鈻?/div>
Servo mount
Excellent resolution
Non-standard features and specifications
available
Small diameter
High rotational life
Models 3750 and 3751 are currently
available, although not recommended
for new designs.
*R
3750/3751 - Precision Potentiometer
Electrical Characteristics
1
3750 Wirewound Element 3751 Hybritron
陇
Element
3750/3751
28.40
卤
.38
(1.118
卤
.015)
1.57 + .25/ - .13
(.062 + .010/ - .005)
3.18 + .25/ - .13
(.125 + .010/鈥?.005)
1.57 + .25/ - .03
(.062 + .010/- .005)
9.53 + .00/ - .03
(.375 + .010/- .005)
12.70 + .30/- .20
(.500 + .010/- .007)
10.16
DIA. MAX.
(.400)
30.16
MAX.
(1-3/16)
Standard Resistance Range ..............100 to 100 K ohms ..................1 K to 100 K ohms
Total Resistance Tolerance ................卤5 % ........................................卤10 %
Independent Linearity ........................卤0.25 % ....................................卤0.25 %
Effective Electrical Angle ....................3600 掳 +10 掳, -0 掳 ....................3600 掳 +10 掳, -4 掳
Absolute Minimum Resistance/..........1 ohm or 0.1 % maximum........Minimum voltage
Minimum Voltage
(whichever is greater)
0.2 % maximum
Noise ..................................................500 ohms ENR maximum ........Output smoothness 0.15 %
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 315 VAC, Whichever Is Less)
+70 掳C ............................................1 watt........................................1 watt
+125 掳C ..........................................0 watt........................................0 watt
Insulation Resistance (500 VDC) ........1,000 megohms minimum ........1,000 megohms minimum
Resolution ............................................See recommended part nos. ....Essentially infinite
9.53
卤
.80
(3/8
卤
1/32)
Environmental Characteristics
1
Operating Temperature Range ..........+1 掳C to +125 掳C ......................+1 掳C to +105 掳C
Storage Temperature Range ..............-65 掳C to +125 掳C ....................-55 掳C to +105 掳C
Temperature Coefficient Over
Storage Temperature Range
2
........卤50 ppm/掳C maximum/unit ......卤100 ppm/掳C maximum/unit
Vibration..............................................20 G ..........................................20 G
Wiper Bounce ................................0.1 millisecond maximum ........0.1 millisecond maximum
Shock..................................................100 G ........................................100 G
Wiper Bounce ................................0.1 millisecond maximum ........0.1 millisecond maximum
Load Life ............................................1,000 hours, 1 watt ..................1,000 hours, 1 watt
Total Resistance Shift ....................卤2 % maximum ........................卤5 % maximum
Rotational Life (No Load)....................1,000,000 shaft revolutions
2
....10,000,000 shaft revolutions
2
Total Resistance Shift ....................卤5 % maximum ........................卤5 % maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift ....................卤2 % maximum ........................卤5 % maximum
IP Rating ............................................IP 40 ........................................IP 40
5.08 + .25/ - .12
(.20 + .010/- .005)
3.18
卤
.40
(1/8
卤
1/64)
2.375 + .000/- .008
(.0935 + .000/- .0003)
10.71
(27/64)
12.7
卤
.40
(1/2
卤
1/64)
Mechanical Characteristics
1
Stop Strength ...............................................................................................14 N-cm (20 oz-in.) minimum
Mechanical Angle ......................................................................................................3600 掳 +20 掳, -0 掳
Torque
Starting .................................................................................................0.35 N-cm (0.5 oz.-in.) max.
Running ................................................................................................0.21 N-cm (0.3 oz.-in.) max.
Shaft Runout..................................................................................................0.08 mm (0.003 in.) T.I.R.
Lateral Runout ...............................................................................................0.08 mm (0.003 in.) T.I.R.
Shaft End Play ...............................................................................................0.13 mm (0.005 in.) T.I.R.
Shaft Radial Play ...........................................................................................0.05 mm (0.002 in.) T.I.R.
Pilot Diameter Runout ...................................................................................0.05 mm (0.002 in.) T.I.R.
Backlash ........................................................................................................................1.0 掳 maximum
Weight ...................................................................................................................Approximately 8.5 G
Terminals ...........................................................................................................Gold-plated turret lugs
Soldering Condition....................Recommended hand soldering using Sn95/Ag5 no clean solder,
0.025 鈥?wire diameter. Maximum temperature 399 掳C (750 掳F) for 3 seconds.
No wash process to be used with no clean flux.
Marking .................................................Manufacturer鈥檚 name and part number, resistance value and
tolerance, linearity tolerance, wiring diagram, and date code
Ganging (Multiple Section Pots.) .................................................................................1 cup maximum
1
2
TOLERANCES: EXCEPT WHERE NOTED
.25
.13
DECIMALS: .XX
卤
(.010) .XXX
卤
(.005)
MM
DIMENSIONS:
(IN)
FRACTIONS:
卤1/64
2
CCW
WIPER
1
CLOCKWISE
3
CW
At room ambient: +25 掳C nominal and 50 % relative humidity nominal, except as noted.
Consult manufacturer for complete specification details.
Recommended Part Numbers
Part Number
3750S-1-102L
3750S-1-202L
3750S-1-502L
3750S-1-103L
REV. 06/06
*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.
Resistance (鈩?
1,000
2,000
5,000
10,000
Resolution
0.05
0.04
0.04
0.02
Part Number
3751H-1-102L
3751H-1-202L
3751H-1-502L
3751H-1-103L
Resistance (鈩?
1,000
2,000
5,000
10,000
BOLDFACE
LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
TERMINALS:
L = RoHS COMPLIANT
BLANK = STANDARD
1
