Model 3543 is currently available,
although not recommended for new
designs. Model 3547 is preferred.
Features
■ Bushing mount
■ Optional AR pin feature
■ Non-standard features and specifications
Model 3545 is currently available,
although not recommended for new
designs. Model 3548 is preferred.
available
■ Gangable
3543/3545 - Precision Potentiometer
Electrical Characteristics1
Standard Resistance Range ..............20 to 50 K ohms ......................50 to 50 K ohms
Total Resistance Tolerance ................ 5 ꢀ ........................................ 5 ꢀ
3543 3-Turn
3545 5-Turn
3543S-1/3545S-1
18.3
(.72)
14.35 .38
(.565 .015)
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
5.72 .38
(.225 .015)
Minimum Voltage
(whichever is greater)
(whichever is greater)
10.31+ .00/ - .05
(.406+.000/-.002)
1
Noise ..................................................100 ohms ENR maximum ........100 ohms ENR maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
DIA.
3
3/8 " 32-UNEF-2ATHD
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)
2
.25
X 45 ° CHAMFER
(.010)
+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.
ADJUSTMENT
.81
SLOT
WIDE
(.032)
.81 .25
(.032 .0160)
X
DEEP
1.52
(.06)
7.92 .38
(.312 .015)
19.05 .38
(.750 .015)
Environmental Characteristics1
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 Coefficient Over
6.342 + .000/ - .023
(.2497+.0000/-.0009)
DIA.
20.62 .79
(.812 .031)
Storage Temperature Range2 ........ 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)
ADD .75 (19 MM) FOR ADDITIONAL CUPS.
OPTIONAL ANTIROTATION LUG
1.42 X .50
7.4
RADIUS
(-91)
ON
(.056 X .02)
(.29)
LENGTH 1.27 FROM MOUNTING SURFACE.
1.6
(SUGGESTED PANEL HOLE
DIA.)
(.063)
30 °
5 °
Total Resistance Shift .................... 2 ꢀ maximum........................ 2 ꢀ maximum
IP Rating ............................................IP 40 ........................................IP 40
6.35
(.25)
Mechanical Characteristics1
15.88
(.625)
R MAX.
12.45
(.49)
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....................Recommended hand soldering using Sn95/Ag5 no clean solder,
0.025 ” wire diameter. Maximum temperature 399 °C (750 °F) for 3 seconds.
MTG. FACE
15.88
22.23 .38
(.875 .015)
DIA. MIN.
(.625)
TOLERANCES: EXCEPT WHERE NOTED
.25
(.010),
.13
(.005)
DECIMALS: .XX
.XXX
FRACTIONS: 1/64
MM
DIMENSIONS:
(IN.)
No wash process to be used with no clean flux.
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.
WIPER
2
CW
CCW
3
1
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
2Consult manufacturer for complete specification details.
CLOCKWISE
Recommended Part Numbers
BOLDFACE LISTINGS ARE IN STOCK AND READILY
Resistance
Resolution
Resistance
Resolution
AVAILABLE THROUGH DISTRIBUTION.
Part Number*
Part Number
(Ω)
(%)
(Ω)
(%)
FOR SERVO MOUNT VERSION AND OTHER OPTIONS
CONSULT FACTORY.
3543S-1-102L
3543S-1-202L
3543S-1-502L
3543S-1-103L
1,000
2,000
5,000
10,000
.077
.062
.047
.040
3545S-1-102L
3545S-1-202L
3545S-1-502L
3545S-1-103L
1,000
2,000
5,000
10,000
.043
.044
.038
.029
TERMINALS:
L = RoHS COMPLIANT
BLANK = STANDARD
REV. 06/06
*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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