NT
CO
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PL
IA
Features
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RoHS compliant*
Conductive plastic or cermet
Linear and audio tapers
PC board and bushing mount
Gangable
Metal bushing and shaft
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Sealed for board washing
*R
oH
S
51/53 - Sealed 1/2 ” (12.5 mm) Square Control
Electrical Characteristics
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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 .................................................................................................IP 64 ............................................................IP 64
Mechanical Characteristics
Stop Strength..................................................................................................................................................................................................56 N-cm (5 lb.-in.)
Mechanical Angle ........................................................................................................................................................................................................290 ° ±5 °
Torque
Starting (All Sections)............................................................................................................................Running torque +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 or Triple Section) ......................................................................................................................................0.35 to 1.8 N-cm (0.5 to 2.5 oz.-in.)
Mounting (Torque on Bushing) ..............................................................................................................................1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum
Weight (Single Section) ................................................................................................................................................................................................5.5 grams
(Each 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 Potentiometers) ....................................................................................................................................................6 cups 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: +25 °C nominal and 50 % relative humidity nominal, except as noted.
*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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