18 TURNS CERMET TRIMMERS
CT-94
INTERNAL STRUCTURE
2 1
3
4
5
6
7
8
!0
9
RoHS compliant
Part name
Material
Polybutyleneterephthalate
Ceramic
Multi metal alloy
Flammability
UL94V-0
■
FEATURES
O
RoHS compliant
O
Thin body design (4.8 mm thick)
O
18 turns, sealed, precision type
1
2
3
4
5
6
7
8
9
!0
Housing
Base element
Wiper
Resistive element
Electrode
Adhesive
Terminal pin
Rotor gear
Rubber cushion
Shaft
—
RuO
2
cermet
Ag-Pd cermet
Epoxy
Copper, Tin-plated
Polyamide
Silicone rubber
—
Brass, Nickel-plated
UL94V-0
—
UL94HB
■
PART NUMBER DESIGNATION
C T - 9 4 E W 1 k
Ω
( 1 0 2 )
Series name
Terminal pin
E：Sn (Lead-free)
Resistance code
Resistance value
Product shape
W, Y
：
Top adjustment
X, P, Z
：
Side adjustment
※
Please refer to the LIST OF PART NUMBERS when placing orders.
CT-94
CERMET TRIMMERS
■
LIST OF PART NUMBERS
Adjustment
position
Top adjustment
Shape of terminal
(Top view)
Form of packaging
Plastic bag
Pieces in
package
〈
Nominal resistance values
〉
A
10
Ω
A
20
Ω
10 kΩ
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
200 kΩ
A
250 kΩ 500 kΩ
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.
3
2
2
1
CT-94EW
CT-94EY
3
1
The products indicated by
A
mark are manufactured upon receipt of
order basis.
3
2
1
CT-94EX
50 pcs./pack
Side adjustment
(
↑
Adjustment
direction)
3
1
2
3
CP-94EP
■
MECHANICAL CHARACTERISTICS
Mechanical turn
18 turns
35 mN·m {357 gf·cm} maximum
Clutch action
200 cycles [ΔR/R
≦
±
(2
Ω +
3 %)]
10 N {1.02 kgf} minimum
（
Tensile strength
）
10 N {1.02 kgf} minimum
245
±
3 °C, 2 ~ 3 s
1
2
CT-94EZ
Operating torque
Mechanical stop
■
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
~ 2 MΩ
±
10 %
0.5 W (70 °C) 0 W (125 °C)
（B）
Linear law
Rotational life
Terminal strength
Thrust to shaft
Solderability
{ }
：
Reference only
■
ENVIRONMENTAL CHARACTERISTICS
Test item
Thermal shock
Humidity
Shock
Test conditions
−65
~ 125 °C (0.5 h),
5 cycles
−10
~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
DC300 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
15 turns
1 % or 2
Ω,
whichever is greater
1 % or 3
Ω,
whichever is greater
−
55 ~ 125 °C
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. 0.88 g (CT-94EP)
Approx. 0.92 g (CT-94EW, EX, EY, EZ)
Specifications
[ΔR/R
≦
1 %]
[S.S.
≦
1 %]
[ΔR/R
≦
2 %]
[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)
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
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
70 °C, 0.5 W, 1000 h
−55
°C, 2 h
125 °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
Soldering heat
[ΔR/R
≦
1 %]
Δ
R/R：Change in total resistance
S.S.
：Setting
stability
CT-94
CERMET TRIMMERS
■
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
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
Maximum wiper current (mA)
A
A
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
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
A
A
The products indicated by
A
mark are manufactured upon receipt of order basis.
■
OUTLINE DIMENSIONS
O
CT-94EW
Top adjustment
4.8
φ
2.3, Slot 0.6 W
×
0.8 D
Unless otherwise specified, tolerance:
±
0.3 (Unit: mm)
1
2
3
CW rotation
9.6
5 min.
3
2.5
2.3
2.3
2.5
2.5
2.5
1.4
9.6
2
1
1.3
1.1
3 –
φ
0.5 0.05
Resistace/Date code and Lead-free Identification mark
O
CT-94EX
Side adjustment
1.3
1.4
φ
2.3, Slot 0.6 W
×
0.8 D
3 –
φ
0.5 0.05
3
9.6
1.1
2
1
4.8
9.6
5 min.
Resistace/Date code and Lead-free Identification mark
CT-94
CERMET TRIMMERS
■
OUTLINE DIMENSIONS
O
CT-94EP
Side adjustment
φ
2.3, Slot 0.6 W
×
0.8 D
Unless otherwise specified, tolerance:
±
0.3 (Unit: mm)
1
2.5
3
2
3
CW rotation
3 –
φ
0.5 0.05
9.6
2
1.4
1.3
9.6
4.8
7 2
1.1
2.5
1
Resistace/Date code and Lead-free Identification mark
O
CT-94EY
Top adjustment
4.8
φ
2.3, Slot 0.6 W
×
0.8 D
3 –
φ
0.5 0.05
2.5
2.5
2.5
2.5
2.5
2.5
3
2
9.6
1.4
9.6
1
1.3
1.1
7 2
1.1
Resistace/Date code and Lead-free Identification mark
O
CT-94EZ
Side adjustment
1.3
1.4
φ
2.3, Slot 0.6 W
×
0.8 D
3 –
φ
0.5 0.05
3
2
1
Lead-free Identification mark
4.8
9.6
Resistace/
Date code
1.1
9.6
7 2
1.1
■
PACKAGING SPECIFICATIONS
<Bulk pack specifications>
O
Unit 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.
2.5
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