CT-20 查看數據表（PDF） - Unspecified
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CT-20 Datasheet PDF : 4 Pages
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CT-20
CERMET TRIMMERS
■ LIST OF PART NUMBERS
Adjustment Shape of terminal
position
(Top view)
Form of packaging
Plastic bag
Pieces in
package
2
3
1
Side
2
adjustment
( ↑ Adjustment
direction)
3
1
CT-20EP
CT-20EX
50 pcs./pack
2
3
1
CT-20EPB
25 pcs./pack
■ ELECTRICAL CHARACTERISTICS
Nominal resistance range
10 Ω ~ 5 MΩ
Resistance tolerance
± 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
12 turns
End resistance
1 % or 2 Ω, whichever is greater
C.R.V.
1 % or 3 Ω, whichever is greater
Operating temp. range
Temp. coefficient
Insulation resistance
−55 ~ 120 °C
10 Ω, 20 Ω, 5 MΩ : ± 250 10-6/°C maximum
50 Ω ~ 2 MΩ : ± 100 10-6/°C maximum
1000 MΩ minimum (DC500 V)
Dielectric strength
Net weight
AC600 V, 60 s
Approx. 1.08 g (CT-20EP, EX)
Approx. 3.7 g (CT-20EPB)
<Nominal resistance values>
A 10 Ω A 20 Ω 50 Ω 100 Ω 200 Ω 500 Ω 1 kΩ
10 kΩ 20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ
2 kΩ 5 kΩ
2 MΩ 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.
The products indicated by A mark are manufactured upon receipt of
order basis.
■ MECHANICAL CHARACTERISTICS
Mechanical turn
15 turns
Operating torque
35 mN·m {357 gf·cm} maximum
Mechanical stop
Rotational life
Terminal strength
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）
Thrust to rotor
10 N {1.02 kgf} minimum
Solderability
245 ± 3 °C, 2 ~ 3 s
{ }：Reference only
■ ENVIRONMENTAL CHARACTERISTICS
Test item
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Test conditions
Specifications
− 65 ~ 125 °C (0.5 h), 5 cycles
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
981 m/s2, 6 ms
6 directions for 3 times each
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
70 °C, 0.5 W, 1000 h
−55 °C, 2 h
120 °C, 250 h
[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 %]
85 °C, 60 s
No leaks (No continuous bubbles)
Soldering heat
Flow
260 ± 3 °C, 5 ~ 6 s, two times maximum
Manual soldering
380 ± 10 °C, 3 ~ 4 s
[ΔR/R ≦ 1 %]
Δ R/R：Change in total resistance
S.S. ：Setting stability
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