3540S-91-101L - Bourns - Product.Network

Features

■ Bushing mount

■ Optional center tap and rear shaft extension

■ Optional AR lug feature

■ Gangable with common or concentric shafts

■ High torque available

■ Non-standard features and speciﬁ cations

available

■ RoHS compliant*

3540/3541 - Precision Potentiometer

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Speciﬁ cations are subject to change without notice.

Customers should verify actual device performance in their speciﬁ c applications.

Electrical Characteristics1 3540 Wirewound Element 3541 Hybritron® Element

Standard Resistance Range................100 to 100 K ohms .....................1 K to 100 K ohms

Total Resistance Tolerance .................. ±5 % ...........................................±10 %

Independent Linearity .......................... ±0.25 % ......................................±0.25 %

Effective Electrical Angle .....................3600 ° +10 °, -0 ° .......................3600 ° +10 °, -0 °

Absolute Minimum Resistance/ ...........1 ohm or 0.1 % maximum ..........0.2 % maximum

Minimum Voltage .............................(whichever is greater)

Noise/Output Smoothness ..................100 ohms ENR maximum ..........0.1 % maximum

Dielectric Withstanding Voltage (MIL-STD-202, Method 301)

Sea Level .........................................1,000 VAC minimum ..................1,000 VAC minimum

Power Rating (Voltage Limited By Power Dissipation or 447 VAC, Whichever Is Less)

+70 °C ..............................................2 watts ........................................2 watts

+125 °C ............................................0 watt..........................................0 watt

Insulation Resistance (500 VDC) ........1,000 megohms minimum ..........1,000 megohms minimum

Resolution............................................See recommended part nos. .....Essentially inﬁ nite

Environmental Characteristics1

Operating Temperature Range ............ -40 °C to +125 °C .......................-40 °C to +125 °C

Storage Temperature Range ...............-55 °C to +125 °C .......................-55 °C to +125 °C

Temperature Coefﬁ cient Over

Storage Temperature Range2 .......... ±50 ppm/°C maximum/unit .........±100 ppm/°C maximum/unit

Vibration ..............................................15 G ...........................................15 G

Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum

Shock...................................................50 G ...........................................50 G

Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum

Load Life ..............................................1,000 hours, 2 watts ...................1,000 hours, 2 watts

Total Resistance Shift ......................±2 % ...........................................±5 %

Rotational Life (No Load).....................1,000,000 shaft revolutions2 .....5,000,000 shaft revolutions2

Total Resistance Shift ......................±5 % maximum ..........................±5 % maximum

Moisture Resistance (MIL-STD-202, Method 103, Condition B)

Total Resistance Shift ......................±2 % maximum ..........................±5 % maximum

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

Mechanical Characteristics1

Stop Strength..........................................................................................53 N-cm (75 oz-in.) minimum

Mechanical Angle ......................................................................................................3600 ° +10 °, -0 °

Torque

Starting & Running @ +25 °C ...............................................................0.35 N-cm (0.5 oz.-in.) max.

Starting & Running @ -40 °C ................................................................1.76 N-cm (2.5 oz.-in.) max.

Mounting ..................................................................................... 170-200 N-cm (15-18 lb.-in.) max.

Shaft Runout.................................................................................................0.08 mm (0.003 in.) T.I.R.

Lateral Runout ..............................................................................................0.13 mm (0.005 in.) T.I.R.

Shaft End Play ..............................................................................................0.30 mm (0.012 in.) T.I.R.

Shaft Radial Play ..........................................................................................0.08 mm (0.003 in.) T.I.R.

Pilot Diameter Runout ..................................................................................0.08 mm (0.003 in.) T.I.R.

Backlash ....................................................................................................................... 1.0 ° maximum

Weight .................................................................................................................Approximately 21 gm

Terminals ......................................................................................................... Gold-plated solder lugs

Soldering Condition

Manual Soldering...........................................................96.5Sn/3.0Ag/0.5Cu solid wire or no-clean

rosin cored wire; 370 °C (700 °F) max. for 3 seconds

Wave Soldering .................... 96.5Sn/3.0Ag/0.5Cu solder with no-clean ﬂ ux; 260 °C (500 °F) max.

for 5 seconds

Wash processes ..................................................................................................Not recommended

Marking ................................................. Manufacturer’s name and part number, resistance value and

tolerance, linearity tolerance, wiring diagram, and date code

Ganging (Multiple Section Pots.) ............................................................................... 2 cups maximum

Hardware .................................................... One lockwasher (H-37-2) and one mounting nut (H-38-2)

is shipped with each potentiometer.

1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

2Consult manufacturer for complete speciﬁ cation details.

Product Dimensions

BOLDFACE LISTINGS ARE IN STOCK AND READILY

AVAILABLE THROUGH DISTRIBUTION.

FOR OTHER OPTIONS CONSULT FACTORY.

ROHS IDENTIFIER:

L = COMPLIANT

Recommended Part Numbers

Part Number Resistance (Ω) Resolution

3540S-1-201L 200 .042

3540S-1-501L 500 .031

3540S-1-102L 1,000 .027

3540S-1-202L 2,000 .021

3540S-1-502L 5,000 .021

3540S-1-103L 10,000 .019

3540S-1-203L 20,000 .014

3540S-1-503L 50,000 .011

3540S-1-104L 100,000 .008

*RoHS COMPLIANT

Part Number Resistance (Ω)

3541H-1-102L 1,000

3541H-1-202L 2,000

3541H-1-502L 5,000

3541H-1-103L 10,000

3541H-1-203L 20,000

3541H-1-503L 50,000

3541H-1-104L 100,000

3540S-1/3541H-1

5.72 ± .38

(.225±.015)

10.32 +.00/.05

(.406+.000/-.002)

3/8 " 32-UNEF-2ATHD

ADJUSTMENT

SLOT .81 WIDE

X .81±.25

DEEP

1.52

(.06)

7.92 ± .38

(.312 ± .015)

19.05 ± .38

(.750 ± .015)

30 °

± 5 ° 6.35

(.25)

22.23 ± .38

(.875 ± .015)

MTG. FACE

12.45

(.49)

OPTIONAL ANTIROTATION LUG

(-91) 1.42 X .50 ON 7.4 RADIUS.

LENGTH 1.27 FROM MOUNTING SURFACE.

(SUGGESTED PANEL HOLE 1.6 DIA.)

13CW

CLOCKWISE

CCW

2WIPER

18.3

(.72)

14.35 ± .38

(.565±.015)

DIA.

(.032)

(.032±.010)

6.342 + .000/ - .023

(.2497+.0000/-.0009)

DIA.

20.62 ± .79

(.812 ± .031)

15.88

(.625)

DIA. MIN.

15.88

(.625)

TOLERANCES: EXCEPT WHERE NOTED

.25 .13

DECIMALS: .XX ± (.010), .XXX ± (.005)

FRACTIONS: ±1/64

DIMENSIONS: (IN.)

.25

(.010) X 45 ° CHAMFER

R MAX.