CT-20
Vishay
Cermet Trimmers, 15 Turns
FEATURES
• General use type
• Wide resistance range from 10Ω to 5MΩ
DIMENSIONS in millimeters
Unless otherwise specified, tolerance: ± 0.3
Ø2.5, Slot 0.6 W x 0.8D
CT-20P
Side Adjustment
Resistance code & Production date code
1.5
5
1
3
19
CW rotation
7±2
6.4
4.8
2
3
3 – Ø 0.5±0.05
1.25
2
1
5.1
Solder– plated
3.3
2.5
12.7
Ø2.5, Slot 0.6 W x 0.8D
CT-20X
Side Adjustment
Resistance code & Production date code
1.5
19
3 – Ø0.5± 0.05
7±2
6.4
4.8
5
3
1.25
2.5
0.6
7
CT-20PB
2
1
7.6
Solder– plated
8.4
7
17.8
23
Nut M5, t = 3.2
Washer t = 0.8
12.7
6.1
5.1
2.5
5.4±2
2.25
6.4
8.9
Resistance code & Production date code
M5 (P = 0.8)
2.9±0.2
Slot 0.6 W x 1D
3 – 0.5±0.05
Solder-plated
3
2
1
ELECTRICAL SPECIFICATIONS
Nominal Resistance Range
Nominal Resistance Tolerance
Power Ratings
Resistance Law
Maximum Input Voltage
Maximum Wiper Current
Effective Electrical Turn
End Resistance
C.R.V.
Operating Temperature Range
Temperature Coefficient
Insulation Resistance
Dielectric Strength
Net Weight
Document Number: 58000
Revision: 11-Nov-05
10Ω ~ 5MΩ
± 10 %
0.5 W (70 °C) 0 W (120 °C)
Linear law (B)
DC300 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
12 turns
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
- 55 ~ + 120 °C
10 Ω, 20 Ω, 5 MΩ: ± 250 10-6/°C maximum
50 Ω ~ 2 MΩ: ± 100 10-6/°C maximum
1000 MΩ minimum (DC500 V)
AC600 V, 60 s
Approx. 1.08 g (CT-20P, X)
Approx. 3.7 g (CT-20PB)
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CT-20
Vishay
Cermet Trimmers, 15 Turns
MECHANICAL SPECIFICATIONS
Mechanical Turn
Operating Torque
15 turns
35 mN·m
{357 gf·cm}
maximum
Clutch action
200 cycles
10Ω ~ 200Ω
[∆R/R ≤ ±
(0.5 Ω + 3 %)]
500 Ω ~ 5 MΩ
[∆R/R ≤ ±
(0.5 Ω + 2 %)]
9 N {917 gf}
minimum
(Tensile strength)
10 N {1.02 kgf}
minimum
235 °C, 2 s
Mechanical Stop
Rotational Life
Terminal Strength
Thrust To Rotor
Solderability
STANDARD RESISTANCE TABLE
NOMINAL
RESISTANCE
VALUES (Ω)
RESISTANCE MAXIMUM INPUT MAXIMUM WIPER
CODE
VOLTAGE (V)
CURRENT (mA)
10*
20*
50
100
200
500
100
200
500
101
201
501
1.00
2.00
5.00
7.07
10.0
15.8
100
100
100
70.7
50.0
31.6
1k
2k
5k
10 k
20 k
50 k
102
202
502
103
203
503
22.4
31.6
50.0
70.7
100
158
22.4
15.8
10.0
7.07
5.00
3.16
100 k
200 k
500 k
1M
2M
5 M*
104
204
504
105
205
505
224
300
300
300
300
300
2.24
1.50
0.60
0.30
0.15
0.06
*Manufactured upon receipt of order basis.
ENVIRONMENTAL SPECIFICATIONS
Thermal Shock
Humidity
Shock
Vibration
Load Life
Low Temperature Operation
High Temperature Exposure
Immersion Seal
-65 ~ 125 °C
(0.5 h), 5 cycles
-10 ~ 65 °C (Relative humidity
80 ~ 98 %), 10 cycles, 240 h
981 m/s2, 6 ms
6 directions for 3 times each
Amplitude 1.52 mm or
Acceleration 196 m/s2,
10 ~ 2000Hz, 3 directions, 12
times each
70 °C, 0.5 W, 1000 h
-55 °C, 2 h
120 °C, 250 h
85 °C, 60 s
Soldering Heat
350 °C, 3 s
∆R/R: Change in total resistance
S.S.: Setting stability
10
9
4 5
6
8
1
[∆R/R ≤ 1 %]
[S.S. ≤ 1 %]
[∆R/R ≤ 1 %]
2
[∆R/R ≤ 1 %]
[S.S. ≤ 1 %]
3
7
CONSTRUCTION
[∆R/R ≤ 2 %]
[S.S. ≤ 1 %]
[∆R/R ≤ 1 %]
[S.S. ≤ 2 %]
[∆R/R ≤ 2 %]
[S.S. ≤ 2 %]
No leaks (No
continuous
bubbles)
[∆R/R ≤ 1 %]
PART NAME
1
Shaft
2
Housing
3
Terminal pin
4
Adhesive
5
Base element
6
Wiper
7
Resistive element
8
Slider block
9
Rubber cushion
10 Electrode
MATERIAL
FLAMMABILITY
Brass, Nickel-plated
-
Polybutyleneterephthalate
UL-94V-0
Copper, Solder-plated
-
Epoxy
UL-94V-0
Ceramic
-
Multi metal alloy
RuO2 cermet
Polybutyleneterephthalate
UL-94HB
Silicone rubber
-
Ag-Pd cermet
CFCs, Halon, Carbon tetrachloride and designated bromic flame
retardant PBBOs and PBBs are not used in our products.
PACKAGING SPECIFICATIONS
Vinyl bag packaging specifications
• Unit of bulk in vinyl bag packaging is 50 pcs. (CT-20PB is 25 pcs.) per pack.
• Boxing of bulk in vinyl bags is performed with 100 pcs. (CT-20PB is 50 pcs.) per box.
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Document Number: 58000
Revision: 11-Nov-05
CT-20
Vishay
Cermet Trimmers, 15 Turns
LIST OF PART NUMBERS
ADJUSTMENT
POSITION
FORM OF PACKAGING
SHAPE OF TERMINAL
(TOP VIEW)
PIECES IN
PACKAGE
VINYL BAG
2
CT-20P
1
3
50 pcs./pack
2
Side adjustment
(Adjustment direction)
CT-20X
1
3
2
CT-20PB
3
25 pcs./pack
1
NOMINAL RESISTANCE VALUES
10 Ω*
20 Ω*
50 Ω
100 Ω
200 Ω
500 Ω
1 kΩ
2 kΩ
5 kΩ
10 kΩ
20 kΩ
50 kΩ
100 kΩ
200 kΩ
500 kΩ
1 MΩ
2 MΩ
5 MΩ*
• The above part numbers are all available with the respective combination of <Nominal resistance values>.
• Verify the above part numbers when placing orders.
*Manufactured upon receipt of order basis.
ORDERING INFORMATION
CT20
SERIES
TERMINAL PIN
Blank: Sn-Pb
E: Sn (Lead-free)
P
PRODUCT SHAPE
204
RESISTANCE CODE
P: Side adjustment
X: Side adjustment
PB: Panel mount
This product is manufactured by Copal Electronics Co. Ltd. of Tokyo, Japan and is distributed by Vishay in North and South America only.
This product is not available from Vishay outside of North or South America.
Document Number: 58000
Revision: 11-Nov-05
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Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
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