Data Sheet for Precision Potentiometer
Multiturn Wirewound Potentiometer Series AL17/19
The AL(R)17/19 potentiometers in 22 mm housing are suitable
AL(R)17/19
for applications where a precise and economical multiturn
soldering lugs
potentiometer is important.
Economical and precise multiturn sensor with numerous options
Simplified installation due to connector version
AL(R)17/19xxM Version ALR17/19 with integrated slipping clutch
sealed housing IP67 Version with sealed housing IP67
The shaft diameters Ø6,35 AL(R)17 and AL(R)19 Ø6.00 mm are equipped with
a screwdriver slot. In addition, an optional integrated slipping clutch protects
the potentiometer from damage by overrunning the end stops and facilitates
the zero point adjustment. The potentiometer is available in 3, 5 or 10 turn
version (optional in 1, 2, 4, 6, 7 or 8 turn). The radial gold-plated connection
AL(R)17/19 pins are suitable for flat connectors (2.8 mm according to DIN 46247 part 3)
connector and the connector version simplifies the mounting.
Electrical Data 3-turn 5-turn 10-turn
Effective electrical angle of rotation 1.) 1080° ±5° 1800° ±5° 3600° ±5°
Total resistance 1.) 0,1..10 kOhm 0,1..50 kOhm 0,1..100 kOhm
Resistance tolerance ±5% (±1%)
±0,15% R≥ 5k
±0,25% R< 5k
Independent linearity (best straight line) 1.) ±0,25% ±0,25%
(±0,1% R≥ 5k /
±0,15% R< 5k)
Theoretical resolution 1.) Depends on resistance value (see table below)
Backlash (Hysteresis) 1.) ≤ 2°
Rotational noise (ENR) 1.) (Method C) 100 Ohm
Max. / recommended wiper current 1.) 35 mA / 2 µA
Power rating @ 70°C (0W @ 105°C) 0,5 W 1W 2W
Insulation Voltage 1.) 1000 VAC, 1min
Insulation Resistance 1.) 1000 MOhm @ 500 VDC
Mechanical Data, Miscellaneous 3-turn 5-turn 10-turn
Mechanical angle of rotation 1080° +10° 1800° +10° 3600° +10°
Lifetime (90% el. eff. angle half sine) 2.) 300.000 rotations 500.000 rotations 1 Mio. rotations
Max. operational speed 40 rev. / min.
Bearing Brass bearing
Operational torque @ ambient temperature 1.) 2.) 10 Nmm
End stop torque 1.) 2.) 35 Ncm
Operating temperature range -20..+105°C
Storage temperature range -55..+105°C
Protection grade (IEC 60529) / housing protection IP40 (optional IP67)
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 19 mm
Shaft diameter (AL17/19) 6,35 mm / 6,00 mm
Shaft type Solid shaft
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich Date: 07/22/2020
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de Page: 1 of 6
Specifications are subject to change without notice
Data Sheet for Precision Potentiometer
Multiturn Wirewound Potentiometer Series AL17/19
Mechanical Data, Environmental Condi-
3-turn 5-turn 10-turn
tions, Miscellaneous
Max. radial load ≤1 N
Max. axial load ≤1 N
Connection type Gold plated soldering lugs, optional with integrated connector
Connection position Radial
Sensor mounting Bushing
Mass app. 23 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
Number of wire turns / resolution
Resistance value Ohm 100 200 500 1k 2k 5k 10k 20k 50k 100k
Number of wire turns
820 920 1270 1350 1270 1990 2570 - - -
(AL(R)1703/AL(R)1903)
Number of wire turns
1240 1560 2000 2510 2400 3200 3900 4800 5500 -
(AL(R)1705/AL(R)1905)
Number of wire turns
2100 2480 3300 4000 5020 5000 6400 7800 10100 11000
(AL(R)1710/AL(R)1910)
Resolution in degree E.g. R5k 5-turn = 1800° / 3200 = 0,563° per winding resistive wire
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich Date: 07/22/2020
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de Page: 2 of 6
Specifications are subject to change without notice
Data Sheet for Precision Potentiometer
Multiturn Wirewound Potentiometer Series AL17/19
Order code
Description Selection: standard=black/bold, possible options=grey/cursive
Series: AL
Slipping clutch:
Without additional mechanics -
With integrated slipping clutch R
Shaft diameter:
Ø 6,35 mm 17
Ø 6,00 mm 19
Revolutions with stop:
Option 1-turn 01M
Option 2-turn 02M
3-turn 03M
Option 4-turn 04M
5-turn 05M
Option 6-turn 06M
Option 7-turn 07M
Option 8-turn - on request 08M
10-turn 10M
Resistance value /Option Tandem: Tandem
Option 100 Ohm R100 /100
Option 500 Ohm R500 /500
1 kOhm R1k /1k
Option 2 kOhm R2k /2k
5 kOhm R5k /5K
10 kOhm R10k /10K
Option 20 kOhm (only 5 to 10 Turn) R20K /20K
Option 50 kOhm (only 5 to 10 Turn) R50K /50k
Option 100 kOhm (only 10 Turn) R100K /100k
Option rear shaft (not with IP67):
AL(R)17 = Ø6,35 x 15 mm RA
AL(R)19 = Ø6,00 x 15 mm RA
Shaft length in mm RAxx,xx
Shaft diameter in mm (≤6,35 mm) RADMx,xx
Resistance tolerance:
±5% W5%
Option ±1% W1%
Independent linearity:
±0,25% (3 to 5-turn / R< 5k 10-turn) L0,25%
±0,15% R≥ 5k (10-turn) L0,15%
Option ±0,15% (10-turn) R < 5kOhm L0,15%
Option ±0,10% (10-turn) R ≥ 5kOhm L0,1%
Electrical connection:*
With soldering lugs -
With connector ST
Option center tap: CT
(only 10-turn / not with connector)
Front shaft:
AL(R)17 = Ø6,35 x 20,6 mm -
AL(R)19 = Ø6,00 x 20,6 mm -
Option shaft length in mm Ax,xx
Option shaft Ø in mm (≤6,35 in mm) DMx,xx
Screwdriver slot standard: -
Sealing:
Standard is without sealing -
Option D with shaft sealing D
Option housing protection IP67 IP
(Option D included)
For higher quantities or on-going demand, additional options are available as described below on request
For Example: Multi ganged potentiometers (max. 10), high torque version, sealed housing case, special electrical and mechanical angles of rotation, and special
resistance and linearity tolerances. Furthermore we can mount gear wheels or attach cable assemblies with or without connectors and much more.
Note: If you choose the slipping clutch (R) and your application is with the shaft directed downwards, we strongly recommend to order the bearing in the rear lid
too - please choose the series ALI17/19.
*Please note: Version with sealed housing only available with rear connector. So there is no possibility for rear shaft
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich Date: 07/22/2020
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de Page: 3 of 6
Specifications are subject to change without notice
Data Sheet for Precision Potentiometer
Multiturn Wirewound Potentiometer Series AL17/19
Drawing
AL(R)19 DM= Ø6,00
AL(R)17 DM= Ø6,35 Option: rear shaft extension
multiganged 7.9
1.6
Ø10.32 -0.05
Mounting Surface
30°
±5°
ØRADM -0,05
0
1 3
ØDM -0.05
x. 3/8"-32 UNEF
0
2 Y a 2
0
6. 5m
R1
1.2
CW
1.6
1
7.6 ±0,2
5 19 ±1 20.6±1
. 22±1 39 ±1
Ø1 15 ±0,5
Option KA (on request) pin Assignment (rear view) Dimensions in mm
2 3 NC 1 Connection
Detail Y Ø1.5
diagram
terminal
2.8
1 3
2 CW
Leads S=0.5 3.5
Clamping screws
5
Option Connector ST
16.72 ±0.50 WE 3611
10.50 ±0.50
(0.15 .. 1.5 mm²) Ø22 ±1
9 ±1
22.40 ±1
Ø1.50 ±0.10
7.60 ±0.20
CCW
19 ±1
CW
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich Date: 07/22/2020
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de Page: 4 of 6
Specifications are subject to change without notice
Data Sheet for Precision Potentiometer
Multiturn Wirewound Potentiometer Series AL17/19
Drawing option IP-Housing
DM
Detail C
Dimensions in mm
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich Date: 07/22/2020
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de Page: 5 of 6
Specifications are subject to change without notice
Data Sheet for Precision Potentiometer
Multiturn Wirewound Potentiometer Series AL17/19
On Request: Special machining on shaft
Slot Groove
d±0.05
±0.1
L W
W
±0.2 ±0.05
Flat Round top
+1
L 0
W
Ø S R
Double side flat Counterbore hole
+1
L
+ 0.1
±0.1
d0
W
+1
L 0
Step Counterbore screw hole
d
L ±0.2 +1
M
L 0
Screw Thread Pin hole
+ 0.1
d0
L
+1
0
M L ±0.2
Knurled(Parallel) Screw thread inside hole
M
L ±1 m=0.18 L ±0.2
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich Date: 07/22/2020
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de Page: 6 of 6
Specifications are subject to change without notice
