Datasheet

Document Number: 50005
Revision 14-Jan-05
www.vishay.com
16
RTO 20
Vishay Sfernice
For technical questions, contact [e-mail]
ORDERING INFORMATION
RTO 20 F 100k ± 10% xxx
MODEL STYLE CONNECTIONS RESISTANCE VALUE TOLERANCE CUSTOM DESIGN
F: Radial Leads ± 1% Optional
C: Surface Mount ± 2% on request:
± 5% special TCR,
± 10% shape etc.
Power Resistor Thick Film Technology
PACKAGING
Tube of 50 units
OVERLOADS
In any case the applied voltage must be lower than the maximum overload voltage of 375V.
The values indicated on the graph below are applicable to resistors in air or mounted onto a heatsink.
POWER RATING CHART
The temperature of the heatsink should be maintained within the limits specified.
To improve the thermal conductivity, surfaces in contact should be coated with a silicone grease and the torque applied on
the screw for tightening should be around 1Nm.
10
-6
10
-5
10
-4
10
-3
10
-2
ENERGY IN JOULES
OVERLOAD DURATION IN SECONDS
ENERGY CURVE
0 25 40 60 80 100 120 140 155
100
75
50
25
0
% RATED POWER
HEATSINK TEMPERATURE IN DEGREES CELSIUS
0.01
0.1
1
10
MARKING
Model, Style, Resistance Value (in Ω), Tolerance (in %), Manufacturing Date, VISHAY trademark.