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Trimmer potentiometer ST-2

●To buy this product, please go to the following Online Web stores.
To the Trimmer potentiometer “ST-2 series” page on the DigiKey online shop
To the Trimmer potentiometer “ST-2 series” page on the Mouser online shop
To the Trimmer potentiometer “ST-2 series” page on the Newark online shop

SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN)

  • RoHS compliant
  • Compact and low-profile □ 2 mm single turn type
  • Sealed construction

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-2TA100Ω(101)
Series name
Form of packaging
T: Taping (Reel)
Blank: Bulk in plastic bag
Product shape (Shape of terminal)
A: J-hook(Top adjustment)
Resistance value


Resistance code


LIST OF PART NUMBERS

Nominal resistance values 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 3kΩ, 5kΩ, 10kΩ, 20kΩ, 50kΩ, 100kΩ, 200kΩ, 500kΩ, 1MΩ
■When ordering, be sure to combine the following models with the nominal resistance values shown above at the end.
PART NUMBERShape of terminalProduct shapeForm of packagingPieces in packageCAD
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

Environmental Data

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

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