ST-32 Series Datasheet by Nidec Copal Electronics

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SURFACE MOUNT BEBMET TBIMMEBMSINELE TURN) ST- 3 2 RoHS com -liant Lammmgluz
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
UL94V-0
UL94HB
UL94V-0
Ag-Pd cermet
RuO2 cermet
Stainless steel (SUS 304)
Epoxy
Copper alloy, Sn-Cu-plated
Ceramic
Silicone rubber
Polyphenylenesulphide
Electrode
Resistive element
Multi metal alloy
FEATURES
ORoHS compliant
ORotor with a cross slot for ease of adjustment
O Leaded terminals provide strong as adhesive strength
against P.C.B. bending
OJ-hook, Gull wing and leaded terminal configurations
OSealed (Washable: Refer to page 698.)
PART NUMBER DESIGNATION
S T - 3 2 E T A 1 0 0 Ω ( 1 2 )
Series name
Terminal pin
ESn-Cu (Lead-free)
Form of packaging
TTaping (Reel)
BlankBulk 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
rux, 0.1 ‘ STazEG EH 7 65 ~125 50 {0,5 m, 5 cyc‘e u « 2mm: Hz 3 dwecmns mmes eac
Adjustment
position
J-hook
J-hook
Gull wing
Gull wing
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 M Ω
± 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 M
Ω
: ± 100 10-6/°C maximum
1000 M
Ω
minimum (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
Top
adjustment
A (
B (
)
)
Side
adjustment
G (
H (
)
)
ΔR/RChange in total resistance
S.S. Setting stability
Nominal resistance values
A 10
Ω
A 20
Ω
50
Ω
100
Ω
200
Ω
300
Ω
500
Ω
1 k
Ω
2 k
Ω
3 k
Ω
5 k
Ω
10 k
Ω
20 k
Ω
30 k
Ω
50 k
Ω
100 k
Ω
200 k
Ω
500 k
Ω
1 M
Ω
2 M
Ω
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 com bi na tion 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 CHARACTERISTICS
Mechanical angle 250 ° (1 turn)
5 mN·m {51 gf·cm} maximum
20 mN·m {204 gf·cm} minimum
100 cycles [ ΔR/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
ENVIRONMENTAL CHARACTERISTICS
Test item Test conditions Specifications
Thermal shock 65 ~ 125 °C (0.5 h), 5 cycles [ΔR/R 2 %]
[S.S. 1 %]
Humidity
10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[ΔR/R 2 %]
Shock 981 m/s2, 6 ms
6 directions for 3 times each [ΔR/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 [ΔR/R 3 %]
[S.S. 1 %]
Low temp. operation
55 °C, 2 h [ΔR/R 2 %]
[S.S. 2 %]
High temp. exposure
125 °C, 250 h [ΔR/R 3 %]
[S.S. 2 %]
Immersion seal 85 °C, 60 s
No leaks (No continuous
bubbles)
Soldering heat [ ΔR/R 1 %]
Fig.1
Reflow profile for soldering heat evaluation
Reflow : two times maximum
Peak : 250
Over 230
Pre Heating Zone
180
()
250
200
150
100
50
150
90 30 s
30 10 s
Soldering Zone
Heating time
Temperature
+5
0
Flow :
260 ± 3 °C as the temperature in a
pot of molten solder, immer sion from head of
ter minal 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 soldering350 ± 10 °C, 3 ~ 4 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)
A
10 11 1.00 100
A
20 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)
OST-32EA, EG O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
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm)
O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
O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
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm)
OST-32EG
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
1.1 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)
O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
Note the terminal position.
7—H—?—H—\ °IJ°D n°n°a ‘1“ Gaol] DUDE
<Bulk pack specifications>
OUnit of bulk in a plastic bag is 100 pcs. per pack.
O Boxing of bulk in a plastic bag is performed with 500
pcs. per box.
PACKAGING SPECIFICATIONS
Maximum number of consecutive missing pieces = 2
Leader length and reel dimension are shown in the
diagrams below.
<Taping packaging specifications>
O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.
O ST-32ETA, ETB versions are boxed with 4 reels (2000
pcs.). ST-32ETG, ETH versions are boxed with one reel
(500 pcs.).
OEMBOSSED TAPE DIMENSIONS OREEL DIMENSIONS
Conforms to JIS C 0806-3
In accordance with EIAJ ET-7200A
(Unit: mm)
O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)
Direction of feed
O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)
Direction of feed
ST-32
SURFACE MOUNT TRIMMERS
Empty Filled Empty
40 mm min. 20 pitches min.
400 mm min.
Direction of feed
HeadEnd
Leader

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