91A1A-B28-B17L Datasheet, PDF (3/5 Pages) Bourns Electronic Solutions – 91, 92, 93, 94, 95, 96, 99 - 5/8 ” Square Single-Turn Panel Control 99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch

91, 92, 93, 94, 95, 96, 99 - 5/8 ” Square Single-Turn Panel Control
99 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Rotary Switch Specifications
Initial Electrical Characteristics¹
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 Resistance (0.1 VDC-10 mA)........................................................................................................................................................10 milliohms nominal
Contact Bounce ..................................................................................................................................................................................5 milliseconds maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ................................................................................................................................................................................................1500 VAC minimum
Insulation Resistance ..........................................................................................................................................................................1000 megohms minimum
Environmental Characteristics¹
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
Insulation Resistance (After 24 Hours @ Room Temperature) (500 VDC) ........................................................................................100 megohms minimum
Housing Material ................................................................................................................................High temperature, flame retardant, thermosetting plastic
Mechanical Characteristics¹
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
Actuation Angle..............................................................................................................................................................................................................20 ° ±5 °
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.