Features
■ Wirewound and Hybritron® elements
■ High rotational life
■ Designed for HMI and MMI applications
■ Dual gang option
■ Servo mount option
■ Optional 0.1 % linearity
■ Optional A/R lug
■ RoHS compliant*
■ Suitable for use under side load
3549 - 10-Turn Precision Potentiometer
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®
Electrical Characteristics
Wirewound Element
Hybritron Element
Standard Resistance Range................................................................100 to 100K ohms..................................................1K to 100K ohms
Total Resistance Tolerance..................................................................±± ꢀ ......................................................................±10 ꢀ
Independent Linearity..........................................................................±0.ꢁ ꢀ....................................................................±0.ꢁ ꢀ
Independent Linearity (Maximum Practical)........................................±0.1 ꢀ....................................................................±0.1 ꢀ
Effective Electrical Angle ....................................................................±600 ° +10 °, -0 ° ..................................................±600 ° +10 °, -0 °
Absolute Minimum Resistance/End Voltage ......................................1 ohm or 0.1 ꢀ maximum ....................................0.ꢁ ꢀ maximum
(whichever is greater)
Noise/Output Smoothness ................................................................100 ohms maximum ..............................................0.10 ꢀ maximum
Max. Wiper Current @ 5K ohms..........................................................ꢁ0 mA ....................................................................10 mA
Dielectric Withstanding Voltage (MIL-STD-ꢁ0ꢁ, Method ±01)
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 ............................................................................................ꢁ watts....................................................................ꢁ watts
+1ꢁ5 °C ..........................................................................................0 watt ....................................................................0 watt
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Environmental Characteristics
Operating Temperature Range
Dynamic ..........................................................................................-40 °C to +1ꢁ5 °C ..................................................-40 °C to +1ꢁ5 °C
Static ..............................................................................................-55 °C to +1ꢁ5 °C ..................................................-55 °C to +1ꢁ5 °C
Temperature Coefficient (Over Static Temperature Range) ................±50 ppm/°C............................................................±100 ppm/°C
Temperature Cycling (5 Cycles Over Static Temperature Range) ......±ꢁ ꢀ TR shift max.................................................±4 ꢀ TR shift max.
Vibration (15 Gs, 10 Hz to ꢁ 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)..........................................................±ꢁ ꢀ TR shift ........................................................±5 ꢀ TR shift max.
Rotational Life
No Load ..........................................................................................ꢁ,000,000 shaft revolutions ..................................5,000,000 shaft revolutions
Powered (MIL-PRF-1ꢁ9±4)..............................................................ꢁ,000,000 shaft revolutions ..................................5,000,000 shaft revolutions
Moisture Resistance (Mil-Std-ꢁ0ꢁ, Method 10±) ................................±ꢁ ꢀ TR shift max.................................................±5 ꢀ TR shift max.
IP Rating ..............................................................................................IP 50 ......................................................................IP 50
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Mechanical Characteristics
Mechanical Angle ..........................................................................................................................................................................................±600 ° +4 °, -10 °
Backlash ....................................................................................................................................................................................................................1.0 ° max.
Stop Strength................................................................................................................................................................................................5± 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.
Mounting..........................................................................................................................................................................170-ꢁ00 N-cm (15-18 in.-lb.) max.
Shaft Runout T.I.R. ......................................................................................................................................................................................0.08 mm (0.00± in.)
Lateral Runout T.I.R. ....................................................................................................................................................................................0.1± 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 (0.00± in.)
Pilot Diameter Runout T.I.R. ........................................................................................................................................................................0.08 mm (0.00± in.)
Weight
Single ......................................................................................................................................................................................................ꢁ0 gm (0.7 oz.) typ.
Dual ........................................................................................................................................................................................................±6 gm (1.ꢁ7 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 ....................................................................................................................................................ꢁ50 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) ..................................................................................................................ꢁ.46-±.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)
1At 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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