CO
M
PL
IA
NT
Features
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RoHS compliant*
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CW or CCW rotary switch
■
Linear and audio tapers
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PC board and bushing mount
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Splash seal
■
Metal bushing and shaft
Applications
■
Test and measurement equipment
■
Avionics controls
■
Communications equipment
■
Medical laboratory equipment
*R
oH
S
56 - Sealed 1/2 ” (12.5 mm) Panel Control w/Rotary Switch
Electrical Characteristics
1
Standard Resistance Range
Linear ......................................................................................................................................................................................................1K to 500K ohms
Audio .......................................................................................................................................................................................................1K to 500K ohms
Total Resistance Tolerance
B & D Tapers ............................................................................................................................................................................................................ ±20 %
E & S Tapers ............................................................................................................................................................................................................. ±10 %
Independent Linearity ....................................................................................................................................................................................................... ±5 %
Absolute Minimum Resistance ..................................................................................................................................................................... 2 ohms maximum
Effective Electrical Angle ............................................................................................................................................................................................. 240 ° ±5
Contact Resistance Variation ........................................................................................................................................................................................... ±2 %
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ............................................................................................................................................................................................ 1,500 VAC minimum
70,000 ................................................................................................................................................................................................... 500 VAC minimum
Insulation Resistance ...................................................................................................................................................................... 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
Audio Tapers ........................................................................................................................................................................................................0.25 watt
Theoretical Resolution .................................................................................................................................................................................. Essentially infinite
Environmental Characteristics
1
Operating Temperature Range ...................................................................................................................................................................... +1 °C to +125 °C
Storage Temperature Range ........................................................................................................................................................................-55 °C to +125 °C
Temperature Coefficient Over Storage Temperature Range ............................................................................................................................ ±1,000 ppm/°C
Vibration .............................................................................................................................................................................................................................. 8 G
Total Resistance Shift ................................................................................................................................................................................ ±2 % maximum
Voltage Ratio Shift ..................................................................................................................................................................................... ±5 % maximum
Shock ................................................................................................................................................................................................................................ 20 G
Total Resistance Shift ................................................................................................................................................................................ +2 % maximum
Voltage Ratio Shift ..................................................................................................................................................................................... ±5 % maximum
Load Life.................................................................................................................................................................................................................1,000 hours
Total Resistance Shift ...................................................................................................................................................................... ±10 % TRS maximum
Rotational Life (No Load) .....................................................................................................................................................................................50,000 cycles
Total Resistance Shift ...................................................................................................................................................................... ±10 % TRS maximum
Contact Resistance Variation ..................................................................................................................................................................................... ±2 %
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
B & E Taper....................................................................................................................................................................................................... ±10 % TRS
D & S Taper ...................................................................................................................................................................................................... ±20 % TRS
IP Rating
Entire Unit................................................................................................................................................................................................................... IP 64
Shaft/Bushing............................................................................................................................................................................................................. IP 65
Mechanical Characteristics
Stop Strength ............................................................................................................................................................................................... 56 N-cm (5 lb.-in.)
Mechanical Angle ...................................................................................................................................................................................................... 290 ° ±5 °
Torque
Running/Starting ........................................................................................................................................................ 0.2 to 1.3 N-cm (0.25 to 2.0 oz.-in.)
Mounting (Torque on Bushing) .......................................................................................................................... 1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum
Weight ....................................................................................................................................................................................................................... 8.5 grams
Terminals ........................................................................................................................................................................................................................ PC pin
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) .................................................................................... Inquire for availability, minimum order quantity and price.
Hardware ...........................................................................................................One lockwasher and one mounting nut is shipped with each potentiometer.
1
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.
56 - Sealed 1/2 ” (12.5 mm) Panel Control w/Rotary Switch
Initial Electrical Characteristics - Switch
Switch Type ......................................................................................................................................................................SPDT (Break before make)
Power Rating (Resistive Load) ..........................................................................................................................................................0.5 A @ 30 VDC
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ................................................................................................................................................................................. 1000 VAC minimum
Insulation Resistance ........................................................................................................................................................ 1000 megohms minimum
Contact Resistance ............................................................................................................................................................... 30 milliohms maximum
Contact Bounce ................................................................................................................................................................. 5 milliseconds maximum
Actuation Angle ................................................................................................................................................................................... 35 ° maximum
Switch Travel ....................................................................................................................................................................................... 25 ° maximum
Detent Torque ...............................................................................................................................................................1.3 N-cm (2.0 oz.-in) nominal
Environmental Characteristics
1
Vibration ............................................................................................................................................................................................................... 8 G
Contact Resistance ............................................................................................................................................................ 30 milliohms maximum
Contact Bounce ............................................................................................................................................................ 0.1 milliseconds maximum
Shock ................................................................................................................................................................................................................. 20 G
Contact Resistance ............................................................................................................................................................ 30 milliohms maximum
Contact Bounce ............................................................................................................................................................ 0.1 milliseconds maximum
Rotational Life @ Rated Power ............................................................................................................................................................. 50,000 cycles
Contact Resistance .......................................................................................................................................................... 100 milliohms maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Contact Resistance ............................................................................................................................................................ 30 milliohms maximum
Insulation Resistance (After 24 Hours @ Room Temperature - 500 VDC) ........................................................................ 100 megohms minimum
1
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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