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Trimmer potentiometer ST-32

Surface Mount Cermet Trimmers (Single Turn)

 

FeaturesFeatures
  • RoHS compliant
  • Rotor with a cross slot for ease of adjustment
  • Leaded terminals provide strong as adhesive strength
    against P.C.B. bending
  • J-hook, Gull wing and leaded terminal configurations
  • Sealed construction (Washable)
  • 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

公Nominal resistance range 10 Ω ~ 2 MΩ
Resistance tolerance ± 20 %
Power ratings 0.125 W (70 °C), 0 W (125 °C)
Resistance law Linear law (B)
Maximum input voltage DC200 V or power rating, whichever is smaller
Maximum wiper current 100 mA or power rating, whichever is smaller
Effective electrical angle 210 ° (1 turn)
End resistance 1 % or 2 Ω , whichever is greater
C.R.V. 1 % or 3 Ω , whichever is greater
Operating temp. range -55 ~ 125 °C
Temp. coefficient 10 Ω ~ 50 Ω: ± 250 10-6/°C maximum
100 Ω ~ 2 MΩ: ± 100 10-6/°C maximum
Insulation resistance 1000 MΩ minimum (DC 500 V)
Dielectric strength AC 500 V, 60 s
Net weight Approx. 0.05 g (ST-32EA,EB)
Approx. 0.11 g (ST-32EG,EH)

Mechanical Characteristics

Mechanical angle 250° (1 turn)
Operating torque 5 mN·m {51 gf·cm} maximum
Stop strength 20 mN·m {204 gf·cm} minimum
Rotational life 100 cycles [ΔR/R ≦ ± (2 Ω +3%)]
Thrust to rotor 5 N {0.51 kgf} minimum
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. ≦ 1%]
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 ≦ 1%]
[S.S. ≦ 1%]
Vibration Amplitude 1.52 mm or Acceleration 196 m/s210~2000 Hz, 3 directions, 12 times each [ΔR/R ≦ 1%]
[S.S. ≦ 1%]
Load life 70 °C, 0.125 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
  • Flow : 260 ± 3 °C as the temperature in a pot of molten solder, immer sion from head of ter minal to backside of board, 5 ~ 6 s, two times maximum.
  • Reflow :Peak temperature 255 °C (Please refer to the profile below.)
  • Manual soldering:350 ± 10 °C, 3 ~ 4 s
[ΔR/R ≦ 1%]
Δ R/R: Change in total resistance 
S.S.: Setting stability
〈Reflow profile for soldering heat evaluation〉

Maximum Input Ratings

Nominal resistance values(Ω)Resistance codeMaximum input voltage(V)Maximum wiper current (mA)
10 11 1.00 100
20 21 1.58 79.1
50 51 2.50 50.0
100 12 3.53 35.4
200 22 5.00 25.0
300 32 6.12 20.4
500 52 7.91 15.8
1k 13 11.2 11.2
2k 23 15.8 7.91
3k 33 19.4 6.45
5k 53 25.0 5.00
10k 14 35.4 3.54
20k 24 50.0 2.50
30k 34 61.2 2.04
50k 54 79.1 1.58
100k 15 112 1.12
200k 25 158 0.79
500k 55 200 0.40
1M 16 200 0.20
2M 26 200 0.10
※ The products indicated by ※ mark are manufactured upon receipt of order basis.

Part Number Designation

ST-32ETA100 Ω (12)

Series

Terminal pins

E: 

Sn-Cu

(Lead-free)

Packaging form

T: Taping (Reel)

Blank: 

Bulk in

plastic bag

Terminal shape (Adjust Pos.)

A: J-hook (Top adjust)

B: Gull wing (Top adjust)

G: J-hook (Side adjust)

H: Gull wing (Side adjust)

Resistance value (Resistance code)

 
Nominal resistance values 10Ω*, 20Ω*, 50Ω, 100Ω, 200Ω, 300Ω, 500Ω, 1kΩ, 2kΩ, 3kΩ, 5kΩ, 10kΩ, 20kΩ, 30kΩ, 50kΩ, 100kΩ, 200kΩ, 500kΩ, 1MΩ, 2MΩ
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 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.Terminal shapeAdjustment positionPackaging formPackaging quantityMaterial dataCAD
ST-32ETA J-hook Top adjust Taping 500 pcs./reel
ST-32EA J-hook Top adjust Bulk 100 pcs./pack
ST-32ETB Gull wing Top adjust Taping 500 pcs./reel
ST-32EB Gull wing Top adjust Bulk 100 pcs./pack
ST-32ETG J-hook Side adjust Taping 500 pcs./reel
ST-32EG J-hook Side adjust Bulk 100 pcs./pack
ST-32ETH Gull wing Side adjust Taping 500 pcs./reel
ST-32EH Gull wing Side adjust Bulk 100 pcs./pack

Recommended P.C.B. Pad Outline Dimensions

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.
ST-32ETA, ETB versions are boxed with 4 reels (2000 pcs.).
ST-32ETG, ETH versions are 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 dimensions
  • ●Reel dimensions
    (Unit: mm)
    (Conforms to JIS C 0806-3 , In accordance with EIAJ ET-7200A)
  • ●ST-32ETA,ETB
  • ●ST-32ETG,ETH
    (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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