99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Potentiometer Specifications
Initial Electrical Characteristics
1
Conductive Plastic Element
Cermet Element
Standard Resistance Range
Linear Tapers (A, B, E, & H) ................................................................(B & E) 1 K ohms to 1 megohm ......................(A & H) 100 ohms to 1 megohm
Audio Tapers (C, D, F, G, S, & T).........................................................(D,G,S, & T) 1 K ohms to 1 megohm ..............(C & F) 1 K ohms to 1 megohm
Total Resistance Tolerance .....................................................................10 % or 20 % .................................................5% or 10%
+125 °C ..............................................................................................0 watt..............................................................0 watt
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 % maximum ............................................±5 % maximum
Rotational Life (No Load) ........................................................................100,000 cycles ...............................................100,000 cycles
Total Resistance Shift.........................................................................(Linear tapers) 10 ohms or ±15 % TRS max. ...(All tapers) ±5 % TRS max.
Moisture Resistance (MIL-STD-303, Method 103, Condition B)
Total Resistance Shift.........................................................................(Linear tapers) ±10 % TRS maximum ............(All tapers) ±5 % TRS maximum
Starting ....................................................................................................................................................................0.3 max. above average running torque
Running Torque
Single or Dual Section (A ,D & R Bushings) ..............................................................................................................0.21 to 1.06 N-cm (0.3 to 1.5 oz.-in.)
Single or Dual Section (C & U Bushings) ..................................................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)
Mounting ............................................................................................................................................(Metal Bushing) 1.7-2.0 N-m (15-18 lb.-in.) maximum
Plastic Bushing) 56-79 N-cm (5-7 lb.-in.) maximum
Variation ................................................................................................................................................0.35 N-cm (0.5 oz.-in.) maximum in 45 ° shaft travel
Weight (Single Section) ..................................................................................................................................................................................7 grams maximum
(Each Additional Section) ..........................................................................................................................................................................4 grams maximum
Terminals..........................................................................................................................................................Printed circuit terminals, J-Hooks or solder lugs
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.
Marking............................................................................................................Manufacturer’s trademark, date code, resistance, manufacturer’s part number
Ganging (Multiple Section Potentiometers)......................................................................................................................................................2 cups maximum
Hardware ............................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
NOTE: ALL MODEL 90 PERFORMANCE SPECIFICATIONS DO NOT APPLY TO UNITS SUBJECTED TO PRINTED CIRCUIT BOARD CLEANING PROCEDURES, EXCEPT FOR THE SEALED
VERSION (MODEL 96).
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.
99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Rotary Switch Specifications
Initial Electrical Characteristics
1
Contacts:
DPST ..................................................................................................................................................................................N.O/N.O., N.C./N.C. or N.O./N.C.
DPDT....................................................................................................................................................................................2 N.O./N.C. (break before make)
Power Rating (Resistive Load):
DPST ................................................................................................................2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz
DPDT ..............................................................................................................................................................1 A @ 125 volts RMS-60 Hz or 1 A @ 28 VDC
Contact Bounce ..................................................................................................................................................................................5 milliseconds maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Operating Temperature Range ............................................................................................................................................................................0 °C to +70 °C
Exposure Temperature Range ........................................................................................................................................................................-65 °C to +125 °C
Vibration (Dual Section) ..........................................................................................................................................................................................................8 G
Contact Resistance ............................................................................................................................................................................10 milliohms maximum
Contact Bounce..............................................................................................................................................................................0.1 millisecond maximum
Shock (Dual Section) ............................................................................................................................................................................................................20 G
Contact Resistance ............................................................................................................................................................................10 milliohms maximum
Contact Bounce..............................................................................................................................................................................0.1 millisecond maximum
Rotational Life ........................................................................................................................................................................................................25,000 cycles
Switch Actuating Torque (50% Duty cycle @ Rated Power Load) ......................................................................................1.41 to 4.94 N-cm (2 to 7 oz.-in.)
Contact Resistance ..........................................................................................................................................................................100 milliohms maximum
Moisture Resistance (MIL-STD-202, Method 106, Condition B)
Contact Resistance (0.1 VDC-10 mA) ................................................................................................................................................10 milliohms maximum
Housing Material ................................................................................................................................High temperature, flame retardant, thermosetting plastic
Mechanical Characteristics
1
Actuating Torque (Each Section, Switch Module Only) ......................................................................................................3.53 to 10.59 N-cm (5 to 15 oz.-in.)
Running Torque (Out of Detent, 2-4 Module Assembly) ......................................................................................................0.21 to 1.41 N-cm (0.3 to 2 oz.-in.)
Detent........................................................................................................................................................................................................CW or CCW standard
Contact Materials ............................................................................................................................................................................Fine silver with gold overlay
Terminal Styles ....................................................................................................................................................................................................Solder lug only
Standard Orientation ..................................................................................................................................................................In-line with control terminals
Optional ..............................................................................................................................................................................Rotated 90 ° CCW from standard
Terminal Strength (Before and After Soldering Heat Exposure)..............................................................................................................0.9 kg (2 lbs.) minimum
NOTE: Model 99 performance specifications do not apply to units subjected to printed circuit board cleaning procedures.
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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