Series 115
®
Commercial 3/4"
(19mm) Diameter,
2 watt Wirewound
Variable Resistor
Features
• 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
• RoHS compliant
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
Type 117 R
Rivet ear mounted:
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)
Stop Strength
4 in-oz. (4.6 Kgf-cm)
1-3
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
9/30/06
www.ctscorp.com
Type 115P,
P.C. Mounted
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
45°
END C.W
ROT.
45°
END C.C.W
ROT.
TERMINALS
1.98X0.41
.078X.016
1.6
.063
OPTIONAL TERMINAL POSITION
PARALLEL TO MTG. SURFACE
20.57±0.05
.810±.002
SUGGESTED PANEL
PIERCING
10.29±0.05
.405±.002
1.27 MIN.
.050
1.27 MIN.
.050
1.4
.055
2.39
.094
DIMENSION:
mm
INCH
7.95
.313
2.79±0.05
.110±.002
6.35
.250
9.4±0.05
.370±.002
1.52
.060
40°
40°
1.4
.055
2.79±0.05
.110±.002
270° ROT.
19.84
.781
2 CROSS
SLOTS 1.57X4.72
.062X.186
6.73
.265
9.78
.385
16.51
.650
18.24
.718
1.6
.063
1.6
.063
6.73
.265
5.16
.203
6.76
.266
9.78
.385
8.33
.328
11.51
.453
MOUNTING SURFACE
Type 115T,
Twist Tab Mounted
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
DIMENSION:
mm
INCH
45°
END C.W
ROT.
45°
END C.C.W
ROT.
TERMINALS
1.98X0.41
.078X.016
1.6
.063
OPTIONAL TERMINAL POSITION
PARALLEL TO MTG. SURFACE
1.57
.062
10.41
.410
10.41
.410
1.57
.062
2.08
.082
4.17
.164
9.4±0.05
.370±.002
1.52
.060
40°
40°
1.4
.055
2.79±0.05
.110±.002
7.95
.313
3.96
.156
270° ROT.
6.35
.250
19.84
.781
23.01±0.38
.906±.015
2 CROSS
SLOTS 1.57X4.72
.062X.186
5.56
.219
7.92
.312
10.31
.406
1.6
.063
1.6
.063
6.35
.250
7.92
.312
MOUNTING SURFACE
15.88
.625
18.26
.719
3.96
.156
5.56
.219
10.31
.406
11.91
.469
PRINTED CIRCUIT BOARD
Type 116E,Snap-in
Ear Mounted
CENTER TERMINAL SUPPLIED WITH INSULATED CONTACT ARM CONSTRUCTION.
OMITTED ON GROUNDED CONTACT ARM CONSTRUCTION.
20.22±0.05
.796±.002
END C.C.W
ROT.
TERMINALS
1.98X0.41
.078X.016
1.6
.063
OPTIONAL TERMINAL POSITION
PARALLEL TO MTG. SURFACE
1.57
.062
MIN.
10.11±0.05
.398±.002
1.57
.062
MIN.
1.4
.055
2.79±0.05
.110±.002
45°
END C.W
ROT.
45°
DIMENSION:
mm
INCH
7.95
.313
2.39
.094
6.35
.250
9.4±0.05
.370±.002
1.52
.060
40°
40°
1.4
.055
2.79±0.05
.110±.002
270° ROT.
21.59
.850
2 CROSS
SLOTS 1.57X4.72
.062X.186
6.35
.250
8.33
.328
9.93
.391
1.6
.063
SUGGESTED PANEL PIERCING
1.6
.063
6.76
.266
4.78
.188
8.33
.328
MOUNTING SURFACE
11.51
.453
9.93
.391
PRINTED CIRCUIT BOARD
16.28
.641
18.26
.719
6.35
.250
2- 3
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
9/30/06
www.ctscorp.com
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