UV Series
Ceramic Wirewound Resistors
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•
•
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Flameproof Inorganic Construction
Resistances from 0.01 to 91kOhms
Tolerance to ±0.01%
Low Temperature Coefficient
Power Rating to 10Watts
All Welded Resistance Element
Non-Inductive Windings are Available
SPECIFICATIONS
Type
UV-2
UV-3
UV-5
UV-7
UV-10
Power Rating
W @ 70°C
Resistance
1
Range
0.01 to 22k
0.01 to 22k
0.01 to 45k
0.01 to 65k
0.01 to 91k
±0.06 [±1.5]
H
±0.04 [±1.0]
L
±0.04 [±1.0]
D
±0.015 [±0.4]
W
±0.002 [±0.05]
d
2
2
3
5
7
10
0.80 [20.3]
1.00 [25.4]
1.00 [25.4]
1.52 [38.7]
1.38 [35.1]
0.435 [11.0]
0.475 [12.1]
0.520 [13.2]
0.520 [13.2]
0.635 [16.1]
1
0.275 [7.0]
0.320 [8.1]
0.350 [8.9]
0.380 [9.7]
0.480 [12.2]
0.200 [5.1]
0.200 [5.1]
0.200 [5.1]
0.200 [5.1]
0.300 [7.6]
0.032 [0.8]
0.032 [0.8]
0.032 [0.8]
0.040 [1.0]
0.040 [1.0]
2
For non-inductive windings / divide maximum resistance by 2
Lead Diameter: 18 AWG = 0.040” / 20 AWG = 0.032”
Ordering Information
For Non-Inductive Windings / insert the letter “N” ( i.e. UVN-5 )
Part Number - Resistance - Tolerance - TCR ( If not standard )
Example: UV-5
100 Ohm 1%
Riedon Inc.
1.01
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 137
UV Series
Ceramic Wirewound Resistors
SPECIFICATIONS
(continued)
Specification
Tolerances
Temperature Coefficient
Value
±0.01% to ±10% ( 1% Standard )
>10W : ±20ppm/K
1W to10W : ±50ppm/K
<1W : Call Factory
-55°C to +275°C
1500 VAC
Centerless ground ceramic core
Tinned copper or copperweld leads
High temperature / inorganic potting compound
All welded terminations
Temperature Range
Dielectric Strength
Constuction
Environmental Performance
(MIL-STD 202)
DR
±0.2% + 0.05W
±1% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.2% + 0.05W
±0.1% + 0.05W
±0.1% + 0.05W
Dielectric
Load Life
Storage
Moisture Resistance
Thermal Shock
5X Overload ( 5s )
Shock
Vibration
Power Derating Curve
120
100
Power ( % )
80
60
40
20
0
0
50
100
150
200
250
300
350
Ambient Temperature (°C)
Riedon Inc.
1.01
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 138
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