MP25A1 [VISHAY]
Analog Circuit;
| 型号： | MP25A1 |
| 厂家： | 
VISHAY |
| 描述： | Analog Circuit |
| 文件： | 总1页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MP25
Vishay Angstrohm
Power Rheostats
100 Watt
FEATURES
• Diameter 3 5/32" [80.17mm]
• Depth behind panel 1 1/2" [38.10mm]
• Shaft 1/4" [6.35mm] diameter
• Rotation 300° 5°
• Weight 0.594 pounds (268 grams)
• 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. Listed, File No. E51076
DIMENSIONS in inches [millimeters]
RESISTANCE VALUES*
TOTAL MAXIMUM APPROXIMATE
OHMS
AMPS
STEPS
1 1/2
[38.10]
7/8
[22.22]
Knob # 552
0.5
1.0
2.0
3.0
5.0
7.5
10.0
15.0
25.0
14.140
10.000
7.071
5.774
4.472
3.652
3.162
2.582
2.000
1.414
1.155
1.000
0.707
0.557
0.500
0.447
0.365
0.316
0.224
0.200
0.141
0.115
0.100
30
30
56
66
56
66
3 5/32
[80.17]
Dia.
1/2
[12.70]
3/8
[9.52]
1/16
[1.59]
1 1/2
[38.10]
1/4
[6.35]
104
113
144
180
180
216
252
252
252
324
396
410
410
410
685
820
820
3/4
[19.05]
2 1/16
[52.39] R
Dial # 548
7/32
[5.56]
50.0
75.0
2 1/64
3/8 [9.52]
(3) .162 [4.11] Holes
[51.20]
3/32
[2.38]
100.0
200.0
300.0
400.0
500.0
750.0
1000.0
2000.0
2500.0
5000.0
7500.0
10000.0
2 1/4 [57.15]
DERATING
120
Angstrohm rheostat standard
wattage ratings are based on a
100
80
60
40
20
0
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.
40
100
150
200
250
300
350
* All other intermediate resistance values are available
and can be manufactured on a normal delivery cycle.
AMBIENT TEMP. DEG. CENTIGRADE
SPECIAL SHAFTS in inches [millimeters]
1/2
[12.70]
5/8
[15.88]
3/4
[19.05]
27/32
[21.43]
11/32 [8.73]
5/8 [15.88]
1/2 [12.70]
11/32 [8.73]
TYPE B: 1/2 [12.70], 11/32 [8.73]
Models. Slotted shaft with standard
bushing for 1/8 [3.18] panel.
TYPE C: 3/4 [19.05], 5/8 [15.88]
Models. Locking bushing with
slotted shaft for 1/4 [6.35] panel.
TYPE D: 5/8 [15.88], 1/2 [12.70]
Models. Locking bushing with
slotted shaft for 1/8 [3.18] panel.
TYPE E: 27/32 [21.43], 11/32 [8.73]
Models. Std. bushing and flatted shaft
w/screwdriver slot for 1/8 [3.18] panel.
MARKING
ORDERING INFORMATION
A
MP25
MODEL
25
VALUE
— Resistance value
— Amps
BUSHING AND SHAFT CONFIGURATION
A = Standard Flatted Shaft
— Date code
NOTE: For Additional Features: Submit detailed drawing information when ordering “non-standard” parts.
www.vishay.com
6
Document Number: 66104
Revision 25-Aug-00
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