91A2A-R16-A datasheet(3/5 Pages) BOURNS

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Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

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 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.)

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.

1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

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