TM-7 構造図
3 TURNS CERMET TRIMMERS
RoHS compliant
TM-7
INTERNAL STRUCTURE
⑩
①
⑨
②
⑧
③
④
⑤
Part name
■ FEATURES
●
●
●
●
RoHS compliant
Fine setting is possible
Extremely small backlash (In house comparison)
Resin material is UL Recognized 94V-0
⑥
⑦
Material
①
Shaft
②
Rubber cushion
Silicone rubber
③
Wiper
Multi metal alloy
④
Base element
⑤
Adhesive
⑥
Terminal pin
⑦
Resistive element
RuO2 cermet
⑧
Electrode
Ag-Pd cermet
⑨
Rotor gear
Polyamide
⑩
Housing
Zinc alloy, Nickel-plated
Ceramic
Epoxy
Copper, Tin-plated
Polybutyleneterephthalate
■ PART NUMBER DESIGNATION
T M - 7 E P 5 0 kΩ ( 5 0 3 )
Series name
Resistance code
Terminal pin
Resistance value
E:Sn (Lead-free)
Product shape
P:Top adjustment
W:Top adjustment
S :Side adjustment
X:Side adjustment
※ Please refer to the LIST OF PART NUMBERS when placing orders.
TM-7
CERMET TRIMMERS
■ LIST OF PART NUMBERS
Adjustment
position
Shape of terminal
(Top view)
Top adjustment
Form of packaging
Plastic bag
50 Ω 100 Ω 200 Ω 500 Ω
Pieces in
package
③
TM-7EP
③
TM-7EW
③
TM-7ES
②
①
①
③
100 kΩ
200 kΩ
1 kΩ
2 kΩ
5 kΩ
500 kΩ
1 MΩ
2 MΩ
Fig. 1
①
②
TM-7EX
■ ELECTRICAL CHARACTERISTICS
Nominal resistance range
Resistance tolerance
50 Ω ~ 2 MΩ
± 10 %
Power ratings
0.5 W (70 °C) 0 W (120 °C)
Resistance law
Linear law
Maximum input voltage DC300 V or power rating, whichever is smaller
■ MECHANICAL CHARACTERISTICS
Mechanical turn
3 turns
Operating torque
20 mN·m {204 gf·cm} maximum
Mechanical stop
Clutch action
200 cycles ΔR/R ≦ ± (2 Ω +3 %)
Rotational life
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
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
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
10 kΩ
50 pcs./pack
②
Side
adjustment
(↑Adjustment
direction)
50 kΩ
※ The above part numbers are all available as the standard item respectively
with the combination of (Fig. 1).
※ Verify the above part numbers when placing orders.
②
①
20 kΩ
− 55 ~ 120 °C
± 100 10-6/°C maximum
1000 MΩ minimum (DC500 V)
AC900 V, 60 s
Approx. 0.50 g (TM-7EP, EW)
Approx. 0.69 g (TM-7ES, EX)
■ ENVIRONMENTAL CHARACTERISTICS
Test item
Test conditions
− 65 ~ 125 °C (0.5 h),
Thermal shock
5 cycles
−10 ~ 65 °C (80 ~ 98 %),
Humidity
10 cycles, 240 h
981 m/s2, 6 ms
Shock
6 directions for 3 times each
Vibration
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
Load life
70 °C, 0.5 W, 1000 h
Low temp. operation
− 55 °C, 2 h
High temp. exposure
120 °C, 250 h
Immersion seal
85 °C, 60 s
Soldering heat
Flow
260 ± 3 °C, 5 ~ 6 s, two times
maximum
Manual soldering
380 ± 10 °C, 3 ~ 4 s
Specifications
[ΔR/R ≦ 1 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 2 %]
[ΔR/R ≦ 1 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 3 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 2 %]
[S.S. ≦ 2 %]
[ΔR/R ≦ 3 %]
[S.S. ≦ 2 %]
No leaks (No continuous bubbles)
[ΔR/R ≦ 1 %]
ΔR/R:Change in total resistance
S.S. :Setting stability
TM-7
CERMET TRIMMERS
■ MAXIMUM INPUT RATINGS
Nominal resistance values ( Ω )
Resistance code
50
100
200
500
Maximum input voltage (V)
Maximum wiper current (mA)
500 5.00 100
101
7.07
70.7
201
10.0
50.0
501
15.8
31.6
1 k
102
22.4
22.4
2 k
202
31.6
15.8
5 k
502
50.0
10.0
10 k
103
70.7
7.07
20 k
203
100
5.00
50 k 503 158 3.16
100 k
200 k
500 k
1 M
2 M
104
204
504
105
205
TM-7P 外形図
224
300
300
300
300
2.24
1.50
0.60
0.30
0.15
■ OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
● TM-7EP
Top adjustment
①
φ2.5, Slot 0.6 W × 0.7 D
TM-7W 外形図
CW rotation
2
6.9
7±2
1.8
1.8
0.3
2
+0.4
Φ 7.2–0.1
1.3
φ2.5, Slot 0.6 W × 0.7 D
1.5
1
3 –φ0.45
● TM-7EW
Top adjustment
★
0.6
TM-7S 外形図
②
2.5
3
Lead-free Identification mark
③
2.5 2.5
0.3
Resistance code & Production date code
3
Resistance code & Production date code
Pin pitch in W type is
different from P type.
1
3 –φ0.45
φ2.5, Slot 0.6 W × 0.7 D
Resistance code & Production date code
7.2 +0.4
–0.1
0.3
● TM-7ES
Side adjustment
7±2
Φ 7.2+0.4
–0.1
1.5
Lead-free Identification mark
6.9
2.5
8.2 +0.4
–0.1
1
6.2
8.4
2.5 2.5
6.5±2
Lead-free Identification mark
0.8
2
3 –φ0.45
3
TM-7
CERMET TRIMMERS
TM-7X 外形図
■ OUTLINE DIMENSIONS
● TM-7EX
Side adjustment
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
①
Resistance code & Production date code
③
7.2 +0.4
–0.1
CW rotation
②
0.3
φ2.5, Slot 0.6 W × 0.7 D
9±2
8.2 +0.4
–0.1
Lead-free Identification mark
2.5 2.5
0.8
3.2
2.5
8.4
2
3
3 –φ0.45
1
★ Pin position & shaft position of X type are different from S type.
■PACKAGING SPECIFICATIONS
● Unit of bulk in a plastic bag is 50 pcs. per pack.
● Boxing of bulk in a plastic bag is performed with 200 pcs. per box.
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