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Datasheet: 275T220A103B1A1 (CTS Corp.)

Commercial Miniature 5/8 (16mm) Diameter Composition Variable Resistors

 

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CTS Corp.
Commercial
Miniature 5/8"
(16mm) Diameter
Composition
Variable Resistors
Miniature 5/8" (16mm) size
Versatile mounting styles:
bushing
twist tab
bend tab
snap-in PC bracket
solder lug or PC terminals
(shaft parallel or perpendicular to the panel)
100
to 5 Meg resistance range
Molded or metal shafts
SPST power switches
Single, tandem, or concentric units
Panel seal
Rear extended shaft
Series 270
Technical Data Sheet 1448C
C T S C O R P O R A T I O N /
M A N U F A C T U R E R O F R E L I A B L E E L E C T R O N I C C O M P O N E N T S
Electrical and Mechanical Specifications
Resistance Range
100
through 5 Meg (linear taper).
Resistance Tolerance
Standard: 20%
Special:
Other tolerances available in most
resistance values.
Power Rating, Watts
1
/
4
watt per section through 100K
1
/
5
watt per section above 100K
Full rating @ 55C derated to no load at 85C,
linear taper, bushing mounted control on steel panel
4" x 4" x .050" (101.6mm x 101.6mm x 1.27mm).
(Derating required on two section controls.)
Voltage Rating
Bushings to Terminals:
High pot test, one minute -- 750 VAC
Operating maximum
-- 500 VDC
Across End Terminals:
350 VDC, load not to exceed listed wattage ratings.
Resistance Tapers
Standard: Linear, 10% Audio and 10% CCW Audio
Special tapers available to meet most requirements
Angle of Rotation
Total Rotation
Without Switch: 300 5
With Switch:
315 5
Effective Rotation
Without Switch: 300 (approximate)
With Switch:
290 (approximate)
Panel Mounting Information
Bushing Mount
Standard: Brass
(continued on next page)
Technical Data Sheet 1270E
Electrical and Mechanical Specifications
(continued)
All Other Mounts
Standard: Twist tab (designated by "1")
Special:
Bend tab -- 2 or 3 ears
Bracket mounted
Suggested Panel for Twist Tab
.042" thick (1.07mm)
Locating Lugs (Bushing Mount)
Standard: .312" (7.9mm) radius from center of control.
Special:
.375" (9.53mm) radius from center of control.
Standard Position: Left side supplied unless otherwise
specified.
Other Positions:
Available with lug right side,
without lugs, or with lugs both
left and right sides.
Water Seal Construction
Controls are also available to prevent water
from entering the control through either the
O.D. of shaft and/or the bushing.
Shaft and Bushing Information
Bushing Lengths Available
Standard: .187" or .250" (4.75mm or 6.35mm)
Special:
.125" increments (3.2mm increments)
Thread Size
Standard:
1
/
4
" 32
3
/
8
" 32
M7 x .75
M8 x .75P
Special:
As required
Molded Shafts Available
(Shown with preferred diameter bushing)
Bushing Mounted or Ear Mounted
Metal Shafts Available
(Shown with preferred diameter bushing)
Single or Dual Units
Concentric Tandem Units
Available in two combinations:
A .125" (3.2mm) diameter rear shaft
.250" (6.35mm) panel shaft
(3/8 32 or M9X.75)
B .156" (4.0mm) diameter rear shaft
.236" (6.0mm) diameter panel shaft
(3/8 32 or M8X.75)
Most metal shaft diameters can be used with
twist tab mountings. With bracket mount,
only .187 diameter shafts are used, with turn-down
available to obtain smaller diameters.
Metal
Lengths: Minimum .125" (3.2mm) beyond bushing;
special lengths as required.
Trims:
Plain round screwdriver slotted, flatted,
knurled. Other trims available
upon request.
Molded
Flatted and knurled with screwdriver slot available
in many lengths and diameters.
Terminal Information
Standard: T Solder lug formed 90 to the rear.
Special:
(See below)
T:
Solder lug perpendicular to shaft.
T:
Solder lug formed 60 to the rear.
U:
PC terminals formed 90 forward toward
mounting surface. Terminals extend .187"
(4.7mm) beyond mounting surface.
V:
PC terminals formed 90 to the rear, away
from panel mounting. Terminals extend .520"
(13.2mm) from mounting surface.
W: Wire wrap terminals -- .156" (4.0mm) terminal
extension beyond base, formed 60 to the rear.
BX: PC terminals standard .438" (11.1mm) from
center line of control to PC board; straight
terminals extend .156" (4.0mm) into PC board.
X:
PC terminals standard .505" (12.8mm) from
center line of control to PC board, with .136"
(3.4mm) straight terminal extension beyond
PC board standoff.
Y:
PC terminals standard .602" (15.3mm) from
centerline of control to PC board, with .140"
(3.5mm) straight terminal extension beyond
PC board standoff.
(continued on next page)
SHAFT DIAMETER
BUSHING DIAMETER
INCH
MM
INCH
MM
.156
4.0
1/4" 32
M7X.75
.187
4.7
--
M7X.75
.236
6.0
3/8" 32
M8X.75
.250
6.35
3/8" 32
M9X.75
SHAFT DIAMETER
BUSHING DIAMETER
INCH
MM
INCH
MM
.125
3.2
1/4" 32
M7X.75
.156
4.0
1/4" 32
M7X.75
.187
4.7
3/8" 32
M7X.75
.236
6.0
3/8" 32
M8X.75
.250
6.35
3/8" 32
M9X.75
Power Switches Available (all SPST)
Electrical and Mechanical Specifications
(continued)
ELECTRICAL
SERIES
TYPE
RATING
057
Rotary
5A @ 20 VDC
057
Rotary
3A @ 125 VAC
(UL approved)
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
ELECTRICAL
SERIES
TYPE
RATING
DEMI
Push-Pull
3A @ 20 VDC
DEMI
Momentary contact
3A @ 20 VDC
Push on
Switch Actuating Angle -25
Switch Actuating Torque - 2 to 10 in. oz.
(144 to 720g-cm)
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
T270 Solder Lug Terminals, Metal Shaft, Bushing Mount
BX PM270 PC Type Base "X" Terminals, 2-Ear Mount Bend Tab, Molded Shaft
UPE 270RE PC Type "U" Terminals, Twist Tab Mount, Metal Shaft, Rear Extension
XB275RE PC Type "X" Terminals, Metal Shaft, Rear Extension
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
DIMENSION:
MM
INCH
VPE 270 PC Type "V" Terminals, Twist Tab Mount, Metal Shaft
X057-BX270 PC Type Terminal SPST Switch, PC Style Base "X" Terminals, Metal Shaft, Bushing Mount
T2-270 Solder Lug Terminals, Straight Tandem, Metal Shaft, Bushing Mount
XP275 PC Type "X" Terminal, Metal Shaft, Twist Tab Mounting
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