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Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
TM-7
CERMET TRIMMERS
Test item Test conditions Specifications
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Soldering heat
Nominal resistance range
Resistance tolerance
Power ratings
Resistance law
Maximum input voltage
Maximum wiper current
Effective electrical turn
End resistance
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
Mechanical turn
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Terminal strength
1
2
3
2
13
1
2
3
2
31
Adjustment
position
Pieces in
package
Form of packaging
Plastic bag
Shape of terminal
(Top view)
※The above part numbers are all available as the standard item respectively
with the combination of <Nominal resistance values> (Fig. 1).
※Verify the above part numbers when placing orders.
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LIST OF PART NUMBERS
Top adjustment
Side adjustment
(
↑
Adjustment
direction)
TM-7EP
TM-7EW
TM-7ES
TM-7EX
50 pcs./pack
<Nominal resistance values>
50 Ω100 Ω200 Ω500 Ω1 kΩ2 kΩ5 kΩ10 kΩ
20 kΩ50 kΩ100 kΩ200 kΩ500 kΩ1 MΩ2 MΩ
Δ
R/R:Change in total resistance
S.S. :Setting stability
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ELECTRICAL CHARACTERISTICS
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MECHANICAL CHARACTERISTICS
50 Ω~ 2 MΩ
±10 %
0.5 W (70 °C) 0 W (120 °C)
Linear law
DC300 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
2.5 turns
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
−55 ~ 120 °C
±100 10-6/°C maximum
1000 MΩminimum (DC500 V)
AC900 V, 60 s
Approx. 0.50 g (TM-7EP, EW)
Approx. 0.69 g (TM-7ES, EX)
3 turns
20 mN·m {204 gf·cm} maximum
Clutch action
200 cycles
Δ
R/R ≦±(2 Ω+3 %)
10 N {1.02 kgf} minimum
245 ±3 °C, 2 ~ 3 s
10 N {1.02 kgf} minimum
(
Tensile strength
)
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ENVIRONMENTAL CHARACTERISTICS
−65 ~ 125 °C (0.5 h), 5 cycles [
Δ
R/R ≦1 %]
[S.S. ≦1 %]
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[
Δ
R/R ≦2 %]
981 m/s2, 6 ms
6 directions for 3 times each [
Δ
R/R ≦1 %]
[S.S. ≦1 %]
Amplitude 1.52 mm or
Acceleration 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
70 °C, 0.5 W, 1000 h [
Δ
R/R ≦3 %]
[S.S. ≦1 %]
−55 °C, 2 h [
Δ
R/R ≦2 %]
[S.S. ≦2 %]
120 °C, 250 h [
Δ
R/R ≦3 %]
[S.S. ≦2 %]
85 °C, 60 s
No leaks (No continuous bubbles)
[
Δ
R/R ≦1 %]
Fig. 1
{ }
:
Reference only
Flow soldering
260 ± 3 °C, 5 ~ 6 s, two times maximum
Manual soldering
380 ± 10 °C, 3 ~ 4 s