Features
■ RoHS compliant*
■ Conductive plastic or cermet
■ Linear and audio tapers
■ PC board and bushing mount
■ Gangable
■ Metal bushing and shaft
■ Sealed for board washing
51/53 - Sealed 1/2 ” (12.5 mm) Square Control
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Electrical Characteristics
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 ±ꢁ0 ꢀ.................................... ±10 ꢀ or ±5 ꢀ
Audio Tapers ........................................................................................±10 ꢀ or ±ꢁ0 ꢀ.................................... ±10 ꢀ
Independent Linearity.................................................................................±5 ꢀ...................................................... ±5 ꢀ
Absolute Minimum Resistance...................................................................ꢁ ohms maximum.................................. ꢁ ohms maximum
Effective Electrical Angle............................................................................ꢁ70 ° ±5 ° .............................................. ꢁ70 ° ±5 °
Contact Resistance Variation .....................................................................ꢁ ꢀ........................................................ ꢁ ꢀ
Dielectric Withstanding Voltage (MIL-STD-ꢁ0ꢁ – 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 1ꢁ5 °C)
(Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)
Linear Tapers........................................................................................0.5 watt.................................................. 1.0 watt
Audio Tapers ........................................................................................0.ꢁ5 watt................................................ 0.5 watt
Theoretical Resolution................................................................................Essentially infinite.................................. Essentially infinite
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Environmental Characteristics
Operating Temperature Range ...................................................................+1 °C to +1ꢁ5 °C................................... +1 °C to +1ꢁ5 °C
Storage Temperature Range ......................................................................-55 °C to +1ꢁ5 °C.................................. -55 °C to +1ꢁ5 °C
Temperature Coefficient Over Storage Temperature Range ......................±1,000 ppmꢂ°C...................................... ±150 ppmꢂ°C
Vibration (Single Section) ...........................................................................15 G....................................................... 15 G
Total Resistance Shift...........................................................................±ꢁ ꢀ maximum..................................... ±ꢁ ꢀ maximum
Voltage Ratio Shift................................................................................±5 ꢀ maximum..................................... ±5 ꢀ maximum
Shock (Single Section) ...............................................................................30 G....................................................... 30 G
Total Resistance Shift...........................................................................+ꢁ ꢀ maximum..................................... ±ꢁ ꢀ 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 ........................................ ꢁ5,000 cycles
Total Resistance Shift...........................................................................±10 ꢀ TRS maximum........................... ±10 ꢀ TRS maximum
Contact Resistance Variation @ ꢁ5,000 Cycles ...................................±ꢁ ꢀ...................................................... ±± ꢀ
Moisture Resistance (MIL-STD-ꢁ0ꢁ, Method 103, Condition B)
Total Resistance Shift...........................................................................±10 ꢀ TRS............................................ ±5 ꢀ TRS
IP Rating.....................................................................................................IP 6± ...................................................... IP 6±
Mechanical Characteristics
Stop Strength ............................................................................................................................................................................................... 56 N-cm (5 lb.-in.)
Mechanical Angle...................................................................................................................................................................................................... ꢁ90 ° ±5 °
Torque
Starting (Dual Sections).............................................................................................................................................. +0.35 N-cm (+0.5 oz.-in.) maximum
Running (Single Section).............................................................................................................................................0.15 to 1.± N-cm (0.ꢁ to ꢁ.0 oz.-in.)
Running (Dual Section)................................................................................................................................................0.35 to 1.8 N-cm (0.5 to ꢁ.5 oz.-in.)
Mounting (Torque on Bushing)..........................................................................................................................1.7 to ꢁ.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 Sn95ꢂAg5 no clean solder, 0.0ꢁ5 ” 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 ꢁ60 °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) ............................................................................................................................................ ꢁ sections maximum**
Hardware...........................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
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At room ambient: +ꢁ5 °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.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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