FEATURES
MECHANICAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS
HOW TO ORDER
NOTES:
STANDARD
T-18
Stop torque: > 40 Ncm. ( > 56 in-oz)
Torque: 0.5 to 1.5 Ncm.
(0.7 to 2.1 in-oz)
Electrical rotation angle: 220° ± 20°
Mechanical rotation angle: 255° ± 5°
T-18
Series
T-18
(See note 3)
A
Terminals
A = PCB
B = Solder Lugs
I
Switch
I = with
S = without
Carbon resistive element.
Dust proof enclosure.
B
Others tapers
on request
1
Thumbwheel
S = sb/st
T = sb/ct
1 = Fig. 1
2 = Fig. 2
3 = Fig. 3
4 = Fig. 4
(See note 1)
(See note 2)
18 mm Carbon
Potentiometer
Equivalent Noise Resistance:
Operating temperature**: 25°C + 70°C (13°F + 158°F)
* Others upon request.
(See note 4)
NOTE: The information contained here should be used for reference purposes only.
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If you wish to use your own custom plastic shaft/knob/actuator please contact Piher for advice about compatible materials.
With or without actuating knob
Optional SPST switch
Range of values*
Max. Voltage: 200 VDC (lin) 100 VDC (no lin)
Nominal Power 50°C (122°F) (see power rating curve)
0.25 W (lin) 0.12 W (no lin)
Tolerance*: ± 20%
± 30%
Taper* (Log. & Alog. only Rn > 1K) Lin ; Log; Alog.
Tolerance
2020 = +/-20%
3030 = +/-30%
2020
Taper
A = Linear
B = Log.
C = Alog.
Value
78
negative tolerance
Tolerance (non standard), upon request.
positive tolerance
Example code:
Number of zeros
2 first digits of the value.
(2) Value: Code: 10 1
Others values upon request.
(3) +7
-5 =07 05
Rotary switch with Alog. curve is not available.
Switch option not available with antilog taper.
(4)
(1) T
humbwheel
:S = without knob, without screw
T = without knob, with screw
Fig. 1, 2 y 3: countersunk knob
Fig. 4: knob with screw
knob colour: Black
** Up to 85°C depending on application.
Residual resistance*:
473
28
3.05
3
96 TEETH 1.85
THUMBWHEEL
(Max. 16 digits)
+ DRAWING NUMBER
T-18 A I
TYPICAL VARIATIONS
TESTS
ELECTRICAL LIFE
MECHANICAL LIFE : POT.
TEMPERATURE COEFFICIENT
THERMAL CYCLING
DAMP HEAT
VIBRATION (for each plane X,Y,Z)
1.000 h. @ 50
o C; 0.25 W
25.000 (10-15 CPM)
25 ° C; +70 ° C
16 h. @ 85 ° C; 2h @ 25 ° C
500 h. @ 40 ° C @ 95% HR
2 h. @ 10 Hz - 55 Hz.
NOTE: Out of range values may not comply these results.
This way of ordering should be used for options which are not included in the "How to order" standard and optional extras.
1.85
3.05
6.4
18.6
16.5
2.8
1.85
23.5
3.05
96 TEETH
23.5
16.5
4
3.1
2.3
96 TEETH
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SWITCH
20
10
16
11.5
1
0.5 A; 12V DC
25°±10°
10.000
SWITCH RATING
SWITCH OPERATING ANGLE
MECHANICAL LIFE (CYCLES)
ELECTRICAL AND MECHANICAL
7.5
Ø 1.3
Ø 2.2
4
HOW TO ORDER CUSTOM DRAWING
16
4.5
2.3
10.5
15
1
1
20
10
DETAIL
DETAIL DETAIL
4
2.3
0.05
0.05
4.5
6.7
2
1
R 2
21
1.9
5
16
4.5
2.3
A = Initial S = Wiper E = Final
A
S
E
POWER RATING CURVE
TERMINALS
T-18 A
±5 %
±3 % (Rn < 1 M)
±300 ppm (Rn <100 K)
±2.5 %
±5 %
±2 %
79
W (%)
100
%
40
%
50°
70°
°C
10
20
M 1.7
0.5
3.5 1
0.4
0.7
SCREW FOOTPRINT
T-18 B
Fig. 2 /
REF. 5951
Fig. 1 /
Ref. 5950
Fig. 3 /
Ref. 5952
Fig. 4 /
Ref. 5953
(Screw Ref. 5342
is required)
RECOMMENDED CONNECTIONS
Piher potentiometers recommended
connection circuit for a position sensor or
control application.
(voltage divider circuit electronic design).
RAD
RL
RL 100 x R
VCC
C
Noise filter.
Ground.
E
A
S
Pb
A
c
c
o
r
d
i
n
g
t
o
E
L
V
(
2
0
0
0
/
5
3
/
E
C
)
/
R
o
H
S
2
(
2
0
1
1
/
6
5
/
E
U
)
All Piher products can be adapted to meet customer´s requirements.
Please always use the latest updated datasheets published at our website www.piher.net.
Disclaimer
The product information in this catalogue is for reference purposes. Please consult for the most up to date and accurate design information.
Piher Sensors & Controls S.A., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, Piher), disclaim
any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product described
herein.
Piher disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to
the maximum extent permitted by law. The product specifications do not expand or otherwise modify Pihers terms and conditions of sale, including
but not limited to the warranty expressed therein, which apply to these products.
No licence, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Piher.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated.
Customers using or selling Piher products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully
indemnify Piher for any damages arising or resulting from such use or sale. Please contact authorised Piher personnel to obtain written terms
and conditions regarding products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
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responsible to ensure that usage and/or transfer of any information contained in this document complies with all relevant export control regulations. If you are in any doubt about the export control
restrictions that apply to this information, please contact the sender immediately. For any Piher Exports, Note: All products / technologies are EAR99 Classified commodities. Exports from the
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