81A1A-B24-D18 Bourns Inc., 81A1A-B24-D18 Datasheet - Page 5
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81A1A-B24-D18
Manufacturer Part Number
81A1A-B24-D18
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-D18
Resistance
50 KOhms
Tolerance
20 %
Power Rating
0.25 Watt (1/4 Watt)
Termination Style
Pin
Taper
Audio
Number Of Turns
1
Element Type
Conductive Plastic
Shaft Type
Slotted
Shaft Length
3/4 in
Shaft Diameter
1/4 in
Operating Temperature Range
- 40 C to + 125 C
Product
Panel Mount Potentiometers
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Locating Lug Options - All Model 80 Series
Switch Module
Model 85/86
Primary Potentiometer Module
Model 85/86
NOTE: "D" OPTION - NO A/R LUG. OTHER LOCATING LUG OPTIONS AVAILABLE. FOR DETAILS CONSULT FACTORY.
SLOT TYP. 6 PLACES
COVER
PLATE
REAR
Product Dimensions
(.095) L X (.045) W
2.41
(.200)
5.08
(.572)
14.53
85/86 - 5/8 ” Square Single-Turn Panel Control with Rotary Switch
(.053)
(.018)
1.35
.46
(.337)
8.56
(.091)
1.14
2.31
(.725)
18.42
(.109)
2.77
(.235)
5.97
A
(.50)
12.7
(.305)
7.75
(.377 ± .015)
9.58 ± .38
6 PLACES
(.375)
(.090)
9.53
TYP.
2.29
(.115)
2.92
(.125)
3.18
Assembly Sequence
Model 85/86
Secondary Potentiometer Module
Secondary Potentiometer Module
Model 85/86
(.337)
8.56
COVER
PLATE
REAR
E
(.531)
13.49
MODULE
SWITCH
(.200)
5.08
10.16
(.400)
(.063)
1.60
(.093)
2.36
POTENTIOMETER
15.88
(.625)
PRIMARY
MODULE
J
(.375)
9.53
(.200)
5.08
(.625)
15.88
(.125)
3.18
DPST (NO/NC)
(TYPES 50, 51, 56, 57)
Shaft Flat Orientation*
3
1
FLATTED SHAFT
Customers should verify actual device performance in their specifi c applications
H
11.10
(.437)
TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.005)
NOTE: Switch terminals shown in vertical position.
4
2
120 ° ± 5 ° CCW END
3
1
DPST (NC/NC)
(TYPES 54, 55, 60, 61)
Switch contacts shown in detent position.
3
4
(.625)
15.88
REF.
5
E = 2.36 ± .76
*EXCLUDES MODELS 83 AND 84
6
(.093 ± .03)
DIMENSIONS:
Specifi cations are subject to change without notice.
2
4
2
1
SLOTTED SHAFT
3
1
DPST (NO/NO)
(TYPES 52, 53, 58, 59)
(.031 ± .016)
.79 ± .41
H & J = 1.98 ± .41
ANGLE ± 5 %
30 ° ± 5 °
(.078 ± .016)
(INCHES)
.XX ±
4
2
MM
3
1
(.015)
DPDT (NC/NC)
(TYPES 70, 71, 72, 73)
.127
.38
4
5
6
2