3549S-1BB-203A Bourns Inc., 3549S-1BB-203A Datasheet
3549S-1BB-203A
Manufacturer Part Number
3549S-1BB-203A
Description
Manufacturer
Bourns Inc.
Type
Potentiometerr
Datasheet
1.3549S-1BB-203A.pdf
(4 pages)
Specifications of 3549S-1BB-203A
Resistance
20kohm
Power Rating
2W
Tolerance (+ Or -)
3%
Number Of Turns
10Turn
Technology
Wirewound
Mounting Style
Panel
Termination Style
Solder Lug
Operating Temp Range
-55C to 125C
Failure Rate
Not Required
Shaft Diameter (mm)
6mm
Product Diameter (mm)
Not Requiredmm
Product Length (mm)
40.43mm
Product Height (mm)
27.5mm
Product Depth (mm)
Not Requiredmm
Temperature Coefficient
±50
Lead Free Status / RoHS Status
Compliant
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
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)
Insulation Resistance (500 VDC) ...........................................................1,000 megohms minimum ..................................... 1,000 megohms minimum
Resolution .............................................................................................See How to Order chart ........................................ Essentially infi nite
Power Rating (Voltage Limited By Power Dissipation)
Operating Temperature Range
Temperature Coeffi cient (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)
Shock (100 Gs, 6 ms sawtooth)
Load Life (1,000 hours @ 70 °C) ............................................................±2 % TR shift ......................................................... ±5 % TR shift max.
Rotational Life
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
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
Shaft Side Load (Max. Allowable)
Terminals ............................................................................................................................................................................................. Gold-plated solder lugs
Soldering Condition
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
For other options, please consult factory.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
Electrical Characteristics
Sea Level ...........................................................................................1,000 VAC minimum............................................... 1,000 VAC minimum
+70 °C................................................................................................2 watts .................................................................... 2 watts
+125 °C..............................................................................................0 watt ..................................................................... 0 watt
Environmental Characteristics
Dynamic .............................................................................................-40 °C to +125 °C .................................................. -40 °C to +125 °C
Static .................................................................................................-55 °C to +125 °C .................................................. -55 °C to +125 °C
Wiper Bounce ....................................................................................0.1 ms max............................................................. 0.1 ms max.
Wiper Bounce ....................................................................................0.1 ms max............................................................. 0.1 ms max.
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
Mechanical Characteristics
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.
Single ...................................................................................................................................................................................................... 20 gm (0.7 oz.) typ.
Dual ....................................................................................................................................................................................................... 36 gm (1.27 oz) typ.
Nickel Plated Brass Shaft w/Brass Bushing ................................................................................................................................................. 50 gmf (1.7 ozf)
Stainless Steel Shaft w/Bronze Bushing .................................................................................................................................................... 250 gmf (8.8 ozf)
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 fl ux, 260 °C (500 °F) max. for 5 seconds
Wash processes ...................................................................................................................................................................................... Not recommended
(whichever is greater)
1
1
1
Features
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■
■
■
■
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3549 - 10-Turn Precision Potentiometer
Wirewound and Hybritron
High rotational life
Optional 0.1 % linearity
Optional A/R lug
RoHS compliant*
Suitable for use under side load
Wirewound Element
®
elements
■
■
■
Designed for HMI and MMI applications
Dual gang option
Servo mount option
Hybritron
®
Element
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3549S-1BB-203A Summary of contents
Page 1
Electrical Characteristics 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 ...
Page 2
Precision Potentiometer Product Dimensions Single Gang, Bushing Mount 18.446 ± 0.381 MOUNTING SURFACE (.726 ± .015) 14.046 ± 0.381 (.553 ± .015) 5.715 ± 0.381 (.225 ± .015) 10.287 + 0.00/-0. (.405 +0.00/-.002) BUSHING ...
Page 3
Precision Potentiometer Product Dimensions Single Gang, Servo Mount 23.86 ± 0.381 (.939 ± .015) MOUNTING SURFACE 19.46 ± 0.381 (.766 ± .015) 11.13 ± 0.381 (.438 ± .015) 15.8725 + .0000/-.0127 (.6249 +.0000/-.0005 1.575 ...
Page 4
Precision Potentiometer Panel Thickness Dimensions (For Bushing Mount Only) 2.46 - 3.81 (.097 - .150) PANEL HEX NUT LOCKWASHER POT 10.41 ± .08 DIA. (.410 ± .003) 7.42 R (.292) ADDITIONAL HOLE FOR ANTI-ROTATION PIN 1.60 +.08/-.03 ...