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

1

3

1

2

3

2

3

1

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.

Top adjustment

Side adjustment

direction)

TM-7EP

TM-7EW

TM-7ES

TM-7EX

50 pcs./pack

<Nominal resistance values>

50

Ω

100

Ω

200

Ω

500

Ω

1 k

Ω

2 k

Ω

5 k

Ω

10 k

Ω

20 k

Ω

50 k

Ω

100 k

Ω

200 k

Ω

500 k

Ω

1 M

Ω

2 M

Ω

Δ R/R：Change in total resistance

S.S.

：Setting stability

50

Ω ~ 2 MΩ

± 10 %

0.5 W (70 °C) 0 W (120 °C)

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

1000 M

Ω minimum (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

ΔR/R ≦

± (2 Ω +3 %)

10 N {1.02 kgf} minimum

245

± 3 °C, 2 ~ 3 s

10 N {1.02 kgf} minimum

−65 ~ 125 °C (0.5 h), 5 cycles

[

ΔR/R ≦ 1 %]

[S.S.

≦ 1 %]

−10 ~ 65 °C (80 ~ 98 %),

10 cycles, 240 h

[

ΔR/R ≦ 2 %]

981 m/s

6 directions for 3 times each

[

ΔR/R ≦ 1 %]

[S.S.

≦ 1 %]

(Amplitude) 1.52 mm or

(Acceleration) 196 m/s

10 ~ 2000 Hz, 3 directions, 12 times each

70 °C, 0.5 W, 1000 h

[

ΔR/R ≦ 3 %]

[S.S.

≦ 1 %]

−55 °C, 2 h

[

ΔR/R ≦ 2 %]

[S.S.

≦ 2 %]

120 °C, 250 h

[

ΔR/R ≦ 3 %]

[S.S.

≦ 2 %]

85 °C, 60 s

No leaks (No continuous bubbles)

[

ΔR/R ≦ 1 %]

Fig. 1

Flow

260 ± 3 °C, 5 ~ 6 s, two times maximum

Manual soldering

380 ± 10 °C, 3 ~ 4 s