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Trimmpotentiometer TM-7

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3 TURNS CERMET TRIMMERS

  • RoHS compliant
  • Fine setting is possible
  • Extremely small backlash (In house comparison)

ELECTRICAL CHARACTERISTICS

Power ratings 0.5 W (70 °C) 0 W (120 °C)
Nominal resistance range 50 Ω ~ 2 MΩ
Resistance tolerance ± 10 %
Resistance law Linear law(B)
Maximum input voltage DC300 V or power rating, whichever is smaller
Maximum wiper current 100 mA or power rating, whichever is smaller
Effective electrical turn 2.5 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 ± 100 10-6/°C maximum
Insulation resistance 1000 MΩ minimum (DC500 V)
Dielectric strength AC900 V, 60 s
Net weight Approx. 0.50 g (TM-7EP, EW)
Approx. 0.69 g (TM-7ES, EX)

MECHANICAL CHARACTERISTICS

Mechanical turn 3 turns
Operating torque 20 mN·m {204 gf·cm} maximum
Mechanical stop Clutch action
Rotational life 200 cycles ΔR/R ≦ ± (2 Ω +3 %)
Terminal strength 10 N {1.02 kgf} minimum(Tensile strength)
Thrust to shaft 10 N {1.02 kgf} minimum
Solderability 245 ± 3 °C, 2 ~ 3 s

{ }:Reference only

ENVIRONMENTAL CHARACTERISTICS

Test itemTest conditionsSpecifications
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 ≦ 2 %]
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 ≦ 3 %] [S.S. ≦ 1 %]
Low temp. operation −55 °C, 2 h [ΔR/R ≦ 2 %] [S.S. ≦ 2 %]
High temp. exposure 120 °C, 250 h [ΔR/R ≦ 3 %] [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 %]
Δ R/R:Change in total resistance  S.S. :Setting stability

MAXIMUM INPUT RATINGS

Nominal resistance values (Ω)Resistance codeMaximum input voltage(V)Maximum wiper current(mA)
50 500 5.00 100
100 101 7.07 70.7
200 201 10.0 50.0
500 501 15.8 31.6
1k 102 22.4 22.4
2k 202 31.6 15.8
5k 502 50.0 10.0
10k 103 70.7 7.07
20k 203 100 5.00
50k 503 158 3.16
100k 104 224 2.24
200k 204 300 1.50
500k 504 300 0.60
1M 105 300 0.30
2M 205 300 0.15

PART NUMBER DESIGNATION

TM-7EP50 kΩ(503)
Series name


Terminal pin
E:Sn (Lead-free)

Product shape
P:Through hole(Top adjustment)
W:Through hole(Top adjustment)
S:Through hole(Side adjustment)
X:Through hole(Top adjustment)

Resistance value


Resistance code


 

LIST OF PART NUMBERS

Nominal resistance values 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ, 50kΩ, 100kΩ, 200kΩ, 500kΩ, 1MΩ, 2MΩ
※ The above part numbers are all available as the standard item respectively with the combination of <Nominal resistance values> 
※ Verify the above part numbers when placing orders.
PART NUMBERAdjustment positionShape of TerminalPieces in packageCAD
TM-7EP Top adjustment Through hole 50 pcs./pack
TM-7EW Top adjustment Through hole 50 pcs./pack
TM-7ES Side adjustment Through hole 50 pcs./pack
TM-7EX Side adjustment Through hole 50 pcs./pack

OUTLINE DIMENSIONS

Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)

Environmental Data

●Die oben genannten Inhalte können ohne vorherige Ankündigung geändert werden.

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