SM31TA501 [ETC]
TRIMMER 500 OHM 0.125W J LEAD;
| 型号： | SM31TA501 |
| 厂家： | 
ETC |
| 描述： | TRIMMER 500 OHM 0.125W J LEAD |
| 文件： | 总5页 (文件大小：847K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SURFACE MOUNT CERMET TRIMMERS SM-3/31
INTERNAL STRUCTURE
RoHS compliant
1
2
9
8
3
4
5
7
6
Part name
Housing
Material
Flammability
■
FEATURES
Polyphenylenesulphide UL94V-0
Ceramic
1
2
3
4
5
6
7
8
9
● RoHS compliant
● Fine adjustment is possible
● Automatic mounting is possible (Taping)
● Reflow soldering is possible
● Sealed construction (Washable: Refer to page 698.)
Base element
Electrode
Resistive element
Adhesive
Ag-Pd cermet
RuO2 cermet
—
Epoxy
Wiper
Multi metal alloy
Terminal pin
Rotor gear
Shaft
Copper alloy, Sn-Cu-plated
Polyamide
UL94V-0
—
Brass, Nickel-plated
■
PART NUMBER DESIGNATION
S M - 3
□
T W 1 k Ω ( 1 0 2 )
Series name
Electrical turn
Resistance code
Resistance value
Blank：11 turns
1：5 turns
Product shape (Shape of terminal)
A, W：J-hook
B：Gull wing
Form of packaging
T：Taping (Reel)
Blank：Bulk in plastic bag
※ Please refer to the LIST OF PART NUMBERS when placing orders.
SM-3/31
SURFACE MOUNT TRIMMERS
■
LIST OF PART NUMBERS
〈
Nominal resistance values〉
50 Ω 100 Ω 200 Ω 500 Ω 1 k Ω 2 k Ω 5 k Ω 10 k Ω
Form of packaging
Adjustment
position
Electrical turns
Shape of terminal
Taping (reel)
Plastic bag
20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 2 MΩ
Fig. 1
Top adjustment
(J-hook)
(J-hook)
SM-3TW
SM-3TA
SM-3W
W
A
11
5
SM-3A
SM-3B
Side adjustment
Top adjustment
Side adjustment
(Gull wing)
(J-hook)
SM-3TB
B
SM-31TW
SM-31TA
SM-31TB
500 pcs./reel
SM-31W
SM-31A
W
A
(J-hook)
※The above part numbers are all available with the respective combination
of <Nominal resistance values> (Fig. 1).
(Gull wing)
SM-31B
B
※ Verify the above part numbers when placing orders.
※
Pieces in package
50 pcs./pack
Taping specification is not sold separately and must be purchased in reel units.
■
ELECTRICAL CHARACTERISTICS
■ MECHANICAL CHARACTERISTICS
Nominal resistance range
Resistance tolerance
Power ratings
50 Ω ~ 2 M Ω
Operating torque
Mechanical stop
Rotational life
5 mN·m {51 gf·cm} maximum
± 20 %
Clutch action
0.125 W (70 °C) 0 W (150 °C)
200 cycles [ Δ R/R ≦ ± (2 Ω +3 %)]
5 N {0.51 kgf} minimum
245 ± 3 °C, 2 ~ 3 s
（B）
Linear law
Resistance law
Thrust to shaft
Solderability
Maximum input voltage DC200 V or power rating, whichever is smaller
Maximum wiper current 100 mA or power rating, whichever is smaller
Shear (Adhesion)
Substrate bending
Pull-off strength
5 N {0.51 kgf} 10 s
Effective electrical turn
End resistance
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
Width 90 mm, bend 3 mm, 5 s, 1 time
5 N {0.51 kgf} 10 s
{
}：Reference only
C.R.V.
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
■
ENVIRONMENTAL CHARACTERISTICS
Test item
Test conditions
Specifications
[ Δ R/R ≦ 2 %]
[S.S. ≦ 2 %]
Thermal shock − 65 ~ 150 °C (0.5 h), 5 cycles
Approx. 0.10 g
− 10 ~ 65 °C (80 ~ 98 %),
Humidity
[ Δ R/R ≦ 3 %]
10 cycles, 240 h
981 m/s2, 6 ms
Shock
6 directions for 3 times each
〈Reflow profile for soldering heat evaluation〉
[ Δ R/R ≦ 1 %]
[S.S. ≦ 1 %]
(Amplitude) 1.52 mm or
(Acceleration) 196 m/s2,
Vibration
10 ~ 2000 Hz, 3 directions, 12 times each
(℃)
250
Peak : 250 +5
℃
0
[ Δ R/R ≦ 3 %]
[S.S. ≦ 2 %]
Load life
70 °C, 0.125 W, 1000 h
Over 230 ℃
Pre Heating Zone
[ Δ R/R ≦ 2 %]
[S.S. ≦ 2 %]
Low temp. operation
High temp. exposure
Immersion seal
− 65 °C, 2 h
200
150
180 ℃
150 ℃
[ Δ R/R ≦ 3 %]
[S.S. ≦ 2 %]
No leaks
150 °C, 250 h
90 ± 30 s
85 °C, 60 s
(No continuous bubbles)
100
50
30 ± 10 s
Soldering Zone
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual soldering：350 ± 10 °C, 3 ~ 4 s
Soldering heat
[ Δ R/R ≦ 1 %]
Heating time
Reflow : two times maximum
Δ R/R：Change in total resistance
S.S. ：Setting stability
SM-3/31
SURFACE MOUNT TRIMMERS
■
MAXIMUM INPUT RATINGS
Nominal resistance values ( Ω )
Resistance code
Maximum input voltage (V) Maximum wiper current (mA)
50
500
101
201
501
2.50
3.53
5.00
7.91
50.0
35.4
25.0
15.8
100
200
500
1 k
2 k
5 k
10 k
20 k
50 k
102
202
502
103
203
503
11.2
15.8
25.0
35.4
50.0
79.1
11.2
7.91
5.00
3.54
2.50
1.58
100 k
200 k
500 k
1 M
104
204
504
105
205
112
158
200
200
200
1.12
0.79
0.40
0.20
0.10
2 M
■
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
(Unit : mm)
● SM-3W/31W
● SM-3A/31A
● SM-3B/31B
1.3
1.3
1.3
1.3
0
0
0
0
0.9
0.9
2.8
2.8
0.9
2.8
0.9
2.8
※
Also available to place as the
above.
Note) The zero point is the center of mounting.
■
OUTLINE DIMENSIONS
Unless otherwise specified, tolerance : ± 0.3 (Unit : mm)
● SM-3W/31W
Top adjustment
1
3
CW rotation
2
Resistance code & Production date code
1
0.8
0.8
※ Note the terminal position.
2
2.3
3.2
3.5
3.9
4.2
3
0.4W × 1.3L × 0.3D
SM-3/31
SURFACE MOUNT TRIMMERS
■
OUTLINE DIMENSIONS
Unless otherwise specified, tolerance : ± 0.3 (Unit : mm)
● SM-3A/31A
Side adjustment
● SM-3B/31B
Side adjustment
1
3
CW rotation
Resistance code &
Production date code
Resistance code &
Production date code
2
※
Note the terminal position.
0.4W × 1.3L × 0.3D
0.4W × 1.3L × 0.3D
3.9
1
3.9
1
3.4
3.4
3 – 0.8
2
2
2 – 0.6
2.8
1
2 – 0.6
2.8
3
1
3
■
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.
Maximum number of consecutive missing pieces = 2
Leader length and reel dimension are shown in the dia-
grams below.
● Taping version is boxed with one reel.
● EMBOSSED TAPE DIMENSIONS
● REEL DIMENSIONS
（Conforms to JIS C 0806-3）
（In accordance with EIAJ ET-7200A）
(Unit: mm)
Empty
Filled
Empty
13 +1
0
End
Head
21 0.8
2 0.5
40 mm min.
20 pitches min.
Leader
400 mm min.
Direction of feed
13 0.2
0
180 –1.5
15.4 1
SM-3/31
SURFACE MOUNT TRIMMERS
● SM-3TW/31TW
4
0.1
2
0.05
φ
0.4 0.1
A
3
Installation example
(SM-3W)
A
2
1
Cross section A-A
4.7
8
0.1
● SM-3TA/31TA
4
0.1
0.05
φ
0.4 0.1
Installation example
(SM-3A)
2
3
A
1
A
3.9
Cross section A-A
8
0.1
2
● SM-3TB/31TB
4
0.1
0.05
A
φ
0.4 0.1
2
3
Installation example
(SM-3B)
1
A
3.9
Cross section A-A
8
0.1
2
<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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