2 W Conductive Plastic
Potentiometers
380 Series, RV4 Series, 485 Series,
53C Series, 385 Series
Datasheet
Conductive Plastic Potentiometers
Potentiometers convert rotary motion into a change of resistance, supplying a smooth transition of voltage or current levels.
The resulting voltage output may be used to control position transducers in a wide variety of potential applications.
The five series listed below are all 2 W plastic potentiometers and are available in resistances from 100 Ohm to 5 MOhm,
inclusive. Available tapers include linear, log, and antilog to meet a wide range of application requirements. These single
turn devices have a 6,35 mm [0.250 in] diameter shaft that is available in a range of lengths. Most shafts are nickel-plated
brass. Most configurations have a standard 3/8-32 NEF-2A bushing; a high torque version is also available. Termination
types are solder lug (with or without a center tap), PC pin or fast-on, all are solder-dipped. Custom designs are available
upon request.
•
•
•
•
•
380 Series:
2 W conductive plastic potentiometer offering low contact resistance variation and a long rotational life
RV4 Series:
Military version of the 380 Series; meets MIL-R-94 requirements (non RoHS compliant)
485 Series:
Custom version of the 380 Series
53C Series:
Cost-effective version of the 380 Series
385 Series:
Custom version of the 53C Series
,
Table of Contents
General Specifications . . . . . . . . . . . . . . . . . 3-6
General Configuration Guide . . . . . . . . . . . . . . 7
380 Series:
Specific Configurations . . . . . . . . . . . . . . . . . 8
Order Guides . . . . . . . . . . . . . . . . . . . . . . 9-15
RV4 Series:
Specific Configurations . . . . . . . . . . . . . . . . 16
Order Guides . . . . . . . . . . . . . . . . . . . . . .17-18
485 Series:
Specific Configurations . . . . . . . . . . . . . 19-21
Order Guides . . . . . . . . . . . . . . . . . . . . . 22-31
53C Series:
Specific Configurations . . . . . . . . . . . . . . . . 32
Order Guides . . . . . . . . . . . . . . . . . . . . . 33-37
385 Series:
Specific Configurations . . . . . . . . . . . . . 38-39
Order Guides . . . . . . . . . . . . . . . . . . . . . 40-46
Additional Information . . . . . . . . . . . . back page
Key Features and Benefits
•
•
•
Cost-effective:
Supplies good performance at a reasonable
price
Wide range of resistance values (100 Ohm to 5 MOhm,
inclusive):
Promotes flexibility in the applications
Wide variety of tapers:
Creates flexibility in output signal
profile, allowing use in a wide variety of applications
Potential
Applications
INDUSTRIAL/COMMERCIAL
•
•
•
•
Audio and visual equipment (e.g., musical instruments,
sound mixers, projectors, amplifiers)
Foot pedal controls (e.g., guitars, sewing machines,
woodworking equipment)
Machine controls (e.g., joysticks)
Welding equipment (e.g., MIG wire feed, foot pedal controls,
adjustment knobs)
TRANSPORTATION
•
•
Foot pedal controls (e.g., golf carts)
Gear shifter, joystick, and throttle position (e.g., construction/
agricultural vehicles)
COST-EFFECTIVE • MIL-R-94 • CUSTOMIZATION AVAILABLE
2
Sensing and Productivity Solutions
General Specifications
Table 1. Electrical Specifications
Characteristic
Maximum working voltage:
linear tapers
log, reverse log tapers
Dielectric strength
Power rating
Taper
CRV
1
:
linear tapers
log, reverse log tapers
Resistance
Resistance tolerance
End resistance
Linearity
380 Series
RV4 Series
485 Series
500 Vdc
350 Vdc
1000 Vac for 60 s at 1 mPa [atm], 450 Vac for 60 s at 11,5 kPa [3.4 inHg]
2 W at 70 °C [158 °F], derated to 120 °C [248 °F]
See Order Guides under each series
3% max. total resistance
3% max. total resistance
100 Ohm to 5 MOhm, inclusive. See individual Order Guides under each series.
See Order Guides under each series.
See Order Guides under each series.
±
5%
See Order Guides under each series.
53C Series
385 Series
Electrical rotation
1
Contact resistance variation is the maximum momentary change in contact resistance that occurs when the wiper is moved from one
location to another location. The larger this change, the more difficult it is to set the trimmer potentiometer and the more unstable the long
term setting will be.
Table 2. Mechanical Specifications
Characteristic
Shaft:
material
diameter
Retaining ring
material
Bushing:
material
thread
Termination base
material
Terminal material
Housing material
Base material
Mounting
hardware material:
jam nut
mounting nut
lock washer
o-ring
Operating torque
Stop torque
Weight (approx.)
1
380 Series
RV4 Series
485 Series
nickel-plated brass
1
6,35 mm [0.250 in]
53C Series
385 Series
nickel-plated brass
nickel-plated
beryllium copper
nickel-plated brass
3/8-32 NEF-2A
thermoset
nickel-plated brass
brass; solder
(SAC305) dip finish
brass; solder
(SAC305) dip or
tin-lead finish
brass; solder
(SAC305) dip finish
stainless steel
thermoset plastic
brass; solder (SAC305) dip or
tin-lead finish
nickel-plated brass
nickel-plated brass
nickel-plated brass phospher bronze
1
silicone rubber
See Order Guides under each series.
See Order Guides under each series.
32.7 g [0.072 lb]
Unless otherwise specified on the Order Guides under each series.
Sensing and Productivity Solutions
3
General Specifications
Table 3. Environmental Specifcations
Characteristic
380 Series
RV4 Series
485 Series
53C Series
385 Series
Operating temperature
Rotational life
-55 °C to 120 °C [-67 °F to 248 °F]
tested to 25,000 cycles
Table 4. Maximum Percent Temporary Resistance from 25 °C [77 °F]
Nominal
Resistance
Temperature
-55 °C
[-67 °F]
±
5.0
-40 °C
[-40 °F]
±4
.0
0 °C
[32 °F]
±1.5
25 °C
[77 °F]
55 °C
[131 °F]
±
1.5
±
1.5
±
2.0
±
2.5
85 °C
[185 °F]
±
2.0
±
2.5
±
3.5
±
4.0
120 °C
[248 °F]
±
3.5
±
5.5
±
6.0
±
7.5
100 Ohm
10 kOhm
100 kOhm
1 MOhm
0
0
0
0
+7.0
+8.0
+10.0
+5.5
+6.0
+8.0
+2.0
+2.5
+3.0
Figure 1. Electrical Taper Diagrams (For reference only.)
Log (Z)
100
90
80
Total Resistance (%)
Reverse Log (RZ)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
Linear: 2.5% to 97.5% (S-1)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
Linear: 5% to 95% (S-2)
100
90
80
Total Resistance (%)
Linear: 7.5% to 92.5% (S-3)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
Linear: 10% to 90% (S-4)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
4
Sensing and Productivity Solutions
General Specifications
Figure 1. Electrical Taper Diagrams (continued)
Linear: 15% to 95% (S-5)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
Linear: 25% to 75% (S-6)
100
90
80
Total Resistance (%)
Linear: 35% to 65% (S-7)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
Linear: 37.5% to 82.5% (S-8)
100
90
80
Total Resistance (%)
Linear: 42.5% to 57.5% (S-9)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
Linear: 45% to 55% (S-10)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
Linear: 5% to 50%; 50% to 90% (S-11)
100
90
80
Linear: 10% to 40%; 57.5% to 82.5% (S-12) Linear: 10% to 45%; 55% to 90% (S-13)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
Total Resistance (%)
100
90
80
70
60
50
40
30
20
10
Total Resistance (%)
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
Linear: 35% to 45%; 55% to 65% (S-14)
100
90
80
Total Resistance (%)
Linear: 45% to 47.5%; 47.5% to 52.5%;
52.5% to 55% (S-15)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
Linear: 5% to 40%; 45% to 52.5%;
60% to 95% (S-16)
100
90
80
Total Resistance (%)
70
60
50
40
30
20
10
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
0
0
10 20 30 40 50 60 70 80 90 100
Angular Rotation, Clockwise Left to Right (%)
Sensing and Productivity Solutions
5
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