3549 - 10-Turn Precision Potentiometer

Features

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High rotational life

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Optional 0.1 % linearity

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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

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Dual gang option

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Servo mount option

Wirewound Element

Standard Resistance Range ................................................................100 to 100K ohms..................................................1K to 100K ohms

Total Resistance Tolerance ..................................................................±3 % ......................................................................±10 %

Independent Linearity ..........................................................................±0.2 %....................................................................±0.2 %

Independent Linearity (Maximum Practical) ........................................±0.1 %....................................................................±0.1 %

Effective Electrical Angle ....................................................................3600 ° +10 °, -0 ° ..................................................3600 ° +10 °, -0 °

Absolute Minimum Resistance/End Voltage ......................................1 ohm or 0.1 % maximum ....................................0.2 % maximum

(whichever is greater)

Noise/Output Smoothness ................................................................100 ohms maximum ..............................................0.10 % 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 ............................................................................................2 watts....................................................................2 watts

+125 °C ..........................................................................................0 watt ....................................................................0 watt

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 ........................................................±5 % TR shift max.

Rotational Life

No Load ..........................................................................................2,000,000 shaft revolutions ..................................5,000,000 shaft revolutions

Powered (MIL-PRF-12934)..............................................................2,000,000 shaft revolutions ..................................5,000,000 shaft revolutions

Moisture Resistance (Mil-Std-202, Method 103) ................................±2 % TR shift max. ................................................±5 % TR shift max.

IP Rating ..............................................................................................IP 50 ......................................................................IP 50

Mechanical Angle ..........................................................................................................................................................................................3600 ° +4 °, -10 °

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.

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 ......................................................................................................................................................................................................20 gm (0.7 oz.) typ.

Dual ........................................................................................................................................................................................................36 gm (1.27 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)

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.