Datasheet

Features
■ Bushing mount
■ Optional AR pin feature
■ Non-standard features and specifi cations available
■ Gangable
■ RoHS compliant*
3543/3545 - Precision Potentiometer
*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.
Electrical Characteristics
1
3543 3-Turn 3545 5-Turn
Standard Resistance Range................20 to 50 K ohms .........................50 to 50 K ohms
Total Resistance Tolerance .................. ±5 % ...........................................±5 %
Independent Linearity ..........................±0.25 % ......................................±0.25 %
Effective Electrical Angle .....................1080 ° +10 °, -0 ° .......................1800 ° +10 °, -0 °
Absolute Minimum Resistance/ ...........1 ohm or 0.1 % maximum ..........1 ohm or 0.1 % maximum
Minimum Voltage ............................. (whichever is greater).................(whichever is greater)
Noise .................................................. 100 ohms ENR maximum ..........100 ohms ENR maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level .........................................1,000 VAC minimum ..................1,000 VAC minimum
Power Rating (Voltage Limited By Power Dissipation or
224 VAC [3543] or 273 VAC [3545], Whichever Is Less)
+70 °C ..............................................1 watt..........................................1.5 watt
+125 °C ............................................0 watt..........................................0 watt
Insulation Resistance (500 VDC) ........ 1,000 megohms minimum ..........1,000 megohms minimum
Resolution............................................See recommended part nos. .....See recommended part nos.
Environmental Characteristics
1
Operating Temperature Range ............ +1 °C to +125 °C ........................+1 °C to +125 °C
Storage Temperature Range ...............-55 °C to +125 °C .......................-55 °C to +125 °C
Temperature Coeffi cient Over
Storage Temperature Range
2
.......... ±50 ppm/°C maximum/unit .........±50 ppm/°C maximum/unit
Vibration .............................................. 15 G ...........................................15 G
Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum
Shock...................................................50 G ...........................................50 G
Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum
Load Life ..............................................1,000 hours, 1 watt.....................1,000 hours, 1.5 watts
Total Resistance Shift ......................±2 % maximum ..........................±2 % maximum
Rotational Life (No Load).....................300,000 shaft revolutions ...........500,000 shaft revolutions
Total Resistance Shift ......................±5 % maximum ..........................±5 % maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift ......................±2 % maximum ..........................±2 % maximum
IP Rating .............................................. IP 40 ...........................................IP 40
Mechanical Characteristics
1
Stop Strength.................................................................................................53 N-cm (75 oz.-in.) min.
Mechanical Angle ................................................. 1080 ° +10 °, -0 ° (3543); 1800 ° +10 °, -0 ° (3545)
Torque (Starting & Running) .....................................................................0.35 N-cm (0.5 oz.-in.) max.
Mounting .............................................................................................. 170-200 N-cm (15-18 lb.-in.)
Shaft Runout.................................................................................................0.08 mm (0.003 in.) T.I.R.
Lateral Runout ..............................................................................................0.13 mm (0.005 in.) T.I.R.
Shaft End Play ..............................................................................................0.25 mm (0.010 in.) T.I.R.
Shaft Radial Play ..........................................................................................0.08 mm (0.003 in.) T.I.R.
Pilot Diameter Runout ..................................................................................0.08 mm (0.003 in.) T.I.R.
Backlash ....................................................................................................................... 1.0 ° maximum
Weight .................................................................................................................Approximately 21 gm
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 fl ux; 260 °C (500 °F) max.
for 5 seconds
Wash processes ..................................................................................................Not recommended
Marking ................................................. Manufacturer’s name and part number, resistance value and
tolerance, linearity tolerance, wiring diagram, and date code.
Ganging (Multiple Section Pots.) ............................................................................... 2 cups maximum
Hardware ....................................................One lockwasher (H-37-2) and one mounting nut (H-38-2)
is shipped with each potentiometer.
1
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
2
Consult manufacturer for complete specifi cation details.
Product Dimensions
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR SERVO MOUNT VERSION AND OTHER OPTIONS
CONSULT FACTORY.
ROHS IDENTIFIER:
L = COMPLIANT
Recommended Part Numbers
Part Number Resistance (Ω) Resolution (%)
3543S-1-102L 1,000 .077
3543S-1-202L 2,000 .062
3543S-1-502L 5,000 .047
3543S-1-103L 10,000 .040
*RoHS COMPLIANT
Part Number Resistance (Ω) Resolution (%)
3545S-1-102L 1,000 .043
3545S-1-202L 2,000 .044
3545S-1-502L 5,000 .038
3545S-1-103L 10,000 .029
3543S-1/3545S-1
1
18.3
(.72)
5.72 ± .38
(.225 ± .015)
10.31+ .00/ - .05
(.406+.000/-.002)
3/8 " 32-UNEF-2ATHD
ADJUSTMENT
SLOT WIDE
X
.81±.25
DEEP
2
3
1.52
(.06)
7.92 ± .38
(.312 ± .015)
19.05 ± .38
(.750 ± .015)
20.62 ± .79
(.812 ± .031)
30 °
± 5 °
6.35
(.25)
22.23 ± .38
(.875 ± .015)
MTG. FACE
15.88
DIA. MIN.
12.45
(.49)
1
3
CW
CLOCKWISE
CCW
2
WIPER
14.35 ± .38
(.565 ± .015)
DIA.
(.032±.0160)
.81
(.032)
6.342 + .000/ - .023
(.2497+.0000/-.0009)
DIA.
OPTIONAL ANTIROTATION LUG
(-91)
1.42 X .50
ON
7.4
RADIUS
LENGTH 1.27 FROM MOUNTING SURFACE.
(SUGGESTED PANEL HOLE
1.6
DIA.)
(.056 X .02)
(.29)
(.063)
(.625)
TOLERANCES: EXCEPT WHERE NOTED
.25 .13
DECIMALS: .XX ±
(.010),
.XXX ±
(.005)
FRACTIONS: ±1/64
MM
DIMENSIONS:
(IN.)
ADD .75 (19 MM) FOR ADDITIONAL CUPS.
.25
(.010)
X 45 ° CHAMFER
15.88
(.625)
R MAX.