Features
■ Bushing mount
■ Optional ±0.05 linearity option
■ Excellent wiper stability
■ High stop strength
■ Sealable
■ RoHS compliant*
3400 - Precision Potentiometer
Electrical Characteristics1
Standard Resistance Range......................................................................... 100 to 500 K ohms
Total Resistance Tolerance................................................................................................. ±3 %
Independent Linearity .................................................................................................... ±0.15 %
Effective Electrical Angle ...................................................................................3600 ° +4 °, -0 °
Absolute Minimum Resistance .....................1 ohm or 0.15 % maximum (whichever is greater)
Noise ................................................................................................ 100 ohms ENR maximum
Dielectric Withstanding Voltage ........................................................MIL-STD-202, Method 301
Sea Level ................................................................................................1,000 VAC minimum
80,000 Feet................................................................................................300 VAC minimum
Power Rating (Voltage Limited By Power Dissipation, or ....................................(40 °C) 5 watts
1,000 VAC, Whichever Is Less) ...................................................................... (125 °C) 0 watt
Insulation Resistance (500 VDC) ...................................................... 1,000 megohms minimum
Resolution.................................................................................See recommended part number
Product Dimensions
6.35
(1/4)
WIPER
CCW
CW
3/8 "-32 2A THD UNEF
29.37
(1-5/32)
45 ϒ X .25
CHAMFER
1-13/16
(46.04)
DIA.
10.32 + .00/ - .05
(.4062 + .000/ -.002)
1.52
(.06)
7.94
5/16
Environmental Characteristics1
Operating Temperature Range ........................................................................ +1 °C to +125 °C
Storage Temperature Range
-65 °C to +125 °C
Temperature Coefficient Over Storage Temperature Range 2 ......... ±20 ppm/°C maximum/unit
Vibration ..............................................................................................................................10 G
Wiper Bounce ................................................................................. 0.1 millisecond maximum
Total Resistance Shift .....................................................................................±2 % maximum
Voltage Ratio Shift .......................................................................................±0.1 % maximum
Shock...................................................................................................................................50 G
Wiper Bounce ................................................................................. 0.1 millisecond maximum
Total Resistance Shift .....................................................................................±2 % maximum
Voltage Ratio Shift .......................................................................................±0.1 % maximum
Load Life..................................................................................................... 1,000 hours, 5 watts
Total Resistance Shift .....................................................................................±2 % maximum
Rotational Life (No Load).............................................................. 2,000,000 shaft revolutions 2
Total Resistance Shift .....................................................................................±5 % maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift .....................................................................................±2 % maximum
IP Rating............................................................................................................................. IP 40
39.4
FOR
(1.55)
ADDITIONAL CUP
44.45 ± .79
(1-3/4 ± 1/32)
ADD
20.64
(13/16)
1.02 WIDE
(.04) SLOT
1.02
X
DEEP
(.04)
2.36
DIA. TYP.
(.093)
4.76
(3/16)
TYP.
6.34 + .00/ - .01
(.2497 + .0000/ - .0003)
SHAFT DIA.
14.3
(9/16)
3.18
DIA. ANTI-ROTATION PIN
(.125)
1.02
PAST MOUNTING SURFACE
EXTENDS
(.04)
Mechanical Characteristics1
Stop Strength.......................................................................................53 N-cm (75 oz.-in.) min.
Mechanical Angle .................................................................................................3600° +4°, -0°
Torque (Starting & Running) ...........................................................0.35 N-cm (0.5 oz.-in.) max.
Mounting .................................................................................... 170-200 N-cm (15-18 lb.-in.)
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.................................................................................... 0.25 mm (0.010 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 114 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.
PILOT DIA.
RECOMMENDED PANEL LAYOUT
10.41 ± .08
DIA.
(.410 ± .003)
14.30 ± .05
R
(.563 ± .002)
3.35 +.08/-.03
DIA.
(.132 +.003/-.001)
2.46
RECOMMENDED PCB THICKNESS:
(.097)
MOUNTING TORQUE: 15-18 LB.-IN.
TOLERANCES: EXCEPT WHERE NOTED
.25
.13
DECIMALS: .XX ±
.XXX ±
(.010),
(.005)
FRACTIONS: ±1/64
MM
DIMENSIONS:
( IN.)
1 At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
2 Consult manufacturer for complete specification details for resistances below 500 ohms and above
100K ohms.
2
CCW
WIPER
3
1
CW
CLOCKWISE
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
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.
3400 - Precision Potentiometer
Recommended Part Numbers
Part Number
Resistance (Ω)
Resolution (%)
1,000
5,000
10,000
.020
.013
.010
3400S-1-102L
3400S-1-502L
3400S-1-103L
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
ROHS IDENTIFIER:
L = COMPLIANT
Panel Thickness Dimensions
(For Bushing Mount Only)
2.46 - 3.81
(.097 - .150)
PANEL
Anti-rotation pin hole is shown at six o'clock
position for reference only. The actual location is
determined by the customer's application. Refer
to the front view of the potentiometer to see the
location of the optional A/R pin.
HEX NUT
10.44 ± .07
DIA.
(.411 ± .003)
R
LOCKWASHER
POT
7.42
(.292)
ADDITIONAL HOLE FOR
ANTI-ROTATION PIN
1.60 +.08/-.03
DIA.
(.063 +.003/-.001)
Panel thickness and hole diameters are
recommended for best fit. However, customers
may adjust the dimensions to suit their specific
application.
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
REV. 10/19
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.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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