Leaded terminals provide strong as adhesive strength
against P.C.B. bending
●
J-hook, Gull wing and leaded terminal configurations
●
Sealed (Washable: Refer to A-328)
1
2
3
4
5
6
7
8
9
Wiper
Cover
Housing
Terminal pin
Base element
“O” ring
Rotor
Electrode
Resistive element
UL-94V-0
UL-94HB
UL-94V-0
Ag-Pd cermet
—
RuO cermet
2
■
PART NUMBER DESIGNATION
S T - 3 2 E T A 1 0 0
Ω
( 1 2 )
Series name
Terminal pin
E：Sn-Cu (Lead-free)
Resistance code
Resistance value
Form of packaging
T：Taping (Reel)
Blank：Bulk in plastic bag
Product shape (Shape of terminal)
A, G：J-hook
B, H：Gull
wing
※Please
refer to the LIST OF PART NUMBERS when placing orders.
Specifications are subject to change without notice.
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
ST-32
■
LIST OF PART NUMBERS
Adjustment
position
Shape of
terminal
A (
J-hook
)
B (
Gull wing
)
G (
J-hook
)
H (
Gull wing
)
〈
Nominal resistance values
〉
A
10
Ω
A
20
Ω
Form of packaging
Taping (reel)
ST-32ETA
ST-32ETB
ST-32ETG
ST-32ETH
500 pcs./reel
Plastic bag
ST-32EA
ST-32EB
ST-32EG
ST-32EH
100 pcs./pack
50
Ω
3 kΩ
200 kΩ
100
Ω
5 kΩ
500 kΩ
200
Ω
10 kΩ
1 MΩ
300
Ω
20 kΩ
2 MΩ
500
Ω
30 kΩ
1 kΩ
50 kΩ
2 kΩ
100 kΩ
Fig.1
Top
adjustment
Side
adjustment
The products indicated by
A
mark are manufactured upon receipt of order basis.
※The
part numbers on the left 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.
Pieces in package
■
ELECTRICAL CHARACTERISTICS
Nominal resistance range
Resistance tolerance
Power ratings
Resistance law
Maximum input voltage
Maximum wiper current
Effective electrical angle
End resistance
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
10
Ω
~ 2 MΩ
±
20 %
0.125 W (70 °C) 0 W (125 °C)
Linear law (B)
DC200 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
210 ° (1 turn)
1 % or 2
Ω,
whichever is greater
1 % or 3
Ω,
whichever is greater
−55
~ 125 °C
10
Ω
~ 50
Ω
:
±
250 10
-6
/°C maximum
100
Ω
~ 2 MΩ :
±
100 10
-6
/°C maximum
1000 MΩ minimum (DC500 V)
AC500 V, 60 s
Approx. 0.05 g (ST-32EA, EB)
Approx. 0.11 g (ST-32EG, EH)
■
MECHANICAL CHARACTERISTICS
Mechanical angle
Operating torque
Stop strength
Rotational life
Thrust to rotor
250 ° (1 turn)
5 mN·m {51 gf·cm} maximum
20 mN·m {204 gf·cm} minimum
100 cycles [
Δ
R/R
≦
±
(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
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
{ }
：
Reference only
■
ENVIRONMENTAL CHARACTERISTICS
Test item
Thermal shock
Humidity
Test conditions
−65
~ 125 °C (0.5 h), 5 cycles
−10
~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
981 m/s
2
, 6 ms
6 directions for 3 times each
Amplitude 1.52 mm or
Acceleration 196 m/s
2
,
10 ~ 2000 Hz, 3 directions, 12 times each
Specifications
[
Δ
R/R
≦
2 %]
[S.S.
≦
1 %]
[
Δ
R/R
≦
2 %]
[
Δ
R/R
≦
1 %]
[S.S.
≦
1 %]
[
Δ
R/R
≦
3 %]
[S.S.
≦
1 %]
[
Δ
R/R
≦
2 %]
[S.S.
≦
2 %]
[
Δ
R/R
≦
3 %]
[S.S.
≦
2 %]
No leaks (No continuous bubbles)
Reflow profile for soldering heat evaluation
〉
(°C)
250
Temperature
200
150
100
50
Peak : 250
+5
0
Shock
Vibration
Load life
Low temp. operation
°C
Over 230
°C
180
°C
150
°C
Pre Heating Zone
70 °C, 0.125 W, 1000 h
−55
°C, 2 h
125 °C, 250 h
85 °C, 60 s
90
±
30 s
30
±
10 s
Heating time
Soldering Zone
High temp. exposure
Immersion seal
Reflow : two times maximum
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.)
Manual soldering：350
±
10 °C, 3 ~ 4 s
[
Δ
R/R
≦
1 %]
Δ
R/R：Change in total resistance
S.S.
：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.
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
ST-32
■
MAXIMUM INPUT RATINGS
Nominal resistance
Maximum input
Resistance code
values (Ω)
voltage (V)
A
A
10
20
50
100
200
300
500
1k
2k
3k
5k
10 k
20 k
30 k
50 k
100 k
200 k
500 k
1M
2M
11
21
51
12
22
32
52
13
23
33
53
14
24
34
54
15
25
55
16
26
1.00
1.58
2.50
3.53
5.00
6.12
7.91
11.2
15.8
19.4
25.0
35.4
50.0
61.2
79.1
112
158
200
200
200
Maximum wiper
current (mA)
100
79.1
50.0
35.4
25.0
20.4
15.8
11.2
7.91
6.45
5.00
3.54
2.50
2.04
1.58
1.12
0.79
0.40
0.20
0.10
The products indicated by
A
mark are manufactured upon
receipt of order basis.
■
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
●
ST-32EA, EG
1.6
●
ST-32EB, EH
(Unit : mm)
1.6
1.5
4.6
0
1
0.9
1.2
1.2
0.8
3.2
1.2
For reflow soldering
1.2
0.8
3.2
1.2
Note) The zero point is the center of mounting.
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
1.9
1
6
0
0.9
2.2
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
ST-32
■
OUTLINE DIMENSIONS
●
ST-32EA
Top adjustment
Cross slot for a 0 bit driver, depth : 0.45
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
1.5
0.5
0.6
Unless otherwise specified, tolerance :
±
0.3 (Unit : mm)
1
2
3
CW rotation
※
Note the terminal position.
2
1
3.4
1.9
3.5
0.05
3
3.4
1
Resistance code 2 digits
2
t = 0.12
2.1
2 – 0.7
●
ST-32EB
Top adjustment
Cross slot for a 0 bit driver, depth : 0.45
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
2
1.5
0.5
1
3.4
1.9
4.4
0.05
3
3.4
1
Resistance code 2 digits
2
t = 0.12
2.1
2 – 0.7
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
2
2
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
ST-32
■外½寸法図
OUTLINE DIMENSIONS
●
ST-32EG
Side adjustment
Cross slot for a 0 bit driver, depth : 0.45
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
3.6
1.5
0.5
3.5
0.2
Unless otherwise specified, tolerance :
±
0.3 (Unit : mm)
1
2
3
CW rotation
※
Note the terminal position.
Adjustment
3
2.4
2 – 0.6
1
4.7
2.6
1.9
Resistance code 2 digits
t = 0.12
1
2
●
ST-32EH
Side adjustment
Cross slot for a 0 bit driver, depth : 0.45
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
3
3.5
0.2
Adjustment
2.4
2 – 0.6
1
3.6
1.5
0.5
4.7
2.6
1.9
t = 0.12
Resistance code 2 digits
1
2
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
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