Trimmer potentiometer CT-20
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CT-20
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CT-20
15 turns Cermet Trimmers
FeaturesFeatures
- General use type
- Wide resistance range from 10 Ω to 5 MΩ
- In this series, material data sheets ideal for REACH-SVHC
surveys etc. can be downloaded in chemSHERPA-AI format. - Download chemSHERPA-AI from the list of P/N below
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 | Linear law(B) |
| Maximum input voltage | 300 VDC 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 | - 55 ~ 120 °C |
| Temp. coefficient | 10 Ω, 20 Ω, 5 MΩ: ± 250 10-6 / °C maximum 50 Ω ~ 2 MΩ: ± 100 10-6 / °C maximum |
| Insulation resistance | 1000 MΩ minimum (500 VDC) |
| Dielectric strength | 600 VAC, 60 s |
| Net weight | Approx. 1.08 g (CT-20EP, EX) Approx. 3.7 g (CT-20EPB) |
Mechanical Characteristics
| Mechanical turn | 15 turns |
|---|---|
| Operating torque | 35 mN·m {357 gf·cm} maximum |
| Mechanical stop | Clutch action |
| Rotational life | 200 cycles 10 Ω ~ 200 Ω [ΔR/R ≦ ± (0.5 Ω +3 %)] 500 Ω ~ 5 MΩ [ΔR/R ≦ ± (0.5 Ω +2 %)] |
| Terminal strength | 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 | Test conditions | Specifications |
|---|---|---|
| Shock | 981 m/s2, 6 ms 6 directions for 3 times each | [ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
| Thermal shock | - 65 ~ 125 °C (0.5 h), 5 cycles | [ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
| Humidity | - 10 ~ 65 °C (Relative humidity 80 ~ 98 %), 10 cycles, 240 h | [ΔR/R ≦ 1 %] |
| Vibration | Amplitude 1.52 mm or Acceleration 196 m/s2, 10 ~ 2000 Hz, 3 directions, 12 times each |
[ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
| Load life | 70 °C, 0.5 W, 1000 h | [ΔR/R ≦ 2 %] [S.S. ≦ 1 %] |
| Low temp. operation | - 55 °C, 2 h | [ΔR/R ≦ 1 %] [S.S. ≦ 2 %] |
| High temp. exposure | 120 °C, 250 h | [ΔR/R ≦ 2 %] [S.S. ≦ 2 %] |
| Immersion seal | 85 °C, 60 s | No leaks (No continuous bubbles) |
| Soldering heat | Flow soldering: 260 ± 3 °C, 5 ~ 6 s, two times maximum Manual soldering: 380 ± 10 °C, 3 ~ 4 s |
[ΔR/R ≦ 1 %] |
Maximum Input Ratings
| Nominal resistance values (Ω) | Resistance code | Maximum input voltage (V) | Maximum wiper current (mA) |
|---|---|---|---|
| 10※ | 100 | 1.00 | 100 |
| 20※ | 200 | 2.00 | 100 |
| 50 | 500 | 5.00 | 100 |
| 100 | 101 | 7.07 | 70.7 |
| 200 | 201 | 10.0 | 50.0 |
| 500 | 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 | 104 | 200 | 2.00 |
| 200 k | 204 | 200 | 1.00 |
| 500 k | 504 | 200 | 0.40 |
| 1 M | 105 | 200 | 0.20 |
| 2 M | 205 | 200 | 0.10 |
The products indicated by ※ mark are manufactured upon receipt of order basis.
Part Number Designation
| CT-20 | E | P | 200 kΩ (204) |
|---|---|---|---|
|
Series |
Terminal pin E:
Sn (Lead-free)
|
Terminal shape (Adjust Pos.)※1 P: Through hole (Side adjustment) X: Through hole (Side adjustment) PB: Through hole (Side / Panel mount) |
Resistance value (Resistance code) |
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※1)For the details on each product shape, refer to the following table and Outline Dimensions.

| Nominal resistance values | 10 Ω*, 20 Ω*, 50 Ω, 100 Ω, 200 Ω, 500 Ω, 1 kΩ, 2 kΩ, 5 kΩ, 10 kΩ, 20 kΩ, 50 kΩ, 100 kΩ, 200 kΩ, 500 kΩ, 1 MΩ, 2 MΩ |
|---|
When ordering, please be sure to include the above nominal resistance value at the end of the part number in the table list below. *10 Ω item, 20 Ω item are made to order.
For resistance code, please refer to the Maximum Input Ratings table in the previous section.
List of Part Numbers
CAD models and chemSHERPA-AI files can be downloaded for each P/N from below. *Need to log in to download.
[chemSHERPA.shai2 version: 2.12.00]
| Part No. | Adjustment Position | Form of Packaging | Packaging Spec | Full Material Declarations | CAD | |
|---|---|---|---|---|---|---|
| CT-20EP | Side adjustment | Plastic bag | 50 pcs./pack | |||
| CT-20EX | Side adjustment | Plastic bag | 50 pcs./pack | |||
| CT-20EPB | Panel mount | Plastic bag | 25 pcs./pack |
The chemSHERPA Data (AI) Entry Support Tool for articles V2R1.02.0 (compatible with up to the file ver. 2.12.00) can be downloaded from the official chemSHERPA website here.
Outline Dimensions
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)


Packaging Specifications
〈Bulk pack 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.
Documents
- ●The above contents and descriptions are subject to change without notice.




