CT-20

CERMET TRIMMERS

Mechanical turn

Operating torque

Mechanical stop

Rotational life

Thrust to rotor

Solderability

Terminal strength

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

2

3

1

2

3

1

2

3

1

Adjustment

position

Side

adjustment

(

↑ Adjustment

direction)

Pieces in

package

Form of packaging

Plastic bag

Shape of terminal

(Top view)

※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.

CT-20EP

CT-20EX

CT-20EPB

50 pcs./pack

25 pcs./pack

<Nominal resistance values>

A 10 Ω A 20 Ω

50

Ω

100

Ω

200

Ω

500

Ω

1 k

Ω

2 k

Ω

5 k

Ω

10 k

Ω

20 k

Ω

50 k

Ω

100 k

Ω

200 k

Ω

500 k

Ω

1 M

Ω

2 M

Ω

A 5 MΩ

Δ R/R：Change in total resistance

S.S.

：Setting stability

10

Ω ~ 5 MΩ

± 10 %

0.5 W (70 °C) 0 W (120 °C)

DC300 V or power rating, whichever is smaller

100 mA or power rating, whichever is smaller

12 turns

1 % or 2

Ω, whichever is greater

1 % or 3

Ω, whichever is greater

−55 ~ 120 °C

10

50

1000 M

Ω minimum (DC500 V)

AC600 V, 60 s

Approx. 1.08 g (CT-20EP, EX)

Approx. 3.7 g (CT-20EPB)

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 %)]

10 N {1.02 kgf} minimum

245

± 3 °C, 2 ~ 3 s

9 N {917 gf} minimum

Fig. 1

Flow

260

± 3 °C, 5 ~ 6 s, two times maximum

Manual soldering

380

± 10 °C, 3 ~ 4 s

Test item

Test conditions

Specifications

Thermal shock

Humidity

Shock

Vibration

Load life

Low temp. operation

High temp. exposure

Immersion seal

Soldering heat

−65 ~ 125 °C (0.5 h), 5 cycles

[

ΔR/R ≦ 1 %]

[S.S.

≦ 1 %]

−10 ~ 65 °C (80 ~ 98 %),

10 cycles, 240 h

[

ΔR/R ≦ 1 %]

981 m/s

6 directions for 3 times each

[

ΔR/R ≦ 1 %]

[S.S.

≦ 1 %]

(Amplitude) 1.52 mm or

(Acceleration) 196 m/s

10 ~ 2000 Hz, 3 directions, 12 times each

70 °C, 0.5 W, 1000 h

[

ΔR/R ≦ 2 %]

[S.S.

≦ 1 %]

−55 °C, 2 h

[

ΔR/R ≦ 1 %]

[S.S.

≦ 2 %]

120 °C, 250 h

[

ΔR/R ≦ 2 %]

[S.S.

≦ 2 %]

85 °C, 60 s

No leaks (No continuous bubbles)

[

ΔR/R ≦ 1 %]