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81A2A-B16-A18/A18L

Description
Potentiometer, Cermet, 2W, 50000ohm, 10% +/-Tol, -150,150ppm/Cel, 1 Turn(s), 5/8 INCH, SQUARE, 6 PINS, ROHS COMPLIANT
CategoryPassive components    The resistor   
File Size287KB,6 Pages
ManufacturerBourns
Websitehttp://www.bourns.com
Environmental Compliance  
Download Datasheet Parametric View All

81A2A-B16-A18/A18L Overview

Potentiometer, Cermet, 2W, 50000ohm, 10% +/-Tol, -150,150ppm/Cel, 1 Turn(s), 5/8 INCH, SQUARE, 6 PINS, ROHS COMPLIANT

81A2A-B16-A18/A18L Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerBourns
package instruction5/8 INCH, SQUARE, 6 PINS, ROHS COMPLIANT
Reach Compliance Codenot_compliant
ECCN codeEAR99
Actuator directionHORIZONTAL
Actuator typeSHAFT
structureSquare
gang number2
Lead length12.7 mm
Manufacturer's serial number81
Installation featuresTHROUGH HOLE MOUNT
Number of terminals6
number of turns1
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package height15.88 mm
Package length15.88 mm
Package shapeRECTANGULAR PACKAGE
Package formPCB Mount
Package width26.04 mm
Rated power dissipation(P)2 W
Rated temperature70 °C
resistance50000 Ω
resistance lawLINEAR
Resistor typePOTENTIOMETER
rotation angle240 deg
series81
surface mountNO
technologyCERMET
Temperature Coefficient-150,150 ppm/°C
Terminal shapeWIRE
Tolerance10%
*R
oH
VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
E
Features
Metal shaft and bushing
Consistent, smooth quality feel
Up to 4 sections available
Rotary switch option designed
for “on-off” function control
RoHS compliant versions available*
81/82 - 5/8 ” Square Single-Turn Panel Control
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
Potentiometer Specifications
Initial Electrical Characteristics
1
Conductive Plastic Element
Cermet Element
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 %
Independent Linearity .............................................................................±5 %............................................................±5 %
Absolute Minimum Resistance ...............................................................2 ohms maximum........................................2 ohms maximum
Effective Electrical Angle ........................................................................(Linear tapers) 240 ° ± 5 °............................(Linear tapers) 240 ° ± 6 °
(Audio tapers) 225 ° ± 5 °
(Audio tapers) 225 ° ± 6 °
Contact Resistance Variation .................................................................±1 %............................................................±1 % or 3 ohms (whichever is greater)
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level............................................................................................1,500 VAC minimum....................................1,500 VAC minimum
70,000 Feet ........................................................................................500 VAC minimum.......................................500 VAC minimum
Insulation Resistance (500 VDC) ............................................................1,000 megohms minimum...........................1,000 megohms minimum
Power Rating At 70 °C (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)
+70 °C Single Section Assembly .......................................................(Linear tapers) 0.5 watt................................(Linear tapers) 2 watts
(Audio tapers) 0.25 watt
(Audio tapers) 1 watt
+70 °C Multiple Section Assembly.....................................................(Linear tapers) 0.5 watt/section ...................(Linear tapers) 1 watt/section
(Audio tapers) 0.25 watt/section
(Audio tapers) 0.5 watt/section
+125 °C ..............................................................................................0 watt...........................................................0 watt
Theoretical Resolution ............................................................................Essentially infinite ........................................Essentially infinite
Environmental Characteristics
1
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 ±10 % TRS max. .(All tapers) ±5 % TRS maximum
(whichever is greater)
(Audio taper) ±20 % maximum
Contact Resistance Variation @ 50,000 cycles
(Audio taper) ................................................................................±3 %............................................................±3 %
(Linear taper) ...............................................................................±2 %............................................................±2 %
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift.........................................................................(B & E tapers) ±10 % maximum .................±5 % maximum (all tapers)
(D, G, S & T tapers) ±20 % maximum
Insulation Resistance (500 VDC) ........................................................100 megohms minimum..............................100 megohms minimum
IP Rating .................................................................................................IP 40 ............................................................IP 40
Mechanical Characteristics
1
Stop Strength
1/4 ” and 1/8 ” diameter shafts ............................................................................................................................................................45.19 N-cm (4 lb.-in.)
7/8 ” length shaft ....................................................................................................................................................................................22.6 N-cm (2 lb.-in.)
Mechanical Angle ........................................................................................................................................................................................................300 ° ±5 °
Torque
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, except where noted in the part number.
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
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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