®
Commercial 3/4"
(19mm) Diameter,
2 watt Wirewound
Variable Resistor
• Fully enclosed construction
• Four mounting styles
• Long rotational life
• Optional grounded or insulated rotor
construction
• Incorporated fixed resistor available
• Available with nylon shaft
• Interchangeable mounting with
CTS series 110 preset potentiometers
Series 115
Electrical and Mechanical Specifications
Resistance Range
1 ohm through 20K ohms (linear taper)
Resistance Tolerance
Standard: ±20%
Special: ±5% or ±10%
Power Rating, Watts
2 watts @ 55°C derated to no load @ 105°C
mounted on steel panel
1.5 watts @ 55°C derated to no load @ 105°C,
mounted on bakelite panel
Voltage Rating
Terminals to case (insulated types only)
High pot test, one minute — 900 VAC
Operating maximum — 500 VDC
Across end terminals
Determined by resistance value and wattage rating
Resistance Taper
Standard: Linear taper only
Taps Available
None
Incorporated Fixed Resistor
A fixed resistor can be incorporated in the Series 115
at the end of CW or CCW rotation to a minimum of 15%
of the total resistance value. The rotation is shortened
by an amount proportional to the ratio of the fixed resistor
to the total resistance value.
Angle of Rotation
Tatol Rotation: 270° ± 5°
Resistor Adjustment
Standard: Cross slot provided in rotor for screwdriver
adjustment.
Special: Molded nylon, screwdriver-slotted shafts which
are integral with rotor are available in many lengths
in increments of 1/8" (3.2mm) up to a maximum
of 2" (50.8mm).Consults with the factory
Mounting Types Available
Printed circuit mounted: Type 115 P
Twist tab mounted: Type 115 T
Snap-in mounted: Type 116 E
Rivet ear mounted: Type 117 R
Terminal Information
Grounded Construction — The grounded construction is
supplied without a center terminal and the contactor is
connected to the case. This construction can be furnished
with one end terminal at either end of the resistance
element or with terminals at both ends of the element.
Insulated Construction — The contactor is insulated from the
base and connected to the center terminal on the insulated
construction. This construction can be supplied with the
center terminal and one end terminal at either end of the
resistance element or with the center terminal and terminals
at both ends of the resistance element.
Rotational Torque
1/2 to 10 in-oz. (36 – 720 gf-cm)
4 in-oz. (4.6 Kgf-cm)
Features
Stop Strength
1 - 3 © 2006 CTS Corporation. All rights reserved. Information subject to change. 9/30/06
CTS Electronic Components www.ctscorp.com
• RoHS compliant
Type 115P, P.C. Mounted DIMENSION: mm
INCH
Type 115T, Twist Tab Mounted DIMENSION: mm
INCH
MOUNTING SURFACE
11.51
6.73
PIERCING
5.16
9.78
8.33
6.76
1.98X0.41
TERMINALS
18.24
16.51
9.78
6.73
SLOTS 1.57X4.72
END C.C.W
ROT.
ROT.
2 CROSS
19.84
END C.W
270° ROT.
SUGGESTED PANEL
10.29±0.05
9.4±0.05
20.57±0.05
.266 .328
.385
.453
.265 .203
1.6
.063
.810±.002
.405±.002
.050
MIN.
1.27
.050
1.27 MIN.
1.4
.055
2.79±0.05
.110±.002
.781
.062X.186
45°45°
.313
7.95
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
.718
.650
.385.265
.094
2.39
6.35
.078X.016
1.6
.063 OPTIONAL TERMINAL POSITION
PARALLEL TO MTG. SURFACE
1.52
.060
1.4
.055
.110±.002
2.79±0.05
.370±.002
1.6
.063
.250
40°
40°
PRINTED CIRCUIT BOARD
11.91
6.35 3.96
10.31
7.92
5.56
1.98X0.41
TERMINALS
18.26
15.88
10.31
5.56
SLOTS 1.57X4.72
END C.C.W
ROT.
ROT.
2 CROSS
23.01±0.38
END C.W
270° ROT.
9.4±0.05
.219 .312
.406
.469
.250 .156
1.6
.063
.062
1.57
.062
1.57
2.08
.082
4.17
.164
.906±.015 .062X.186
45°45°
.313
7.95
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
.719
.625
.406
.219
.156
3.96 6.35
.078X.016
1.6
.063 OPTIONAL TERMINAL POSITION
PARALLEL TO MTG. SURFACE
1.52
.060
1.4
.055
.110±.002
2.79±0.05
.370±.002
19.84
.781
7.92
.312
MOUNTING SURFACE
1.6
.063
10.41
.410
.250
10.41
.410
40°40°
2 - 3 © 2006 CTS Corporation. All rights reserved. Information subject to change. 9/30/06
CTS Electronic Components www.ctscorp.com
Type 116E,Snap-in Ear Mounted DIMENSION: mm
INCH
MOUNTING SURFACE
11.51
6.76 4.78
9.93
8.33
6.35
1.98X0.41
TERMINALS
18.26
16.28
9.936.35
SLOTS 1.57X4.72
END C.C.W
ROT.
ROT.
2 CROSS
21.59
END C.W
270° ROT.
10.11±0.05
9.4±0.05
20.22±0.05
.250 .328
.391
.453
.266 .188
1.6
.063
.796±.002
.398±.002
.062
MIN.
1.57
.062
1.57 MIN. 1.4
.055
2.79±0.05
.110±.002
.850
.062X.186
45°45°
.313
7.95
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
.719
.641
.391.250
.094
2.39
6.35
.078X.016
1.6
.063 OPTIONAL TERMINAL POSITION
PARALLEL TO MTG. SURFACE
1.52
.060
1.4
.055
.110±.002
2.79±0.05
.370±.002
1.6
.063
8.33
.328
PRINTED CIRCUIT BOARD
.250
SUGGESTED PANEL PIERCING
40°40°
Type 117R, Rivet Ear Mounted DIMENSION: mm
INCH
MTG. SURFACE
11.51
6.76
9.93
8.33
18.26
SLOTS 1.57X4.72
END C.C.W
ROT.
ROT.
2 CROSS
END C.W
270° ROT.
.328
.391
.453
.266
1.57
.062
.062X.186
45°45°
.312
7.92
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
.719
6.35
1.57
.062
19.84
.781
MOUNTING PANEL
1.57
.062
1
2
3
1.000
25.4
31.75
1.250
3.45±0.08 DIA.
.136±.003
2HOLES
9.93
.391
TERMINALS 1.98
.078
WIDE X 0.36
.014
OPTIONAL PC TERMINAL
POSITION PERPENDICULAR
TO MTG. SURFACE
.250
12.7±0.05
.500±.002
25.4±0.05
1.000±.002
R8.64
.340R.
40°40°
3.45±0.08 DIA.
.136±.003
2 HLS.
DIA. OF HLS. TO SUIT
TERMINAL CLEARANCE.
(IF TERMINALS PENETRATE
CHASSIS.)
RESIST
TOLERANCE
A– ±10%
B– ±20%
D– ± 5%
LOCATING
LUG
3– NONE
SHAFT
LENGTH
00 – NO SHAFT
SHAFT TRIM
C– CROSS
SLOT
SERIES MOUNTING
DESIGNATION
115 – PC MOUNT
OR TWIST TAB
116 – EAR
117 – RIVET EAR
TERMINAL STYLE
J– INSULATED
CONSTRUCTION
G– GROUNDED
CONSTRUCTION
Ordering Information
115 G P 3 00 C 103 B 1
TAPER
1– LINEAR
MOUNTING
STYLE
T– TWIST TAB
P– PC
E– EAR
R– RIVET EAR
RESISTANCE CODE
EXAMPLES
CODE RESISTANCE
5A0 5 OHMS
500 50
101 100
501 500
102 1K
252 2.5K
502 5K
103 10K
203 20K
3 - 3 © 2006 CTS Corporation. All rights reserved. Information subject to change. 9/30/06
CTS Electronic Components www.ctscorp.com
