Features

conditions

3549 - 10-Turn Precision Potentiometer

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Specifications are subject to change without notice.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

Users should verify actual device performance in their specific applications.

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 or Powered.......................................................................... 2,000,000 shaft revolutions .................................... 5,000,000 shaft revolutions

No Load or Powered (Dual Ball Bearing) .......................................... N/A ......................................................................... 10,000,000 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 ° +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...................................................................................................................................................................................................... 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.