Data Sheet

www.acptechnologies.com Specifications on this catalog are for reference only, as they are subject to change without notice.
72
Potentiometers
with detents
ACP’s patented detent (DT) feature is especially suitable for control applications where the end user will turn a knob
inserted in the potentiometer. Detents can be used to add a click feeling to the turning of the potentiometer or to control the position in
which the wiper is placed, assuring a particular output value with a narrow tolerance.
Detents can be light or strong, or even a combination of different feelings. They can be evenly distributed along the angle (standard) or
tailored to match customers’ request. They can also be combined with special tapers: constant value areas, open circuit zone, different
slopes, etc. One common example is a potentiometer with detents and matching non-overlapping voltage values in specific angular
positions, used to feed in a voltage value to a microprocessor:
Example of 5DT with control of value in each DT.
Other examples of potentiometers with detents:
10DT
20DT
Our patented design with two wipers has improved the performance of these potentiometers, giving them more stable electrical parameters,
improved reliability and Contact Resistance Variation (CRV) as well as narrower tolerances for detent positioning.
For potentiometers with detents, mechanical life is also 1.000 cycles, if no additional cycles are mentioned. Please, indicate the number
of cycles needed with LV (number of cycles), for example: LV07, for 7.000 cycles.
When needing a special number of detents or matching taper, a drawing is kindly requested.
20
1 (Initial, final or central), 2 DT (initial and
final), 3, 4, 5, 6, 7, 8,10, 20.
Maximum number of detents for feeling only
Number of standard detents (evenly distributed) already available.
Maximum number of detents when the voltage value in each detent is controlled and non-overlapping.
10
Potentiometers
with cut track
The cut track is an area with very high resistive value, resulting in an open circuit. It is widely used in lighting applications.
Mechanical life with cut track needs to be confirmed.
PCI = Cut at initial position, when the potentiometer is turned fully counter clockwise.
PCF = Cut at final position, when the potentiometer is turned fully clockwise.
Other positions are available on request.
PCI PCF
B
C
A
A B
C
C
B
A
A
B
C
U/U
N
100%
75%
50%
25%
A
0%
C
DT5
DT4DT3
DT2DT1
MIDDLE
POSITION
= = = =
240º
B
A
C
U
N
U
DT1
DT2
DT3
DT4
DT5
A
B
C
=
=
=
=
1
2
0
°
1
2
0°
240°
A
B
C
DT1
DT2
DT3
DT9
DT10
=
=
=
=
=
1
2
0
°
1
2
0
°
240°
DT1
DT2
DT3
DT20
DT19
A
B
C
=
=
=
=
=
1
2
0
°
1
2
0
°
240°