C&H Technology RPH100 - Manual (Page 4)

RPH 100
Vishay Sfernice Power Resistor for Mounting onto a Heatsink
Thick Film Technology
www.vishay.com For technical questions, contact: [email protected] Document Number: 50046
3 Revision: 10-Oct-08
OVERLOADS
In any case the applied voltage must be lower than 2 U
n
.
U
max.
< 2 U
n
< 3800 V.
Short time overload: 4 P
n
/5 s.
Accidental overload: The values indicated on the graph below are applicable to resistors in air or mounted onto a heatsink.
POWER RATING CHART
For resistor mounted onto a heatsink with thermal resistance of 0.45 °C/W.
MARKING
Series. style, ohmic value (in
Ω). tolerance (in %), manufacturing date, SFERNICE trade mark.
ORDERING INFORMATION
RCH 25 3.3 k
Ω
± 5 % R XXX
MODEL STYLE RESISTANCE VALUE TOLERANCE
Optional
± 1 %
± 2 %
± 5 %
CONNECTIONS
V: M4 screw
CUSTOM DESIGN
Options
on request
TCR, shape,
etc.
OVERLOAD DURATION IN s
ENERGY IN JOULES
0.1
1
10
100
1.10 1.10 -7 -6
ENERGY CURVE
1000
1.10 -5 1.10 -4 1.10 -3 1.10 -2 1.10 -1 1
AMBIENT TEMPERATURE IN °C
%
RATED POWER
80
60
40
20
0
0 20 40 60 80 100 120 140
100