3851/3852/3856 – 3/4 ˝ Diameter Panel Control

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.

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

C & E 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