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參數(shù)資料
| 型號(hào)： | SMF03 |
| 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(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 52K |
| 代理商： | SMF03 |
2001 Mar 15
2
BCcomponents
Product specification
St and-up miniat ure power res is t ors
SMW0 2/0 3/0 5
SMF0 2/0 3/0 5
FEATURES
High power dissipation in small
volume
High pulse load handling
capabilities
2e pitch mounting
Designed in stand-up configuration
for stand-up mounting.
APPLICATIONS
Ballast switching
Power supplies
Shunts.
DESCRIPTION
SMW
: 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.
SMF
: The resistor element is a metal
film resistor consisting of a metal layer
deposited over a high grade ceramic
rod. The resistive film is adjusted to
final value by means of a helical
groove. The leads are connected to the
caps by welding.
SMW/SMF
: 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 body and lead ends are
housed within a rectangular ceramic
case which is non-flammable, will not
melt even at high overloads and is
resistant to most commonly used
cleaning solvents, in accordance with
“MIL-STD-202E, method 215”
and
“IEC 60068-2-45”
.
QUICK REFERENCE DATA
Note
1.
Higher values are available on request.
DESCRIPTION
VALUE
SMW02
SMF02
220
to
47 k
SMW03
SMF03
620
to
47 k
SMW05
SMF05
620
to
47 k
Resistance range; note
1
0.1 to
200
0.1 to
560
±
5%; E24 series
300
°
C
3 W
40/200/56
IEC 60115-1
0.1 to
560
Resistance tolerance
Maximum permissible body temperature
Rated dissipation at T
amb
= 70
°
C
Climatic category (IEC 60068)
Basic specification
Stability after:
load, 1000 hours
climatic tests
short time overload
Insulation voltage
2 W
5 W
R/R max.:
±
5% + 0.1
R/R max.:
±
3% + 0.1
R/R max.:
±
2% + 0.1
>
2000 V
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