18 TURNS CERMET TRIMMERS
RoHS compliant
CT-9
INTERNAL STRUCTURE
3
!0
2 1
9
4
5
6
8
7
Part name
■ FEATURES
ORoHS compliant
OGeneral use type
OFine setting is possible with 18 turns configuration
Material
Flammability
Polybutyleneterephthalate
UL94V-0
1
Housing
2
Base element
3
Wiper
4
Resistive element
RuO2 cermet
5
Electrode
Ag-Pd cermet
6
Adhesive
Epoxy
UL94V-0
7
Terminal pin
Copper, Tin-plated
—
8
Rotor gear
Polyamide
UL94HB
9
Rubber cushion
!0
Shaft
Ceramic
Multi metal alloy
—
Silicone rubber
—
Brass, Nickel-plated
■ PART NUMBER DESIGNATION
C T - 9 E W 1 M Ω ( 1 0 5 )
Series name
Resistance code
Terminal pin
Resistance value
E：Sn (Lead-free)
Product shape
W ：Top adjustment
X ：Side adjustment
P ：Side adjustment
※ Please refer to the LIST OF PART NUMBERS when placing orders.
CT-9
CERMET TRIMMERS
■ LIST OF PART NUMBERS
Adjustment
position
Shape of terminal
(Top view)
〈Nominal resistance values〉
Form of packaging
package
Plastic pack
1
1
Side adjustment
( ↑ Adjustment
direction)
100 Ω
200 Ω
500 Ω
1 kΩ
2 kΩ
50 kΩ
100 kΩ
200 kΩ
500 kΩ
1 MΩ
2 MΩ
20 kΩ
5 kΩ
※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.
CT-9EW
2
3
50 Ω
10 kΩ
Fig.1
Top adjustment
3
A10 Ω A 20 Ω
The products indicated by A mark are manufactured upon receipt of
order basis.
CT-9EX
50 pcs./pack
2
1
3
CT-9EP
2
■ MECHANICAL CHARACTERISTICS
■ ELECTRICAL CHARACTERISTICS
Nominal resistance range
Resistance tolerance
10 Ω ~ 2 MΩ
± 10 %
Power ratings
0.5 W (70 °C) 0 W (120 °C)
Resistance law
（B）Linear law
Maximum input voltage
DC300 V or power rating, whichever is smaller
Maximum wiper current
100 mA or power rating, whichever is smaller
Effective electrical turn
15 turns
Mechanical turn
18 turns
Operating torque
35 mN·m {357 gf·cm} maximum
Mechanical stop
Clutch action
200 cycles [ΔR/R ≦ ± (2 Ω + 3 %)]
Rotational life
Terminal strength
10 N {1.02 kgf} minimum
（Tensile strength）
Thrust to shaft
10 N {1.02 kgf} minimum
245 ± 3 °C, 2 ~ 3 s
Solderability
{ }：Reference only
■ ENVIRONMENTAL CHARACTERISTICS
End resistance
1 % or 2 Ω, whichever is greater
Test item
Test conditions
Specifications
C.R.V.
1 % or 3 Ω, whichever is greater
Thermal shock
− 65 ~ 125 °C (0.5 h),
5 cycles
[ΔR/R ≦ 1 %]
[S.S. ≦ 1 %]
Humidity
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[ΔR/R ≦ 2 %]
Operating temp. range
−55 ~ 120 °C
2
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
10 Ω, 20 Ω : ± 250 10-6/°C maximum
50 Ω ~ 2 MΩ : ± 100 10-6/°C maximum
1000 MΩ minimum (DC500 V)
AC900 V, 60 s
Approx. 0.94 g (CT-9EP)
Approx. 0.95 g (CT-9EX, EW)
Shock
981 m/s , 6 ms
6 directions for 3 times each
Vibration
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
Load life
70 °C, 0.5 W, 1000 h
Low temp. operation
− 55 °C, 2 h
High temp. exposure
120 °C, 250 h
Immersion seal
85 °C, 60 s
[ΔR/R ≦ 1 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 3 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 2 %]
[S.S. ≦ 2 %]
[ΔR/R ≦ 3 %]
[S.S. ≦ 2 %]
No leaks (No continuous bubbles)
Flow
± 3 °C, 5 ~ 6 s, two times maximum
Soldering heat 260
Manual soldering
[ΔR/R ≦ 1 %]
380 ± 10 °C, 3 ~ 4 s
Δ R/R：Change in total resistance
S.S. ：Setting stability
CT-9
CERMET TRIMMERS
■ MAXIMUM INPUT RATINGS
Resistance code
Maximum input voltage (V)
Maximum wiper 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
104
204
504
105
205
224
300
300
300
300
2.24
1.50
0.60
0.30
0.15
Nominal resistance values (Ω)
A
A
The products indicated by A mark are manufactured upon receipt of order basis.
■ OUTLINE DIMENSIONS
OCT-9EW
Top adjustment
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
φ 2.3, Slot 0.6 W × 0.8 D
3 – φ 0.50.05
1
3
2
3
CW rotation
1.1
1.5
5.5
9.6
5 min.
Resistance code, Production date code and
Lead-free Identification mark
+0.4
–0.1
4.8
1.4
9.6
2.5 2.5
2
2.7
1
OCT-9EX
Side adjustment
1.4
φ 2.3, Slot 0.6 W × 0.8 D
3 – φ 0.50.05
2
3
2.5 2.5
9.6
Lead-free Identification mark
5.5 +0.4
–0.1
9.6
5 min.
2.7
1
4.8
Resistance code &
Production date code
1.1
1.5
CT-9
CERMET TRIMMERS
■ OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
OCT-9EP
Side ajustment
φ 2.3, Slot 0.6 W × 0.8 D
1
3 – φ 0.50.05
2
3
CW rotation
3
2.5
1.5
9.6
5.5 +0.4
–0.1
72
1.1
Resistance code, Production date code and Lead-free Identification mark
■ PACKAGING SPECIFICATIONS
<Bulk pack specifications>
OUnit of bulk in a plastic bag is 50 pcs. per pack.
O Boxing of bulk in a plastic bag is performed with 100
pcs. per box.
4.8
1
4.8
1.4
9.6
2.5 2.5
2