UTL Series
Silicone Coated Power Resistors
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Resistances from 0.1 to 8.2K Ohms
Power Rating 1 to 5 Watts
Resistance Tolerances of ±5%
Non-Inductive Windings Available
High Pulse Handling
Available in Bulk, Tape & Reel, and Ammo Pack
SPECIFICATIONS
Specification
Tolerances
Temperture Coefficient
Temperature Range
Climatic Category ( IEC 60068 )
Basic Specification
Maximum Voltage
Value
±5% ( 1, 3, and 10% on Request )
<10Ω : 0 to 600 ppm/°C
≥10Ω
: -80 to +140 ppm/°C
-40°C to +200°C
40 / 200/ 56
IEC60 115-1
PxR
Environmental Performance
Load Life
( 1000h at rated power, 1.5h ON, 0.5h OFF )
Moisture Resistance
( 56d @ 40°C, 90-95% RH )
Thermal Shock
( 30m @ -40°C, 30m @ +200°C, 5 cycles)
10X Overload
( 5s )
Vibration
( 10 to 500Hz, 10g, 6h )
Ohmic Range
MIN
0.1
0.1
0.1
0.1
MAX
1
2.4K
4.7K
5.1K
8.2K
ΔR
±5% + 0.1Ω
±1% + 0.05Ω
±1% + 0.05Ω
±2% + 0.1Ω
±0.5% + 0.05Ω
Dimensions
A
( MAX )
0.40 [10.0]
0.51 [13.0]
0.51 [13.0]
0.67 [17.0]
B
( MAX )
0.17 [4.3]
0.22 [5.5]
0.22 [5.5]
0.29 [7.5]
C
±0.002” [±0.05mm]
Type
Power Rating
( Watts @ 40°C )
Maximum
Working
Voltage
UTL-1
UTL-2
UTL-3
UTL-5
1
1
2
3
5
0.031 [0.8]
0.031 [0.8]
0.031 [0.8]
0.031 [0.8]
50
97
124
202
For non-inductive windings, divide maximum resistance by 2
Power Derating Curve
120
100
Power ( % )
80
60
40
20
0
-40
0
40
80
120
160
200
240
Ordering Information:
For Non-Inductive Windings, insert the letter “N” ( i.e. UTLN-5 )
Part Number - Resistance - Tolerance - Packing
Example:
UTL-5 100 Ohm 5% Tape & Reel
Riedon Inc.
REV 11/2006
Ambient Temperature (°C)
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page: 56
RIEDON [ RIEDON POWERTRON ]
