UAL50-2R5F8 [RIEDON]
RES CHAS MNT 2.5 OHM 1% 50W;
| 型号： | UAL50-2R5F8 |
| 厂家： | 
RIEDON POWERTRON |
| 描述： | RES CHAS MNT 2.5 OHM 1% 50W |
| 文件： | 总4页 (文件大小：257K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UAL Series
Aluminum Housed Power Wirewound Resistors
• Power Rating 5 to 300Watts
• High Temperature: -55°C to +275°C
• Excellent Pulse Handling
• Resistances from 0.01 to 250k Ohms
• Tolerance to ±0.01%
• Low TCR: ± 20ppm/K Standard
• Various Terminal Option Available
• All Welded Construction
UAL-25-4T
UAL-25-4
UAL-25-4TR
SPECIFICATIONS
MIL-R-39009
MIL-R-18546
Style
Power Rating ( W @ 25°C )
Resistance
Range1
Type
Commercial
7.5 a
MIL
5 a
Free Air
4.5
0.01 to 22K
0.01 to 47K
0.01 to 90K
0.01 to 250K
0.01 to 70K
0.01 to 50K
0.01 to 50K
0.01 to 68K
UAL-5
UAL-10
RER-60 / RE-60
RER-65 / RE-65
RER-70 / RE-70
RER-75 / RE-75
10 a
25 b
10 a
20 b
30 c
75 d
-
7.5
12
20
40
-
UAL-25
50 c
UAL-50
100 d
180 d
250 d
UAL-100²
UAL-180²
UAL-250²
UAL-300²
-
120 d
-
100
75
RER-80 / RE-80
-
300 e
1
For non-inductive windings, divide maximum resistance by 2
E-24 / E-96, check with factory on availability of other values
2
a
b
c
d
e
Heatsink Required : 0.040 [1.0] Alum. Plate, 129 in2 [832 cm2] or equiv.
Heatsink Required : 0.040 [1.0] Alum. Plate, 167 in2 [1077 cm2] or equiv.
Heatsink Required : 0.059 [1.5] Alum. Plate, 291 in2 [1877 cm2] or equiv.
Heatsink Required : 0.125 [3.2] Alum. Plate, 294 in2 [1896 cm2] or equiv.
Heatsink Required : 0.125 [3.2] Alum. Plate, 895 in2 [5780 cm2] or equiv.
Ordering Information
For Non-Inductive Windings / insert the letter “N” ( i.e. UALN-25 )
Part Description: Part Type - Resistance - Tolerance - TCR ( If not standard )
Example: UAL-25 10 Ohm 1%
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
© Riedon, Inc.
www.riedon.com
sales@riedon.com
Revised: 201812_005
UAL Series
Aluminum Housed Power Wirewound Resistors
SPECIFICATIONS(continued)
Specification
Value
Tolerances
±0.01% to ±10% ( 1% Standard )
Temperature Coefficient
>10W : ±20ppm/K
1W to10W : ±50ppm/K
<1W : Call Factory
Temperature Range
Dielectric Strength
Constuction
-55°C to +275°C
UAL-5,10: 1500 VAC ; UAL-25: 2500 VAC ; UAL-50: 3500VAC ; Others: 5500VAC
Centerless ground ceramic core
Matte Tin over Copper
High-temperature epoxy molding Compound, UL94-V0
Anodized aluminum housing
All welded terminations
Environmental Performance
DR
(MIL-STD 202)
Dielectric
±0.2% + 0.05W
Load Life
±1% + 0.05W
Storage
±0.2% + 0.05W
Moisture Resistance
Thermal Shock
5X Overload ( 5s )
Shock
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.1% + 0.05W
Vibration
±0.1% + 0.05W
Optional Lead Configuation
*Call factory for quote
Wire, Flexible, Teflon, Quick Disconnect, Flying Leads, Formed
Power Derating Curve
120
100
80
Free-air Derating
A : UAL-5, UAL-10
B : UAL-25
C : UAL-50, UAL-100, UAL-250
D : UAL-300
A
60
B
40
20
0
C
D
0
50
100
150
200
250
300
350
Ambient Temperature (°C)
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
© Riedon, Inc.
www.riedon.com
sales@riedon.com
Revised: 201812_005
UAL Series
Aluminum Housed Power Wirewound Resistors
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
Type
±0.005 ±0.005 ±0.031 ±0.120 ±0.015 ±0.015 ±0.015 ±0.010 ±0.010 ±0.010 ±0.005 ±0.015 ±0.006 ±0.120 ±0.031 ±0.002 ±0.031
[±0.13] [±0.13] [±0.8] [±3.10] [±0.4] [±0.4] [±0.4] [±0.25] [±0.25] [±0.25] [±0.13] [±0.4] [±0.15] [±3.10] [±0.8] [±0.05] [±0.8]
0.444 0.490 0.600 1.125 0.334 0.646 0.320 0.065 0.140 0.078 0.093 0.078 0.050 0.266 0.245 0.051 0.085
[11.3] [12.4] [15.2] [28.5] [8.5] [16.4] [8.1] [1.7] [3.6] [2.0] [2.4] [2.0] [1.3] [6.8] [6.2] [1.30] [2.2]
UAL-5
0.562 0.625 0.750 1.320 0.430 0.800 0.400 0.075 0.190 0.093 0.093 0.102 0.080 0.312 0.312 0.098 0.160
[14.3] [15.9] [19.1] [33.5] [10.9] [20.3] [10.2] [1.9] [4.8] [2.4] [2.4] [2.6] [2.0] [7.9] [7.9] [2.49] [4.0]
UAL-10
UAL-25
UAL-50
0.719 0.781 1.062 1.870 0.530 1.080 0.560 0.085 0.260 0.172 0.125 0.125 0.080 0.438 0.391 0.098 0.185
[18.3] [19.8] [27.0] [47.5] [13.5] [27.4] [14.2] [2.2] [6.6] [4.4] [3.2] [3.2] [2.0] [11.1] [9.9] [2.49] [4.7]
1.563 0.844 1.968 2.720 0.615 1.140 0.615 0.085 0.300 0.196 0.125 0.125 0.080 0.438 0.422 0.098 0.185
[39.7] [21.4] [50.0] [70.0] [15.6] [29.0] [15.6] [2.2] [7.6] [5.0] [3.2] [3.2] [2.0] [11.1] [10.7] [2.49] [4.7]
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
© Riedon, Inc.
www.riedon.com
sales@riedon.com
Revised: 201812_005
UAL Series
Aluminum Housed Power Wirewound Resistors
Dimensions(continued)
A
Aa
B
C
D
E
F
G
H
J
K
L
M
N
P
Mtg.
Screw
Type*
±0.005
[±0.13]
±0.005
[±0.13]
±0.005
[±0.13]
±0.031
[±0.8]
±0.062
[±1.6]
±0.015
[±0.4]
±0.015
[±0.4]
±0.015
[±0.4]
±0.010
[±0.25]
±0.015
[±0.4]
±0.015
[±0.4]
±0.005
[±0.13]
±0.015
[±0.4]
±0.015
[±0.4]
2.750
[69.9]
2.250
[57.15]
3.500
[88.9]
5.478
[139]
1.800
[45.7]
2.813
[71.5]
1.750
[44.5]
0.188
[4.78]
0.800
[20.3]
0.375
[9.52]
0.188
[4.78]
-
-
-
-
-
12-24
12-24
1/4-20
(2) #8
(2) #8
(4) #8
UAL-100
UAL-180
UAL-250
2.750
[69.9]
2.500
[63.5]
3.500
[88.9]
5.480
[139]
2.125
[54]
3.000
[76.2]
2.190
[55.6]
0.250
[6.4]
0.950
[24.1]
0.375
[9.5]
0.188
[4.8]
0.200
[5.1]
3.875
[98.4]
3.000
[76.2]
2.500
[63.5]
4.500
[114]
7.000
[178]
2.125
[54]
3.00
[76.2]
2.190
[55.6]
0.250
[6.4]
1.000
[25.4]
0.312
[7.9]
0.188
[4.8]
0.200
[5.1]
1.188
[30.7]
*Built to Mil-Spec standard. Not for new design.
F
G
L
N
A
B
C
D
E
H
J
K
M
±0.010
[±0.3]
±0.010
[±0.3]
±0.010
[±0.3]
±0.010
[±0.3]
Type*
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
MAX
2.854
[72.5]
6.675
[167.0]
1.646
[41.8]
1.791
[45.5]
4.319
[109.7]
3.504
[89.0]
2.252
[57.2]
0.807
[20.5]
0.409
[10.4]
0.217
[5.5]
0.260
[6.6]
4.819
[122.4]
1.752
[44.5]
UAL-250A
2.854
[72.5]
7.260
[184.4]
1.646
[41.8]
1.791
[45.5]
5.028
[127.7] [104.0]
4.094
2.323
[59.0]
0.807
[20.5]
0.488
[12.4]
0.217
[5.5]
0.260
[6.6]
5.567
[141.4]
2.047
[52.0]
UAL-300A
*Commercial equivalent for new designs. Cost effective alternative.
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
© Riedon, Inc.
www.riedon.com
sales@riedon.com
Revised: 201812_005
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