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2000 Oct 20
4
BCcomponents
Product specification
Cemented wirewound resistors
AC01/03/04/05/07/10/15/20
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of
±5%.
The values of the E24 series are in accordance with “IEC publication 60063”.
Limiting values
Note
1. The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60266”.
The maximum permissible hot-spot temperature is 350
°C.
DERATING
The power that the resistor can dissipate depends on the operating temperature; see Fig.1.
TYPE
LIMITING VOLTAGE(1)
(V)
LIMITING POWER
(W)
Tamb =40 °CTamb =70 °C
AC01
1
0.9
AC03
3
2.5
AC04
4
3.5
AC05
5
4.7
AC07
7
5.8
AC10
10
8.4
AC15
15
12.5
AC20
20
16.0
VP
n
R
×
=
Fig.1 Maximum dissipation (Pmax) as a function of the ambient temperature (Tamb).
40
0
40
70
200
100
90
50
0
Pmax
(%)
T
( C)
amb
o
MRA574
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