3852A-121-102AL 查看數據表（PDF） - Bourns, Inc
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3852A-121-102AL Datasheet PDF : 3 Pages
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3851/3852/3856 - 3/4 ” Diameter Panel Control
Product Dimensions
3851A/3852A
9.53
(.38)
6.35 ± .76
(.25 ± .03)
.38
(.015)
12.7, 22.23
(1/2, 7/8)
STD.
3/8-32 UNEF
.25
45 ° X (.010)
CHAMFER
19.05
(.75)
DIA.
(.265.03+5.+0.0013//--..00052)DIA.
SHAFT SLOT
12.19
(.480)
DIA.
1.19
.047
WIDE
X
(.016.36+0.+0.1358//-..00000)DEEP
5.49
(.216)
OPTIONAL
FLAT
16.00
(.63)
LONG OR
1.52
(.06)
FRONT
BUSHING
FOR
SHAFTS
UNDER
28.58
(1-1/8)
3851B/3852B
12.7
(.50)
6.35 ± .76
(.25 ± .03)
19.05
(.75)
DIA.
12.19
(.48)
DIA.
.38
(.015)
15.88
(5/8)
STD.
3/8-32 UNEF
.25
45 ° X (.010)
CHAMFER
(.265.03+5.+0.0013//--..00052)DIA.
SHAFT SLOT
1.19 WIDE X
(.047)
1.60+.38/-.00
(.063+.015/-.000)DEEP
Terminal Configuration
SOLDER LUG TERMINAL
6.35
(.25) TYP.
2.79
(.110)
3 PLCS.
12.7
(.50)
2 PLCS. 1
2
3
EACH TERMINAL LUG
WILL ACCOMMODATE
14.02 ± .25
(.552 ± .010)
THREE (..08312)DIAMETER
(.812 DIA. AWG
STRANDED) WIRES.
STANDARD
PRINTED CIRCUIT TERMINAL
6.35
(.25)
TYP.
1.02
(.040) TYP.
3851C/3852C
6.35
9.53, 22.23
(3/8, 7/8)
STD.
(.25)
6.35 ± .76
(.25 ± .03)
.38
(.015)
1/4-32 UNEF
.25
45 ° X (.010)
CHAMFER
2.36
19.05
(.094)
(.75)
DIA.
12.19
(.480)
DIA.
3.18
(.125
±
±
0.25
.001) DIA.
SHAFT SLOT
.79 WIDE X .76 DEEP
(.031)
(.03)
OPTIONAL
FLAT
.25
(.010)
LONG
OR
1.52
(.06)
FRONT
BUSHING
FOR
SHAFTS
UNDER
15.88
(5/8)
3851E/3852E
9.53
(.38)
6.35 ± .76
(.25 ± .03)
.38
(.015)
12.7
(1/2) STD.
1/4-32 UNEF
.25
45 ° X (.010)
CHAMFER
19.05
(.75)
DIA.
12.19
(.480)
DIA.
3.18
(.125
±
±
.025
.001)
DIA.
SHAFT SLOT
.79 WIDE X .76 DEEP
(.03)
(.031)
15.88 ± .38
(.625 ± .015)
6.35
1 2 3 (.25)
SUGGESTED BOARD LAYOUT
6.35
6.35
(.25)
(.25)
1.40
(.055) DIA.
3851/3852/3856
A, B & H BUSHINGS
9.53
(.375)
9.53
(.375)
10.31
(.406)
DIA.
3.18
(.125)
DIA.
6.73
(.265)
DIA.
3.18
(.125)DIA.
3856A
9.53
(.38)
6.35 ± .76
(.25 ± .03)
19.05
(.75)
DIA.
12.7
(.50)
.38
(.015)
(.265.03+5.+0.0013//--..00052) DIA.
3/8-32 UNEF
1.19
(.047)
12.19
(.480) DIA.
1.60+3.81/-.000
(.063+.015/-.000)
DIA.
22.23
(7/8)
STD.
.25
45 ° X (.010)
CHAMFER
3856H
9.53
(.38)
6.35 ± .76
(.25 ± .03)
19.05
(.75)
DIA.
12.7
(.50)
.38
(.015)
6.35+.03/-.05
(.250 ± .03)
DIA.
3/8-32 UNEF.
.79
(.031)
12.19
(.480)
DIA.
.79 ± .25
(.031 ± .010)
22.23
(7/8)
STD.
3.18 ± .03
(.125 ± .003)
DIA.
.25
45 ° X (.010)
CHAMFER
DIMENSIONS ARE:
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MM
(INCHES)
Shaft End Detail
3850 Family
SHAFT SLOT
ALIGNMENT
AT CCW
FLAT
ALIGNMENT
AT CCW
50 ° ± 10 °
50 ° ± 10 °
TOLERANCES EXCEPT AS NOTED:
DECIMALS:
.XXX
±
(..010257),.XX
±
.38
(.015)
FRACTIONS: ± 1/64
ANGLE: ± 3 %
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