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參數(shù)資料
| 型號(hào)： | SFR251R85% |
| 英文描述： | WIDERSTAND METALLFILM 1R8 250V 0.4W |
| 中文描述： | WIDERSTAND METALLFILM 1R8 250V 0.4瓦 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 111K |
1998 Nov 18
2
Philips Components
Product specification
Cemented wirewound resistors
AC01/03/04/05/07/10/15/20
FEATURES
High power dissipation in
small volume
High pulse load handling
capabilities.
APPLICATIONS
Ballast switching
Shunt in small electric motors
Power supplies.
DESCRIPTION
The resistor element is a resistive
wire which is wound in a single layer
on a ceramic rod. Metal caps are
pressed over the ends of the rod.
The ends of the resistance wire and
the leads are connected to the caps
by welding. Tinned copper-clad iron
leads with poor heat conductivity are
employed permitting the use of
relatively short leads to obtain stable
mounting without overheating the
solder joint.
The resistor is coated with a green
silicon cement which is not resistant
to aggressive fluxes. The coating is
non-flammable, will not drip even at
high overloads and is resistant to
most commonly used cleaning
solvents, in accordance with
“MIL-STD-202E”and
“IEC 60068-2-45”
QUICK REFERENCE DATA
DESCRIPTION
VALUE
AC01
0.1
to
2 k
AC03
0.1
to
4.7 k
AC04
0.1
to
6.8 k
AC05
0.1
to
8.2 k
±
5%; E24 series
350
°
C
5 W
4.7 W
40/200/56
IEC 60115-1
AC07
0.1
to
15 k
AC10
0.68
to
27 k
AC15
0.82
to
39 k
AC20
1.2
to
56 k
Resistance range
Resistance tolerance
Maximum permissible body temperature
Rated dissipation at T
amb
= 40
°
C
Rated dissipation at T
amb
= 70
°
C
Climatic category (IEC 60068)
Basic specification
Stability after:
load, 1000 hours
climatic tests
short time overload
1 W
0.9 W
3 W
2.5 W
4 W
3.5 W
7 W
5.8 W
10 W
8.4 W
15 W
12.5 W
20 W
16 W
R/R max.:
±
5% + 0.1
R/R max.:
±
1% + 0.05
R/R max.:
±
2% + 0.1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SFR25-220K-5 | WIDERSTAND METALLFILM 220K 250V 0.4W |
| SFR25-220R-5 | WIDERSTAND METALLFILM 220R 250V 0.4W |
| SFR25-22K-5 | WIDERSTAND METALLFILM 22K 250V 0.4W |
| SFR25-22R-5 | WIDERSTAND METALLFILM 22R 250V 0.4W |
| SFR25-270K-5 | WIDERSTAND METALLFILM 270K 250V 0.4W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SFR25220K | 制造商:Vishay Intertechnologies 功能描述:RESISTOR SFR25 220K |
| SFR25-220K-5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:WIDERSTAND METALLFILM 220K 250V 0.4W |
| SFR25220R | 制造商:Vishay Intertechnologies 功能描述:RESISTOR SFR25 220R |
| SFR25-220R-5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:WIDERSTAND METALLFILM 220R 250V 0.4W |
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