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Trimmer potentiometer ST-2

Surface Mount Cermet Trimmers (Single turn)

 

FeaturesFeatures

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 itemTest conditionsSpecifications
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 codeMaximum 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-2TW100 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 button for each P/N in the table below. *Need to log in to download.
Part No.Shape of terminalProduct shapeForm of packagingPieces in packageMaterial dataCAD
ST-2TA J-hook Top adjustment Taping (Reel) 500 pcs./reel
ST-2A J-hook Top adjustment Plastic bag 100 pcs./pack

Recommended P.C.B. Pad Outline Dimensions

Note) The zero point is the center of mounting.

Outline Dimensions

ST-2/ST-32 Adjustment Tool

Packaging Specifications

〈Taping packaging specifications〉

Taping version is packaged in 500 pcs. per reel.
Orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc.
Taping version is boxed with one reel (500 pcs.).
Maximum number of consecutive missing pieces=2 Leader length and reel dimension are shown in the diagrams below.
  • ●Embossed tape dimension
  • ●Reel dimensions
    (Unit: mm)
    (Conforms to JIS C 0806-3 , In accordance with EIAJ ET-7200A)
  • ● ST-2TA
    (Unit: mm)

〈Bulk pack specifications〉

Unit of bulk in a plastic bag is 100 pcs. per pack.
Boxing of bulk in a plastic bag is performed with 500 pcs. per box.

Environmental Data

●The above contents and descriptions are subject to change without notice. 

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