PL
IA
NT
Features
■
Wirewound and Hybritron
®
elements
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High rotational life
■
Optional 0.20 % linearity
■
Optional A/R lug
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RoHS compliant*
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Suitable for use under side load
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Designed for HMI and MMI applications
■
Dual gang option
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Servo mount option
*R
oH
S
CO
M
3547 - 3-Turn Precision Potentiometer
Electrical Characteristics
1
Wirewound Element
Hybritron
®
Element
Standard Resistance Range ..................................................................1K to 50K ohms .................................................... 1K to 10K ohms
Total Resistance Tolerance ....................................................................±3 %...................................................................... ±10 %
Independent Linearity ............................................................................±0.25 %................................................................. ±0.25 %
Independent Linearity (Maximum Practical) ..........................................±0.20 %................................................................. ±0.20 %
Effective Electrical Angle .......................................................................1080 ° +10 °, -0 ° .................................................. 1080 ° +10 °, -0 °
Absolute Minimum Resistance/End Voltage .........................................1 ohm or 0.1 % maximum .................................... 0.7 % maximum
(whichever is greater)
Noise/Output Smoothness ...................................................................100 ohms maximum.............................................. 0.15 % maximum
Max. Wiper Current @ 5K ohms ............................................................20 mA .................................................................... 10 mA
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ...........................................................................................1,000 VAC minimum.............................................. 1,000 VAC minimum
Insulation Resistance (500 VDC) ...........................................................1,000 megohms minimum .................................... 1,000 megohms minimum
Resolution .............................................................................................See How to Order chart ....................................... Essentially infinite
Power Rating (Voltage Limited By Power Dissipation)
+70 °C................................................................................................1 watts................................................................... 1 watts
+125 °C..............................................................................................0 watt .................................................................... 0 watt
Environmental Characteristics
1
Operating Temperature Range
Dynamic.............................................................................................-40 °C to +125 °C ................................................. -40 °C to +125 °C
Static .................................................................................................-55 °C to +125 °C ................................................. -55 °C to +125 °C
Temperature Coefficient (Over Static Temperature Range) ...................±50 ppm/°C........................................................... ±100 ppm/°C
Temperature Cycling (5 Cycles Over Static Temperature Range) .........±2 % TR shift max. ............................................... ±4 % TR shift max.
Vibration (15 Gs, 10 Hz to 2 kHz)
Wiper Bounce ....................................................................................0.1 ms max............................................................ 0.1 ms max.
Shock (100 Gs, 6 ms sawtooth)
Wiper Bounce ....................................................................................0.1 ms max............................................................ 0.1 ms max.
Load Life (1,000 hours @ 70 °C) ............................................................±2 % TR shift max. ............................................... ±5 % TR shift max.
Rotational Life
No Load .............................................................................................750,000 shaft revolutions ..................................... 1,500,000 shaft revolutions
Powered (MIL-PRF-12934) ................................................................600,000 shaft revolutions ..................................... 1,200,000 shaft revolutions
Moisture Resistance (Mil-Std-202, Method 103) ..................................±2 % TR shift max. ............................................... ±5 % TR shift max.
IP Rating ................................................................................................IP 50 ...................................................................... IP 50
Mechanical Characteristics
1
Mechanical Angle .......................................................................................................................................................................................... 1080 ° +10 °, -0 °
Backlash ....................................................................................................................................................................................................................1.0 ° max.
Stop Strength ..................................................................................................................................................................................... 53 N-cm (75 oz-in.) min.
Torque
Starting ....................................................................................................................................................................................... 0.5 N-cm (0.7 oz.-in.) max.
Running ...................................................................................................................................................................................... 0.5 N-cm (0.7 oz.-in.) max.
Clutch .............................................................................................................................................................................. 1.0 to 4.2 N-cm (1.5 to 6.0 oz.-in.)
Mounting..........................................................................................................................................................................170-200 N-cm (15-18 in.-lb.) max.
Shaft Runout T.I.R. ..................................................................................................................................................................................... 0.08 mm (0.003 in.)
Lateral Runout T.I.R. ................................................................................................................................................................................... 0.13 mm (0.005 in.)
Shaft End Play T.I.R. ................................................................................................................................................................................... 0.15 mm (0.006 in.)
Shaft Radial Play T.I.R. ............................................................................................................................................................................... 0.08 mm (0.003 in.)
Pilot Diameter Runout T.I.R. ....................................................................................................................................................................... 0.08 mm (0.003 in.)
Weight
Single .................................................................................................................................................................................................... 18 gm (0.63 oz.) typ.
Dual ....................................................................................................................................................................................................... 34 gm. (1.2 oz.) typ.
Shaft Side Load (Max. Allowable)
Nickel Plated Brass Shaft w/Brass Bushing................................................................................................................................................. 50 gmf (1.7 ozf)
Stainless Steel Shaft w/Bronze Bushing .................................................................................................................................................... 250 gmf (8.8 ozf)
Terminals ............................................................................................................................................................................................. Gold-plated solder lugs
Soldering Condition
Manual Soldering.......................................................... 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire, 370 °C (700 °F) max. for 3 seconds
Wave Soldering...................................................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean flux, 260 °C (500 °F) max. for 5 seconds
Wash processes ...................................................................................................................................................................................... Not recommended
Mounting Hardware ........................................................................................... One lockwasher and one mounting nut is shipped with each potentiometer
Recommended Panel Thickness (Bushing Mount) ..................................................................................................................2.46-3.81 mm (0.097-0.150 in.)
Marking.........................................................................................................................Manufacturer’s symbol, model number, product code and date code
Standard Packaging ...........................................................................................................................................................................Plastic trays (5 pcs./tray)
1
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
For other options, please consult factory.
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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