MEGGITT CITEC
POTENTIOMETERS
INDUCTORS,
SURFACE MOUNT DEVICES
SWITCHES, NETWORKS
ENCODERS, SENSORS
Spindle Operated Potentiometers
TYPE 23 SERIES
A popular range of 20mm control potentiometers, the type
23 ser ies can be tailored to suit more specific
requirements. The potentiometers are available with printed
carbon resistance element, choice of bush lengths in
metal or plastic and insulated shafts up to 50mm in length.
In addition BS approved mains and low current switches
are available as standard options.
MEGGITT CITEC
KEY FEATURES
VERSATILE DESIGN CAN BE CUSTOMISED
TO SUIT YOUR REQUIREMENTS
0.4 WATT AT 40°C
DIE CAST METAL BUSH AVAILABLE
INSULATED BUSH AVAILABLE
INSULATED SHAFTS UP TO 50mm
EYELET OR PC TERMINATIONS
RUGGED CONSTRUCTION
MOUNTING BRACKET
AUDIO LAWS AVAILABLE
DUAL GANG AND DUAL CONCENTRIC STYLES
MEGGITT
ELECTRONIC
COMPONENTS
SALES ACTION DESK
TEL: (01793 611666)
FAX: (01793 611777)
EMAIL:sales@megelec.co.uk
WEB: www.meglec.co.uk
LOG No FO144
ISSUE 6
4 PAGES
12-99
SPECIFICATION
ELECTRICAL
Resistance Range ( Law ):
Resistance Values:
Resistance Tolerance:
Rated Dissipation at 40°C:
Limiting Element Voltage:
Electrical Rotation:
Terminal Resistance:
Noise (ENR):
Insulation Resistance:
Voltage Proof:
TYPE 23 SERIES
2 OF 4
1K to 1M (Linear)
4K7 to 470K (Non Linear)
1, 2.2 and 4.7 per decade
± 20% (± 10% by selection)
0.4W (Linear), 0.2W (Non Linear)
500V DC or AC RMS
267° without switch, 232° with switch
5 Ohms maximum
2% maximum (Linear), 3% maximum (Non Linear)
4G minimum
1000 V AC peak
RESISTANCE LAWS
100
PERCENT VOLTAGE RATED OUTPUT
A. - Linear
B. - Log
C. - Inverse Log
90
80
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
B
C
A
% EFFECTIVE ELECTRICAL CLOCKWISE ROTATION
MECHANICAL
Operating Torque:
Mechanical Rotation:
End Stop Torque:
15 mNm maximum
300°
800 mNm maximum
ENVIONROMENTAL
Limits of Resistance Change:
Temperature characteristics of resistance:
Bump Severity:
Vibration Severity:
Climatic Catagory:
Mechanical Endurance:
15% (After 1000 hours endurance)
5% ( -55°C to 125°C )
390m/s², 4000 Bumps
10 - 500 Hz, 0.75mm or 98m/s²
8 days @ 36°C 82% RH R < 15%
15000 Operations (minimum)
DIY DESIGN
The 23 Series can be customised to suit your individual requirements with features such as detent action, track centre tap etc.
Please call our technical sales team to discuss variations on these 20mm diameter devices.
SPECIFICATION
DIMENSIONS
20.4
10.7
TYPE 23 SERIES
L ± 0.5
21.6
11.3
3 OF 4
L ± 0.5
15
4
25.2
12.9
W
1.1 x 0.45
18.2
1.3
0.45
3.9
Viewed on
component side
X
Y
15
4
1.1 x 0.45
1.3
12.9
25.2
W
4.6
Y
X
0.65 x 1.1
10
10
TYPE 24
Viewed on
component side
TYPE 23
23.0
A S E
10
10.8
5.7
A SE
20.3
20.4
L ± 0.5
9.6 10.7
W
23.1
12.9
L ± 0.5
25.2
12.9
18.2
22.2
10.2
X
0.45 x 1.1
4
18.2
X
11
4
0.45 x 1.1
Y
TYPE 26
1.6
TYPE 25
A S E
Chassis piercing
L ± 0.5
10
20.4
20.4
1.3
Viewed on
component side
10.7
W
23.1
12.9
18.2
4
10.2
1.1 x 0.45
18.2
X
Y
0.45 x 1.1
L ± 0.5
4.2
12.7
10
1.3
20.9
2
1
X
W
3.9
Y
15
4
25.2
12.9
TYPE 27
1.3
Viewed on
component side
A S E
10
12.7
TYPE 28
20.9
L2
L1
PCB piercing
plan
4
15
4
3.9
6
10
TYPE 29
1.3
10
9.2
0.5
3.0
8.5
11.07
10
5
15.3
15.3
1.4
L
10
1.3
10
L
2.8
3.0
1.3
1.4
0.45 x 1.1
SWITCHED
TYPES
3.9
PCB piercing
plan
HOW TO ORDER
TYPE 23 SERIES
4 OF 4
23
POTENTIMETER TYPE
E
X
CUSTOMER IDENTITY
S - Standard
X - Customer Special
See drawing
(provide copy with
order)
D - Special Cut and Mtd
track
A
104
RESISTANCE VALUE
RESISTANCE VALUE
T he first two digits are
significant figures of
resistance value and
the third denotes the
number of zeros
following
100 k Ohms : 101
4.7 k Ohms : 472
22k Ohms : 223
100k Ohms : 104
M
L
DETAILS
BUSH DETAILS
L - Diecast M10 x 9mm
no location lug
6mm Hole
W - Diecast M10 x 9mm
with locator
6 mm hole
Y - Diecast M10 x 9mm
no locator 4mm hole
M - Diecast 3/8" x 8mm
with location lug
6.35mm hole
K - Diecast 3/8" x 8mm
no locator 6.35mm hole
P - Diecast M7 x 6mm
no locator 4mm hole
S - Insulated M10 x 7mm
6mm Hole
T - Insulated M10 x 10mm
6mm Hole
U - No Bush
F - Diecast 3/8" x 12mm
6.35mm hole
G - Diecast 3/8" x 8mm
no locator
4mm hole
B
22
SHAFT LENGTH
FMF in mm
ie 22mm
A
23 - Std Spindle Style
24 - Standard 20mm with
Mounting Bracket
25 - No Bush Mounting
Bracket terminations
swept forward
parallel to shaft
26 - Pc terminations
swept down to
board for rear
mounting
27 - Dual gang style
single shaft same
value/tol on each
section
Terminations
28 - Pc Terminations
swept forward
parellel to shaft
29 - Dual Concentric
style
TERMINATION STYLE
TERMINATION
E - Std Eyelet
P - Std Pc 15mm MH
R - Long Pc
X - Extra long Pc
S - Pc bent forward
at 90°
RESISTANCE LAW
RESISTANCE LAW
A - Linear
RESISTANCE
RESISTANCE TOLERANCE
SHAFT STYLE
A - PLAIN 6mm
B - SLOTTED 6mm
C - FLATTED 6mm
FLATTED
5mm A/F
D - FLATTED 6mm
FLATTED
deep flat 4mm A/F
E - PLAIN 4mm
F - FULL 6.35mm
flat - special angle
FLATTED
G - FLATTED 4mm
H - PLAIN 6.35mm
FLATTED
J - FLATTED 5.5mm
L - FLATTED 6mm
FLATTED
4.6mm A/F
M - FLATTED 6.35mm
FLATTED
alloy
SWITCH DETAILS
DETAILS
A - DPST -
4A/250 V Ac
B - SPST - Eyelet
termination
C - DPDT -
Changeover
switch
D - DPST - Eyelet
terminations
on rear 1A
N - No Switch
T - SPST PC
terminals
M - 20%
B - log
K - 10%
Inv.
C - Inv. Log
N.B. Where a potentiometer is rear mounting then the SHAFT
LENGTH is measured from the PCB to the tip of the shaft whether
or not it is fitted with a mounting bush.
Meggitt Electronic Components Ltd. Ohmic House, Westmead Industrial Estate, Swindon, Wilts. SN5 7US
Telephone: (01793)487301 (Admin.) (01793) 611666 (Sales) www.megelec.co.uk Citec G Fax:(01793) 610217 or 51
This publication is issued to provdie outline information only and (unless specifically agreed to the contrary by the Company in writing) is not to form part of any order
or be regarded as a representation relating to the products or service concerned. We reserve the right to alter without notice the specification, design, price or conditions
of supply of any product or service. Whilst Meggitt Electronic Components products are of the very highest quality and reliability, all electronic components can occasionally
be subject to failure. Where failure of a Meggitt Electronic Components product could result in life threatening consequences, then the circuit and application must be discussed
with the Company. Such areas might include ECG, respiratory. and other medical and nuclear applications and any non fail safe applications circuit.
