81A1A-B24-D18L Bourns Inc., 81A1A-B24-D18L Datasheet - Page 2
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81A1A-B24-D18L
Manufacturer Part Number
81A1A-B24-D18L
Description
Panel Mount Potentiometers 5/8 50k 20% Square Single Turn
Manufacturer
Bourns Inc.
Datasheet
1.81A1A-B28-A15L.pdf
(6 pages)
Specifications of 81A1A-B24-D18L
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Contacts:
Power Rating (Resistive Load):
Contact Resistance (0.1 VDC-10 mA) ..................................................................................................................................................... 10 milliohms nominal
Contact Bounce ................................................................................................................................................................................ 5 milliseconds maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Insulation Resistance ....................................................................................................................................................................... 1000 megohms minimum
Operating Temperature Range ...........................................................................................................................................................................0 °C to +70 °C
Storage Temperature Range ........................................................................................................................................................................ -65 °C to +125 °C
Vibration (Dual Section) ....................................................................................................................................................................................................... 8 G
Shock (Dual Section) ......................................................................................................................................................................................................... 20 G
Rotational Life ..................................................................................................................................................................................................... 25,000 cycles
Moisture Resistance (MIL-STD-202, Method 106, Condition B)
Switch Housing Material ................................................................................................................. High temperature, fl ame retardant, thermosetting plastic
Actuating Torque (Each Section, Switch Module Only) ....................................................................................................... 3.53 to 10.6 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 ...................................................................................................................................................................................................................25 °
Contact Materials ..........................................................................................................................................................................Fine silver with gold overlay
Terminal Styles .................................................................................................................................................................................................. Solder lug only
Terminal Strength (Before and After Soldering Heat Exposure) .......................................................................................................... 0.9 Kg (2 lbs.) minimum
NOTE: Model 81/82 performance specifi cations 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.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications
Initial Electrical Characteristics
Environmental Characteristics
Mechanical Characteristics
Rotary Switch Specifi cations
DPST ...............................................................................................................................................................................N.O/N.O.,N.C./N.C. or N.O./N.C.
DPDT ................................................................................................................................................................................2 N.O./N.C. (break before make)
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
Sea Level ............................................................................................................................................................................................. 1500 VAC minimum
Contact Resistance ........................................................................................................................................................................ 10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
Contact Resistance ........................................................................................................................................................................ 10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
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
Contact Resistance (0.1 VDC-10 mA) ............................................................................................................................................ 10 milliohms maximum
Insulation Resistance (After 24 Hours @ Room Temperature) (500 VDC) .................................................................................... 100 megohms minimum
Standard Orientation ..............................................................................................................................................................In-line with control terminals
Optional .......................................................................................................................................................................... Rotated 90 ° CCW from standard
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
(Triple Section) ...................................................................................................................................................................................................... 15 G
(Quadruple Section) ............................................................................................................................................................................................. 10 G
(Triple Section) .................................................................................................................................................................................................... 5 G
(Quadruple Section) ........................................................................................................................................................................................... 3 G
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