Datasheet

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.
3851/3852/3856 - 3/4 ” Diameter Panel Control
Product Dimensions
9.53
(.38)
3/8-32 UNEF
19.05
(.75)
DIA.
3/8-32 UNEF
1/4-32 UNEF
1/4-32 UNEF
3/8-32 UNEF
3/8-32 UNEF.
6.35
(.25)
2.79
(.110)
3 PLCS.
14.02 ± .25
(.552 ± .010)
SOLDER LUG TERMINAL
13
2
13
2
SUGGESTED BOARD LAYOUT
STANDARD
PRINTED CIRCUIT TERMINAL
A, B & H BUSHINGS
SHAFT SLOT
ALIGNMENT
AT CCW
FLAT
ALIGNMENT
AT CCW
50
° ± 10 °
6.35 ± .76
(.25 ± .03)
.38
(.015)
19.05
(.75)
DIA.
12.7, 22.23
(1/2, 7/8)
45 ° X
(.010)
CHAMFER
.25
DIA.
6.35+.03/-.05
(.250+.001/-.002)
SHAFT SLOT
1.19
WIDE X
.047
1.60+.38/.00
(.063+.015/-.000)
12.19
(.480)
DIA.
DEEP
OPTIONAL FLAT
LONG OR FRONT BUSHING FOR SHAFTS UNDER
5.49
(.216)
16.00
(.63)
1.52
(.06)
28.58
(1-1/8)
OPTIONAL FLAT
LONG OR
FRONT BUSHING FOR SHAFTS UNDER
.25
(.010)
1.52
(.06)
15.88
(5/8)
12.7
(.50)
6.35 ± .76
(.25 ± .03)
.38
(.015)
15.88
(5/8)
45 ° X
(.010)
CHAMFER
.25
DIA.
6.35+.03/-.05
(.250+.001/-.002)
DIA.
12.19
(.48)
DEEP
SHAFT SLOT
1.19
WIDE X
(.047)
1.60+.38/-.00
(.063+.015/-.000)
TYP.
12.7
(.50)
2 PLCS.
EACH TERMINAL LUG
WILL ACCOMMODATE
THREE
.72
DIAMETER
(.724 DIA. AWG
STRANDED) WIRES.
(.028)
6.35
(.25)
TYP.
15.88 ± .38
(.625 ± .015)
1.02
(.040)
TYP.
6.35
(.25)
6.35
(.25)
6.35
(.25)
1.40
(.055)
DIA.
9.53
(.375)
9.91
(.390)
DIA.
3.18
(.125)
DIA.
9.53
(.375)
6.73
(.265)
DIA.
3.18
(.125)
DIA.
TOLERANCES EXCEPT AS NOTED:
DECIMALS: .XXX ±
.127
.XX ±
.38
FRACTIONS: ± 1/64
ANGLE: ± 3 %
ANTI-ROTATION LUG
PROJECTS 1/16 INCH
ABOVE MOUNTING FACE.
(.005),
(.015)
6.35 ± .76
(.25 ± .03)
6.35
(.25)
9.53, 22.23
(3/8, 7/8)
.38
(.015)
45 ° X
(.010)
CHAMFER
.25
45 ° X
(.010)
CHAMFER
.25
3.18 ± 0.25
(.125 ± .001)
DIA.
SHAFT SLOT
.79
WIDE X
.76
DEEP
(.031)
(.03)
9.53
(.38)
12.7
(1/2)
.38
(.015)
19.05
(.75)
DIA.
DIA.
12.19
(.480)
3.18 ± .025
(.125 ± .001)
DIA.
SHAFT SLOT
.79
WIDE X
.76
DEEP
(.03)
(.031)
6.35 ± .76
(.25 ± .03)
.38
(.015)
9.53
(.38)
12.7
(.50)
DIA.
6.35+.03/-.05
(.250+.001/-.002)
1.19
(.047)
45 ° X
(.010)
CHAMFER
.25
12.19
(.480)
DIA.
1.60+3.81/-.000
(.063+.015/-.000)
DIA.
22.23
(7/8)
STD.
45 ° X
(.010)
CHAMFER
.25
22.23
(7/8)
STD.
12.19
(.480)
DIA.
19.05
(.75)
DIA.
19.05
(.75)
DIA.
6.35 ± .76
(.25 ± .03)
12.7
(.50)
9.53
(.38)
.38
(.015)
DIA.
6.35+.03/-.05
(.250 ± .03)
.79
(.031)
3.18 ± .03
(.125 ± .003)
DIA.
STD.
STD.
6.35 ± .76
(.25 ± .03)
19.05
(.75)
DIA.
DIA.
12.19
(.480)
STD.
STD.
.79 ± .25
(.031 ± .010)
2.36
(.094)
50 ° ± 10 °
2.67 ± .381
(.105 ± .015)
DIMENSIONS:
MM
(INCHES)
1
3
CCW
POTENTIOMETER
2