Trimmer potentiometer ST-2｜NIDEC COMPONENTS, Inc.

Trimmer potentiometer ST-2

ST-2

ST-2

●To buy this product, please go to the following Online Web stores.

Surface Mount Cermet Trimmers (Single turn)

FeaturesFeatures

Compact and low-profile □ 2 mm single turn type
Sealed construction
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	100 Ω ~ 1 MΩ
Resistance tolerance	± 20 %
Power ratings	0.1 W (70 °C), 0 W (125 °C)
Resistance law	Linear law(B)
Maximum input voltage	DC50 V or power rating, whichever is smaller
Maximum wiper current	Within power ratings (I=√P/R A)
Effective electrical angle	240 ° (1 turn)
End resistance	1 % or 2 Ω , whichever is greater
C.R.V.	2 % or 3 Ω , whichever is greater
Operating temp. range	-55 ~ 125 °C
Temp. coefficient	± 150 10-6/°C
Insulation resistance	1000 MΩ minimum (DC 500 V)
Dielectric strength	AC 500 V, 60 s
Net weight	Approx. 0.032 g

Mechanical Characteristics

Mechanical angle	270 ° (1 turn)
Operating torque	5 mN·m {51 gf·cm} max.
Stop strength	8 mN·m {78.4 gf·cm} min.
Rotational life	50 cycles [ΔR/R ≦ ± (2 Ω + 5 %)]
Thrust to rotor	3 N {0.31 kgf} min.
Solderability	245 ± 3 °C,2 ~ 3 s
Shear (Adhesion)	5 N {0.51 kgf} 10 s
Substrate bending	Width 90 mm, bend 3 mm, 5 s, 1 time
Pull-off strength	5 N {0.51 kgf} 10 s

Environmental Characteristics

Test item	Test conditions	Specifications
Thermal shock	−65 ~ 125 °C (0.5 h), 5 cycles	[ΔR/R ≦ 2 %] [S.S. ≦ 2 %]
Humidity	−10 ~ 65 °C (Relative humidity 80 ~ 98 %), 10 cycles, 240 h	[ΔR/R ≦ 2 %]
Shock	981 m/s2, 6 ms 6 directions for 3 times each	[ΔR/R ≦ 2 %] [S.S. ≦ 1 %]
Vibration	Amplitude 1.52 mm or Acceleration 196 m/s2, 10 ~ 2000 Hz, 3 directions, 12 times each	[ΔR/R ≦ 2 %] [S.S. ≦ 1 %]
Load life	70 °C, 0.1 W 1000 h	[ΔR/R ≦ 3 %] [S.S. ≦ 1 %]
Low temp. operation	−55 °C, 2 h	[ΔR/R ≦ 2 %] [S.S. ≦ 2 %]
High temp. exposure	125 °C, 250 h	[ΔR/R ≦ 3 %] [S.S. ≦ 2 %]
Immersion seal	85 °C, 60 s	No leaks (No continuous bubbles）
Soldering heat	Reflow Peak temperature : 255 °C (Please refer to the profile below） Flow soldering：260 ± 3 °C, 5 ~ 6 s, two timesmaximum Manual soldering：350 ± 10 °C, 3 ~ 4 s	[ΔR/R ≦ ± 1 %]

〈Reflow profile for soldering heat evaluation〉

Maximum Input Ratings

Nominal resistance values(Ω)	Resistance code	Maximum input voltage(V)	Maximum wiper current(mA)
100	101	3.16	31.6
200	201	4.47	22.4
500	501	7.07	14.1
1k	102	10.0	10.0
2k	202	14.1	7.1
5k	502	22.3	4.5
10k	103	31.6	3.2
20k	203	44.7	2.2
50k	503	50.0	1.0
100k	104	50.0	0.5
200k	204	50.0	0.25
500k	504	50.0	0.1
1M	105	50.0	0.05

Part Number Designation

ST-2	T	W	100 Ω (101)
Series	Form of packaging T: Taping (Reel) Blank: Bulk in plastic bag	Terminal shape (Adjust Pos.) A: J-hook (Top adjustment)	Resistance value (Resistance code)

ST-2

100 Ω (101)

Series

Form of packaging

T: Taping (Reel)

Blank:

Bulk in plastic bag

Terminal shape (Adjust Pos.)

A: J-hook (Top adjustment)

Resistance value (Resistance code)

Nominal resistance values	100 Ω, 200 Ω, 500 Ω, 1 kΩ, 2 kΩ, 3 kΩ, 5 kΩ, 10 kΩ, 20 kΩ, 50 kΩ, 100 kΩ, 200 kΩ, 500 kΩ, 1 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. For resistance code, please refer to the Maximum Input Ratings table in the previous section.

List of Part Numbers

CAD and chemSHERPA-AI (a material data sheet ideal for REACH surveys, etc. / version: 2.09.00) can be downloaded from the popup for each P/N in the table below. *Need to log in to download.

Part No.	Shape of terminal	Product shape	Form of packaging	Pieces in package	Material data	CAD
ST-2TA	J-hook	Top adjustment	Taping (Reel)	500 pcs./reel	chemSHERPA-AI (Ver.2.09.00)	2D / 3D CAD(Any Model)
ST-2A	J-hook	Top adjustment	Plastic bag	100 pcs./pack	chemSHERPA-AI (Ver.2.09.00)	2D / 3D CAD(Any Model)