SM-3W103 Datasheet, PDF (2/5 Pages) List of Unclassifed Manufacturers – SURFACE MOUNT CERMET TRIMMERS

COPAL ELECTRONICS
SM-3/31
SURFACE MOUNT TRIMMERS
˙LIST OF PART NUMBERS
Electrical turns
Adjustment
position
Shape of terminal
Form of packaging
Taping (reel)
Plastic bag
Top adjustment W (J-hook)
SM-3TW
SM-3W
11
A (J-hook)
SM-3TA
Side adjustment
B (Gull wing)
SM-3TB
SM-3A
SM-3B
Top adjustment W (J-hook)
SM-31TW
SM-31W
5
A (J-hook)
SM-31TA
SM-31A
Side adjustment
B (Gull wing)
SM-31TB
SM-31B
Pieces in package
500 pcs./reel 50 pcs./pack
ʪNominal resistance valuesʫ
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 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.
˙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
50 Ω ~ 2 MΩ
± 20 %
0.125 W (70 °C) 0 W (150 °C)
Linear law
DC200 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
11 turns (SM-3) / 5 turns (SM-31)
1 % or 3 Ω, whichever is greater
3 % or 3 Ω, whichever is greater
−65 ~ 150 °C
± 100 10^-6/°C maximum
100 MΩ minimum (DC500 V)
AC600 V, 60 s
Approx. 0.10 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
˙MECHANICAL CHARACTERISTICS
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
5 mN·m {51 gf·cm} maximum
Clutch action
200 cycles [϶R/R ʽ ± (2 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
{ }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
70 °C, 0.125 W, 1000 h
−65 °C, 2 h
150 °C, 250 h
[϶R/R ʽ 2 %]
[S.S. ʽ 2 %]
[϶R/R ʽ 3 %]
[϶R/R ʽ 1 %]
[S.S. ʽ 1 %]
[϶R/R ʽ 3 %]
[S.S. ʽ 2 %]
[϶R/R ʽ 2 %]
[S.S. ʽ 2 %]
[϶R/R ʽ 3 %]
[S.S. ʽ 2 %]
85 °C, 60 s
No leaks (No continuous bubbles)
Soldering heat
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual solderingɿ350 ± 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.