PL
IA
N
Features
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RoHS compliant*
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Conductive plastic or cermet
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Linear and audio tapers
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PC board and bushing mount
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Gangable
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Metal bushing and shaft
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Sealed for board washing
*R
oH
S
CO
M
T
51/53 - Sealed 1/2 ” (12.5 mm) Square Control
Electrical Characteristics
1
Conductive Plastic
Cermet
Standard Resistance Range
Linear ...................................................................................................1 K ohms to 1 megohm ......................... 150 ohms to 1 megohm
Audio ....................................................................................................1 K ohms to 1 megohm ......................... 1 K ohms to 1 megohm
Total Resistance Tolerance
Linear Tapers ........................................................................................±10 % or ±20 % .................................... ±10 % or ±5 %
Audio Tapers ........................................................................................±10 % or ±20 % .................................... ±10 %
Independent Linearity .................................................................................±5 % ...................................................... ±5 %
Absolute Minimum Resistance ...................................................................2 ohms maximum .................................. 2 ohms maximum
Effective Electrical Angle ............................................................................270 ° ±5 ° .............................................. 270 ° ±5 °
Contact Resistance Variation .....................................................................2 % ........................................................ 2 %
Dielectric Withstanding Voltage (MIL-STD-202 – Method 301)
Sea Level ..............................................................................................1,500 VAC minimum .............................. 1,500 VAC minimum
70,000 ..................................................................................................500 VAC minimum ................................. 500 VAC minimum
Insulation Resistance .................................................................................1,000 megohms minimum ..................... 1,000 megohms minimum
Power Rating At 70 °C (Derate To 0 At 125 °C)
(Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)
Linear Tapers ........................................................................................0.5 watt.................................................. 1.0 watt
Audio Tapers ........................................................................................0.25 watt................................................ 0.5 watt
Theoretical Resolution ................................................................................Essentially infinite .................................. Essentially infinite
Environmental Characteristics
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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 Storage Temperature Range ......................±1,000 ppm/°C ...................................... ±150 ppm/°C
Vibration (Single Section) ...........................................................................15 G ....................................................... 15 G
Total Resistance Shift ...........................................................................±2 % maximum ..................................... ±2 % maximum
Voltage Ratio Shift ................................................................................±5 % maximum ..................................... ±5 % maximum
Shock (Single Section) ...............................................................................30 G ....................................................... 30 G
Total Resistance Shift ...........................................................................+2 % maximum ..................................... ±2 % maximum
Voltage Ratio Shift ................................................................................±5 % maximum ..................................... ±5 % maximum
Load Life.....................................................................................................1,000 hours ........................................... 1,000 hours
Total Resistance Shift ...........................................................................±10 % TRS maximum ........................... ±5 % TRS maximum
Rotational Life (No Load) ............................................................................50,000 cycles ........................................ 25,000 cycles
Total Resistance Shift ...........................................................................±10 % TRS maximum ........................... ±10 % TRS maximum
Contact Resistance Variation @ 25,000 Cycles ...................................±2 % ...................................................... ±4 %
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift ...........................................................................±10 % TRS ............................................ ±5 % TRS
IP Rating
Entire Unit.............................................................................................IP64 ....................................................... IP64
Shaft/Bushing.......................................................................................IP65 ....................................................... IP65
Mechanical Characteristics
Stop Strength ............................................................................................................................................................................................... 56 N-cm (5 lb.-in.)
Mechanical Angle ...................................................................................................................................................................................................... 290 ° ±5 °
Torque
Starting (Dual Sections).............................................................................................................................................. +0.35 N-cm (+0.5 oz.-in.) maximum
Running (Single Section) ............................................................................................................................................. 0.15 to 1.4 N-cm (0.2 to 2.0 oz.-in.)
Running (Dual Section) ................................................................................................................................................ 0.35 to 1.8 N-cm (0.5 to 2.5 oz.-in.)
Detent (Single Section) ...................................................................................................................................................1.94 N-cm (2.75 oz.-in.) minimum
Mounting (Torque on Bushing) .......................................................................................................................... 1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum
Weight (Single Section).............................................................................................................................................................................................. 5.5 grams
(Additional Section) ............................................................................................................................................................................................. 3.0 grams
Terminals ................................................................................................................................................................................................... PC pin or solder lug
Soldering Condition .................................................................. Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ” wire diameter.
Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean flux.
Part can be wave soldered at 260 °C (500 °F) for 5 seconds, no wash process with no clean flux.
Marking.................................................................................................................. Manufacturer’s trademark, part number, resistance value and date code.
Ganging (Multiple Section Potentiometer) ............................................................................................................................................ 2 sections maximum**
Hardware ...........................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
1
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
** Additional sections available on special request with higher minimum order quantities.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
ST - Low Power RF
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