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參數資料
| 型號： | MP30A25 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Power Rheostats 150 Watt |
| 中文描述： | 150瓦功率變阻器 |
| 文件頁數： | 1/2頁 |
| 文件大?。?/td> | 92K |
| 代理商： | MP30A25 |
www.vishay.com
7
MP30
Vishay Angstrohm
Document Number: 66105
Revision 25-Aug-00
MP30
MODEL
Power Rheostats
150 Watt
— Resistance value
— Amps
— Date code
A
BUSHING AND SHAFT CONFIGURATION
25
VALUE
NOTE:
For Additional Features: Submit detailed drawing information when ordering “non-standard” parts.
ORDERING INFORMATION
* All other intermediate resistance values are available
and can be manufactured on a normal delivery cycle.
FEATURES
Diameter 4" [101.60mm]
Depth behind panel 1 3/4" [44.45mm]
Shaft 1/4" [6.35mm] diameter
Rotation 300
°
±
5
°
and weight 1.014 pounds (460 grams)
Total ohms available in higher ranges up to 25,000 ohms
Mounts on panels up to 1/4" [6.35mm] by means of a 3/8" [9.52mm], 32 bushing
and hex nut
Non-turn lugs require 3/16" [4.76mm] hole, 1/2" [12.70mm] below center of shaft -
Model"A" shaft
U. L. Approved
DIMENSIONS
in inches [millimeters]
MAXIMUM
AMPS
17.350
12.247
8.660
7.071
5.477
4.472
3.873
3.162
2.449
1.732
1.414
1.225
0.866
0.707
0.612
0.548
0.447
0.387
0.274
0.244
0.173
0.141
0.122
TOTAL
OHMS
0.5
1.0
2.0
3.0
5.0
7.5
10.0
15.0
25.0
50.0
75.0
100.0
200.0
300.0
400.0
500.0
750.0
1000.0
2000.0
2500.0
5000.0
7500.0
10000.0
35
39
39
70
73
70
70
120
152
190
228
228
265
303
342
342
418
432
575
456
865
1000
1000
APPROXIMATE
STEPS
RESISTANCE VALUES*
MARKING
Angstrohm rheostat standard
wattage ratings are based on a
300
°
C rise in “free-air” in ambient
not exceeding + 40
°
C (shown). For
other applications, wattage ratings
are available based on 340
°
C rise in
"free-air" in ambient not exceeding
+ 25
°
C, and in other cases + 50
°
C.
DERATING
A = Standard Flatted Shaft
%
40
100
150 200
250
300 350
AMBIENT TEMP. DEG. CENTIGRADE
120
100
80
60
40
20
0
Knob # 552
2 1/2
[63.50] R
4
[101.60]
Dia.
2 7/16
[61.91]
(3) .169 [4.29] Holes
1 1/2
[38.10]
Dial # 548
2 1/4 [57.15]
3/4
[19.05]
1/4 [6.35]
1 3/4
[44.45]
7/8
[22.22]
3/8
[9.52]
1/2
[12.70]
3/8
[9.52]
3/32
[2.38]
7/32
[5.56]
1/16
[1.59]
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