*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
PTD90 Series - 9 mm Multi-Ganged Potentiometer
Product Dimensions
SHAFT STYLE
"K"
L
±
0.5
(.020)
1.5
(.059)
A
18 TEETH
KNURL
How To Order
SHAFT STYLE
"F"
L
±
B
F
0.5
(.020)
PTD90 1 - 2 0 20 K - B 203
Model
• PTD90 =
No Switch
No. of Sections
• 1 = 1 Section
• 2 = 2 Sections
• 3 = 3 Sections
• 4 = 4 Sections
• 5 = 5 Sections
• 6 = 6 Sections
• 8 = 8 Sections
Pin Style
• 1 = PC Pins vertical/
down facing
and ±10 %
Total Resistance
Tolerance
•2=
6.5
±
0.3
(.256
±
.012)
B
1.0
(.039)
6.0 +0/-0.1
(.236 +0/-.004)
DIA.
30
°
9.5
±
0.3
(.374
±
.012)
6.0
(.236)
4.8
±
0.3
(.189
±
.012)
9.5
±
0.3
(.374
±
.012)
4.5
(.177)
4.5
(.177)
6.0 +0/-0.1
(.236 +0/-.004)
DIA.
60
°
4.8
±
0.3
(.189
±
.012)
6.5
±
0.3
(.256
±
.012)
0.8
(.031)
2.0
(.079)
0.8
(.031)
6.0
(.236)
0.8
(.031)
2.0
(.079)
0.8
(.031)
PC Pins vertical/
down facing
and ±20 %
Total Resistance
Tolerance
3.5
(.138)
5.0
(.197)
3.5
(.138)
5.0
(.197)
Center Detent Option
• 0 = No Detent
• 2 = Center Detent
Standard Shaft Length
• 15 = 15 mm
• 20 = 20 mm
• 25 = 25 mm
Shaft Styles
• K = Knurled Type Shaft (Metal)
18 Toothed Serration Type
• F = Flatted Metal Shaft
Resistance Taper (See Taper Charts)
Taper Series followed by Curve Number
Resistance Code (See Table)
Other shaft styles available.
SHAFT SHOWN IN CCW POSITION
L
B
A
15
(.591)
5
(.197)
6
(.236)
20
(.787)
7
(.276)
10
(.394)
25
(.984)
10
(.394)
12
(.472)
L
B
F
SHAFT SHOWN IN CCW POSITION
15
(.591)
5
(.197)
7
(.276)
20
(.787)
7
(.276)
12
(.472)
25
(.984)
10
(.394)
12
(.472)
DIMENSIONS:
MM
(INCHES)
Tapers
A Series Tapers
100
90
80
Terminal 1-2 Output Voltage
X 100 (%)
Terminal 1-3 Input Voltage
70
60
50
40
30
20
10
A6
A5
):
:
0A
A)
(3
(25
A4
A):
20
): A3
(
A
(15
A
A):
(10
A): A1
(05
B Series Tapers
100
(5B
): B
): B
5
4
(3B
): B
(2B
3
): B
2
(B
):
(1B
B
):
B
1
C Series Tapers
100
90
80
Terminal 1-2 Output Voltage
X 100 (%)
Terminal 1-3 Input Voltage
70
60
50
40
30
20
10
(3
(25 0C):
C
C
(20 ): C 6
5
(15 C):
C) C 4
:
(1 C3
(05 0C):
C
C)
:C
1
90
80
Terminal 1-2 Output Voltage
X 100 (%)
Terminal 1-3 Input Voltage
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
(4B
0
10
20
30
40
50
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
Rotational Travel (%)
Rotational Travel (%)
Rotational Travel (%)
REV. 10/14
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
O 引言
目前国内已经将扩频、超窄带通信、多载波调制、自适应跳频、正交频分复用(OFDM)等技术应用于自动抄表系统。但由于我国低压电网环境恶劣,以上技术的应用效果始终不理想。工频畸变是双向工频自动通信(Two Way Automatic Communication,TWAC)的简称,与载波通信相比具有有效传输距离长,通信可靠,信号可通过变压器等优势。
1 系统组成
...[详细]