SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN)
● RoHS compliant
● Wide variety (7 types) to choose from
● Automatic mounting is possible (Taping)
● Flow/reflow soldering is possible
● Sealed construction (Washable: Refer to A-328)
● Stopper structure prevents terminal pin from being open.
● Cross slot rotor suitable for automatic adjustment
■
FEATURES
Part name Material Flammability
1
2
3
4
5
6
7
8
9
Wiper
Cover
Housing
Terminal pin
Base element
“O” ring
Rotor
Electrode
Resistive element
Multi metal alloy
—
Stainless steel (SUS 304)
Epoxy UL-94V-0
Copper alloy, Sn-Cu-plated
—
Ceramic
Silicone rubber UL-94HB
Polyphenylenesulphide UL-94V-0
Ag-Pd cermet
—
RuO2cermet
INTERNAL STRUCTURE
■
PART NUMBER DESIGNATION
※Please refer to the LIST OF PART NUMBERS when placing orders.
S T - 4 E T A 2 0 0 Ω( 2 0 1 )
Series name (minus slot)
Form of packaging
T：Taping (Reel)
Blank：Bulk in plastic bag
Terminal pin
E：Sn-Cu (Lead-free)
Form of packaging
T：Taping (Reel)
Blank：Bulk in plastic bag
Terminal pin
E：Sn-Cu (Lead-free)
Resistance code
Resistance value
Product shape (Shape of terminal)
A, G：J-hook
B, D, H：Gull wing
C, F：Through hole pins
S T - 4 2 E T A 2 0 0 Ω( 2 0 1 )
Series name (cross slot) Resistance code
Resistance value
Product shape (Shape of terminal)
A, G：J-hook
B, D, H：Gull wing
C, F：Through hole pins
ST-4
1
6
8
4
3
9
5
7
2
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
Nominal resistance range
ST-4
SURFACE MOUNT TRIMMERS
：
Not manufactured
※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.
※Cross slot available : ST-42E¤
■
LIST OF PART NUMBERS
Adjustment
position
Top
adjustment
Rear
adjustment
Side
adjustment
Pieces in package
Shape of terminal
A (J-hook)
B (Gull wing)
C (
Through hole pins
)
D (Gull wing)
F (
Through hole pins
)
G (J-hook)
H (Gull wing)
Form of packaging
Taping (reel)
ST-4/42ETA ST-4/42EA
ST-4/42ETB ST-4/42EB
ST-4/42EC
A ST-4/42ETD A ST-4/42ED
A ST-4/42EF
ST-4/42ETG ST-4/42EG
ST-4/42ETH ST-4/42EH
Plastic bag
500 pcs./reel 100 pcs./pack
A
印の型式、公称抵抗値は受注生産となります。
The products indicated by A mark are manufactured upon receipt of order basis.
※C slot : ST-4E
□
,B slot : ST-42E
□
〈
Nominal resistance values
〉
A10 ΩA20 Ω50 Ω100 Ω200 Ω500 Ω1 kΩ2 kΩ5 kΩ
10 kΩ20 kΩ50 kΩ100 kΩ200 kΩ500 kΩ1 MΩ2 MΩ
Δ
R/R：Change in total resistance
S.S. ：Setting stability
■
ELECTRICAL CHARACTERISTICS
■
MECHANICAL CHARACTERISTICS
10 Ω~ 2 MΩ
±20 %
0.25 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. 0.12 g (ST-4EA, EB, EC, ED, EF)
Approx. 0.22 g (ST-4EG, 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
Mechanical angle 240° (1 turn)
10 mN·m {102 gf·cm} maximum
30 mN·m {306 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
Operating torque
Stop strength
Rotational life
Thrust to rotor
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
■
ENVIRONMENTAL CHARACTERISTICS
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, 0.25 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
{ }
：
Reference only
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
2
222
1.6 1.6
2.35
0
2
242
1.6 1.6
2.35
0
2
5.6
1.6 1.6
2.35
0
1.5 1.5
2
2
1.6 1.6
2.35
0
2.5
0.3 0.8
2
2.8
1.6 1.6
2.35
0
3.3
0.3 0.8
■
MAXIMUM INPUT RATINGS
Nominal resistance values (Ω)Resistance code Maximum input voltage (V) Maximum wiper current (mA)
A10 100 1.00 100
A20 200 2.00 100
50 500 3.53 70.7
100 101 5.00 50.0
200 201 7.07 35.4
500 501 11.2 22.4
1 k 102 15.8 15.8
2 k 202 22.4 11.2
5 k 502 35.4 7.07
10 k 103 50.0 5.00
20 k 203 70.7 3.54
50 k 503 112 2.24
100 k 104 158 1.58
200 k 204 200 1.00
500 k 504 200 0.40
1 M 105 200 0.20
2 M 205 200 0.10
■
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
(Unit: mm)
● ST-4EA
● ST-4EG ● ST-4EH
● ST-4EB ● ST-4ED
Note) The zero point is the center of mounting.
The products indicated by A
mark are manufactured upon
receipt of order basis.
ST-4
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
ST-4
SURFACE MOUNT TRIMMERS
■
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±0.3 (Unit: mm)
● ST-4EA
Top adjustment
● ST-4EB
Top adjustment
● ST-4EC
Top adjustment
※
Note the terminal position.
20.6 W × 2.3 L × 0.5 D
Resistance code &
Production date code
Lead-free Identification mark
5
4.5
2.3
t=0.15
1.2
2.35
2 – 0.8
5.2 0
– 0.5
3
31
5
4.5
2.3
6.2
0.35 min. 0.35 min.
1.2
2.35
2 – 0.8
2Resistance code &
Production date code
t=0.15
31
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
5
4.5
4±1
3 – 0.6
2.54
5
2Resistance code &
Production date code
t=0.15
312.3
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
CW rotation
1
2
3
● ST-4EG
Side adjustment
5
3.1
5.7+ 0.4
0
4.5
2.35
2 – 0.8
1.2
1.45
(2.1)
0.95
2
Resistance code &
Production date code
t=0.15
3
1
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
■
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-4EF
Rear adjustment
● ST-4EH
Side adjustment
● ST-4ED
Rear adjustment
※
Note the terminal position.
＜
Semi-standard products
＞
＜
Semi-standard products
＞
5
4.5
2.3
1.2
2.35
2 – 0.8
7.2
0.50.5
2.8
2Resistance code &
Production date code
t=0.15
31
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
5
4.5
2.3
3 – 0.6
2.54
6.35
2.5±0.5
2Resistance code &
Production date code
t=0.15
31
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
● ST-42E
CROSS SLOT DIMENSION
0.6 W × 2.3 L × 0.5 D
Cross slot screwdriver 0 bit : 0.8 D
5
3.1
5.7+ 0.4
0
4.5
2.35
2 – 0.8
1.2
6.1
0.8 2
Resistance code &
Production date code
t=0.15
31
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
CW rotation
1
2
3
ST-4
SURFACE MOUNT TRIMMERS
■
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±0.3 (Unit: mm)
■
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-4ETA, ETB and ETD versions are boxed with 4 reels
(2000 pcs.).
ST-4ETG and 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 dia-
grams below.
● EMBOSSED TAPE DIMENSIONS
● REEL DIMENSIONS
（Conforms to JIS C 0806-3）
（In accordance with EIAJ ET-7200A）
(Unit: mm)
● ST-4ETA/ETB/ETD
● ST-4ETG/ETH
Empty Filled Empty
40 mm min. 20 pitches min.
400 mm min.
Direction of feed
Head
End
Leader
180 (ST-4ETA/ETB/ETD)
254 ± 2 (ST-4ETG/ETH)
21±0.8
13±0.2
2±0.5
13 (ETA/ETB)
0
–1.5
+1
0
13.4±1(ETG/ETH)
15.4±1 (ETA/ETB/ETD)
17.4±1 (ETG/ETH)
60 (TA/TB)
+1
0
50 min.(TG/TH)
1.75±0.15.5±0.05
12
Direction of feed
0.3±0.1
8±0.1
4±0.12±0.05
φ
1.5
φ
1.5
+0.1
0
2.7 (ST-4ETA/ETB)
3.4 (ST-4ETD)
Installation example
(ST-4EA)
Lead-free Identification mark
φ
1.5
+0.1
0
2±0.1 4±0.1
8±0.1
0.3±0.1
1.75±0.15.5±0.1
12
6.4
Installation example
(ST-4EG)
Direction of feed
ST-4
SURFACE MOUNT TRIMMERS
