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3548S-1BD-203B

Description
Potentiometer, Wire Wound, 1.5W, 20000ohm, 3% +/-Tol, -50,50ppm/Cel, 5 Turn(s), ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size408KB,4 Pages
ManufacturerBourns
Websitehttp://www.bourns.com
Environmental Compliance  
Download Datasheet Parametric View All

3548S-1BD-203B Overview

Potentiometer, Wire Wound, 1.5W, 20000ohm, 3% +/-Tol, -50,50ppm/Cel, 5 Turn(s), ROHS COMPLIANT

3548S-1BD-203B Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerBourns
package instructionROHS COMPLIANT
Reach Compliance Code_compli
Actuator directionHORIZONTAL
Actuator typeSHAFT
structureRound
gang number1
JESD-609 codee4
Manufacturer's serial number3548
Installation featuresPANEL MOUNT
Number of terminals3
number of turns5
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package diameter22.479 mm
Package length19.812 mm
Package shapeCIRCULAR PACKAGE
Package formPanel Mou
method of packingTRAY
Rated power dissipation(P)1.5 W
Rated temperature70 °C
resistance20000 Ω
resistance lawLINEAR
Resistor typePOTENTIOMETER
rotation angle1800 deg
series3548
surface mountNO
technologyWIRE WOUND
Temperature Coefficient-50,50 ppm/°C
Terminal surfaceGold (Au)
Terminal shapeLUG
Tolerance3%
PL
IA
NT
Features
Wirewound and Hybritron
®
elements
High rotational life
Optional 0.15 % linearity
Optional A/R lug
RoHS compliant*
Suitable for use under side load
Designed for HMI and MMI applications
Dual gang option
Servo mount option
*R
oH
S
CO
M
3548 - 5-Turn Precision Potentiometer
Electrical Characteristics
1
Wirewound Element
Hybritron
®
Element
Standard Resistance Range..................................................................500 to 50K ohms ....................................................1K to 10K ohms
Total Resistance Tolerance....................................................................±3 % .......................................................................±10 %
Independent Linearity ............................................................................±0.25 % ..................................................................±0.25 %
Independent Linearity (Maximum Practical) ..........................................±0.15 % ..................................................................±0.15 %
Effective Electrical Angle .......................................................................1800 ° +10 °, -0 °....................................................1800 ° +10 °, -0 °
Absolute Minimum Resistance/End Voltage ..........................................1 ohm or 0.1 % maximum ......................................0.4 % 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................................................................................................1.5 watts .................................................................1.5 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 .............................................................................................1,000,000 shaft revolutions ...................................2,500,000 shaft revolutions
Powered (MIL-PRF-12934)................................................................1,000,000 shaft revolutions ...................................2,500,000 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 ...........................................................................................................................................................................................1800 ° +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 .................................................................................................................................................................................................... 19 gm (0.67 oz.) typ.
Dual ..................................................................................................................................................................................................... 35 gm. (1.23 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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