Features
■ RoHS compliant*
■ Sealed for board washing
■ Conductive plastic or cermet
■ Linear and audio tapers
■ PC board and bushing mount
■ Gangable
■ Metal bushing and shaft
51/53 - Sealed 1/2 ” (12.5 mm) Square Control
Electrical Characteristics1
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
Environmental Characteristics1
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 (All Sections)............................................................................................................................Running torque +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 or Triple 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
(Each 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 Potentiometers) ....................................................................................................................................................6 cups maximum
Hardware ............................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
1At 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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