Spindle Operated Potentiometers
Type 31 Series
Type 31 Series
Characteristics Electrical
Resistance Range (Law):
1K Ohm to 1M Ohm Linear
4K7 to 470K (Non Linear)
Resistance Values:
1, 2.2 and 4.7 per decade
Resistance Tolerance:
± 20% (± 10% by selection)
Rated Dissipation at 40°C:
0.25W (Linear), 0.125W (Non Linear)
Limiting Element Voltage:
350Vdc or ac RMS
Electrical Rotation:
267° NOM without switch, 240° NOM with switch
Terminal Resistance:
5 Ohms, Max.
Tyco will customize these neat 16mm
Noise (ENR):
2% Max. (Linear), 3% Max. (Non Linear)
diameter control potentiometers to suit
Insulation Resistance:
4 G Ohms Min.
your requirements. They comprise a
Voltage Proof:
500 Vac peak
printed carbon resistance element with
0.25 W current handling and are avaliable with various bush, termination and
spindle styles.
Characteristics Mechanical
As an additional feature, the range
Operating Torque:
15 mNm, Max.
includes a twist tab design with mount-
Mechanical Rotation:
270° Nominal
ing bracket applications for use where
End Stop Torque:
350 mNm, Max.
low price is an important consideration.
Key Features
I
Characteristics Environmental
Versatile Design can be
Customised to Suit Your
Requirements
Limits of Resistance Change:
15% (After 1000 hours endurance)
5%
I
SPST Switch Style
Temperature characteristics of
resistance ( 20°C to 70°C ):
I
Low Cost Twist Tab Model
Bump Severity:
390m/s2, 4000 Bumps
I
PC Mounting Bracket
Vibration Severity:
10 - 500 Hz, 0.75mm or 98m/s2
I
Insulated Shafts Up To 50mm
Climatic Category:
8 days @ 36°C 82% RH DR < 15%
Mechanical Endurance:
15000 Operations ( Min )
I
Non Linear Laws
I
Available with Choice of Bush
Styles
I
Eyelet or PC Terminations
DIY
Design
The 31 Series can be customised to suit your individual requirements with features such as detent action,
track centre tap etc.
Please call our technical sales team to discuss variations on these 16mm diameter devices.
Resistance
Laws
100
90
A - Linear
B - Log
C - Inverse Log
Percent Voltage Rated Output
80
70
C
60
A
50
B
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
% Effective Electrical Clockwise Rotation
Literature No. 1773116
Issued: 02-06
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
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