ST-4
Vishay
Surface Mount Cermet Trimmers (single turn)
FEATURES
•
•
•
•
•
•
•
•
Lead (Pb)-free soldering, Cadmium-free
Wide variety (7 types) to choose from
Automatic mounting is possible (Taping)
Flow/reflow soldering is possible
Sealed construction (Washable)
Stopper structure prevents terminal pin from being open
Cross slot totor suitable for automatic adjustment
RoHS compliant
DIMENSIONS
in millimeters
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
(Unit: mm)
ST-4A, 4EA
2
ST-4B, 4EB
2
ST-4D, 4ED
2
2
2
2
2
2
4
0
0
0
1.6
2.35
1.6
1.6
2.35
1.6
1.6
2.35
1.6
ST-4G, 4EG
2
ST-4H, 4EH
2
0 .
8
2
0 .
8
0
0 .3
2 .5
0 .3
0
3 .3
2 .
8
1.6
1.6
2.35
Note)
The zero point is the center of mounting.
1.6
1.6
2.35
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be
submitted upon request.
www.vishay.com
1
For technical questions contact: copalsupport@vishay.com
Document Number: 58010
Revision: 06-Mar-06
1 .5
5 .6
1 .5
ST-4
Surface Mount Cermet Trimmers (single turn)
Vishay
DIMENSIONS
in millimeters
OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
1
3
CW rotation
ST-4A, 4EA
Top adjustment
0.6
W
× 2.3 L× 0.5 D
2
Resistance code & Production date code
2
* :
Note
the terminal position.
1.2
0
5.2
– 0.5
4.5
Lead (Pb)-free Identification mark
t = 0.15
2 - 0.8
2.35
3
5
1
2.3
0.6
W
× 2.3 L× 0.5 D
2
Resistance code & Production date code
0.35 min.
ST-4B, 4EB
Top adjustment
1.2
4.5
Lead (Pb)-free Identification mark
0.35 min.
6.2
2 - 0.8
2.35
3
5
1
t = 0.15
2.3
ST-4C, 4EC
Top adjustment
0.6
W
× 2.3 L× 0.5 D
2
Resistance code & Production date code
3 - 0.6
4.5
Lead (Pb)-free Identification mark
3
5
1
2.3
t = 0.15
4±1
2.54
ST-4G, 4EG
Side adjustment
0.6
W
× 2.3 L × 0.5 D
5
4.5
3
0
5.7
+ 0.4
3.1
1.45
Resistance code & Production date code
2 - 0.8
2.35
5
1
Lead-free Identification mark
(2.1)
2
1.2
t = 0.15
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be
submitted upon request.
Document Number: 58010
Revision: 06-Mar-06
For technical questions contact: copalsupport@vishay.com
www.vishay.com
2
0.95
3
ST-4
Vishay
Surface Mount Cermet Trimmers (single turn)
DIMENSIONS
in millimeters
OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
1
3
CW rotation
ST-4H, 4EH
Side adjustment
0.6
W
× 2.3 L × 0.5 D
Resistance code & Production date code
2
* :
Note
the terminal position.
2.35
4.5
2 - 0.8
3
1
5
0
5.7
+ 0.4
3.1
Lead (Pb)-free Identification mark
0.8
6.1
t = 0.15
2
1.2
ST-4D, 4ED
Rear adjustment
0.6
W
× 2.3 L× 0.5 D
2
<Semi-standard products>
1.2
0.5
Resistance code & Production date code
4.5
Lead (Pb)-free Identification mark
0.5
7.2
2 - 0.8
2.3
2.8
t = 0.15
3
5
1
2.35
ST-4F, 4EF
Rear adjustment
0.6
W
× 2.3 L × 0.5 D
2
<Semi-standard products>
3 - 0.6
Resistance code & Production date code
Lead (Pb)-free Identification mark
3
5
1
2.5 ± 0.5
2.3
t = 0.15
2.54
ST-42, 42E
CROSS SLOT DIMENSION
0.6
W
× 2.3 L × 0.5 D
Cross slot screwdriver 0
bit:
0.8 D
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be
submitted upon request.
www.vishay.com
3
For technical questions contact: copalsupport@vishay.com
Document Number: 58010
Revision: 06-Mar-06
6.35
4.5
ST-4
Surface Mount Cermet Trimmers (single turn)
Vishay
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-4TA, TB, TD, ETA, ETB and ETD
versions
are
boxed with
4 reels (2000 pcs.).
ST-4TG, TH, ETG 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)
Empty
Filled
Empty
+1
(Unit: mm)
13
0
(TA/TB/ETA/ETB)
13.4 ± 1 (TG/TH/ETG/ETH)
Ø 21 ± 0.8
End
Head
40 mm min.
Ø 13 ± 0.2
Ø
180
-1.5
(ST-4TA/TB/TD/ETA/ETB/ETD)
Ø
254 ± 2 (ST-4TG/TH/ETG/ETH)
0
15.4 ± 1(TA/TB/TD/ETA/ETB/ETD)
17.4 ± 1 (TG/TH/ETG/ETH)
ST-4TA/TB/TD/ETA/ETB/ETD
1.75 ± 0.1
Ø 1.5
8
± 0.1
2 ± 0.05
4 ± 0.1
Ø 1.5
+0.1
0
ST-4TG/TH/ETG/ETH
8
± 0.1
0.3 ± 0.1
2 ± 0.1
1.5
4 ± 0.1
1.75 ± 0.1
0.3 ± 0.1
+1
Direction of feed
20 pitches min.
Leader
400 mm min.
2 ± 0.5
60
0
(TA/TB)
8
0 ± 1(TG/TH)
Installation example
(ST-4G/EG)
5.5 ± 0.05
5.5 ± 0.1
Installation example
(ST-4A/EA)
12
Lead (Pb)-free Identification mark
12
Direction of feed
2.7 (ST-4TA/TB/ETA/ETB)
3.4 (ST-4TD/ETD)
Ø
+0
0 .1
Direction of feed
6.4
Vinyl bag
packaging specifications
· Unit of
bulk
in
vinyl bag
packaging is 100 pcs. per pack.
· Boxing of
bulk
in
vinyl bags
is performed
with
500 pcs. per
box.
Document Number: 58010
Revision: 06-Mar-06
For technical questions contact: copalsupport@vishay.com
www.vishay.com
4
ST-4
Vishay
Surface Mount Cermet Trimmers (single turn)
MECHANICAL SPECIFICATIONS
Mechanical angle
Operating torque
Stop strength
Rotational life
Thrust to rotor
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
240° (1 turn)
10 mN m {102 gf cm} maximum
30 mN m {306 gf cm} minimum
100 cycles [ΔR/R
≤ ± (2 Ω
+ 3 %]
5 N {0.51 kgf} minimum
Sn-Pb: 235
°C,
2 s
Sn-Cu (Lead (Pb)-free): 245 ± 3
°C,
2
∼
3s
5 N {0.51 kgf} 10 s
Width 90 mm, bend 3 mm, 5 s, 1 time
5 N {0.51 kgf} 10 s
ENVIRONMENTAL SPECIFICATIONS
Test item
Thermal shock
Test conditions
- 65
∼
125
°C
(0.5 h),
5 cycles
- 10
∼
65
°C
(Relative
humidity 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
70
°C,
0.25 W, 1000 h
- 55
°C,
2 h
[ΔR/R
≤
1%]
[S.S.
≤
1 %]
[ΔR/R
≤
3 %]
[S.S.
≤
1 %]
[ΔR/R
≤
2 %]
[S.S.
≤
2 %]
[ΔR/R
≤
3 %]
[S.S.
≤
2 %]
No leaks (No
continuous bubbles)
Specifications
[ΔR/R
≤
2 %]
[S.S.
≤
1 %]
[ΔR/R
≤
2 %]
Humidity
Shock
Vibration
ELECTRICAL SPECIFICATIONS
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
±
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 ∼
2MΩ: ± 100 10
-6
/°C maximum
1000 MΩ minimum (DC500 V)
AC500 V, 60 s
Approx. 0.12 g (ST-4A, B, C, D, F, EA,
EB, EC, ED, EF)
Approx. 0.22 g (ST-4G, H, EG, EH)
Load Life
Low
temperature
operation
High
temperature
exposure
Immersion seal
125
°C,
250 h
85
°C,
60 s
Sn-Pb
260
°C,
10 s or 215
°C,
35 s
Sn-Cu
Flow: 260
°C
± 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
Soldering heat
[ΔR/R
≤
1 %]
Reflow profile for soldering heat evolution
(°C)
250
Temperat
u
re
200
150
100
50
Peak : 250
0
°C
Over 230 °C
180°C
150°C
90 ± 30 s
30 ± 10 s
Heating time
Soldering Zone
Pre Heating Zone
+5
Reflow : two times maximum
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5
For technical questions contact: copalsupport@vishay.com
Document Number: 58010
Revision: 06-Mar-06
