SM-42TX102 Datasheet, PDF (2/5 Pages) List of Unclassifed Manufacturers – SURFACE MOUNT CERMET TRIMMERS

COPAL ELECTRONICS
SM-42/43
SURFACE MOUNT TRIMMERS
˙LIST OF PART NUMBERS
Electrical turn
Adjustment
position
Shape of terminal
Form of packaging
Taping (reel)
Plastic bag
W (J-hook)
Top adjustment
X (Gull wing)
11
A (J-hook)
Side adjustment
B (Gull wing)
SM-42TW
SM-42TX
SM-42TA
SM-42TB
SM-42W
SM-42X
SM-42A
SM-42B
W (J-hook)
Top adjustment
X (Gull wing)
5
A (J-hook)
Side adjustment
B (Gull wing)
SM-43TW
SM-43TX
SM-43TA
SM-43TB
SM-43W
SM-43X
SM-43A
SM-43B
Pieces in package
TA, TB : 500 pcs./reel
TW, TX : 250 pcs./reel
50 pcs./pack
˙ELECTRICAL CHARACTERISTICS
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 MΩ minimum (DC500 V)
AC600 V, 60 s
Approx. 0.17 g
Reflow profile for soldering heat evaluationʫ
(°C)
250
200
180 °C
150 150 °C
100
50
Peak
:
250
+5
0
°C
Over 230 °C
Pre Heating Zone
90 ± 30 s
30 ± 10 s
Heating time ^{Soldering Zone}
Reflow : two times maximum
ʪNominal resistance valuesʫ
A 10 Ω A 20 Ω 50 Ω 100 Ω 200 Ω 500 Ω 1 kΩ 2 kΩ 5 kΩ
10 kΩ 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.
˙MECHANICAL CHARACTERISTICS
Operating torque
17.6 mN·m {180 gf·cm} maximum
Mechanical stop
Clutch action
Rotational life
200 cycles [϶R/R ʽ ± (3 Ω +3 %)]
Thrust to shaft
5 N {0.51 kgf} minimum
Solderability
245 ± 3 °C, 2 ~ 3 s
Shear (Adhesion)
5 N {0.51 kgf} 10 s
Substrate bending
Width 90 mm, bend 3 mm, 5 s, 1 time
Pull-off strength
5 N {0.51 kgf} 10 s
{ }É¿Reference only
˙ENVIRONMENTAL CHARACTERISTICS
Test item
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Test conditions
Specifications
−65 ~ 150 °C (0.5 h), 5 cycles
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
981 m/s², 6 ms
6 directions for 3 times each
Amplitude 1.52 mm or
Acceleration 196 m/s²,
10 ~ 2000 Hz, 3 directions, 12 times each
85 °C, 0.25 W, 1000 h
−65 °C, 2 h
150 °C, 250 h
[϶R/R ʽ 2 %]
[S.S. ʽ 1 %]
[϶R/R ʽ 2 %]
[϶R/R ʽ 1 %]
[S.S. ʽ 1 %]
[϶R/R ʽ 3 % or 3 Ω]
[S.S. ʽ 2 %]
[϶R/R ʽ 1 %]
[S.S. ʽ 1 %]
[϶R/R ʽ 2 %]
[S.S. ʽ 1 %]
85 °C, 60 s
No leaks (No continuous bubbles)
Soldering heat
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual solderingɿ
350 ± 10 °C, 3 ~ 4 s
[϶R/R ʽ 1 %]
϶R/RɿChange in total resistance
S.S. É¿Setting stability
˙ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.