Series 026
®
Commercial 15/16"
(24mm) Diameter,
5-Watt, Wirewound
Variable Resistors
•
Fully enclosed construction
•
5-watt power rating
•
Compact size
•
Superior resistance stability
•
Tandem constructions available
•
Economical
•
Bushing or twist tab mounting
•
Available with pull-push and rotary
power switches
•
3% maximum linearity
Electrical and Mechanical Specifications
Resistance Range
Linear: 1 ohm through 25K ohms
Audio: 20 ohms through 10K ohms
Resistance Tolerance
Standard: ±10%
Special: Tighter tolerance available in most
resistance values
Power Rating, Watts
o
o
5 watts @25 C, 4watts@55 C, derated to
o
no load at 105 C, 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
Bushing to Terminals:
High pot test, one minute --- 1,000 VAC
Operating maximum
--- 500 VDC
Across End Terminals:
350 VDC maximum, load not to exceed
wattage rating.
Operating Temperature
o
o
-10 C to +70 C
Resistance Tapers
Standard: Linear, 15% audio
Special: Consult factory
Taps
One tap at 50% of resistance and rotation available
on resistance values under 5K ohms.
Power Switches
Available in most constructions.
Angle of Rotation
Total Rotation:
o
Without switch --- 300
±
5
With switch
--- 300
o
±
5
Effective Rotation:
Without switch --- 280
o
approximate
o
With switch
--- 265 approximate
Turning Torque
0.75 to 6.0 IN.OZ. (45 to 360 g-cm)
Stop strength
Typical 8 to 15 Kg-cm (material dependent)
(continued on next page)
Technical Data Sheet 1448C
Technical Data Sheet 10/28/03 Rev A
CTS CORPORATION /
MANUFACTURER OF RELIABLE ELECTRONIC COMPONENTS
Shaft Information
Diameter: .250" (6.35mm)
Length: As required.
Trim:
Round, flatted, knurled or with
a screwdriver slot
Bushing Information
Diameter:
3
/
8
"-32 UNEF-2A thread.
Lengths:
Standard bushing:
3
/
8
" (9.53mm) or
1
/
4
" (6.35mm)
Special length:
Available as required
Metric bushings available. Consult CTS.
Radius: Standard: .438" (11.1mm)
Special: .531" (13.5mm) available
Rotational Life
Standard: 10,000 cycles
Special : 100,000 cycles
Mounting Hardware
Available upon request
Special Features and Constructions
Terminals accepting solderless push-on connectors
available.
Straight or concentric tandem constructions.
Compatible with 450 series,
15
/
16
" (24mm) diameter,
commercial composition variable resistor and can
be combined to make any combination of straight
or concentric tandem constructions with or without
switch.
Locating Lugs
Standard Position: Left side (with terminals down)
supplied, unless otherwise
specified.
Other Positions:
Available with right side only,
both left and right, or without lugs.
T026
Metal Shaft, Bushing Mounting, Type "T" Solder Lug Terminals
DIMENSION:
MM
INCH
C2-026
Printed Circuit Terminal Options
DIMENSION:
MM
INCH
C2-026
Concentric Tandem(Available in Two or More Sections) with Switch
DIMENSION:
MM
INCH
PM-026
Twist Tab Mounting, Molded Rotor(Available in Metal Shafts)
DIMENSION:
MM
INCH
K-026
K-026
Bushing Mounted, Single Section with Attached K Switch
(Pull-On Push Off)
DIMENSION:
MM
INCH
Ordering Information
026
TERMINAL STYLE
T
- SOLDER LUG
X
- PC
U
- FORMED
TO FRONT
V
- FORMED
TO REAR
T
2
MOUNTING STYLE
BUSHING LENGTH:
1/8" INCREMENTS
EXAMPLES:
2
3
8
1
.250" (6.35MM)
.375" (9.53MM)
1.000" (25.4MM)
TWIST TAB
MOUNT
A
- .250" (6.35MM)
DIECAST
B
- .375" (9.53MM)
DIECAST
BUSHING MOUNT SUPPLIED
WITH LOCATING LUG LEFT
SIDE TERMINALS DOWN
20
R
SHAFT TRIM
103
A
B
C
D
B
RESIST TOL
-
-
-
-
±10%
±20%
±30%
±5%
1
A
1
SPECIALS
1
- LOCATING
LUG LEFT
SIDE
2
- LOCATING
LUG RIGHT
SIDE
3
- NO
LOCATING
LUG
4
- LOCATING
LUG BOTH
SIDE
-
-
-
-
R
- ROUND
F
- FLATTED .375" X .156"
(9.53MM X 4.0MM)
K
- KNURLED
S
-
S D
SLOT .063" DEEP
X .047" WIDE
(1.6MM X 1.2MM)
TAPER
1
- LINEAR
2
- 15% AUD
3
- 15% CCW AUD
RESISTANCE CODE
EXAMPLES
CODE
5A0
501
102
252
502
103
253
RESISTANCE
5 OHMS
500 OHMS
1K
2.5K
5K
10K
25K
SWITCHES
A
- NONE
B
- SPST
C
- DPST
D
- SPDT
E
- SPST
F
- SPST
FUNCTION
ROTARY
ROTARY
ROTARY
PULL-PUSH
ROTARY
CTS TYPE
TGC
027
028
K-FR
GC-FR
CURRENT RATING
6AMP@125VAC
3AMP@125VAC
1AMP@250VAC
3AMP@125VAC
1AMP@250VAC
3AMP@125VAC
3AMP@125VAC
1AMP@250VAC/DC
SHAFT LENGTH
FROM MOUNTING SURFACE
1/32" INCREMENTS
EXAMPLES:
20
- .625"
24
- .750"
28
- .875"
32
- 1.000"
(6.35MM)
(19.5MM)
(22.2MM)
(25.4MM)
SWITCHES UL RECOGNIZED
FILE NO. E10412
Order From:
CTS CORPORATION
/ 406 Parr Road / Berne, Indiana 46711
TEL: (260)589-3111 / FAX: (260)589-3243
CTS COMPONENTS TAIWAN, LTD.
/ 7, Central 6th Road / Kaohsiung Export Processing Zone
Kaohsiung, Taiwan, Rep. of China
TEL: (07) 821-6145 / FAX: (07) 811-0040
