Model 3381
1 - 5/16” Diameter
Single Turn
Conductive Plastic
Precision Potentiometer / Position Sensor
ELECTRICAL
1
Resistance Range
Standard Resistance Tolerance
Minimum Practical Resistance Tolerance
Independent Linearity
Input Voltage
Power Rating
Dielectric Strength
Insulation Resistance
Output smoothness
Actual Electrical Travel
Electrical Continuity Travel
End Voltage
Tap Tolerance
Resolution
Temperature Coefficient of Resistance
3
2
1K to 300K Ohms
±10%
±5%
±0.5%
±0.25%
400 VDC maximum, not to exceed power rating
2.0 Watts at 70°C, derating to 0 at 105°C
1,000 V rms
1,000 Megohms minimum
0.1% maximum
348° nominal
350° minimum
maximum 0.5% of input voltage
maximum 0.5% of input voltage
essentially infinite
-400 ppm/°C typical
±10 ppm/°C typical
Minimum Practical Independent Linearity
Temperature Coefficient of Output Voltage
4
MECHANICAL
Total Mechanical Travel
Number of Gangs
Weight
Shaft Runout
Pilot Diameter Runout
Lateral Runout
Shaft Radial Play
Start/Run Torque
360° Continuous (350° ±2° with stop feature)
1 maximum
1.5 oz. nominal
0.0025” maximum T.I.R.
0.0025” maximum T.I.R.
0.003”maximum T.I.R.
0.004” maximum
1.0 oz.-in. maximum, ES option adds 0.5 oz.-in.
1
2
3
4
Specifications subject to change without notice.
Linearity is measured between 1% and 99% of input voltage.
Special TCR available to ±100 ppm/°C.
Measured with 10 VDC CW to CCW and slider at 50% of electrical travel
RoHS 2
Pb
compliant
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
October 31 2014
Website: www.bitechnologies.com
Model 3381 page 1 of 3
Model 3381
Temperature Cycling
Shock
Vibration
Moisture Resistance
ENVIRONMENTAL (MIL-PRF-39023)
Operating Temperature Range
-40°C to +125°C dynamic, -65°C to +125°C static
5 cycles, -65°C to +125°C, maximum 10% ΔR
6 ms sawtooth, 100 G’s, 0.1 ms maximum discontinuity
10 G’s, 10 to 500 Hz, maximum 2% ΔR, 0.1 ms maximum discontinuity
five 24 hour cycles, maximum 25% ΔR
1,000 hours at 125°C, maximum 0.5% ΔR
10 million shaft revolutions
10 million shaft revolutions, maximum 10% ΔR
IP50, IP66 available as option (feature code ES)
High Temperature Exposure
Rotational Life
Rotational Load Life
Ingress Protection Rating (IP Code)
ORDERING INFORMATION
3381
R
10K T5 L.5 xx
Model Series
Resistance Prefix
Resistance Value
Optional Feature Code
(see table)
Linearity
Optional Non-standard Tolerance
FEATURE CODES
Center Tap
Linearity Tape
Flatted Shaft
Slotted Shaft
Shaft Lock
Stop
Seal (IP66)
CT
LT
FS
SS
SL
ST
ES
When multiple Optional Feature codes are used the P/N shall
be in the same sequence as listed in this table (top to bottom).
CIRCUIT DIAGRAM
STANDARD RESISTANCE VALUES
1K
5K
10K
20K
50K
100K
(S)
(CCW)
(CW)
2K
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
October 31 2014
Website: www.bitechnologies.com
Model 3381 page 2 of 3
Model 3381
OUTLINE DRAWING
Mounting
Surface
.567±.031
14.4±0.79
.875±.031
22.2±0.79
.470
11.9
Max.
CCW
CW
.062±.016
1.58±0.41
.2497
6.342
+.0000
-.0003
+0.000
-0.008
Dia.
1.312±.016
33.33±0.41
Dia.
.562±.016
14.3±0.41
+.000
-.002
+0.00
10.3
-0.05
.406
.090±.016
2.29±0.14
Chamfer
.375±.016
9.53±0.14
3/8
- UNEF
Thread
.016
Max. x
45°
0.41
Locating Lug
.125±.005
Dia.
3.18±0.13
Dia.
Slider
CT
(when specified)
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
October 31 2014
Website: www.bitechnologies.com
Model 3381 page 3 of 3
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