※Please refer to the LIST OF PART NUMBERS when placing orders.
ST-32
SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN)
Part name
1
2
3
4
5
6
7
8
9
Rotor
Terminal pin
Wiper
Base element
“O” ring
Cover
Housing
Material
Flammability
—
UL-94V-0
—
UL-94HB
UL-94V-0
—
Ag-Pd cermet
RuO2cermet
Stainless steel (SUS 304)
Epoxy
Copper alloy, Sn-Cu-plated
Ceramic
Silicone rubber
Polyphenylenesulphide
Electrode
Resistive element
Multi metal alloy
■
FEATURES
● RoHS compliant
● Rotor with a cross slot for ease of adjustment
● 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)
■
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)
Form of packaging
T：Taping (Reel)
Blank：Bulk in plastic bag
Resistance code
Resistance value
Product shape (Shape of terminal)
A,G：J-hook
B,H：Gull wing
INTERNAL STRUCTURE
2
3
4
9
8
5
6
7
1
RoHS compliant
ɷ Specifications are subject to chan
g
e without notice.
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
ST-32
SURFACE MOUNT TRIMMERS
■
LIST OF PART NUMBERS
Shape of
terminal
Form of packaging
Taping (reel)
ST-32ETA ST-32EA
ST-32ETB ST-32EB
ST-32ETG ST-32EG
ST-32ETH ST-32EH
500 pcs./reel 100 pcs./pack
Plastic bag
Pieces in package
■
ELECTRICAL CHARACTERISTICS
Nominal resistance range 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 MΩminimum (DC500 V)
AC500 V, 60 s
Approx. 0.05 g (ST-32EA, EB)
Approx. 0.11 g (ST-32EG, EH)
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
Adjustment
position
Top
adjustment
A(J-hook)
B(
Gull wing
)
G(J-hook)
H(
Gull wing
)
Side
adjustment
Δ
R/R：Change in total resistance
S.S. ：Setting stability
〈
Nominal resistance values
〉
A10 ΩA20 Ω50 Ω100 Ω200 Ω300 Ω500 Ω
1 kΩ2 kΩ3 kΩ5 kΩ10 kΩ20 kΩ30 kΩ
50 kΩ100 kΩ200 kΩ500 kΩ1 MΩ2 MΩ
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.
■
MECHANICAL CHARA CTERISTICS
Mechanical angle 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
{ }
：
Reference only
Operating torque
Stop strength
Rotational life
Thrust to rotor
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
■
ENVIR ONMENTAL CHARA CTERISTICS
Test item Test conditions Specifications
Thermal shock −65 ~ 125 °C (0.5 h), 5 cycles [
Δ
R/R ≦2 %]
[S.S. ≦1 %]
Humidity
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[
Δ
R/R ≦2 %]
Shock 981 m/s2, 6 ms
6 directions for 3 times each [
Δ
R/R ≦1 %]
[S.S. ≦1 %]
Vibration
Amplitude 1.52 mm or
Acceleration 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
Load life 70 °C, 0.125 W, 1000 h [
Δ
R/R ≦3 %]
[S.S. ≦1 %]
Low temp. operation
−55 °C, 2 h [
Δ
R/R ≦2 %]
[S.S. ≦2 %]
High temp. exposure
125 °C, 250 h [
Δ
R/R ≦3 %]
[S.S. ≦2 %]
Immersion seal 85 °C, 60 s
No leaks (No continuous bubbles)
Soldering heat [
Δ
R/R ≦1 %]
Fig.1
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
Temperature
°C
+5
0
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
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
ST-32
SURFACE MOUNT TRIMMERS
■
MAXIMUM INPUT RATINGS
■
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
Nominal resistance
values (Ω)
Resistance code Maximum input
voltage (V)
Maximum wiper
current (mA)
A10 11 1.00 100
A20 21 1.58 79.1
50 51 2.50 50.0
100 12 3.53 35.4
200 22 5.00 25.0
300 32 6.12 20.4
500 52 7.91 15.8
1 k 13 11.2 11.2
2 k 23 15.8 7.91
3 k 33 19.4 6.45
5 k 53 25.0 5.00
10 k 14 35.4 3.54
20 k 24 50.0 2.50
30 k 34 61.2 2.04
50 k 54 79.1 1.58
100 k 15 112 1.12
200 k 25 158 0.79
500 k 55 200 0.40
1 M 16 200 0.20
2 M 26 200 0.10
(Unit : mm)
● ST-32EA, EG ● ST-32EB, EH
Note) The zero point is the center of mounting.
For reflow soldering
The products indicated by A mark are manufactured upon
receipt of order basis.
1.2 0.8
3.2
1.2
0
1.6
1.50.9
4.6
11.2
1.2 0.8
3.2
1.2
0
1.6
2.20.9
6
11.9
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
■
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±0.3 (Unit : mm)
● ST-32EA
Top adjustment
※
Note the terminal position.
1.5
2
0.5
3.4
1.9
3.5
2
3.4 2 2.1
0.05 2 – 0.7
1
3
Cross slot for a 0 bit driver, depth : 0.45
Resistance code 2 digits
t = 0.12
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
0.6
1
● ST-32EB
Top adjustment
1.5
2
0.5
3.4
1.9
4.4
2
3.4 2 2.1
0.05 2 – 0.7
1
3
Cross slot for a 0 bit driver, depth : 0.45
Resistance code 2 digits
1
t = 0.12
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
CW rotation
1
2
3
ST-32
SURFACE MOUNT TRIMMERS
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
■外形寸法図
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±0.3 (Unit : mm)
● ST-32EG
Side adjustment
※
Note the terminal position.
1.5
0.5
4.7
1.9
2.6
3.6
Cross slot for a 0 bit driver, depth : 0.45
Resistance code 2 digits
Adjustment
0.2
3.5 2.4
1
1.1 1.7 1
2 – 0.6
31
2
t = 0.12
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
● ST-32EH
Side adjustment
1.5
0.5
4.7
1.9
2.6
3.6
Cross slot for a 0 bit driver, depth : 0.45
Resistance code 2 digits
Adjustment
0.2
3.5
2.4
1
1.3 1.7 1.4
2 – 0.6
31
2
t = 0.12
Production date code & Lead-free Identification mark
1 digit (Location reversed every 2 years)
CW rotation
1
2
3
ST-32
SURFACE MOUNT TRIMMERS
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELEC
T
R
O
NIC
S
<Bulk pack specifications>
● Unit of bulk in a plastic bag is 100 pcs. per pack.
● Boxing of bulk in a plastic bag is performed with 500
pcs. per box.
■
PACKAGING SPECIFICATIONS
<Taping packaging specifications>
● Taping version is packaged in 500 pcs. per reel.
Orders will be accepted for units of 500 pcs., i.e., 500,
1000, 1500 pcs., etc.
● ST-32ETA, ETB versions are boxed with 4 reels (2000
pcs.). ST-32ETG, ETH versions are boxed with one reel
(500 pcs.).
Maximum number of consecutive missing pieces = 2
Leader length and reel dimension are shown in the
diagrams below.
● EMBOSSED TAPE DIMENSIONS
● REEL DIMENSIONS
（Conforms to JIS C 0806-3）
（In accordance with EIAJ ET-7200A）
(Unit: mm)
● ST-32ETA, ETB
13.4±1 (ETG/ETH)
17.4±1 (ETG/ETH)
15.4±1 (ETA/ETB)
13 (ETA/ETB)
+1
0
(ETA/ETB)
+1
0
180 0
–1.5
(ST-32ETA/ETB)
21±0.8
13±0.2
2±0.5
60
φ
φ
φ
254±2
(ST-32ETG/ETH)
φ
φ
(ETG/ETH)
50 min.
φ
2
4±0.1 2±0.05
1.75±0.1
5.5±0.05
12
1.5 +0.1
0
8±0.1
1
3
0.3±0.1
2.5
Installation example
(ST-32EA)
φ
Direction of feed
● ST-32ETG, ETH
2
4±0.1
2±0.1
1.75±0.1
5.5±0.1
12
1.5 +0.1
0
8±0.1
1
3
0.4±0.1
5.5 max.
Installation example
(ST-32EH)
φ
Direction of feed
ST-32
SURFACE MOUNT TRIMMERS
Empty Filled Empty
40 mm min. 20 pitches min.
400 mm min.
Direction of feed
Head
End
Leader
