Series 026
®
Industrial 15/16"
(24mm) Diameter,
5-Watt, Wirewound
Variable Resistors
Features
•
Dust-proof construction
•
Water splash proof construction available
•
5-watt power rating
•
Superior resistance stability in temperature
and environment change
•
Tandem constructions available
•
Bushing or twist tab mounting
power switches
•
Excellent linearity performance
• RoHS compliant
•
Available with pull-push and rotary
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
5 watts @25°C, 4 watts @ 55°C, derated to
no load at 105°C, linear taper
(Derating required on two section countols.)
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.
Resistance Tapers
Standard: Linear or 20% audio
Special: Consult CTS
Linearity
Standard: 3% linearity
Special: Consult CTS
Power Switches
Rotary Pole-SPST, DPST & SPDT
Pull-Push Pole-SPST (Pull-ON, Push-OFF)
Rotational Angle
Mechanical Rotation:
Without switch: 300°±5°
With switch:
300°±5°
Effective Rotation:
Without switch: 280°±5°
With switch:
265°±5°
Rotational Torque:
Standard: 3/4 to 6 in. oz (54 - 432 gf-cm)
Special: higher torque models available, consult CTS
Operating Temperature
-30°C to +85°C
(continued on next page)
1-4
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
10/15/06
Shaft Center to Lug
Shaft Information
Standard: .438" (11.1mm)
Available for round, flatted, knurled, or slot metal shaft
Special: .531" (13.5mm) available
Diameter: 6.35mm (.250")
Consult CTS for custom-made metal and economic plastic shaft
Special Features and Constructions
Mounting Information
Terminals accepting push-on connectors available.
Bushing Mount
Straight or concentric tandem constructions.
Diameter: EIA standard 3/8-32 UNEF-2A thread
Can be combined with 450 series, 15/16" (24mm) diameter,
to make any combination of straight or concentric tandem
Standard length: 9.53mm (.375") or 6.35mm (.250")
constructions with or without switch.
Consult CTS for custom-made metal and economic plastic
Long life constructions available.
bushing
Twisted Tab Mounting Available
Locating Lugs
Standard: Left lug with terminals facing inward
Available: No lug, right lug or two lugs with terminals
facing inward
Long Life Construction
This construction provides an extended life of 50K and 100K
cycles. Consult CTS for details.
T026
Metal Shaft, Bushing Mounting, Type "T" Solder Lug Terminals
11.9
.469
MTG. SURFACE
3/8-32 UNEF-2A
3.18
.125
Ø23.8
.937
M AX.
19.8
.780
11.1
.437
CLEARANCE HOLE
4.16±0.08
.164±.003
2.08±0.08
.082±.003
1
3
1.57±0.08
.062±.003
±0.4
"A" ±.016
±0.8
"L" ±.031
MAX.
22.2
.875
TERMINAL (3) HOLES Ø2.18 /.086
2
±0.08 ±0.08
10.41 10.41
.410 .410
±.003 ±.003
WIPER
CW
3
CLOCKWISE
CIRCUIT
1.57±0.08
.062±.003
MOUNTING HOLE DETAIL
2
CCW
1
DIMENSION:
mm
inch
X026 / Y026
Metal Shaft, Bushing Mounting, Printed Circuit Type X/Y Terminals
MTG. SURFACE
"A" ±0.4
±.016
11.1
.437
3.18
.125
Ø23.8
.937
MTG. SURFACE
REF.
2.03±0.05
3.68
.080±.002
.145
Ø2.08±0.05
.082±.002
(6) HLS.
3/8-32NEF-2A
4.0
.156
1
2
3
X=17.5
.687
22.0
Y=
.867
TYP.
7.92
.312
MOUNTING HOLE DETAIL
2
CCW
1
CLOCKWISE
CIRCUIT
WIPER
CW
3
"L"±0.8
±.031
TYP.
7.92
.312
4.9
.191
DIMENSION:
mm
inch
2-4
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
10/15/06
U026
Metal Shaft, Bushing Mounting, Printed Circuit Type “U” Formed Terminals
MTG. SURFACE
CLEARANCE HOLE
11.1
.437
3.18
.125
11.9
.469
4.16±0.08
.164±.003
(2)
(2)
(2)
Ø23.8
.937
1.57±0.08
.062±.003
±0.08
10.41
.410
±.003
14.83
.58
3/8-32 UNEF-2A
±0.4
"A" ±.016
±0.8
"L" ±.031
1
2
3
MAX.
22.2
.875
(2)
MOUNTING HOLE DETAIL 7.87
.31
2
CCW
1
CLOCKWISE
CIRCUIT
WIPER
CW
3
Ø2.54 (3)
.1
DIMENSION:
mm
inch
V026
Metal Shaft, Bushing Mounting, Printed Circuit Type “V” Formed Terminals
4.16±0.08
.164±.003
11.9
.469
MTG. SURFACE
3/8-32 UNEF-2A
Ø 2 3 .8
.9 3 7
3.18
.125
11.1
.437
CLEARANCE HOLE
2.08±0.08
.082±.003
34.5
1.36
REF.
1.57±0.08
.062±.003
3
±0.08 ±0.08
1.57±0.08
10.41 10.41
.062±.003
.410 .410
±.003 ±.003
MOUNTING HOLE DETAIL
±0.4
"A" ±.016
±0.8
"L" ±.031
1
2
1 9 .8
.7 8 0 M A X .
22.2 MAX.
.875
2
CCW
1
CLOCKWISE
CIRCUIT
WIPER
CW
3
7.92(2)±0.05
.031±.002
Ø2.08±0.05
.082±.002
2.03±0.05
.080±.002
PCB LAYOUT
DIMENSION:
mm
inch
S026
Metal Shaft, Bushing Mounting, Faston Type “S” Formed Terminals
MTG. SURFACE
CLEARANCE HOLE
4.16±0.08
.164±.003
2.08±0.08
.082±.003
11.9
.469
3/8-32 UNEF-2A
3.18
.125
11.1
.437
Ø 2 3 .8
.9 3 7
1.57±0.08
.062±.003
±0.4
1
2
3
"A"
±.016
"L"
8.0
.315
±0.08 ±0.08
10.41 10.41
.410 .410
±.003 ±.003
1.57±0.08
.062±.003
MOUNTING HOLE DETAIL
2
CCW
1
CLOCKWISE
CIRCUIT
WIPER
CW
3
±0.8
±.031
22.2 MAX.
.875
DIMENSION:
mm
inch
3-4
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
10/15/06
VPE026
Metal Shaft, Twist TAB Mounting, Type “V” Formed Terminals
MTG. SURFACE
11.9
.469
±0.8
“L” ±.031
8.33 CENT.
.328
MAX.
23.5
.925
MIN.
21.1
.832
7.92(2)±0.05
.031±.002
Ø2.08±0.05
.082±.002
2.03±0.05
.080±.002
PCB LAYOUT
2
CCW
1
2
3
1
CLOCKWISE
CIRCUIT
WIPER
CW
3
CLEARANCE HOLE
4.17
.164 CENT
REF.
34.5
1.358
Ø23.8
.937
3.96
.156
CENT.
1.57
.062
10.41 10.41
.410 .410
1.57
.062
MOUNTING HOLE DETAIL
DIMENSION:
mm
inch
22.2 MAX
.875
* Consult CTS for details
T2-026
Dual-section, Metal Shaft, Bushing Mounting, Type “T” Solder Lug Terminals
23.0
.906
MTG. SURFACE
±0.8
"L" ±.031
(R)
(P)
CLEARANCE HOLE
11.1
.437
2
CCW
1
WIPER
CW
3
6
5
WIPER
3.18
.125
4.16±0.08
.164±.003
2.08±0.08
.082±.003
23.8
.937
MAX
19.8
.780
4
3/8-32 UNEF-2
±0.4
"A" ±.016
1
4
2
5
3
6
CLOCKWISE
CIRCUIT
1.57±0.08
.062±.003
TERMINAL HOLES Ø2.18/.086
* More multi-section models available, consult CTS for details
22.2
.875 MAX.
±0.08 ±0.08
1.57±0.08
10.41 10.41
.062±.003
.410 .410
±.003 ±.003
MOUNTING HOLE DETAIL
DIMENSION:
mm
inch
Ordering Information
026
T
2
20
R
SHAFT TRIM
103
B
RESIST TOL
A
- ±10%
B
- ±20%
D
- ±5%
1
A
1
SPECIALS
1
- LOCATING
LUG LEFT
SIDE
2
- LOCATING
LUG RIGHT
SIDE
3
- NO
LOCATING
LUG
5
- LOCATING
LUG BOTH
SIDE
TERMINAL STYLE
T
-
X
-
Y
-
U
-
SOLDER LUG
PC .687”(17.5mm)
PC .867”(22.0mm)
FORMED
TO FRONT
V
- FORMED
TO REAR
S
- FASTON
METAL MOUNTING
STYLE “A”
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
-
-
-
-
R
- ROUND
F
- FLATTED .375"X.156"
(9.53mmX4.0mm)
K
- KNURLED
EIA S148 24 TEETH
S
- SD SLOT .063" DEEP
X.047" WIDE
(1.6mmX1.2mm)
TAPER
1
- LINEAR
2
- 20%AUD
3
- 20%CCW AUD
METAL SHAFT LENGTH “L”
FROM MOUNTING SURFACE
1/32"INCREMENTS
EXAMPLES:
20
- .625"(6.35mm)
24
- .750"(19.5mm)
28
- .875"(22.2mm)
32
- 1.000"(25.4mm)
* CONSULT CTS FOR
SPECIAL REQUIREMENTS
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
FR-K
FR-GC
CURRENT RATING
6AMP@125VAC
3AMP@125VAC
1AMP@250VAC
3AMP@125VAC
3AMP@125VAC
3AMP@125VAC
1AMP@250VAC/DC
* CONSULT CTS FOR DETAILS
4-4
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
10/15/06
