ST-5EMW View Datasheet(PDF) - Unspecified
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Description
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ST-5EMW Datasheet PDF : 6 Pages
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ST-5
SURFACE MOUNT TRIMMERS
■ LIST OF PART NUMBERS
Adjustment
position Shape of terminal
Top adjustment W (Gull wing)
Side
adjustment
X (Gull wing)
P (Gull wing)
R (Gull wing)
Pieces in package
Taping (reel)
ST-5ETW
ST-5ETX
ST-5ETP
ST-5ETR
500 pcs./reel
Form of packaging
Magazine (stick)
ST-5EMW
ST-5EMX
ST-5EMP
ST-5EMR
50 pcs./stick
Plastic bag
ST-5EW
ST-5EX
ST-5EP
ST-5ER
50 pcs./pack
The products indicated by A mark are manufactured upon receipt of order basis.
■ 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 (120 °C)
（B）Linear law
DC200 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
11 turns
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
− 55 ~ 120 °C
10 Ω ~ 50 Ω : ± 250 10-6/°C maximum
100 Ω ~ 2 MΩ : ± 100 10-6/°C maximum
1000 MΩ minimum (DC500 V)
AC600 V, 60 s
Approx. 0.35 g
Reflow profile for soldering heat evaluation〉
(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
〈Nominal resistance values〉
A10 Ω A20 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 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 and magazine specifications are not sold separately and must be purchased in reel or stick units.
■ MECHANICAL CHARACTERISTICS
Mechanical turn
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
14 turns
20 mN·m {204 gf·cm} maximum
Clutch action
200 cycles
10 Ω ~ 200 Ω [ΔR/R ≦ ± (0.5 Ω + 3 %)]
500 Ω ~ 2 MΩ [ΔR/R ≦ ± (0.5 Ω + 2 %)]
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
■ ENVIRONMENTAL CHARACTERISTICS
Test item
Test conditions
Specifications
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
−65 ~ 125 °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
[ΔR/R ≦ 1 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 1 %]
[ΔR/R ≦ 1 %]
[S.S. ≦ 1 %]
85 °C, 0.25 W, 1000 h
−55 °C, 2 h
120 °C, 250 h
85 °C, 60 s
[ΔR/R ≦ 2 %]
[S.S. ≦ 1 %]
[ΔR/R ≦ 2 %]
[S.S. ≦ 2 %]
[ΔR/R ≦ 2 %]
[S.S. ≦ 2 %]
もれ無し（連続気泡無し）
No leaks (No continuous bubbles)
Soldering heat
Flow : 260 ± 3 °C as the temperature in a
pot of molten solder, immersion
from head of terminal to backside
of board, 5 ~ 6 s, two times
maximum
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
手はんだ Manual soldering：350 ± 10
°C, 3 ~ 4 s
[ΔR/R ≦ 1 %]
ΔR/R：Change in total resistance
S.S. ：Setting stability
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