15 TURNS CERMET TRIMMERS
CT-20 構造図
RoHS compliant
CT-20
INTERNAL STRUCTURE
⑩
⑨
④⑤
⑥
①
⑧
②
③
Part name
■ FEATURES
●
●
●
●
RoHS compliant
General use type
Wide resistance range from 10 Ω to 5 MΩ
Resin material is UL Recognized 94V-0
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
⑦
Material
Brass, Nickel-plated
Polybutyleneterephthalate
Copper, Tin-plated
Epoxy
Ceramic
Multi metal alloy
RuO2 cermet
Polybutyleneterephthalate
Silicone rubber
Ag-Pd cermet
■ PART NUMBER DESIGNATION
C T - 2 0 E P 2 0 0 kΩ ( 2 0 4 )
Series name
Terminal pin
E:Sn (Lead-free)
Product shape
P :Side adjustment
X :Side adjustment
PB :Panel mount
※ Please refer to the LIST OF PART NUMBERS when placing orders.
Resistance code
Resistance value
CT-20
CERMET TRIMMERS
■ LIST OF PART NUMBERS
Adjustment Shape of terminal
position
(Top view)
Form of packaging
Plastic bag
Pieces in
package
→ 10 Ω → 20 Ω 50 Ω 100 Ω 200 Ω 500 Ω
1 kΩ
2 kΩ
5 kΩ
10 kΩ
1 MΩ
2 MΩ
→ 5 MΩ
20 kΩ
50 kΩ
100 kΩ 200 kΩ 500 kΩ
Fig. 1
2
※ The above part numbers are all available with the respective
combination of (Fig. 1).
※ Verify the above part numbers when placing orders.
CT-20EP
1
3
50 pcs./pack
Side
adjustment
(↑Adjustment
direction)
2
CT-20EX
The products indicated by → mark are manufactured upon
receipt of order basis.
1
3
2
CT-20EPB
25 pcs./pack
1
3
■ MECHANICAL CHARACTERISTICS
2
■ ELECTRICAL CHARACTERISTICS
3
Nominal resistance range
Resistance tolerance
1
10 Ω ~ 5 MΩ
± 10 %
Power ratings
0.5 W (70 °C) 0 W (120 °C)
Resistance law
Linear law
Maximum input voltage DC300 V or power rating, whichever is smaller
Mechanical turn
15 turns
Operating torque
35 mN·m {357 gf·cm} maximum
Mechanical stop
Clutch action
200 cycles
10 Ω ~ 200 Ω [ΔR/R ≦ ± (0.5 Ω +3 %)]
500 Ω ~ 5 MΩ [ΔR/R ≦ ± (0.5 Ω +2 %)]
Rotational life
Terminal strength
Thrust to rotor
9 N {917 gf} minimum
(Tensile strength)
10 N {1.02 kgf} minimum
Solderability
245 ± 3 °C, 2 ~ 3 s
{ }:Reference only
Maximum wiper current 100 mA or power rating, whichever is smaller
Effective electrical turn
End resistance
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
12 turns
1 % or 2 Ω , whichever is greater
1 % or 3 Ω , whichever is greater
−55 ~ 120 °C
■ ENVIRONMENTAL CHARACTERISTICS
Test item
Test conditions
−65 ~ 125 °C (0.5 h),
Thermal shock
5 cycles
−10 ~ 65 °C (80 ~ 98 %),
Humidity
10 cycles, 240 h
981 m/s2, 6 ms
Shock
6 directions for 3 times each
10 Ω , 20 Ω , 5 MΩ : ± 250 10-6/°C maximum
50 Ω ~ 2 MΩ : ± 100 10-6/°C maximum
Vibration
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
1000 MΩ minimum (DC500 V)
Load life
70 °C, 0.5 W, 1000 h
AC600 V, 60 s
Low temp. operation
−55 °C, 2 h
Approx. 1.08 g (CT-20EP, EX)
Approx. 3.7 g (CT-20EPB)
High temp. exposure
120 °C, 250 h
Immersion seal
Soldering heat
85 °C, 60 s
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)
Flow
260 ± 3 °C, 5 ~ 6 s, two times
maximum
Manual soldering
380 ± 10 °C, 3 ~ 4 s
[ΔR/R ≦ 1 %]
ΔR/R:Change in total resistance
S.S. :Setting stability
CT-20
CERMET TRIMMERS
■ MAXIMUM INPUT RATINGS
Nominal resistance values ( Ω )
Resistance code
→
10
→
20
50
100
200
500
Maximum input voltage (V)
Maximum wiper current (mA)
100 1.00 100
200 2.00 100
500 5.00 100
101
7.07
70.7
201
10.0
50.0
501
15.8
31.6
1 k
102
22.4
22.4
2 k
202
31.6
15.8
5 k
502
50.0
10.0
10 k
103
70.7
7.07
20 k
203
100
5.00
50 k 503 158 3.16
→
100 k
200 k
500 k
1 M
2 M
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
■ OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
● CT-20EP
Side adjustment
Resistance code, Production date code &
Lead-free Identification mark
Φ 2.5, Slot 0.6 W × 0.8 D
7±2
6.4
4.8
1.25
3
● CT-20EX
Side adjustment
2
1
5.1
3.3
2.5
12.7
Resistance code, Production date code &
Lead-free Identification mark
Φ 2.5, Slot 0.6 W × 0.8 D
19
1.5
3 –Φ 0.5±0.05
1.25
2.5
7±2
6.4
4.8
5
3
2
7.6
0.6
①
③
CW rotation
②
19
1.5
5
3 –Φ 0.5±0.05
The products indicated by → mark are
manufactured upon
receipt of order
basis.
17.8
1
CT-20
CERMET TRIMMERS
■ OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
● CT-20EPB
①
③
CW rotation
7
8.4
7
23
②
Resistance code, Production date code &
Lead-free Identification mark
12.7
6.1
2.5
5.1
M5 (P = 0.8)
Φ 2.9±0.2
Slot 0.6 W × 1 D
3 –Φ 0.5±0.05
3
2
1
5.4±2
2.25
6.4
8.9
Washer t = 0.8
Nut M5, t = 3.2
■PACKAGING SPECIFICATIONS
● Unit of bulk in a plastic bag is 50 pcs. (CT-20EPB is 25 pcs.) per pack.
● Boxing of bulk in a plastic bag is performed with 100 pcs. (CT-20EPB is 50 pcs.) per box.
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