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參數(shù)資料
| 型號： | WS20.25W4K7205BM |
| 廠商： | Sharma Electro Components Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Sharma Potentiometers |
| 中文描述： | 夏爾馬電位 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大小： | 385K |
| 代理商： | WS20.25W4K7205BM |
Features
■
Hot-Molded / Industrial / Sealed
■
Locking-Bushing / Standard-Bushing
■
Meet MIL-R-94
Electrical Characteristics
Standard Resistance Range……….. A: 100 to 4M7 ohms
…………… B/C: 1K to 1M ohms
Resistance Tolerance………….………
±
5%,
±
10%,
±
20%
Absolute Minimum Resistance…………………… 15 ohms
(for total resistance values of 100 to 820 ohms inclusive)
………………………………………………………… 1%
(for total resistance values of 1K to 4700K ohms inclusive)
Contact Resistance Variation……….…………………… 5%
Insulation Resistance (100 VDC)….1,000 M ohms minimum
Power Rating: at 70
℃
…………………………………… A: 0.5 watt
………………………………………. B/C: 0.25 watt
at 125
℃
…………………… 0 watt
Environmental Characteristics
Temperature Range……….…………………-55
℃
to +125
℃
Vibration………………………………………………….. 15G
Shock……………………………………………………. 100G
Load Life: 1,000 hours, 70
℃
………………………………A: 0.5 watt
…………………………. B/C: 0.25 watt
Total Resistance Shift…………………………….
±
10%
Rotational Life
WS-1/1A (Standard-Bushing Type)……… 10,000 cycles
Total Resistance Shift………………………
±
10%
WS-2/2A(Locking-Bushing Type)……………… 500 cycles
Total Resistance Shift……………………………
±
10%
Mechanical Characteristics
Total Mechanical Angle……………………… 270
o
minimum
Torque
Starting Torque……………………………… 0.8 to 5 N
cm
Lock Torque(Locking-Bushing Type)…………… 8 N
cm
Weight………………………………… Approximately 8 gram
How To Order
WS— 1 —
0.5
—4K7— 16— 3 —
A—
M
①
②
③
④
⑤
⑥
⑦
⑧
①
Model
②
Bushing Style:
1-- Standard bushing; 2--Lock Bushing
③
Power Rating
0.5W--line
ar
taper; 0.25W--log taper & anti-log taper
④
Standard Resistance: see standard resistance table
⑤
Length of Operating shaft (from mounting surface)
⑥
Shaft Style: 3--Slotted shaft; 5--Flatted shaft
⑦
Taper:
Blank
--Line
a
r; B—Log; C--Anti-Log
⑧
Resistance Tolerance
J = 5%, K = 10%, M = 20%
WS Carbon Composition Potentiometer
Standard Resistance Table (ohms)
100
1K
10K
120
1K2
12K
150
1K5
15K
180
1K8
18K
220
2K2
22K
270
2K7
27K
330
3K3
33K
390
3K9
39K
470
4K7
47K
560
5K6
56K
680
6K5
68K
820
8K2
82K
100K
120K
150K
180K
220K
270K
330K
390K
470K
560K
680K
820K
1M
1M2
1M5
1M8
2M2
2M7
3M3
3M9
4M7
Special resistance available.
Sharma
Potentiometers
Tel: (949)642-7324
SECI Engineers & Buyers' Guide
Fax: (949)642-7327
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