Data Sheet for Precision Potentiometer
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 04/19/2022
Page: 1 of 5
Conductive Plastic Potentiometer
Series MP20/21
Specications are subject to change without notice
The MP20/21 potentiometers in 22 mm housing are for applications
where precise long-lasting and compact sensors are important.
Long life and accuracy
With or without mechanical end stop (320° / 360°)
Compact sensor with low installation depth 12 mm
A potentiometer with many options
The conductive plastic potentiometer MP20/21 (MP21 with mech. end-
stop) is a multitalent which is adaptable for a wide range of applications.
Note: The versions MP21 with stop are also used as manual control
Electrical Data
MP20 MP21
Eective electrical angle of rotation 1.)
320° ±5°
Total resistance 1.) 0,5..100 kOhm
Resistance tolerance ±15% (±10%)
Independent linearity (best straight line) 1.) ±1% (±0,5%)
Theoretical resolution
Nearly innite
Backlash (Hysteresis) 1.) ≤ 0,5°
Max. / recommended wiper current 1.) 10 µA / 2 µA
Power rating @ 70°C (0W @ 105°C)
1 W
Insulation Voltage 1.) 500 VAC, 1min
Insulation Resistance 1.)
1000 MOhm @ 500 VDC
Mechanical Data, Environmental Condi-
tions, Miscellaneous
MP20 MP21
Mechanical angle of rotation 360° without stop 320° +10° with stop
Lifetime (90% el. e. angle half sine) 2.) 10 Mio. rotations
Max. operational speed 400 rev. / min.
Bearing Sleeve bearing
Operational torque @ ambient temperature 1.) 2.) 5 Nmm
End stop torque 1.) 2.) - 60 Ncm
Operating temperature range -55..+105°C
Storage temperature range
-55..+105°C
Protection grade (IEC 60529) IP40
Protection option D shaft sealing (IEC 60529)
IP65 optional
Vibration (IEC 68-2-6, Test Fc)
15g 10..2000Hz x 12h
Shock (IEC 68-2-27, Test Ea)
49g @ 11 ms x 18
Housing diameter
22 mm
Housing depth
12 mm
Shaft diameter
6,00 mm (optional 6,35 mm)
Shaft type
Solid shaft
Data Sheet for Precision Potentiometer
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ www.megatron.de ▪ info@megatron.de
Date: 04/19/2022
Page: 2 of 5
Conductive Plastic Potentiometer
Series MP20/21
Specications are subject to change without notice
Mechanical Data, Environmental Condi-
tions, Miscellaneous
MP20 MP21
Max. radial load ≤1 N
Max. axial load ≤1 N
Connection type Gold plated soldering lugs
Connection position Radial
Sensor mounting Bushing
Mass 20 g
Fastening parts included in delivery Nut, toothed washer
Fastening torque mounting nut 150 Ncm
Material shaft Stainless steel
Material housing
Reinforced fibreglass PA66
1.) According IEC 60393
2.) Determined by climatic conditions according to IEC 68-1, para. 5.3.1 without load collectives
Please note: Max. permissible supply voltage <75 VDC respectively <50 VAC in addition the max. power rating must be observed