3856A123502BL [BOURNS]

Diameter Panel Control; 直径控制面板


型号：	3856A123502BL
厂家：	BOURNS ELECTRONIC SOLUTIONS
描述：	Diameter Panel Control 直径控制面板
文件：	总3页 (文件大小：312K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Non-RoHS compliant versions are

currently available, although not

recommended for new designs.

Features

■ Single-turn (3851 and 3852)

■ Linear and audio tapers

■ 3-3/4-turn (3856)

■ Wide resistance range

■ Minimal depth package

■ Good resolution

3851/3852/3856 - 3/4 ” Diameter Panel Control

Initial Electrical Characteristics¹

3851

3852/3856

Cermet Element

Conductive Plastic Element

Standard Resistance Range

Linear Tapers (A, B, E, and H) ............................................................1 K to 1 megohm.........................................100 ohms to 1 megohm

Audio Tapers (C, D, F, and G) .............................................................1 K to 1 megohm.........................................1 K ohms to 1 megohm

Total Resistance Tolerance.....................................................................±10 ꢀ or ±ꢁ0 ꢀ..........................................±± ꢀ or ±10 ꢀ

Independent Linearity.............................................................................±10 ꢀ..........................................................(A & H tapers) ±± ꢀ

Absolute Minimum Resistance...............................................................ꢁ ohms maximum........................................ ꢁ ohms maximum

Effective Electrical Angle ........................................................................ꢁ±0 ° ±± °.....................................................ꢁ±0 ° ±± °

Contact Resistance Variation .................................................................±1 ꢀ............................................................±ꢂ ꢀ of total resistance or ꢂ ohms

(whichever is greater)

Dielectric Withstanding Voltage (MIL-STD-ꢁ0ꢁ, Method ꢂ01)

Sea Level............................................................................................900 VAC minimum.......................................900 VAC minimum

70,000 Feet ........................................................................................ꢂ±0 VAC minimum.......................................ꢂ±0 VAC minimum

Insulation Resistance (±00 VDC) ............................................................1,000 megohms minimum...........................1,000 megohms minimum

Power Rating (Voltage Limited By Power Dissipation or ꢂ±0 VAC, Whichever Is Less)

+70 °C ...............................................................................................(Linear tapers) 1 watt...................................(Linear tapers) ꢁ watts

(Audio tapers) 0.± watt

(Audio tapers) 1 watt

+1ꢁ± °C ..............................................................................................0 watt

+1±0 °C ...................................................................................................................................................................0 watt

Theoretical Resolution............................................................................Essentially infinite........................................Essentially infinite

Environmental Characteristics¹

Operating Temperature Range ...............................................................-1 °C to +1ꢁ± °C..........................................-1 °C to +1ꢁ± °C

Storage Temperature Range...................................................................-6± °C to +1ꢁ± °C........................................-6± °C to +1±0 °C

Temperature Coefficient Over Storage Temperature Range...................±1,000 ppmꢃ°C............................................±1±0 ppmꢃ°C

Vibration..................................................................................................ꢁ0 G.............................................................ꢁ0 G

Total Resistance Shift.........................................................................±ꢁ ꢀ maximum...........................................±ꢁ ꢀ maximum

Voltage Ratio Shift..............................................................................±± ꢀ maximum...........................................±6 ꢀ maximum

Shock......................................................................................................100 G...........................................................100 G

Total Resistance Shift.........................................................................±ꢁ ꢀ maximum...........................................±ꢁ ꢀ maximum

Voltage Ratio Shift..............................................................................±± ꢀ maximum...........................................±6 ꢀ maximum

Load Life.................................................................................................1,000 hours .................................................1,000 hours

Total Resistance Shift.........................................................................±10 ꢀ maximum.........................................±ꢂ ꢀ maximum

Rotational Life (No Load)........................................................................100,000 cycles ............................................±0,000 cycles

Total Resistance Shift.........................................................................±1± ꢀ TRS maximum ................................±± ꢀ or ± ohms TRS whichever is greater

Contact Resistance Variation.............................................................±ꢂ ꢀ............................................................±ꢂ ꢀ

Moisture Resistance (MIL-STD-ꢁ0ꢁ, Method 10ꢂ, Condition B)

Total Resistance Shift.........................................................................±10 ꢀ maximum ........................................±ꢁ ꢀ maximum

IP Rating.................................................................................................IP 40 ............................................................IP 40

Mechanical Characteristics¹

Stop Strength ..............................................................................................................................................................................................±6.± N-cm (± lb.-in.)

Mechanical Angle ....................................................................................................................................................................ꢁ80 ° ±± ° ꢃ ꢂ8±6 ꢄ 1ꢂ±0 ° ±±0 °

Torque (Starting and Running) ..............................................................................................................A & B bushings 0.ꢂ± to 4.ꢁꢂ N-cm (0.0± to 6.0 oz.-in.)

C & E bushings 0.ꢁ1 to 4.ꢁꢂ N-cm (0.ꢂ to 6.0 oz.-in.)

ꢂ8±6 ꢄ 0.11 to ꢁ.1ꢁ N-cm (0.1± to ꢂ.0 oz.-in.)

Mounting (Torque on Bushing)......................................................................................................................................1.7-ꢁ.0 N-m (1±-18 lb.-in.) maximum

Weight (Single Section) ................................................................................................................................................................................ꢂ0 grams maximum

Terminals ........................................................................................................................................................................Printed circuit terminals or solder lugs

Soldering Condition ......................................................................Recommended hand soldering using Sn9±ꢃAg± no clean solder, 0.0ꢁ± ” wire diameter.

Maximum temperature ꢂ99 °C (7±0 °F) for ꢂ seconds. No wash process to be used with no clean flux.

Part can be wave soldered at ꢁ60 °C (±00 °F) for ± seconds, no wash process with no clean flux.

Marking....................................................................................................Manufacturer’s trademark, wiring diagram, resistance, date code, and part number

Ganging (Multiple Section Potentiometers) ......................................................................................................................................................1 cup maximum

Hardware ............................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.

¹AT 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.

3851/3852/3856 - 3/4 ” Diameter Panel Control

Product Dimensions

3851B/3852B

3851A/3852A

Terminal Configuration

15.88

(5/8)

12.7, 22.23

(1/2, 7/8)

STD.

12.7

STD.

9.53

SOLDER LUG TERMINAL

(.50)

(.38)

6.35

(.25)

6.35 ± .76

3/8-32 UNEF

2.79

(.110)

3 PLCS.

TYP.

6.35 ± .76

3/8-32 UNEF

.25

.38

(.015)

(.25 ± .03)

.25

(.010)

.38

(.015)

(.25 ± .03)

45 ° X

(.010)

CHAMFER

12.7

(.50)

EACH TERMINAL LUG

WILL ACCOMMODATE

.81

19.05

(.75)

DIA.

19.05

(.75)

DIA.

2 PLCS.

6.35+.03/-.05

(.250+.001/-.002)

6.35+.03/-.05

(.250+.001/-.002)

DIA.

THREE

DIAMETER

(.032)

14.02 ± .25

(.552 ± .010)

(.812 DIA. AWG

STRANDED) WIRES.

SHAFT SLOT

1.19

(.047)

WIDE X

12.19

(.48)

1.19

.047

12.19

(.480)

WIDE X

DIA.

1.60+.38/-.00

1.60+.38/.00

(.063+.015/-.000)

DEEP

(.063+.015/-.000)

DEEP

STANDARD

PRINTED CIRCUIT TERMINAL

6.35

1.02

5.49

16.00

(.63)

OPTIONAL FLAT

1.52

(.216)

LONG OR

28.58

(1-1/8)

FRONT BUSHING FOR SHAFTS UNDER

TYP.

(.06)

(.25)

(.040)

15.88 ± .38

(.625 ± .015)

6.35

(.25)

3851C/3852C

3851E/3852E

12.7

(1/2)

9.53, 22.23

(3/8, 7/8)

STD.

9.53

6.35

(.25)

(.38)

1/4-32 UNEF

.25

1/4-32 UNEF

.25

6.35 ± .76

(.25 ± .03)

.38

(.015)

(.25 ± .03)

.38

(.015)

45 ° X

(.010)

SUGGESTED BOARD LAYOUT

(.010)

CHAMFER

6.35

(.25)

6.35

(.25)

2.36

19.05

(.75)

DIA.

(.094)

19.05

(.75)

DIA.

1.40

(.055)

DIA.

3.18 ± .025

(.125 ± .001)

3.18 ± 0.25

(.125 ± .001)

DIA.

3851/3852/3856

12.19

(.480)

12.19

(.480)

DIA.

SHAFT SLOT

DIA.

A, B & H BUSHINGS

SHAFT SLOT

.79

(.031)

.76

WIDE X

DEEP

(.03)

9.53

(.375)

9.53

(.375)

.79

.76

(.031)

WIDE X

DEEP

(.03)

.25

(.010)

OPTIONAL FLAT

1.52

(.06)

LONG OR

15.88

(5/8)

FRONT BUSHING FOR SHAFTS UNDER

3.18

(.125)

6.73

(.265)

3.18

(.125)

10.31

(.406)

DIA.

Shaft End Detail

3850 Family

3856A

3856H

12.7

(.50)

12.7

(.50)

9.53

(.38)

9.53

(.38)

SHAFT SLOT

ALIGNMENT

AT CCW

FLAT

ALIGNMENT

AT CCW

.38

(.015)

6.35+.03/-.05

(.250+.001/-.002)

.38

(.015)

6.35+.03/-.05

(.250 ± .03)

DIA.

6.35 ± .76

(.25 ± .03)

6.35 ± .76

(.25 ± .03)

3/8-32 UNEF.

.79

(.031)

3/8-32 UNEF

50 ° ± 10 °

1.19

(.047)

19.05

(.75)

DIA.

19.05

(.75)

DIA.

12.19

(.480)

12.19

(.480)

DIA.

3.18 ± .03

DIA.

.25

(.010)

CHAMFER

45 ° X

(.125 ± .003)

TOLERANCES EXCEPT AS NOTED:

DIA.

.79 ± .25

(.031 ± .010)

22.23

STD.

(7/8)

.127

(.005),

.38

(.015)

DECIMALS: .XXX ±

.XX ±

1.60+3.81/-.000

.25

(.010)

CHAMFER

45 ° X

(.063+.015/-.000)

FRACTIONS: ± 1/64

ANGLE: ± 3 %

DIA.

22.23

STD.

(7/8)

(INCHES)

DIMENSIONS ARE:

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

3851/3852/3856 - 3/4 ” Diameter Panel Control

How To Order

3852

103

AVAILABLE ONLY IN

MODELS BUSHINGS

12 3/8 ” (9.53 mm) L X 1/8 ” (3.18 mm) D ꢂ8±1, ꢂ8±ꢁ

16 1ꢃꢁ ” (1ꢁ.7 mm) L x 1ꢃ4 ” (6.ꢂ± mm) D ꢂ8±1, ꢂ8±ꢁ

RESISTANCE

SHAFT TYPE

(FMS) & DIAMETER

CODE/VALUE

(IN OHMS)

RoHS IDENTIFIER

Compliant

Model 3851

Blank Non-Compliant

(102)

(ꢁ±ꢁ)

(502)

(103)

(ꢁ±ꢂ)

(503)

(104)

(ꢁ±4)

(±04)

(10±)

1 K

ꢁ.± K

5 K

10 K

ꢁ± K

50 K

100 K

ꢁ±0 K

±00 K

1 M

16 1/2 ” (12.7 mm) L x 1/8 ” (3.18 mm) D ꢂ8±1, ꢂ8±ꢁ

20 5/8 ” (15.88 mm) L X 1/4 ” (6.35 mm) D ꢂ8±1, ꢂ8±ꢁ

3851, 3852

C, E

A, B

28 7/8 ” (22.20 mm) L X 1/4 ” (6.35 mm) D

ꢂ8±6

ꢂ8±1, ꢂ8±ꢁ

ꢂ8±6

C, E

ꢁ8 7ꢃ8 ” (ꢁꢁ.ꢁ0 mm) L X 1ꢃ8 ” (ꢂ.18 mm) D

Consult factory for lengths not shown.

Models 3852/3856

(101)

(ꢁ±1)

(±01)

(102)

(252)

(502)

(103)

(ꢁ±ꢂ)

(503)

(104)

(ꢁ±4)

(±04)

(10±)

100

ꢁ±0

±00

1 K

2.5 K

5 K

10 K

ꢁ± K

50 K

100 K

ꢁ±0 K

±00 K

1 M

BUSHING

Plain 3/8 ” (9.53 mm) D x 3/8 ” (9.53 mm) L

APPLICABLE MODELS

ꢂ8±1, ꢂ8±ꢁ, ꢂ8±6

Locking ꢂꢃ8 ” (9.±ꢂ mm) D x 1ꢃꢁ ” (1ꢁ.7 mm) L ꢂ8±1, ꢂ8±ꢁ

Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L ꢂ8±1, ꢂ8±ꢁ

Locking 1ꢃ4 ” (6.ꢂ± mm) D x 1ꢃꢁ ” (1ꢁ.7 mm) L ꢂ8±1, ꢂ8±ꢁ

Plain ꢂꢃ8 ” (9.±ꢂ mm) D x ꢂꢃ8 ” (9.±ꢂ mm) L

ꢂ8±6 (ꢂ.18 mm D Shaft)

MODEL

ELEMENT

TERMINAL STYLE AND

SHAFT TYPE

APPLICABLE MODELS

TAPER/TOLERANCE

Linear ±10 %

ꢂ8±1 ꢂꢃ4 ” (19.0± mm) D Single-Turn C.P.

3852 3/4 ” (19.05 mm) D Single-Turn Cermet

ꢂ8±6 ꢂꢃ4 ” (19.0± mm) D ꢂ-ꢂꢃ4-Turn Cermet

ꢂ8±ꢁ, ꢂ8±6

ꢂ8±1

ꢂ8±ꢁ, ꢂ8±6

ꢂ8±1

ꢂ8±ꢁ, ꢂ8±6

ꢂ8±1

ꢂ

Solder Lugs, Plain End

Solder Lugs, Slotted End

Solder Lugs, Flatted Shaft

PC Pins, Plain End

PC Pins, Slotted End

PC Pins, Flatted Shaft

Linear ±ꢁ0 ꢀ

Audio CW ±10 ꢀ

Audio CW ±ꢁ0 ꢀ

Linear ±10 ꢀ

Audio CCW ±10 ꢀ

Audio CCW ±ꢁ0 ꢀ

Linear ±± ꢀ

Boldface features are Bourns standard

options. All others are available with higher

minimum order quantities.

ꢂ8±ꢁ, ꢂ8±6

REV. 10/08

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

3856A123502BL [BOURNS]

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