www.vishay.com For technical questions contact: copalsupport@vishay.com Document Number: 58010
1Revision: 06-Mar-06
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
2
222
1.6 1.6
2.35
0
2
242
1.6 1.6
2.35
0
2
6
.
5
1.6 1.6
2.35
0
5
.
15.1
(Unit: mm)
ST-4A, 4EA
ST-4G, 4EG ST-4H, 4EH
ST-4B, 4EB ST-4D, 4ED
2
2
1.6 1.6
2.35
0
5
.
2
8
.
03.0
2
8.
2
1.6 1.6
2.35
0
3
.3
8.03.0
Note) The zero point is the center of mounting.
DIMENSIONS in millimeters
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will b
e
submitted upon request.
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
Document Number: 58010 For technical questions contact: copalsupport@vishay.com www.vishay.com
Revision: 06-Mar-06 2
ST-4
Surface Mount Cermet Trimmers (single turn) Vishay
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
ST-4A, 4EA
Top adjustment
ST-4B, 4EB
Top adjustment
ST-4C, 4EC
Top adjustment
*: Note the terminal position.
20.6 W × 2.3 L × 0.5 D
Resistance code & Production date code
Lead (Pb)-free Identification mark
5
5.4
2.3
t = 0.15
1.2
2.35
2 - 0.8
2.5
05.0
3
31
5
5.4
2.3
2.6
.n
i
m
53
.0.nim 53.0
1.2
2.35
2 - 0.8
2
Resistance code & Production date code
t = 0.15
31
0.6 W × 2.3 L × 0.5 D
5
5
.
4
4 ± 1
3 - 0.6
2.54
5
2
Resistance code & Production date code
t = 0.15
312.3
0.6 W × 2.3 L × 0.5 D
Lead (Pb)-free Identification mark
CW rotation
1
2
3
ST-4G, 4EG
Side adjustment
5
1.3
7
.5 4
.
0
+0
4.5
2.35
2 - 0.8
1.2
54
.1
)
1
.2
(
59.0
2
Resistance code & Production date code
t = 0.15
3
1
0.6 W × 2.3 L × 0.5 D
Lead-free Identification mark
Lead (Pb)-free Identification mark
DIMENSIONS in millimeters
OUTLINE DIMENSIONS
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 For technical questions contact: copalsupport@vishay.com Document Number: 58010
3Revision: 06-Mar-06
ST-4
Vishay Surface Mount Cermet Trimmers (single turn)
ST-4F, 4EF
Rear adjustment
ST-4H, 4EH
Side adjustment
ST-4D, 4ED
Rear adjustment
*: Note the terminal position.
<Semi-standard products>
<Semi-standard products>
5
5
.4
2.3
1.2
2.35
2 - 0.8
2
.7
5
.0
5.
0
2.8
2Resistance code & Production date code
t = 0.15
31
0.6 W × 2.3 L × 0.5 D
5
5
.4
2.3
3 - 0.6
2.54
53.6
2.5 ± 0.5
2Resistance code & Production date code
t = 0.15
31
0.6 W × 2.3 L × 0.5 D
ST-42, 42E
CROSS SLOT DIMENSION
0.6 W × 2.3 L × 0.5 D
Cross slot screwdriver 0 bit: 0.8 D
5
1.3
7.5 4.0+0
4.5
2.35
2 - 0.8
1.2
6.1
0.82
Resistance code & Production date code
t = 0.15
31
0.6 W × 2.3 L × 0.5 D
Lead (Pb)-free Identification mark
CW rotation
1
2
3
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
Lead (Pb)-free Identification mark
Lead (Pb)-free Identification mark
OUTLINE DIMENSIONS
DIMENSIONS in millimeters
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 For technical questions contact: copalsupport@vishay.com www.vishay.com
Revision: 06-Mar-06 4
ST-4
Surface Mount Cermet Trimmers (single turn) Vishay
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.
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)
(Unit: mm)
ST-4TA/TB/TD/ETA/ETB/ETD ST-4TG/TH/ETG/ETH
Empty Filled Empty
40 mm min. 20 pitches min.
Direction of feed
HeadEnd
Leader 400 mm min.
180
(ST-4TA/TB/TD/ETA/ETB/ETD)
254 ± 2
(ST-4TG/TH/ETG/ETH)
Ø 21 ± 0.82 ± 0.5
13 (TA/TB/ETA/ETB)
0
-1.5
+1
0
13.4 ± 1 (TG/TH/ETG/ETH)
15.4 ± 1
(TA/TB/TD/ETA/ETB/ETD)
17.4 ± 1 (TG/TH/ETG/ETH)
)BT/AT(06 1+
0
0
8±1)HT/GT(
57.1 ± 0.1
5. 50.0
21
Direction of feed
0.3 ± 0.1
8± 0.1
4 ± 0.12 ± 0.05 1.5
1.5
+0.1
0
2.7 (ST-4TA/TB/ETA/ETB)
3.4 (ST-4TD/ETD)
Installation example
(ST-4A/EA)
Lead (Pb)-free Identification mark
1
.
2 ± 0.1 4 ± 0.1
8 ± 0.1
0.3 ± 0.1
57.1 ± 0.15.5
21
6.4
Installation example
(ST-4G/EG)
Direction of feed
Ø 13 ± 0.2
Ø
Ø
5
.1 0
+0
Ø
± 0.1
Ø
Ø
PACKAGING SPECIFICATIONS
www.vishay.com For technical questions contact: copalsupport@vishay.com Document Number: 58010
5Revision: 06-Mar-06
ST-4
Vishay Surface Mount Cermet Trimmers (single turn)
MECHANICAL SPECIFICATIONS
Mechanical angle 240° (1 turn)
Operating torque 10 mN m {102 gf cm} maximum
Stop strength 30 mN m {306 gf cm} minimum
Rotational life 100 cycles [ΔR/R ≤ ± (2 Ω + 3 %]
Thrust to rotor 5 N {0.51 kgf} minimum
Solderability
Sn-Pb: 235 °C, 2 s
Sn-Cu (Lead (Pb)-free): 245 ± 3 °C, 2
3 s
Shear (Adhesion) 5 N {0.51 kgf} 10 s
Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time
Pull-off strength 5 N {0.51 kgf} 10 s
ELECTRICAL SPECIFICATIONS
Nominal resistance
range 10 Ω 2 MΩ
Resistance tolerance ± 20 %
Power ratings 0.25 W (70 °C) 0 W (125 °C)
Resistance law Linear law (B)
Maximum input
voltage
DC200 V or power rating, whichever is
smaller
Maximum wiper
current
100 mA or power rating, whichever is
smaller
Effective electrical turn 210° (1 turn)
End resistance 1 % or 2 Ω, whichever is greater
C.R.V. 1 % or 3 Ω, whichever is greater
Operating temp. range - 55 125 °C
Temp. coefficient 10 Ω ∼ 50 Ω: ± 250 10-6 /°C maximum
100 Ω 2MΩ: ± 100 10-6 /°C maximum
Insulation resistance 1000 MΩ minimum (DC500 V)
Dielectric strength AC500 V, 60 s
Net weight
Approx. 0.12 g (ST-4A, B, C, D, F, EA,
EB, EC, ED, EF)
Approx. 0.22 g (ST-4G, H, EG, EH)
ENVIRONMENTAL SPECIFICATIONS
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 (Relative
humidity 8098 %),
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, 0.25 W, 1000 h [ΔR/R 3 %]
[S.S. 1 %]
Low
temperature
operation
- 55 °C, 2 h [ΔR/R 2 %]
[S.S. 2 %]
High
temperature
exposure
125 °C, 250 h [ΔR/R 3 %]
[S.S. 2 %]
Immersion seal 85 °C, 60 s No leaks (No
continuous bubbles)
Soldering heat
Sn-Pb
260 °C, 10 s or 215 °C,
35 s
[ΔR/R 1 %]
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
Reflow : two times maximum
Peak : 250
Over 230 °C
Pre Heating Zone
18C
(°C)
250
200
150
100
50
150°C
90 ± 30 s
30 ± 10 s
Soldering Zone
Heating time
Te
rut
a
r
epm
e
°C
+5
0
Reflow profile for soldering heat evolution
Document Number: 58010 For technical questions contact: copalsupport@vishay.com www.vishay.com
Revision: 06-Mar-06 6
ST-4
Surface Mount Cermet Trimmers (single turn) Vishay
The products indicated by * mark are manufactured upon
receipt oforer basis
CFC’s, Halon, Carbon tetrachloride and designated bromic flame
retardant PBBOs and PBBs are not used in our products.
The products indicated by * mark are manufactured upon receipt of order basis.
* Slot: ST-4 Slot:-42
MAXIMUM INPUT RATINGS
Nominal
resistance
values (Ω)
Resistance
code
Maximum
input voltage
(V)
Maximum
wiper current
(mA)
10* 100 1.00 100
20* 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
CONSTRUCTION
Part Name Material
Flammability
1 Wiper Multi metal alloy
-
2Cover Stainless steel
(SUS 304)
3
Housing Epoxy UL-94V-O
4 Terminal pin
Sn-Pb
Copper alloy,
Solder-plated
-
Sn-Cu
Copper alloy,
Sn-Cu-plated
5 Base element Ceramic
6 “O” ring Silicone rubber UL-94HB
7 Rotor
Polyphenylenesulphide
UL-94V-O
8 Electrode Ag-Pd cermet
-
9 Resistive element RuO2 cermet
1
6
8
4
3
9
5
7
2
LIST OF PART NUMBERS
Form of packing
Taping (reel) Magazine (stick)
Adjustment
position Shape of terminal Sn-Pb Sn (Lead (Pb)-free) Sn-Pb Sn (Lead (Pb)-free)
Top adjustment
A (J-hook) ST-4/42TA ST-4/42ETA ST-4/42A ST-4/42EA
B (Gull wing) ST-4/42TB ST-4/42ETB ST-4/42B ST-4/42EB
C (Through hole pins) - - ST-4/42C ST-4/42EC
Rear adjustment D (Gull-wing) ST-4/42TD* ST-4/42ETD* ST-4/42D* ST-4/42ED*
F (Through hole pins) - - ST-4/42F* ST-4/42EF*
Side adjustment G (J-hook) ST-54/42TG ST-4/42ETG ST-4/42G ST-4/42EG
H (Gull-wing) ST-4/42TH ST-4/42ETH ST-4/42H ST-4/42EH
Pieces in package 500 pcs./reel 100 pcs./reel
Document Number: 58010 For technical questions contact: copalsupport@vishay.com www.vishay.com
Revision: 06-Mar-06 7
ST-4
Surface Mount Cermet Trimmers (single turn) Vishay
Not manufactured
* The above part numbers are all available with the respective combination of <Nominal resitance values> (Fig.1)
* Verify the above part numbers when placing orders.
* Taping specification is not sold seperately and must be purchased in reel units.
FIG.1: NOMINAL RESISTANCE VALUES
10 Ω∗ 20 Ω∗ 50 Ω100 Ω200 Ω500 Ω1 kΩ2 kΩ5 kΩ
10 kΩ20 kΩ50 kΩ100 kΩ200 kΩ500 kΩ1 MΩ2 MΩ-
This product is manufactured by Copal Electronics Co. Ltd. of Tokyo, Japan and is distributed by Vishay in North and South America only.
This product is not available from Vishay outside of North or South America.
ORDERING INFORMATION
ST-4 T A 204
SERIES NAME (MINUS
SLOT)
TE M I NAL PIN FORM OF
PACKAGING
PRODUCT SHAPE (SHAPE
OF TERMINAL)
RESISTANCE CODE
Blank: Sn-Pb T: Taping (Reel) A, G: J-hook
E: Sn
(Lead(Pb)-free)
Blank: Bulk in vinyl
bags
B, D, H: Gull wing
C; F: Through hole pins
ORDERING INFORMATION
ST-4 2 T A 204
SERIES NAME
(CROSS SLOT)
TEMIN AL
PIN FORM OF
PACKAGING
PRODUCT SHAPE (SHAPE
OF TERMINAL)
RESISTANCE CODE
Blank: Sn-Pb T: Taping (Reel) A, G: J-hook
E: Sn
(Lead-free)
Blank: Bulk in vinyl
bags
B, D, H: Gull wing
C; F: Through hole pins
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.