參數(shù)資料
型號(hào): SMF02
廠商: Electronic Theatre Controls, Inc.
英文描述: Stand-up miniature power resistors
中文描述: 站立微型功率電阻
文件頁數(shù): 4/7頁
文件大?。?/td> 52K
代理商: SMF02
2001 Mar 15
4
BCcomponents
Product specification
Stand-up miniature power resistors
SMW02/03/05
SMF02/03/05
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
.
TYPE
LIMITING VOLTAGE
(1)
(V)
LIMITING POWER
(W)
SMW02
2
SMF02
350
SMW03
3
SMF03
350
SMW05
5
SMF05
600
V
P
n
R
×
=
V
P
n
R
×
=
V
P
n
R
×
=
The maximum permissible hot-spot temperature is 300
°
C,
and the minimum breakdown voltage of the
encapsulation is 2000 V.
D
ERATING
The power that the resistor can dissipate depends on the
operating temperature; see
Fig.1
.
Fig.1
Maximum dissipation (P
max
) as a function of
the ambient temperature (T
amb
).
MBG629
70
100
40
50
Tamb( C)
(%rated
0
0
50
100
200
150
Pmax
P
ULSE
LOADING
CAPABILITY
Detailed pulse loading information is available on request.
Application information
M
OUNTING
The resistors must be mounted in such a way that no stress
is exerted on the leads and that thermal expansion is
possible over the temperature range.
Ensure that the
temperature rise of the resistor body by conducted or
convected heat, does not affect nearby components or
materials.
The temperature rise at the soldering point of the
leads must not reach the melting point of the solder. The
temperature rise at the soldering point as a function of
dissipated power is shown in
Fig.2
.
Fig.2
Solder spot temperature rise (
T) as a
function of dissipated power.
0
40
120
%Pnom
160
120
40
0
80
MBG543
80
T
(K)
5 W
3 W
2 W
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