Features
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27 mm (1-1/16 ) diameter,
single-turn wirewound
Bushing mount
Gangable to 8 cups
Outstanding vibration and
shock performance
Shaft supported front and rear by
precision sleeve bearings
Model 3435 is currently available,
although not recommended for new
designs.
Model 6657
is preferred.
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High temperature, moisture resistant,
thermosetting plastic housing
Non-standard features and
specifications available
3435 - Precision Potentiometer
Electrical Characteristics
1
Standard Resistance Range .......................................................................................50 to 20 K ohms
Total Resistance Tolerance ...........................................................................................................±3 %
Independent Linearity ................................................................................................................±0.5 %
Effective Electrical Angle .......................................................................................................350 ° ±2 °
Noise.............................................................................................................100 ohms ENR maximum
Absolute Minimum Resistance .................................................1 ohm or 0.1 % (whichever is greater)
Dielectric Withstanding Voltage
Sea Level ..........................................................................................................1,000 VAC minimum
Power Rating
+70 °C.................................................................................................................................1.5 watts
+125 °C....................................................................................................................................0 watt
Insulation Resistance (500 VDC)..................................................................1,000 megohms minimum
Resolution ......................................................................................................See ordering information
Product Dimensions
3435
17.30
±
.38
(.681
±
.015)
22.22
±
.79
(.825
±
.031)
9.53
(.375)
1.57
(.060)
8.13
MIN.
(.32)
26.92
(1.06)
10.317 +.000/-.051
(.4062 + .000/ - .002)
30
°
±
5
°
Environmental Characteristics
1
Operating Temperature Range.....................................................................................+1 °C to 125 °C
Storage Temperature Range.....................................................................................-65 °C to +125 °C
Temperature Coefficient Over Storage Temperature Range
2
....................................±20 ppm/°C max.
Vibration (MIL-R-12934) .................................................................................................................15 G
Wiper Bounce ...........................................................................................0.1 millisecond maximum
Total Resistance Shift ..............................................................................................±5 % maximum
Voltage Ratio Shift ...................................................................................................±1 % maximum
Shock (MIL-R-12934) .....................................................................................................................50 G
Wiper Bounce ...........................................................................................0.1 millisecond maximum
Total Resistance Shift ..............................................................................................±5 % maximum
Voltage Ratio Shift ...................................................................................................±1 % maximum
Load Life .............................................................................................................................1,000 hours
Total Resistance Shift .............................................................................................2.0 % maximum
Rotational Life (No Load) ...........................................................................1,000,000 shaft revolutions
Total Resistance Shift ..............................................................................................±5 % maximum
Moisture Resistance (MIL-STD-202, Method 106)
Total Resistance Shift ..............................................................................................±5 % maximum
Humidity ................................................................................................MIL-R-12934 humidity cycling
Total Resistance Shift ..............................................................................................±5 % maximum
IP Rating ........................................................................................................................................IP 40
T
3/8 " - 32 UNEF 2A
30
°
±
5
°
CW
CCW
W
18.54
R MAX.
(.73)
3.170 +.000/-.008
(.1248 + .000/ - .0003)
SHAFT
.81 X .81
±.25
(.032 X .032
±
.010)
SLOT
NOTE: LOCKWASHER
AND HEX NUT TO BE
SUPPLIED WITH EACH UNIT.
TOLERANCES: EXCEPT WHERE NOTED
.51
.13
DECIMALS: .XX
±
.XXX
±
(.020),
(.005)
FRACTIONS:
±1/64
MM
DIMENSIONS:
(IN.)
Mechanical Characteristics
1
Mechanical Angle ................................................................................................................Continuous
Torque
Starting .......................................................................................0.18 N-cm (0.25 oz.-in.) maximum
Running ......................................................................................0.18 N-cm (0.25 oz.-in.) maximum
Additional Cups........................................................................................................Add 75 % each
Mounting.............................................................................170-200 N-cm (15-18 lb.-in.) maximum
Shaft Runout................................................................................................0.025 mm (0.001 in.) T.I.R.
Shaft End Play ...............................................................................................0.08 mm (0.003 in.) T.I.R.
Shaft Radial Play ...........................................................................................0.08 mm (0.003 in.) T.I.R.
Backlash ......................................................................................................................0.25 ° maximum
Weight..................................................................................................................Approximately 23 gm
Terminals ...........................................................................................................Gold-plated turret type
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
Marking ................................Manufacturer’s name and part number, resistance value and tolerance,
linearity tolerance, wiring diagram, date code
Ganging (Multiple Section Potentiometers) ...............................................................8 cups maximum
Hardware ....................................................One lockwasher (H-37-2) and one mounting nut (H-38-2)
is shipped with each potentiometer.
1
2
2
CCW
WIPER
1
CLOCKWISE
3
CW
Recommended Part Numbers
Part
Number
3435S-1-102
3435S-1-202
3435S-1-502
3435S-1-103
3435S-1-503
Resistance Resolution
(Ω)
(%)
1,000
2,000
5,000
10,000
50,000
.208
.178
.135
.107
.057
At room ambient: +25 ¡C nominal and 50 % relative humidity nominal, except as noted.
Consult factory for complete specification details.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.