refer to the LIST OF PART NUMBERS when placing orders.
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
SM-3/31
■
LIST OF PART NUMBERS
Electrical turns
Adjustment
position
Top adjustment
11
Side adjustment
Form of packaging
Shape of terminal
Taping (reel)
Plastic bag
〈
Nominal resistance values
〉
50
Ω
20 kΩ
100
Ω
200
Ω
500
Ω
1 kΩ
2 kΩ
5 kΩ
2 MΩ
10 kΩ
50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ
Fig. 1
W
A
B
(J-hook)
(J-hook)
(Gull wing)
(J-hook)
(J-hook)
(Gull wing)
SM-3TW
SM-3TA
SM-3TB
SM-31TW
SM-31TA
SM-31TB
SM-3W
SM-3A
SM-3B
SM-31W
SM-31A
SM-31B
※
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.
Top adjustment
5
Side adjustment
W
A
B
Pieces in package
500 pcs./reel
50 pcs./pack
■
ELECTRICAL CHARACTERISTICS
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 MΩ
±
20 %
0.125 W (70 °C) 0 W (150 °C)
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 MΩ minimum (DC500 V)
■
MECHANICAL CHARACTERISTICS
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 [
Δ
R/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
■
ENVIRONMENTAL CHARACTERISTICS
Test item
Thermal shock
Test conditions
−65
~ 150 °C (0.5 h), 5 cycles
−10
~ 65 °C (80 ~ 98 %),
10 cycles, 240 h
981 m/s
2
, 6 ms
6 directions for 3 times each
Amplitude 1.52 mm or
Acceleration 196 m/s
2
,
10 ~ 2000 Hz, 3 directions, 12 times each
Specifications
[
Δ
R/R
≦
2 %]
[S.S.
≦
2 %]
[
Δ
R/R
≦
3 %]
[
Δ
R/R
≦
1 %]
[S.S.
≦
1 %]
[
Δ
R/R
≦
3 %]
[S.S.
≦
2 %]
[
Δ
R/R
≦
2 %]
[S.S.
≦
2 %]
[
Δ
R/R
≦
3 %]
[S.S.
≦
2 %]
No leaks (No continuous bubbles)
AC600 V, 60 s
Humidity
Approx. 0.10 g
Shock
Reflow profile for soldering heat evaluation
〉
(°C)
250
Temperature
200
150
100
50
Peak : 250
+5
0
Vibration
Load life
Low temp. operation
High temp. exposure
Immersion seal
°C
70 °C, 0.125 W, 1000 h
−65
°C, 2 h
150 °C, 250 h
85 °C, 60 s
Reflow : Peak temperature 255 °C
(Please refer to the profile below.)
Manual soldering：350
±
10 °C, 3 ~ 4 s
Over 230
°C
180
°C
150
°C
Pre Heating Zone
90
±
30 s
30
±
10 s
Heating time
Soldering Zone
Soldering heat
[
Δ
R/R
≦
1 %]
Reflow : two times maximum
Δ
R/R：Change in total resistance
S.S.
：Setting
stability
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
SURFACE MOUNT TRIMMERS
SM-3/31
■
MAXIMUM INPUT RATINGS
Nominal resistance values (Ω)
50
100
200
500
1k
2k
5k
10 k
20 k
50 k
100 k
200 k
500 k
1M
2M
Resistance code
500
101
201
501
102
202
502
103
203
503
104
204
504
105
205
Maximum input voltage (V)
2.50
3.53
5.00
7.91
11.2
15.8
25.0
35.4
50.0
79.1
112
158
200
200
200
Maximum wiper current (mA)
50.0
35.4
25.0
15.8
11.2
7.91
5.00
3.54
2.50
1.58
1.12
0.79
0.40
0.20
0.10
■
RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS
●
SM-3W/31W
1.3
1.3
1.6
1.6
2
4.4
0
2.8
0.9
●
SM-3A/31A
1.3
●
SM-3B/31B
1.3
(Unit : mm)
3.12
2.43
1.3
0
1.6
4
0
1.6
0
1.6
2.8
0.9
2.8
0.9
0.9
2.8
※
Also available to place as the above.
Note) The zero point is the center of mounting.
■
OUTLINE DIMENSIONS
●
SM-3W/31W
Top adjustment
Resistance code & Production date code
Unless otherwise specified, tolerance :
±
0.3 (Unit : mm)
1
2
0.8
2
3
CW rotation
1
※
Note the terminal position.
2.8
0.6
3.9
1
3
2.3
3.2
3.5
3.9
4.2
0.4W
×
1.3L
×
0.3D
0.8
Specifications are subject to change without notice.
2
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
SM-3/31
■
OUTLINE DIMENSIONS
●
SM-3A/31A
Side adjustment
Resistance code &
Production date code
2.5
Unless otherwise specified, tolerance :
±
0.3 (Unit : mm)
●
SM-3B/31B
Side adjustment
Resistance code &
Production date code
2.5
1
3
CW rotation
2
※
Note the terminal position.
0.4W
×
1.3L
×
0.3D
0.4W
×
1.3L
×
0.3D
3.9
1
2
3.4
3 – 0.8
3 – 0.8
3.9
1
2
3.4
4.4
3.9
2 – 0.6
3
2.8
1
3
2 – 0.6
2.8
1
■
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.
●
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.
●
REEL DIMENSIONS
（Conforms
to JIS C 0806-3）
●
EMBOSSED TAPE DIMENSIONS
（In
accordance with EIAJ ET-7200A）
5.3
3.9
(Unit: mm)
Empty
Filled
Empty
13
Head
+1
0
40 mm min.
20 pitches min.
Leader
Direction of feed
400 mm min.
13±0.2
180
–1.5
0
15.4±1
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
60
+1
0
End
21±0.8
2±0.5
COPAL ELECTRONICS
SURFACE MOUNT TRIMMERS
SM-3/31
●
SM-3TW/31TW
2
±
0.05
φ
5
1.
.1
+0 0
1.75
±
0.1
4
±
0.1
A
3
0.4
±
0.1
Installation example
(SM-3W)
5.5
±
0.05
2
A
8
±
0.1
1
12
+0.3
–0.1
4.7
Cross section A-A
●
SM-3TA/31TA
4
±
0.1
2
±
0.05
A
1.75
±
0.1
0.4
±
0.1
Installation example
(SM-3A)
5.5
±
0.05
A
2
8
±
0.1
1
12
+0.3
–0.1
φ
1.
5
.1
+0 0
3
3.9
Cross section A-A
●
SM-3TB/31TB
4
±
0.1
2
±
0.05
A
1.75
±
0.1
0.4
±
0.1
Installation example
(SM-3B)
1
5.5
±
0.05
A
2
8
±
0.1
12
–0.1
+0.3
<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.
■
Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
[color=#252525][size=14px]Hello, I want to use a microcontroller to control the DAC to output 8-channel voltage. The selected DAC is LT2600, so which microcontroller should I choose? I don't have much...
[i=s]This post was last edited by dontium on 2015-1-23 12:44[/i] THS770006 can drive 14-bit and 16-bit high-speed ADCs up to 200MHz with the highest linearity and the largest dynamic range, and can be...
I want to develop an application related to IC cards. The ultimate goal is to be able to read and modify the data on the IC card through a PC. The current situation is that I have a set of fully funct...
[i=s] This post was last edited by 90houyidai on 2014-10-18 22:07 [/i] The return pin of the board is short-circuited after powering on. I just tested it again and found that it is the switch....
The division of labor is as follows: https://bbs.eeworld.com.cn/thread-309947-1-1.html We look forward to your participation. Netizens who propose design plans and participate in DIY design implementa...
I downloaded the firmware library of the STM32F series. There are three startup files under the path "um0427\Libraries\CMSIS\Core\CM3\startup\arm", namely startup_stm32f10x_hd.s, startup_stm32f10x_md....
Abstract:
With the increasing complexity of smart vehicle electrical and electronic architectures, the full lifecycle management of vehicle electronic control components faces multiple challe...[Details]
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
EtherCAT (Ethernet for Control Automation Technology) is a real-time industrial fieldbus communication protocol based on an Ethernet-based development framework. EtherCAT is one of the fastest indu...[Details]
Some time ago, I attended the 4th Energy Chemistry Forum of the Chinese Chemical Society and learned about high-energy-density and high-safety batteries. I would like to summarize and share this wi...[Details]
Limited vocabulary recognition
According to the number of characters, words or short sentences in the vocabulary, it can be roughly divided into: less than 100 is small vocabulary; 100-1000 is...[Details]
White light LEDs are voltage-sensitive devices. In actual operation, their upper limit is 20mA. However, the current often increases due to various reasons during use. If no protective measures are...[Details]
Definition of interactive projection system:
Interactive projection systems, also known as multimedia interactive projection, are available in floor, wall, and tabletop interactive projection....[Details]
According to foreign media reports, secondary battery materials company POSCO Future M announced that it has successfully developed two experimental (prototype) positive electrode materials for the...[Details]
The Automotive Testing and Quality Assurance Expo (ATE 2025) will open on August 27th. At the expo, Rohde & Schwarz (R&S) will showcase six automotive testing solutions, themed "Intelligently Drivi...[Details]
When discussing autonomous driving technology, there are often two extremes: on the one hand, there's the vision of "fully autonomous driving," while on the other, there's concern about potential s...[Details]
This paper proposes a temperature real-time transmission and display solution based on LED optical data transmission, with Jingwei Yager low-power FPGA HR (Yellow River) series as the main controll...[Details]
The complexity of the integrated circuits (ICs) used in electronic systems in vehicles is increasing. They aim to execute artificial intelligence (AI) algorithms to control autonomous driving funct...[Details]
Recently, Joyson Electronics has made positive progress in the core technology research and development of the robot's "brain and brain" and key components, and launched the industry's first integr...[Details]
Common methods for troubleshooting roller press bearing wear include repair welding, thermal spraying, brush plating, and scrapping and replacement. However, these methods are often subject to asse...[Details]
Plug-in hybrid vehicles (PHEVs) utilize two powertrains. Their pure electric range is typically inferior to that of pure electric vehicles, often reaching less than half that. Currently, mainstream...[Details]
MCU
京公网安备 11010802033920号
EEWORLD
