85/86 – 5/8 ˝ Square Single-Turn Panel Control with Rotary Switch
Potentiometer Specifications
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................................................................................. ±20 % or 10 %............................................ ±10 % or 5 %
Operating Temperature Range ........................................................................... -40 °C to +125 °C ....................................... -40 °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 taper) 10 ohms or .......................... (All tapers) ±5 % TRS maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift .................................................................................. (B & E tapers) ±10 % maximum ................ ±5 % maximum (all tapers)
Starting and Running Torque (Non-Locking Bushings)
Single Section..................................................................................................................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)
Dual Section ....................................................................................................................................................................................0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)
Triple Section ...................................................................................................................................................................................0.35 to 1.41 N-cm (0.5 to 2.0 oz.-in.)
Quadruple Section ...........................................................................................................................................................................0.35 to 1.41 N-cm (0.5 to 2.0 oz.-in.)
Starting and Running Torque (Locking Bushings) ....................................................................................................................0.14 to 2.82 N-cm (0.2 to 4.0 oz.-in.)
Shaft Locking Torque with Locknut @ 10 in-lb. (B & E Bushings) .......................................................................................................................14 N-cm (20 oz-in.)
Mounting ...................................................................................................................................................................................1.7-2.0 N-m (15-18 lb.-in.) maximum
Weight (Single Section) ............................................................................................................................................................................................. 21 grams maximum
(Each Additional Section)...................................................................................................................................................................................... 6 grams maximum
Terminals ...........................................................................................................................................................................................Printed circuit terminals or J-Hooks
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, wiring diagram, date code and resistance, manufacturer’s part number
Ganging (multiple section potentiometers) ...................................................................................................................................................................... 4 cup maximum
Hardware ...............One lockwasher and one mounting nut is shipped with each potentiometer; locking bushing versions are shipped with one additional locking nut
For dimensional drawings see pages 3 & 4. For ordering information see page 5.
NOTE: Model 81/82 performance specifications do not apply to units subjected to printed circuit board cleaning procedures.
1
Electrical specifications tested at 250 RPM, at room ambient: +25 °C nominal.
Initial Electrical Characteristics
1
Conductive Plastic Element
Cermet Element
Environmental Characteristics
1
Mechanical Characteristics
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
81/82 – 5/8 ˝ Square Single-Turn Panel Control
85/86 – 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.
Power Rating (Resistive Load):
DPST ..........................................................................................................2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz
Operating Temperature Range ...................................................................................................................................................................... -40 °C to +70 °C
Storage Temperature Range ....................................................................................................................................................................... -65 °C to +125 °C
Vibration (Dual Section)......................................................................................................................................................................................................8 G
(Triple Section) ..................................................................................................................................................................................................5 G
(Quadruple Section) ..........................................................................................................................................................................................3 G
Contact Resistance .......................................................................................................................................................................10 milliohms maximum
Contact Bounce ......................................................................................................................................................................... 0.1 millisecond maximum
Shock (Dual Section) ........................................................................................................................................................................................................20 G
(Triple Section) ....................................................................................................................................................................................................15 G
(Quadruple Section) ............................................................................................................................................................................................10 G
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
Moisture Resistance (MIL-STD-202, Method 106, Condition B)
Contact Resistance (0.1 VDC-10 mA) ..........................................................................................................................................10 milliohms maximum
Switch Housing Material ................................................................................................................. High temperature, flame retardant, thermosetting plastic
Mechanical Characteristics
1
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
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
1
NOTE: Model 81/82 performance specifications do not apply to units subjected to printed circuit board cleaning procedures.
Electrical specifications tested at 250 RPM, at room ambient: +25 °C nominal.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Terminal outlines shown as solid lines represent PC Pins, available
on Model 81. Dashed line terminal outline represents "J" Hook,
available on Model 82.
5.97 ± .38
(.235 ± .015)
5.08 ± .38
(.200 ± .015)
12.7
(.50)
5.33 ± .76
(.210 ± .03)
10.16 ± .13
(.400 ± .005)
Note: For units with dual concentric shaft styles, a
2.54 (.100) spacer is added between the module(s) driven
by the outer shaft and those driven by the inner shaft.
For G, K, or V shafts, add the spacer between
modules 1 and 2. For L or M shafts, add the spacer
between modules 2 and 3. For N or P shafts, add the
spacer between modules 3 and 4.
SLOTTED SHAFT
*EXCLUDES MODELS 83 AND 84
DIMENSIONS:
MM
(INCHES)
Suggested Panel Layout
B
C
BUSHING
A, B & J
E
DIM A
9.91
(.39)
ANTI-ROTATION LUG
A
B
C
E
F
J
K
DIM B
7.75
(.305)
7.75
(.305)
N/A
13.49
(.531)
N/A
9.53
(.375)
9.53
(.375)
DIM C
N/A
7.75
(.305)
7.75
(.305)
N/A
N/A
N/A
9.53
(.375)
DIM D
N/A
N/A
N/A
N/A
7.75
(.305)
N/A
N/A
DIM E
2.49
(.098)
2.49
(.098)
2.49
(.098)
3.45
(.136)
2.54
(.100)
2.54
(.100)
2.54
(.100)
D
A
C, E & N
R&S
U
6.73
(.265)
10.5
(.413)
7.5
(.295)
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
85/86 – 5/8 ˝ Square Single-Turn Panel Control with Rotary Switch
Product Dimensions
Primary Potentiometer Module
Model 85/86
14.53
(.572)
9.58 ± .38
(.377 ± .015)
Secondary Potentiometer Module
Model 85/86
10.16
(.400)
15.88
(.625)
15.88
(.625)
Shaft Flat Orientation*
120 ° ± 5 ° CCW END
30 ° ± 5 °
12.7
(.50)
5.97
(.235)
8.56
(.337)
1.60
(.063)
FLATTED SHAFT
5.08
(.200)
SLOTTED SHAFT
*EXCLUDES MODELS 83 AND 84
5.08
(.200) 8.56
(.337)
5.08
(.200)
Switch Module
Model 85/86
REAR
PLATE
COVER
2.77
(.109)
1.35
(.053)
2.29
(.090)
TYP.
6 PLACES
Assembly Sequence
Model 85/86
Secondary Potentiometer Module
Switch Module Terminal Orientation
3
1
4
2
3
1
18.42
(.725)
2.41
1.14
(.095)L X (.045)W
SLOT TYP. 6 PLACES
4
2
HORIZONTAL ORIENTATION
(Types R56, R57, R58 & R59)
VERTICAL ORIENTATION
(Types R50, R51, R52 & R53)
2.92
(.115)
9.53
(.375)
REAR
COVER
PLATE
SWITCH
MODULE
PRIMARY
POTENTIOMETER
MODULE
4
2
3
1
3
1
4
2
DPST (NO/NC)
(TYPES 50, 51, 56, 57)
DPST (NO/NO)
(TYPES 52, 53, 58, 59)
Switch contacts shown in detent position.
Locating Lug Options - All Model 80 Series
A
.46
(.018)
7.75
(.305)
E
13.49
(.531)
J
9.53
(.375)
.79 ± .41
(.031 ± .016)
E = 2.36 ± .76
(.093 ± .03)
H & J = 1.98 ± .41
(.078 ± .016)
2.31
(.091)
3.18
(.125)
.46
(.018)
2.36
(.093)
7.75
(.305)
A
C
7.75
(.305)
.46
(.018)
.79 ± .41
(.031 ± .016)
MOUNTING
SURFACE
TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ±
RECOMMENDED
PANEL LAYOUT
7.75
#40 DRILL
(.305)
2.49
DIA.
(.098)
9.91
DIA.
(.390)
.127
(.005)
.XX ± .38
(.015)
ANGLE ± 5 %
2.31
(.091)
DIMENSIONS:
MM
(INCHES)
NOTE: "D" OPTION - NO A/R LUG. OTHER LOCATING LUG OPTIONS AVAILABLE. CONSULT FACTORY FOR DETAILS.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
As the title says, the driver is not occupied, but when uninstalling, I cannot roll back and cannot delete the installed driver. Does anyone have a solution? Thank you....
[i=s]This post was last edited by dontium on 2015-1-23 13:21[/i]Keywords: medical ultrasound equipment, portable ultrasound equipment, ultrasound system block diagram, beamforming, analog front end, A...
Hi guys, I am a newbie, I use P&E programmer to burn program to MC9S08AC60, but after connecting, the command window shows "Startup command file does not exit" message, but it shows "target ready", I ...
[hide]The Y axis is determined by the phosphor you choose. After determining the wavelength of the chip, choose the phosphor you think is suitable (don't know how to choose? Try it and you will know, ...
From being a global leader to losing the market, Korean battery manufacturers have always wanted to regain the lost market and dignity, but facing Chinese battery manufacturers represented by CAT...[Details]
Some time ago, I attended the 4th Energy Chemistry Forum of the Chinese Chemical Society and learned about high-energy-density and high-safety batteries. I would like to summarize and share this wi...[Details]
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
Electric motors and internal combustion engines of the same power have similar torque levels. High power requires high torque, and torque determines a vehicle's acceleration speed, commonly known a...[Details]
According to foreign media reports, researchers at the University of Surrey have developed an artificial intelligence system that can accurately locate the location of equipment in densely populate...[Details]
On August 22, the National Energy Administration released the latest data, showing that by the end of July 2025, China's total number of electric vehicle charging infrastructure will reach 16.696 m...[Details]
1. Multi-channel DAC technology bottleneck
Currently,
the development of multi-channel DAC technology focuses on two core challenges.
First, industrial applications urgently ...[Details]
The MCX E series is the most reliability- and safety-focused series in NXP's extensive MCX product portfolio.
With the launch of this series, NXP has further enriched its 5V-compatible MCU pr...[Details]
Teletrac Navman has launched the Multi IQ dashcam, a cloud-based solution designed for large commercial vehicle operators. It connects up to five cameras to cover the vehicle's interior, sides, and...[Details]
The difference between a series inverter and a parallel inverter is that they use different oscillation circuits. A series inverter connects L, R, and C in series, while a parallel inverter connect...[Details]
In the period after the switching power supply achieved the "20 kHz" revolution in the 1970s, although improvements and enhancements were made in circuit technology, the development level of the se...[Details]
With the advancement of science and technology and the promotion of green, energy-saving, and circular development, the demand for precise control and accurate measurement is increasing. In the pow...[Details]
HTTP is the abbreviation of Hypertext Transfer Protocol. It is an application protocol based on TCP/IP communication protocol used to transmit HTML and image files. It is an application-level objec...[Details]
Shanghai, China, August 21, 2025 –
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) today announced the launch of the TLX9161T
, an automotive photorelay in a compact SO12L-T pa...[Details]
As a pioneer in the new smart home concept, robot vacuums have captured a significant market share. Robot vacuums, also known as automatic sweepers, smart vacuums, or robot vacuums, are smart home ...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
