SM-3 & 31 Series Datasheet by Nidec Copal Electronics

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SURFACE MOUNT GEBMET TBIMMEBS SM- 3 / 3 1 RoHS comliant so an 1kQ 102 M-SDTW [T—— Prudum 5m 9 (Shape cl Isrmma‘)
SM-3/31
SURFACE MOUNT CERMET TRIMMERS
RoHS compliant
Fine adjustment is possible
Automatic mounting is possible (Taping)
Reflow soldering is possible
Sealed construction (Washable: Refer to page 698.)
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
Wiper
Polyphenylenesulphide
Copper alloy, Sn-Cu-plated
Brass, Nickel-plated
Ag-Pd cermet
UL94V-0
Ceramic
UL94V-0
RuO2 cermet
Polyamide
INTERNAL STRUCTURE
PART NUMBER DESIGNATION
Please refer to the LIST OF PART NUMBERS when placing orders.
S M - 3
T W 1 k Ω ( 1 0 2 )
Series name
Form of packaging
TTaping (Reel)
BlankBulk in plastic bag
Electrical turn
Blank11 turns
15 turns
Resistance code
Resistance value
Product shape (Shape of terminal)
A, WJ-hook
BGull wing
1
2
3
4
5
67
8
9
Epoxy
Multi metal alloy
RoHS compliant
SM-3/ 3] SURFACE MOUNT TRIMMEBS (E!) Lmear law . A R/R ; 2 % , 65 ~150 V0105 m, 5 cyc‘e [[ss 2 W] 7 o~asvmau~ea m cyc‘es‘ 240 h 9m ma 6 ms 5 dlremmns for a Umes each (Amphmde) ‘ 52 mm 01 \Aoce‘erahon) 195 ms“ u « 2mm: Hz 3 dwecmns 12mg: eac [ A >R/R , 3 %] 7 [as 2 %]
11
5
Top adjustment
Side adjustment
Top adjustment
Side adjustment
Pieces in package
Electrical turns Adjustment
position Shape of terminal
Form of packaging
Taping (reel) Plastic bag
LIST OF PART NUMBERS
W
A
B
(J-hook)
(J-hook)
W
A
B
(J-hook)
(J-hook)
(Gull wing)
(Gull wing)
SM-3TW SM-3W
SM-3TA SM-3A
SM-3TB SM-3B
SM-31TW SM-31W
SM-31TA SM-31A
SM-31TB SM-31B
500 pcs./reel 50 pcs./pack
Nominal resistance values
ELECTRICAL CHARACTERISTICS
MECHANICAL CHARACTERISTICS
ENVIRONMENTAL CHARACTERISTICS
50 Ω 100 Ω 200 Ω 500 Ω 1 k Ω 2 k Ω 5 k Ω 10 k Ω
20 kΩ 50 kΩ
100 kΩ
200 kΩ
500 kΩ
1 MΩ 2 MΩFig. 1
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-3/31
SURFACE MOUNT TRIMMERS
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
Soldering heat [ ΔR/R 1 %]
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual soldering350 ± 10 °C, 3 ~ 4 s
Operating torque
Mechanical stop
Rotational life
Thrust to shaft
Solderability
Shear (Adhesion)
Substrate bending
Pull-off strength
5 mN·m {51 gf·cm} maximum
Clutch action
200 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
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
50 Ω ~ 2 M Ω
± 20 %
0.125 W (70 °C) 0 W (150 °C)
(B)
Linear law
DC200 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
11 turns (SM-3) / 5 turns (SM-31)
1 % or 3 Ω, whichever is greater
3 % or 3 Ω, whichever is greater
65 ~ 150 °C
±100 10-6/°C maximum
100 M Ω minimum (DC500 V)
AC600 V, 60 s
Approx. 0.10 g
Test item Test conditions Specifications
Thermal shock
Humidity
Shock
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
ΔR/RChange in total resistance
S.S. Setting stability
65 ~ 150 °C (0.5 h), 5 cycles [ΔR/R 2 %]
[S.S. 2 %]
10 ~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
[ΔR/R 3 %]
981 m/s2, 6 ms
6 directions for 3 times each [ΔR/R 1 %]
[S.S. 1 %]
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s2,
10 ~ 2000 Hz, 3 directions, 12 times each
70 °C, 0.125 W, 1000 h [ΔR/R 3 %]
[S.S. 2 %]
65 °C, 2 h [ΔR/R 2 %]
[S.S. 2 %]
150 °C, 250 h [ΔR/R 3 %]
[S.S. 2 %]
85 °C, 60 s
No leaks
(No continuous bubbles)
SM-3/ 31 SURFACE MOUNT TBIMMEBS r—1 _ V—w1 ‘ ‘+‘ i I + l i \ + 7 if 4, ‘ ‘ \ , ‘ LL + ‘ L; + i x ‘ LJ: Reststanne node & Pmduwan data cufle g4!!! J» ® I :11
1.3
1.3
1.6
2.43
2.8 0.9
1.3
1.6
1.6
3.12
2.8
00
0.9
1.3
1.6
1.6
4
2.8
0
0.9
1.3
2
2
4.4
2.8
0
0.9
SM-3/31
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)
50 500 2.50 50.0
100 101 3.53 35.4
200 201 5.00 25.0
500 501 7.91 15.8
1 k 102 11.2 11.2
2 k 202 15.8 7.91
5 k 502 25.0 5.00
10 k 103 35.4 3.54
20 k 203 50.0 2.50
50 k 503 79.1 1.58
100 k 104 112 1.12
200 k 204 158 0.79
500 k 504 200 0.40
1 M 105 200 0.20
2 M 205 200 0.10
(Unit : mm)
SM-3W/31W SM-3A/31A SM-3B/31B
Note) The zero point is the center of mounting.
Also available to place as the
above.
SM-3W/31W
Top adjustment
1
2
3
2.3
3.2
3.9
0.4W × 1.3L × 0.3D
0.8
0.8
4.2
3.5
Resistance code & Production date code
2.8
0.6
1
3.9
CW rotation
1
2
3
Note the terminal position.
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm)
ΔR/RChange in total resistance
S.S. Setting stability
SM-3/ 31 SURFACE MOUNT TRIMMEBS Hf? [ CE—i‘ ”EC::Z @gi ,@ [ r-—'\ a? [ fl 75:7“ 2] «31:51 7—H—M—H—\ °n°n m °W°D °D°D »—<><>
SM-3/31
SURFACE MOUNT TRIMMERS
SM-3A/31A
Side adjustment
1
2
3
2.5
3.9
0.4W × 1.3L × 0.3D
3 – 0.8
3.4
3 – 0.8
4.4
Resistance code &
Production date code
2.8
2 – 0.6
1
3.9
SM-3B/31B
Side adjustment
1
2
3
2.5
3.9
0.4W × 1.3L × 0.3D
3.4
5.3
Resistance code &
Production date code
2.8
2 – 0.6
1
3.9
CW rotation
1
2
3
Note the terminal position.
OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm)
PACKAGING SPECIFICATIONS
Maximum number of consecutive missing pieces = 2
Leader length and reel dimension are shown in the dia-
grams below.
<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.
Taping version is boxed with one reel.
REEL DIMENSIONS
Conforms to JIS C 0806-3
In accordance with EIAJ ET-7200A
(Unit: mm)
EMBOSSED TAPE DIMENSIONS
Empty Filled Empty
40 mm min. 20 pitches min.
400 mm min.
Direction of feed
HeadEnd
Leader
60 +1
0
180 15.4±1
21±0.8
13±0.2
2±0.5
13 +1
0
0
–1.5
SM-3/ 3 I SURFACE mount TBIMMEBS *4‘ LJ HP / Tb >59¢J$<§ {9&5="" 7="" i="" 5%“,hr="" ,hpfl‘="" '="" w)="" k="" g="">
4 ± 0.1
0.4 ± 0.1
1.75 ± 0.1
12 +0.3
–0.1
5.5 ± 0.05
4.7
Installation example
(SM-3W)
Cross section A-A
A
A
8 ± 0.1
3
21
1.5
φ
+0.1
0
2 ± 0.05
SM-3/31
SURFACE MOUNT TRIMMERS
SM-3TW/31TW
4 ± 0.1 0.4 ± 0.1
(SM-3A)
3.9
2 ± 0.05
8 ± 0.1
1.75 ± 0.1
5.5 ± 0.05
12 +0.3
–0.1
A
φ
1.5 +0.1
0
A3
1
2Cross section A-A
Installation example
SM-3TA/31TA
4 ± 0.1 0.4 ± 0.1
(SM-3B)
Installation example
3.9
2 ± 0.05
8 ± 0.1
1.75 ± 0.1
5.5 ± 0.05
12 +0.3
–0.1
A
φ
1.5 +0.1
0
A3
1
2Cross section A-A
SM-3TB/31TB
<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.

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