COPAL
ELECTRONICS
15 TURNS
CERMET TRIMMERS
CT-20
INTERNAL STRUCTURE
10
1
9
8
2
7
CERMET
TRIMMERS
3
4
5
6
s
FEATURES
q
General use type
q
Wide resistance range from 10
Ω
to 5
MΩ
Part name
Material
Brass, Nickel-plated
PBT
(Polybutyleneterephthalate)
Copper, Solder-plated
Epoxy
Ceramic
Multi metal alloy
RuO
2
cermet
PBT
(Polybutyleneterephthalate)
Silicone rubber
Flammability
—
UL-94V-0
—
UL-94V-0
1
2
3
4
5
6
7
8
9
!0
Shaft
Housing
Terminal pin
Adhesive
Base element
Wiper
Resistive element
Slider block
Rubber cushion
Electrode
—
UL-94HB
—
Ag-Pd cermet
CFCs, Halon, Carbon tetrachloride and designated bromic flame
retardant PBBOs and PBBs are not used in our products.
s
PART NUMBER DESIGNATION
C T - 2 0 P 2 0 0 k
Ω
( 2 0 4 )
Series name
Resistance code
Product shape
P
:
Side adjustment
X
:
Side adjustment
Resistance value
❈
Please refer to the LIST OF PART NUMBERS when placing orders.
s
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELECTRONICS
CERMET TRIMMERS
CT-20
s
LIST OF PART NUMBERS
Adjustment
position
Shape of terminal
(Top view)
Form of packaging
Bulk packaging
<Nominal resistance values>
Pieces in
package
A
10
Ω
10 kΩ
A
20
Ω
20 kΩ
A
25 kΩ
50
Ω
50 kΩ
100
Ω
100 kΩ
200
Ω
500
Ω
1 kΩ
1 MΩ
2 kΩ
2 MΩ
5 kΩ
A
5 MΩ
200 kΩ
A
250 kΩ 500 kΩ
2
Fig. 1
CT-20P
1
Side adjustment
(
↑
Adjustment
direction)
3
50 pcs./pack
2
❈
The above part numbers are all available with the respective combination of
<Nominal resistance values> (Fig. 1).
❈
Verify the above part numbers when placing orders.
3
1
s
ELECTRICAL CHARACTERISTICS
Nominal resistance range
Total resistance tolerance
Power ratings
Resistance law
Maximum input voltage
Maximum wiper current
Effective electrical turn
End resistance
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
10
Ω
~ 5 MΩ
±
10 %
0.5 W (70 °C) 0 W (125 °C)
Linear law
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
~ +125 °C
10
Ω
, 20
Ω
, 5 M
Ω
±
250 ppm/°C maximum
50
Ω
~ 2 M
Ω
±
100 ppm/°C maximum
s
MECHANICAL CHARACTERISTICS
Mechanical turn
Operating torque
Mechanical stop
Rotational life
Terminal strength
Thrust to rotor
Solderability
15 turns
35 mN·m {357 gf·cm} maximum
Clutch action
200 cycles
_
10
Ω
~ 200
Ω
[
∆
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
{ } : Reference only
s
ENVIRONMENTAL CHARACTERISTICS
Test item
Thermal shock
Humidity
Shock
Test conditions
−65
~ +125 °C
(0.5 h), 5 cycles
−10
~ +65 °C (80 ~ 98 %RH),
10 cycles, 240 h
981 m/s
2
, 6 ms
6 directions for 3 times each
Amplitude of 1.52 mm or Acceleration
of 196 m/s
2
, 10~2000 Hz, 3 directions,
12 times each
70 °C, 0.5 W, 1000 h
−55
°C, 2 h
125 °C, 250 h
85 °C, 60 s
350 °C, 3 s
Specifications
_
[
∆
R/R
≤
1 %]
_
[S.S.
≤
1 %]
_
[
∆
R/R
≤
1 %]
_
[
∆
R/R
≤
1 %]
_
[S.S.
≤
1 %]
_
[
∆
R/R
≤
2 %]
≤
1 %]
_
[S.S.
_
[
∆
R/R
≤
1 %]
_
[S.S.
≤
2 %]
_
[
∆
R/R
≤
2 %]
_
[S.S.
≤
2 %]
No leaks
(No continuous bubbles)
1000 MΩ minimum (DC500 V)
AC600 V, 60 s
Vibration
Approx. 1.08 g
Load life
Low temp. operation
High temp. exposure
Immersion seal
Soldering heat
_
[
∆
R/R
≤
1 %]
∆
R/R : Change in total resistance
S.S. : Setting stability
s
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
CERMET
TRIMMERS
CT-20X
A
: Semi-standard
COPAL
ELECTRONICS
CT-20
CERMET TRIMMERS
s
MAXIMUM INPUT RATINGS
Nominal resistance values (Ω)
Resistance code
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
205
505
Maximum input voltage (V)
1.00
2.00
5.00
7.07
10.0
15.8
22.4
31.6
50.0
70.7
100
112
158
224
300
300
300
300
300
300
Maximum wiper current (mA)
10
20
50
100
200
500
1k
2k
5k
10 k
20 k
25 k
50 k
100 k
200 k
250 k
500 k
1M
2M
5M
100
100
100
70.7
50.0
31.6
22.4
15.8
10.0
7.07
5.00
4.48
3.16
2.24
1.50
1.20
0.60
0.30
0.15
0.06
CERMET
TRIMMERS
A
: Semi-standard
s
OUTLINE DIMENSIONS
q
CT-20P
Unless otherwise specified, tolerance:
±
0.3
(Unit: mm)
Side adjustment
5
φ
2.5, Slot 0.6 W
×
0.8 D
Resistance code &
Production date code
1
2
1.5
19
3
CW rotation
3 –
φ
0.5±0.05
Solder – plated
7±2
6.4
4.8
3
5.1
3.3
12.7
2
1
1.25
2.5
q
CT-20X
Side adjustment
5
φ
2.5, Slot 0.6 W
×
0.8 D
Resistance code &
Production date code
1.5
19
3 –
φ
0.5±0.05
Solder – plated
7±2
6.4
4.8
3
7.6
0.6
17.8
2
1
1.25
2.5
s
PACKAGING SPECIFICATIONS
<Bulk packaging specifications>
q
Unit of bulk in vinyl bag packaging is 50 pcs. per pack.
q
Boxing of bulk in vinyl bags is performed with 100 pcs.
per box.
s
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
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