SM-42/43
● RoHS compliant
● Fine adjustment is available
● Automatic mounting is available (Taping)
● Reflow soldering is available
● Sealed construction (Washable: Refer to A-328)
■
FEATURES
Part name Material Flammability
1
2
3
4
5
6
7
8
9
Rotor gear
Shaft
Terminal pin
Electrode
Base element
Resistive element
Housing
Adhesive
INTERNAL STRUCTURE
■
PART NUMBER DESIGNATION
※Please refer to the LIST OF PART NUMBERS when placing orders.
S M - 4 □T W 1 0 0 Ω( 1 0 1 )
Series name
Electrical turn
2：11 turns
3：5 turns
Form of packaging
T：Taping (Reel)
Blank：Bulk in plastic bag
Resistance code
Resistance value
Product shape (Shape of terminal)
W, X：Top adjustmet
A, B：Side adjustmet
Epoxy
Multi metal alloy
Copper alloy, Sn-Cu-plated
Polyamide
Brass, Nickel-plated
RoHS compliant
1
2
3
4
5
6
9
8
7
SURFACE MOUNT CERMET TRIMMERS
Specifications are subject to chan
g
e without notice.
PPS(Polyphenylenesulphide)
UL94-V-0
Ceramic
Ag-Pd cermet
RuO cermet
2
UL94-HB equivalent
Wiper
ʊ
ʊ
UL94-V-0
ʊ
■
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
Top adjustment
11
5
Side adjustment
Top adjustment
Side adjustment
Pieces in package
Adjustment
position
Electrical turn
Shape of terminal
Form of packaging
Taping (reel) Plastic bag
■
LIST OF PART NUMBERS
W(J-hook)
A
B
SM-42TW SM-42W
SM-42TX SM-42X
SM-42TA SM-42A
SM-42TB SM-42B
SM-43TW SM-43W
SM-43TX SM-43X
SM-43TA SM-43A
SM-43TB SM-43B
TA, TB : 500 pcs./reel
TW, TX : 250 pcs./reel
50 pcs./pack
〈
Nominal resistance values
〉
■
ELECTRICAL CHARACTERISTICS
■
MECHANICAL CHARACTERISTICS
■
ENVIRONMENTAL CHARACTERISTICS
A10 ΩA20 Ω50 Ω100 Ω200 Ω500 Ω1 kΩ2 kΩ5 kΩ
10 kΩ20 kΩ50 kΩ100 kΩ200 kΩ500 kΩ1 MΩ2 MΩFig. 1
The products indicated by
A
mark are manufactured upon receipt of order basis.
※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.
SM-42/43
SURFACE MOUNT TRIMMERS
X(Gull wing)
(J-hook)
(Gull wing)
W(J-hook)
A
B
X(Gull wing)
(J-hook)
(Gull wing)
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
Soldering heat [
Δ
R/R ≦1 %]
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual soldering：
350 ±10 °C, 3 ~ 4 s
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
17.6 mN·m {180 gf·cm} maximum
Clutch action
200 cycles [
Δ
R/R ≦±(3 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
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
±10 %
0.25 W (85 °C) 0 W (150 °C)
Linear law
DC300 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
11 turns (SM-42), 5 turns (SM-43)
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
−65 ~ 150 °C
±100 10-6/°C maximum
100 MΩminimum (DC500 V)
AC600 V, 60 s
Approx. 0.17 g
Test item Test conditions Specifications
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
Δ
R/R：Change in total resistance
S.S. ：Setting stability
−65 ~ 150 °C (0.5 h), 5 cycles [
Δ
R/R ≦2 %]
[S.S. ≦1 %]
−10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[
Δ
R/R ≦2 %]
981 m/s2, 6 ms
6 directions for 3 times each [
Δ
R/R ≦1 %]
[S.S. ≦1 %]
Amplitude 1.52 mm or
Acceleration 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
85 °C, 0.25 W, 1000 h [
Δ
R/R ≦3 % or 3 Ω]
[S.S. ≦2 %]
−65 °C, 2 h [
Δ
R/R ≦1 %]
[S.S. ≦1 %]
150 °C, 250 h [
Δ
R/R ≦2 %]
[S.S. ≦1 %]
85 °C, 60 s
No leaks (No continuous bubbles)
■
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
000 0
2
2
2
2.3 2.3
2.54
2.54
1.3 1.3
1.3
1.3
4
2
1.3
1.6
1.9
5.2
2.9
5.1
2
1.3
1.6
1.9
Nominal resistance
values (Ω)
Resistance code Maximum input
voltage (V)
Maximum wiper
current (mA)
■
MAXIMUM INPUT RATINGS
A 10 100 1.00 100
A 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 204 223 1.12
500 k 504 300 0.60
1 M 105 300 0.30
2 M 205 300 0.15
■
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS (Unit: mm)
● SM-42/43A ● SM-42/43B ● SM-42/43W ● SM-42/43X
Note) The zero point is the center of mounting.
The products indicated by A mark are manufactured upon receipt of order basis.
SM-42/43
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
2.54
1
3
2
2 – 0.8
2.6
3.5
3.9
Resistance code & Production date code
1.3
1.2
4.8
3 – 1
5.1
5.3
3 – 0.9
0.56W × 0.5D
φ
1.5, Slot
2.54
1
3
2
2 – 0.8
3.5
5.7
1.3
1.2
4.8
3 – 1
5.1
5.3
0.56W × 0.5D
Resistance code & Production date code
φ
1.5, Slot
2.3
①
③
②
2 – 0.9
2.6
3.7
Resistan ce code & Produ ction d ate code
1.3
1.2
4.8
3 – 1
4.6
5
3 – 0.8
0.56W × 0.5D
φ
1.5, Slot
2.3
1
3
2
2 – 0.9
2.8
3.9
Resistance code & Production date code
1.3
1.2
4.8
3 – 0.6
4.6
6
0.56W × 0.5D
φ
1.5, Slot
SM-42/43
SURFACE MOUNT TRIMMERS
● SM-42/43W
● SM-42/43X
● SM-42/43A
● SM-42/43B
CW rotation
1
2
3
※
Note the terminal position.
■
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
■
PACKAGING SPECIFICATIONS
<Taping packaging specifications>
● Taping version (SM-42/43TA, TB) is packaged in 500 pcs. per reel.
Orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc.
SM-42/43TW, TX is packaged in 250 pcs. per reel.
Orders will be accepted for units of 250 pcs., i.e., 500, 750 pcs., etc.
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）
(Unit: mm)
Empty Filled Empty
40 mm min. 20 pitches min.
400 mm min.
Direction of feed
Head
End
Leader
60 +1
0
180
180 (TA/TB) 15.4±1 (TA/TB)
19.5±1 (TW/TX)
21±0.8
13±0.2
2±0.5
17±0.3 (TW, TX)
13 (TA/TB)
+1
0
0
–1.5
(TW, TX)
0
–3
● SM-42/43TW/TX ● SM-42/43TA/TB
4± 0.1
0.5 ± 0.1
5.75
Cross section A-A
Installation
example
(SM-42W)
1.5
φ
+0.1
0
2± 0.1
3
1
2
12 ± 0.1
7.5 ± 0.1
16 +0.3
–0.1
1.75 ± 0.1
A
A
4± 0.1
φ
1.5
+0.1
0
2± 0.1
8± 0.1
0.4 ± 0.1
4.5
5.5 ± 0.05 1.75 ± 0.1
12
3
1
2
A
A
(SM-42A)
Cross section A-A
Installation
example
<Bulk pack specifications>
● Unit of bulk in a plastic bag is 50 pcs. per pack.
● Boxing of bulk in a plastic bag is performed with 200 pcs. per box.
SM-42/43
SURFACE MOUNT TRIMMERS
