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.
[Attention] 25 most malicious virus websites, do not click to browse! Nowadays, there are too many malicious websites. If you are not careful, you will be infected. The editor has tried his best to co...
Hello everyone! I am using Intel's BSP to develop the CE kernel and I get the following errors: 1:BUILD: [01:0000000178:ERRORE] D:\WINCE500\PLATFORM\855gme\Src\Kernel\Libs\Kitl\kitldrv.c(33) : error C...
Following the previous post, after debugging, I thought about printing through the serial port, and found some problems. The program is to change the LED flashing frequency by pressing keys, and there...
On August 24th, Jin Yuzhi, CEO of Huawei's Intelligent Automotive Solutions BU, announced the first automotive application of Huawei Qiankun's unique Limera technology. This technology eliminates t...[Details]
Is electromagnetic radiation from electric vehicles harmful to the human body? Recently, the issue of electromagnetic radiation from electric vehicles has garnered widespread attention. However, pu...[Details]
In recent years, with the application of the IEC61850 standard and the development and deployment of optoelectronic transformers, the concept of digital substations has been put into practical use ...[Details]
With the rapid adoption of smart electric vehicles, automotive chips are evolving from auxiliary control units to the foundation of the entire vehicle's intelligence. Their applications extend from...[Details]
Keysight Technologies is combining its electromagnetic simulator with Synopsys' AI-driven RF design migration flow to create an integrated design flow for migrating from TSMC's N6RF+ process techno...[Details]
Electric vehicles are powered by electricity, and charging is a device that supplements the vehicle's energy source. It is common to need to recharge the vehicle when driving. But can you charge th...[Details]
Through AI connection technology supported by Qualcomm X85 5G modem and RF and Qualcomm FastConnect 7900 mobile connection system, seamless switching can be achieved between cellular net...[Details]
Plessey Semiconductors has been acquired by Haylo Labs, which was established in March last year with a $100 million, five-year loan from Chinese technology company Goertek.
Haylo Labs w...[Details]
On August 22, the Wall Street Journal reported on the 21st local time that the new US government does not plan to acquire equity in semiconductor wafer foundry giant TSMC and Micron, one of the thr...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
Introduction: In digital circuit calculations, there is no concept of decimal points. You know where the decimal is, but the circuit does not know where the decimal point is. Therefore, you need to...[Details]
As the power density of modern electronic systems continues to increase, effective thermal management has become critical to ensuring system performance, reliability, and longevity—especially in hi...[Details]
With the development of vehicle technology, there are more types of cars. Cars are divided into hybrid, pure electric vehicles, and fuel vehicles. For hybrid cars, they are divided into plug-in hyb...[Details]
Today, the voltage of electronic products continues to rise to 400V, 600V and even 1000V, so there are few electronic load models that can handle such high voltages. Many people consider connecting...[Details]
With rapid economic development, the types of pollution sources are increasing, especially in chemical and industrial zones and their surroundings. The patterns of pollution and the types of ecolog...[Details]
Test/Measurement
京公网安备 11010802033920号
EEWORLD
