3540 Datasheet, PDF (1/2 Pages) Vishay Siliconix – Ceramic Stand-off Insulators for RF-Equipment

*RoHS ^COMPLIANT
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 specifications
available
■ RoHS compliant*
3540/3541 - Precision Potentiometer
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 infinite
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 Coefficient 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...............................................................0.49 N-cm (0.7 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 flux; 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.
1_{At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.}
2_{Consult manufacturer for complete specification details.}
Product Dimensions
3540S-1/3541H-1
18.3
(.72)
14.35 ± .38
(.565±.015)
1
3
2
1.52
(.06)
7.92 ± .38
(.312 ± .015)
19.05 ± .38
(.750 ± .015)
5.72 ± .38
(.225±.015)
(.41006.3+2.0+0.00/0-/..00052)DIA.
3/8 " 32-UNEF-2ATHD
.25
(.010)
X
45
°
CHAMFER
ADJUSTMENT
SLOT(.0.8312) WIDE
X ^.81±.25 DEEP
(.032±.010)
6.342 + .000/ - .023
(.2497+.0000/-.0009)
DIA.
20.62 ± .79
(.812 ± .031)
15.88
(.625)
R
MAX.
OPTIONAL ANTIROTATION LUG
(-91) 1.42 X .50 ON 7.4 RADIUS.
LENGTH 1.27 FROM MOUNTING SURFACE.
(SUGGESTED PANEL HOLE 1.6 DIA.)
30 °
±5°
6.35
(.25)
12.45
(.49)
22.23 ± .38
(.875 ± .015)
MTG. FACE
15.88
(.625) ^{DIA. MIN.}
TOLERANCES: EXCEPT WHERE NOTED
DECIMALS:
.XX
±
.25
(.010),
.XXX
±
.13
(.005)
FRACTIONS: ±1/64
DIMENSIONS:
MM
(IN.)
2 ^WIPER
CCW ₁
CLOCKWISE
3 CW
Recommended Part Numbers
Part Number
3540S-1-201L
3540S-1-501L
3540S-1-102L
3540S-1-202L
3540S-1-502L
3540S-1-103L
3540S-1-203L
3540S-1-503L
3540S-1-104L
Resistance (Ω)
200
500
1,000
2,000
5,000
10,000
20,000
50,000
100,000
Resolution
.042
.031
.027
.021
.021
.019
.014
.011
.008
Part Number
3541H-1-102L
Resistance (Ω)
1,000
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
3541H-1-202L
3541H-1-502L
3541H-1-103L
2,000
5,000
10,000
ROHS IDENTIFIER:
L = COMPLIANT
3541H-1-203L
20,000
3541H-1-503L
50,000
3541H-1-104L
100,000
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.