UAL10-300RF8 Datasheet, PDF (1/4 Pages) Riedon Powertron – Aluminum Housed Power Wirewound Resistors

UAL Series
Aluminum Housed Power Wirewound Resistors
UAL-25-4T
UAL-25-4
UAL-25-4TR
• Power Rating 5 to 300Watts
• High Temperature: -55°C to +275°C
• Excellent Pulse Handling
• Resistances from 0.005 to 250kOhms
• Tolerance to ±0.01%
• Low TCR: ± 20ppm/K Standard
• Various Terminal Option Available
• All Welded Construction
SPECIFICATIONS
Type
UAL-5
UAL-10
UAL-25
UAL-50
UAL-100
UAL-180
UAL-250
UAL-300
MIL-R-39009
MIL-R-18546
Style
RER-60 / RE-60
RER-65 / RE-65
RER-70 / RE-70
RER-75 / RE-75
-
RER-80 / RE-80
-
Power Rating ( W @ 25°C )
Commercial
MIL
Free Air
7.5 ^a
5^a
4.5
Resistance
Range¹
0.01 to 22K
10 ^a
10 ^a
7.5
0.005 to 10K
25 ^b
20 ^b
12
0.005 to 36K
50 ^c
30 ^c
20
0.01 to 86K
100 ^d
75 ^d
40
0.01 to 70K
180 ^d
-
-
0.01 to 50K
250 ^d
120 ^d
100
0.01 to 50K
300 ^e
-
75
0.01 to 68K
1 _{For non-inductive windings, divide maximum resistance by 2}
a _{Heatsink Required : 0.040 [1.0] Alum. Plate, 129 in}2 _{[832 cm}2_{] or equiv.}
b _{Heatsink Required : 0.040 [1.0] Alum. Plate, 167 in}2 _{[1077 cm}2_{] or equiv.}
c _{Heatsink Required : 0.059 [1.5] Alum. Plate, 291 in}2 _{[1877 cm}2_{] or equiv.}
d _{Heatsink Required : 0.125 [3.2] Alum. Plate, 294 in}2 _{[1896 cm}2_{] or equiv.}
e _{Heatsink Required : 0.125 [3.2] Alum. Plate, 895 in}2 _{[5780 cm}2_{] 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
www.riedon.com
[phone]
[phone]
05/16