Data Sheet
C
A
B
U
N
U
DT1
DT2
DT3 DT4 DT5
MIDDLE
POSITION
0%
25%
50%
75%
100%
A
C
U/U
N
260º
= =
=
=
% Resistance
100
75
50
25
0
0 25 50 10075
Antilog (C)
Linear (A)
Log (B)
% Rotation angle
θ
% Resistance or
Vo
Vi
Rotation angle
The standard taper is linear (A). Log (B) and Antilog (C) tapers are also available, as well as special tapers according
to customer’s specifications. For example, a special taper can be matched with a potentiometer with detents (click effect), to guarantee
a value in a specific position – see “detents” section.-
Tapers
REGULAR TAPERS SPECIAL TAPERS
A
B
C
A
B
C
B
C
A
A
B
C
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
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:
DT1
DT2
DT3
DT4
DT5
B
A
C
260°
=
=
=
=
1
3
0
°
13
0°
Specifications on this catalog are for reference only, as they are subject to change without notice.
41
www.acptechnologies.com
Example of 5DT with control of value in each DT.
CA14 CE14