SM-4
Vishay
Surface Mount Cermet Trimmers (12 Turns)
FEATURES
•
•
•
•
•
•
Lead (Pb)-free soldering, Cadmium-free
Fine adjustment is possible
Automatic mounting is possible (Taping)
Flow/reflow soldering is possible
Sealed construction (Washable)
RoHS compatible
DIMENSIONS in millimeters
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
2
SM-4B
SM-4W
0
2 - 1.3
2.3
5 .2
4
0
2 .9
SM-4A
SM-4W, EW
1 .3
2
3-2
2
SM-4B, EB
3 - 1.6
SM-4A, EA
0
2 - 1.3
2 - 1.3
2.54
2.3
Note) The zero point is the center of mounting.
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For technical questions contact: copalsupport@vishay.com
Document Number: 58008
Revision: 06-Mar-06
SM-4
Vishay
Surface Mount Cermet Trimmers (12 Turns)
OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
SM-4A, SM-4EA
Side adjustment
1
3
CW rotation
Lead (Pb)-free Identification mark
2
Ø 1.5, Slot 0.56 W × 0.5 D
2.6
4.5
3
5
3
*
Note the terminal position.
Resistance code & Production date code
1
3.7
2.35
2 - 0.8
1.2
4.9
1.2
2
t = 0.15
SM-4B, SM-4EB
Side adjustment
Resistance code & Production date code
Ø 1.5, Slot 0.56 W × 0.5 D
2.6
6.2
3
0.35 min.
2
4.5
2.35
1.2
1.2
4.9
1
2 - 0.8
0.35 min.
3.7
Lead-free Identification mark
SM-4W, SM-4EW
Top adjustment
1.2
1.2
2.6
Ø 1.5, Slot
0.56 W × 0.5 D
Lead (Pb)-free Identification mark
Document Number: 58008
Revision: 06-Mar-06
2.54
2
5.1
5.3
For technical questions contact: copalsupport@vishay.com
1.7
3.8
2 - 0.8
3
t = 0.15
Resistance code & Production date code
3.7
4.9
1
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SM-4
Vishay
Surface Mount Cermet Trimmers (12 Turns)
PACKAGING SPECIFICATIONS
Taping packaging specifications
· Taping version (SM-4TA, TB, ETA, ETB types) are packaged in 500 pcs. per reel.
·
Orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc.
SM-4TW, ETW types are packaged in 250 pcs. per reel.
Orders will be accepted for units of 250 pcs., i.e., 500, 750 pcs., etc.
Taping version is boxed with one reel.
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)
(TA/TB type : In accordance with EIAJ ET-7200A)
Empty
Filled
(Unit: mm)
Empty
+1
13 0 (TA/TB/ETA/ETB)
17.4 ± 1 (TW/ETW)
Head
40 mm min.
20 pitches min.
Leader 400 mm min.
Direction of feed
Ø 21 ± 0.8
Ø 6 0 +10 (TA/TB/ETA/ETB)
Ø 80 ± 1 (TW/ETW)
End
2 ± 0.5
Ø 13 ± 0.2
0
Ø 180 -1.5 (TA/TB/ETA/ETB)
Ø 182 ± 1 (TW/ETW)
12 ± 0.1
4 ± 0.1
2 ± 0.5
0.3 ± 0.1
Installation example
(SM-4A/EA)
1.75 ± 0.1
+ 0.1
0
0.3 ± 0.1
Installation example
(SM-4W/EW)
16
Ø 1.5
7.5 ± 0.05
8 ± 0.1
4 ± 0.1 2 ± 0.05
12
Ø
+ 0.1
1.5 0
SM-4TW/ETW
7.5 ± 0.05 1.75 ± 0.1
SM-4TA/TB/ETA/ETB
15.4 ± 1 (TA/TB/ETA/ETB)
20.4 ± 1 (TW/ETW)
4.5
Direction of feed
5.75
Direction of feed
Vinyl bag packaging specifications
· Unit of bulk in vinyl bag packaging is 50 pcs. per pack.
· Boxing of bulk in vinyl bags is performed with 200 pcs. per box.
Document Number: 58008
Revision: 06-Mar-06
For technical questions contact: copalsupport@vishay.com
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3
SM-4
Vishay
Surface Mount Cermet Trimmers (12 Turns)
MECHANICAL SPECIFICATIONS
ENVIRONMENTAL SPECIFICATIONS
Mechanical turn
12 turns
Test item
Test conditions
Specifications
Operating torque
20 mN m {204 gf cm} maximum
Thermal shock
Mechanical stop
Clutch action
- 65 ∼ 150 °C
(0.5 h), 5 cycles
[ΔR/R ≤ 2 %]
[S.S. ≤ 1 %]
Rotational life
200 cycles [Δ R/R ≤ ± (3 Ω + 3 %)]
Thrust to shaft
5 N {0.51 kgf} minimum
Humidity
[ΔR/R ≤ 2 %]
Solderability
Sn-Pb: 235 °C, 2 s
Sn-Cu (Lead (Pb)-free): 245 ± 3 °C,
2∼3s
- 10 ∼ 65 °C
(Relative humidity
80 ∼ 98 %),
10 cycles, 240 h
Shock
981 m/s2, 6 ms
6 directions for 3
times each
Shear (Adhesion)
5 N {0.51 kgf} 10 s
Substratre bending
Width 90 mm, bend 3 mm, 5 s, 1 time
Pull-off strength
5 N {0.51 kgf} 10 s
Vibration
Amplitude 1.52 mm
or
Acceleration
196 m/s2,
10 ∼ 2000Hz,
3 directions, 12
times each
Load Life
85 °C, 0.25 W, 1000
h
[ΔR/R ≤ 2 %]
[S.S. ≤ 1 %]
Low temperature
operation
- 65 °C, 2 h
[ΔR/R ≤ 1 %]
[S.S. ≤ 1 %]
High temperature
exposure
150 °C, 250 h
[ΔR/R ≤ 2 %]
[S.S. ≤ 1 %]
85 °C, 60 s
No leaks (No
continuous bubbles)
ELECTRICAL CHARACTERISTICS
10 Ω ∼ 2 MΩ
Nominal resistance range
Resistance tolerance
± 10 %
0.25 W (85 °C) 0 W (150 °C)
Power ratings
Resistance law
Linear law (B)
Maximum input voltage
DC300 V or power rating,
whichever is smaller
Maximum wiper current
100 mA or power rating,
whichever is smaller
Effective electrical turn
10 turns
End resistance
1 % or 2 Ω, whichever is greater
C.R.V.
1 % or 3 Ω, whichever is greater
± 100 10-6 /°C maximum
Temp. coefficient
Insulation resistance
1000 MΩ minimum (DC500 V)
Dielectric strength
AC600 V, 60 s
Net weight
Approx. 0.2 g
Reflow profile for soldering heat evaluation
(°C)
250
Peak : 250 0°C
200
Pre Heating Zone
+5
Temperature
Over 230 °C
180°C
Sn-Pb
260 °C, 10 s or
215 °C, 35 s
- 6 ∼ 150 °C
Operating temp. range
150
Immersion seal
[ΔR/R ≤ 1 %]
[S.S. ≤ 1 %]
Soldering heat
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
[ΔR/R ≤ 1 %]
150°C
90 ± 30 s
100
50
30 ± 10 s
Heating time
Soldering Zone
Reflow : two times maximum
Document Number: 58008
Revision: 06-Mar-06
For technical questions contact: copalsupport@vishay.com
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4
SM-4
Vishay
Surface Mount Cermet Trimmers (12 Turns)
MAXIMUM INPUT RATINGS
2
3
Nominal
resistance
values (Ω)
Resistance
code
Maximum
input voltage
(V)
Maximum
wiper current
(mA)
10*
100
1.00
100
20*
200
2.00
100
1
4
12
5
11
50
500
3.53
70.7
100
101
5.00
50.0
200
201
7.07
35.4
500
501
11.2
22.4
1k
102
15.8
15.8
2k
202
22.4
11.2
5k
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
223
1.12
500 k
504
300
0.60
1M
105
300
0.30
2M
205
300
0.15
6
7
10
8
9
CONSTRUCTION
Part Name
1
Housing
2
Cover
3
Rotor gear
4
Clutch springt
Terminal pin
5
* The products inticated by ∗ mark are manufactured upon
receipt of order basis
Material
Flammability
PPS
(Polyphenylenesulp
hide)
UL-94V-O
Stainless steel
-
PPS
(Polyphenylenesulp
hide)
UL-94V-O
Stainless steel
-
Sn-Pb
Copper alloy,
Solder-plated
-
Sn-C
u
Copper,
Sn-Cu-plated
-
6
Base element
7
Resistive element
Ceramic
-
RuO2 cermet
-
Ag-Pd cermet
-
8
Electrode
9
Wiper
Multi metal alloy
10
“O” ring
Silicone rubber
UL-94HB
11
Base
Epoxy
UL-94V-O
12
Shaft
Metal
-
CFCs, Halon, Carbon tetrachloride and designated
bromic flame retardant PBBOs and PBBs are not used
in our products.
LIST OF PART NUMBERS
Form of packing
Adjustment
position
Shape of terminal
Taping (reel)
Vinyl bag
Sn-Pb
Sn-Pb
(Lead (Pb)-free)
Sn-Pb
Sn-Pb
(Lead (Pb)-free)
Top adjustment
W (J-hook)
SM-4TW
SM-4ETW
SM-4W
SM-4EW
Side adjustment
A (J-hook)
SM-4TA
SM-4ETA
SM-4A
SM-4EA
B (Gull wing)
SM-4TB
SM-4ETB
SM-4B
SM-4EB
Pieces in package
TW, ETW: 250 pcs./reel
TA, ETA: 500 pcs./reel
50 pcs./pack
TB, ETB: 500 pcs./reel
Document Number: 58008
Revision: 06-Mar-06
For technical questions contact: copalsupport@vishay.com
www.vishay.com
5
SM-4
Vishay
Surface Mount Cermet Trimmers (12 Turns)
FIG. 1: NOMINAL RESISTANCE VALUES
∗ 10 Ω
∗ 20 Ω
50 Ω
100 Ω
200 Ω
500 Ω
1 kΩ
2 kΩ
5kΩ
10 kΩ
20 kΩ
50 kΩ
100 kΩ
200 kΩ
500 kΩ
1 MΩ
2 MΩ
-
The products inticated by ∗ mark are manufactured upon
receipt of order basis
* The above part numbers are all available with the
respective combination of .
* Verify the above part numbers when placing orders.
* Taping specification is not sold seperately and must be
purchased in reel units.
ORDERING INFO
SM-4
SERIES NAME
T
A
204
TERMINAL PIN
FORM OF
PACKAGING
PRODUCT SHAPE (SHAPE
OF TERMINAL)
RESISTANCE CODE
Blank: Sn-Pb
T: Taping
(Reel)
A: J-hook
E: Sn-Cu (Lead
(Pb)-free)
Blank: Bulk in
vinyl bags
B: Gull wing
W: J-hook
This product is manufactured by Copal Electronic Co. Ltd. of Tokyo, Japan and distributed by Vishay in North and South America only.
This product is not available from Vishay outside of North or South America.
Document Number: 58008
Revision: 06-Mar-06
For technical questions contact: copalsupport@vishay.com
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Legal Disclaimer Notice
Vishay
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.
Document Number: 91000
Revision: 08-Apr-05
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