15 TURNS CERMET TRIMMERS
CT-20
INTERNAL STRUCTURE
1
!0
9
8
2
RoHS compliant
3
Part name
45
6
Material
7
Flammability
—
UL94V-0
—
UL94V-0
■
FEATURES
O
RoHS compliant
O
General use type
O
Wide resistance range from 10 Ω to 5
MΩ
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
Brass, Nickel-plated
Polybutyleneterephthalate
Copper, Tin-plated
Epoxy
Ceramic
Multi metal alloy
RuO
2
cermet
Polybutyleneterephthalate
Silicone rubber
—
UL94HB
—
Ag-Pd cermet
■
PART NUMBER DESIGNATION
C T - 2 0 E P 2 0 0 k
Ω
( 2 0 4 )
Series name
Terminal pin
E：Sn (Lead-free)
Resistance code
Resistance value
Product shape
P
：
Side adjustment
X
：
Side adjustment
PB
：
Panel mount
※
Please refer to the LIST OF PART NUMBERS when placing orders.
CT-20
CERMET TRIMMERS
■
LIST OF PART NUMBERS
Adjustment
position
Shape of terminal
(Top view)
Form of packaging
Plastic bag
Pieces in
package
<Nominal resistance values>
A
10
Ω
10 kΩ
A
20
Ω
20 kΩ
50
Ω
50 kΩ
100
Ω
100 kΩ
200
Ω
200 kΩ
500
Ω
500 kΩ
1 kΩ
1 MΩ
2 kΩ
2 MΩ
5 kΩ
A
5 MΩ
Fig. 1
※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.
50 pcs./pack
2
CT-20EP
3
1
The products indicated by
A
mark are manufactured upon receipt of
order basis.
Side
adjustment
(
↑
Adjustment
direction)
2
CT-20EX
3
1
2
CT-20EPB
3
1
25 pcs./pack
■
MECHANICAL CHARACTERISTICS
Mechanical turn
15 turns
35 mN·m {357 gf·cm} maximum
Clutch action
200 cycles
10
Ω
~ 200
Ω
[ΔR/R
≦
±
(0.5
Ω +3
%)]
500
Ω
~ 5 MΩ [ΔR/R
≦
±
(0.5
Ω +2
%)]
9 N {917 gf} minimum
（
Tensile strength
）
10 N {1.02 kgf} minimum
245
±
3 °C, 2 ~ 3 s
■
ELECTRICAL CHARACTERISTICS
Nominal resistance range
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 (120 °C)
（B）
Linear law
Operating torque
Mechanical stop
Rotational life
Terminal strength
Thrust to rotor
Solderability
DC300 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
{ }
：
Reference only
■
ENVIRONMENTAL CHARACTERISTICS
12 turns
Test item
Test conditions
−
65 ~ 125 °C (0.5 h), 5 cycles
−10
~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
981 m/s
2
, 6 ms
6 directions for 3 times each
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s
2
,
10 ~ 2000 Hz, 3 directions, 12 times each
Specifications
[ΔR/R
≦
1 %]
[S.S.
≦
1 %]
[ΔR/R
≦
1 %]
[ΔR/R
≦
1 %]
[S.S.
≦
1 %]
[ΔR/R
≦
2 %]
[S.S.
≦
1 %]
[ΔR/R
≦
1 %]
[S.S.
≦
2 %]
[ΔR/R
≦
2 %]
[S.S.
≦
2 %]
No leaks (No continuous bubbles)
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
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
1000 MΩ minimum (DC500 V)
AC600 V, 60 s
Approx. 1.08 g (CT-20EP, EX)
Approx. 3.7 g (CT-20EPB)
70 °C, 0.5 W, 1000 h
−55
°C, 2 h
120 °C, 250 h
85 °C, 60 s
Flow
260
±
3 °C, 5 ~ 6 s, two times maximum
Manual soldering
380
±
10 °C, 3 ~ 4 s
High temp. exposure
Immersion seal
Soldering heat
[ΔR/R
≦
1 %]
Δ
R/R：Change in total resistance
S.S.
：Setting
stability
CT-20
CERMET TRIMMERS
■
MAXIMUM INPUT RATINGS
Nominal resistance values (Ω)
Resistance code
100
200
500
101
201
501
102
202
502
103
203
503
104
204
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
158
224
300
300
300
300
300
Maximum wiper current (mA)
A
A
10
20
50
100
200
500
1k
2k
5k
10 k
20 k
50 k
100 k
200 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
3.16
2.24
1.50
0.60
0.30
0.15
0.06
A
The products indi-
cated by
A
mark are
manufactured upon
receipt of order
basis.
■
OUTLINE DIMENSIONS
O
CT-20EP
Side adjustment
5
φ
2.5, Slot 0.6 W
×
0.8 D
Unless otherwise specified, tolerance:
±
0.3 (Unit: mm)
1
Resistance code, Production date code &
Lead-free Identification mark
3
CW rotation
1.5
19
2
72
6.4
4.8
3 –
φ
0.50.05
1.25
2.5
3
5.1
3.3
12.7
2
1
O
CT-20EX
Side adjustment
5
φ
2.5, Slot 0.6 W
×
0.8 D
Resistance code, Production date code &
Lead-free Identification mark
1.5
19
72
6.4
4.8
3 –
φ
0.50.05
1.25
2.5
3
7.6
0.6
17.8
2
1
CT-20
CERMET TRIMMERS
■
OUTLINE DIMENSIONS
O
CT-20EPB
Unless otherwise specified, tolerance:
±
0.3 (Unit: mm)
1
3
CW rotation
7
Washer t = 0.8
Nut M5, t = 3.2
8.4
7
23
Resistance code, Production date code &
Lead-free Identification mark
2
6.1
5.1
12.7
8.9
6.4
φ
2.90.2
Slot 0.6 W
×
1 D
3 –
φ
0.50.05
3
2
1
■
PACKAGING SPECIFICATIONS
<Bulk pack specifications>
O
Unit of bulk in a plastic bag is 50 pcs. (CT-20EPB is 25
pcs.) per pack.
O
Boxing of bulk in a plastic bag is performed with 100
pcs. (CT-20EPB is 50 pcs.) per box.
5.42
M5 (P = 0.8)
2.25
2.5
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