no fo144 issue 4 4 pages 01-01 meggitt citec key features linear and non linear laws choice of shafts and edgewheels spst switch style avaliable in distribution automatic machine insertable modules eyelet or pc terminations multi gang versions available the type 51 series from meggitt citec offers a small, high quality potentiometer system. you can choose a standalone module or a conventional bush potentiometer with shaft. advanced carbon polymer element technology potentiometers with or without switches are avaliable to meet your every requirements. potentiometers inductors, surface mount devices switches, networks encoders, sensors sales action desk fax: (01793 611777) tel: (01793 611666) email: sales@megelec.co.uk web site: www.megelec.co.uk
- 40c to 85c - 25c to 70c < 15% r rh 75% @ 35c 500 ppm/c @ -25 to 70c 25/070/10 mechanical electrical resistance range: linear law: log law: tolerance: power rating: linear law: log law: operating voltage: linear law: log law: load life: rotational life: crv (linear law): isolation voltage: insulation resistance: 470 ohm to 4.7 megohm 2.2k ohm to 470k ohm 20% (tighter by selection) 0.2 watt @ 40c 0.1 watt @ 40c 350 vac or 500 vdc maximum p maximum x r nominal r< 10% after 1000 hours @ 70c r< 10% @ 15,000 cycles r< 1% 500 v dc > 100 megohm derating curve 0 - 40 40 70 100 13 80 60 40 20 100 ambient temperature ( c ) dissipation ( % ) linear law 100% = 0.2 w non-linear law 100% = 0.1 w angle of rotation: rotational torque: stop strength: rotational life: 300 2 10 mnm maximum 400 mnm maximum 25,000 cycles environmental storage temperature: operating temperature: humidity: temperature coefficient: climatic category: switch contact resistance: rating: contact configuration: on/off torque: operational angle: electrical rotation: < 20 milliohm initial 3.5 amp @ 14.4 vdc spst off @ ccw e 30 mnm maximum 30 maximum 50 to 295 soldering condition dissipation as a function of temperature. potentiometers covered by this specification are derated from 100% rated dissipation at 40c to zero dissipation at 100c this product has been designed for flow solder only. specification type 51 series (page 2 of 4) the type 51 series is designed for flow soldering only. if hand soldering is essential please take extreme care when applying solder. do not overheat the terminal by prolonged exposure to heat otherwise intermittent operation could result. solder bath: 235c +0c/-5c immersion time: 2 0.5 seconds test conditions: iec 391-1 clause 6.22.3 test method: iec 68-2
12.6 0.3 9.1 0.5 m7 x 0.75 0.05 0 6 m7 x 0.75 30 0.5 0 6 4.02 c b a 9.3 6.5 3.1 6.5 0.3 2.5 0.1 10 0.5 0.15 13.55 0.2 0 0 0.03 3 6 0.4 4 0.2 1.15 12.75 3.5 0 0.05 0.4 0.2 2.5 0.1 9.6 1.7 0.50.15 mounting surface 2.75 0.1 type 53 vertical single module r1 12.6 0.3 6.5 0.2 9.3 0.2 r2 l 0.2 m7 x 0.75 14.10.5 0.05 6 0 0.05 m7 x 0.75 0 6 0.05 l 0.15 m7 x 0.75 0 4 0.05 l = we can offer any length up to 30mm, ( 20mm x 4mm shafts) with or without flats or slots in metal. plastic plug-in shafts s hown overleaf. potentiometers with bush panel hole data spindle options potentiometers with bushes for single and dual gang potentiometers with mounting bush m7 x 0.75mm required mounting holes in chassis 2.1 min. 7.5 type 51 horizontal 12.5 po tentiometer type 54 no switch type 56 with switch 6.5 0.2 h0.2 l 0.2 h0.2 l 0.2 14.1 0.5 10mm only 6.5 0.2 l = 5mm or 8mm to choice h = 10mm or 12.5mm to choice h mm po tentiometer type 61 triple section type 55 dual section 19.1 0.5 r1 r3 r2 3.75 0.1 3.75 0.1 * type 61 has the same general dimensions as type 55 * h = 10mm or 12.5mm to choice l = 5mm or 8mm to choice l 0.5 8 0.75 or 5mm 0.15 l 0.5 (h) 10 or 12.5 fix potentiometer with mounting nut; supplied max. torque for tightening = 1 nm; min. thickness of mounting plate = 1mm specification (cont.) type 51 series (page 3 of 4)
the 51 series is ordered by description due to the very wide multiples and configuration available. we will sample to your des cription and if approved, our technical sales group will define a discrete part number to meet your requirements and for future ordering note please specify : type no. e.g. 51 resistance value e.g. 220k ohms spindle detail e.g. 6mm diameter x 30mm long law e.g. linear switch detail e.g. spst accessories e.g. plug-in edgewheel & size 100.2 200.2 300.2 600.2 2.5 0.1 2.5 0.1 2.5 0.1 2.5 0.1 snap- in shafts and edgewheels - for standalone modules the diagram illustrates the snap-in part of a plastic actuator which can be used to rotate the series 51 standalone module. consult mec citec sales action desk for details on our full custom knob and shaft capabilities. we will for example be pleased to quote for moulding your shaft and knob as a single snap-in component, subject to suitable volumes bieng available. o25 0.1 5 +0.1 0 3 -0.03 0.1 +0.1 0 2.4 1.5 0 +0.2 o30.75 0.1 6 +0.1 0 thumbwheel actuating devices accessory options - for standalone modules at the date of publication the following mould tools exist for plug in accessories edgewheel for horizontal modules 25mm diameter 60 mm long x 6 mm diameter 30 mm long x 6 mm diameter 20 mm long x 6 mm diameter 10 mm long x 6 mm diameter with knurl end and screwdriver slot colour black with knurl end and screwdriver slot colour black with knurl end and screwdriver slot colour black with knurl end and screwdriver slot colour black colour black. 3.5 +0.05 0 1.5 0.1 0.5 0.1 o 4.50.03 -0.03 0 o 4 +0.1 0 1.5 o3.4 0.1 0 +0.1 o4.4 2.5 +0.1 0 3 -0.03 0 shafts specification (cont.) type 51 series (page 4 of 4) how to order meggitt electronic components ltd. ohmic house, westmead industrial estate, swindon, wilts. sn5 7us telephone:(01793)487301 (admin.) (01793)611666 (sales) email: sales@megelec.co.uk fax:(01793) 611777 this publication is issued to provide outline information only and (unless specifically agreed to the contrary by the company i n 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 reliabi lity, 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.
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