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SM-42 数据表(PDF) 2 Page - List of Unclassifed Manufacturers

部件名 SM-42
功能描述  SURFACE MOUNT CERMET TRIMMERS
Download  5 Pages
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制造商  ETC2 [List of Unclassifed Manufacturers]
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标志 ETC2 - List of Unclassifed Manufacturers

SM-42 数据表(HTML) 2 Page - List of Unclassifed Manufacturers

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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 ELECTRONICS
Top adjustment
11
5
Side adjustment
Top adjustment
Side adjustment
Pieces in package
Adjustment
position
Electrical turn
Shape of terminal
Form of packaging
Taping (reel)
Plastic bag
LIST OF PART NUMBERS
W (J-hook)
A
B
SM-42TW
SM-42W
SM-42TX
SM-42X
SM-42TA
SM-42A
SM-42TB
SM-42B
SM-43TW
SM-43W
SM-43TX
SM-43X
SM-43TA
SM-43A
SM-43TB
SM-43B
TA, TB : 500 pcs./reel
TW, TX : 250 pcs./reel
50 pcs./pack
Nominal resistance values
ELECTRICAL CHARACTERISTICS
MECHANICAL CHARACTERISTICS
ENVIRONMENTAL CHARACTERISTICS
A 10
Ω A 20 Ω 50 Ω 100 Ω 200 Ω 500 Ω 1 kΩ
2 k
Ω
5 k
Ω
10 k
Ω 20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 2 MΩ
Fig. 1
The products indicated by
A mark are manufactured upon receipt of order basis.
※The above part numbers are all available with the respective combination of
<Nominal resistance values> (Fig. 1).
※Verify the above part numbers when placing orders.
※Taping specification is not sold separately and must be purchased in reel units.
SM-42/43
SURFACE MOUNT TRIMMERS
X (Gull wing)
(J-hook)
(Gull wing)
W (J-hook)
A
B
X (Gull wing)
(J-hook)
(Gull wing)
Reflow profile for soldering heat evaluation
Reflow : two times maximum
Peak : 250
Over 230
°C
Pre Heating Zone
180
°C
(
°C)
250
200
150
100
50
150
°C
90
± 30 s
30
± 10 s
Soldering Zone
Heating time
°C
+5
0
Soldering heat
[ΔR/R
≦ 1 %]
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual soldering
350
± 10 °C, 3 ~ 4 s
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
17.6 mN·m {180 gf·cm} maximum
Clutch action
200 cycles [ΔR/R
± (3 Ω+3 %)]
5 N {0.51 kgf} minimum
245
± 3 °C, 2 ~ 3 s
5 N {0.51 kgf} 10 s
Width 90 mm, bend 3 mm, 5 s, 1 time
5 N {0.51 kgf} 10 s
{ }Reference only
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
10
Ω ~ 2 MΩ
± 10 %
0.25 W (85 °C) 0 W (150 °C)
Linear law
DC300 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
11 turns (SM-42), 5 turns (SM-43)
1 % or 2
Ω, whichever is greater
1 % or 3
Ω, whichever is greater
−65 ~ 150 °C
±100 10-6/°C maximum
100 M
Ω minimum (DC500 V)
AC600 V, 60 s
Approx. 0.17 g
Test item
Test conditions
Specifications
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
ΔR/R
:Change in total resistance
S.S.
:Setting stability
−65 ~ 150 °C (0.5 h), 5 cycles
[ΔR/R
≦ 2 %]
[S.S.
≦ 1 %]
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[ΔR/R
≦ 2 %]
981 m/s
2, 6 ms
6 directions for 3 times each
[ΔR/R
≦ 1 %]
[S.S.
≦ 1 %]
Amplitude 1.52 mm or
Acceleration 196 m/s
2,
10 ~ 2000 Hz, 3 directions, 12 times each
85 °C, 0.25 W, 1000 h
[ΔR/R
≦ 3 % or 3
Ω]
[S.S.
≦ 2 %]
−65 °C, 2 h
[ΔR/R
≦ 1 %]
[S.S.
≦ 1 %]
150 °C, 250 h
[ΔR/R
≦ 2 %]
[S.S.
≦ 1 %]
85 °C, 60 s
No leaks (No continuous bubbles)


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