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| 型號(hào)： | PWC2010-33RJI |
| 英文描述： | RESISTOR SMD 33R |
| 中文描述： | 電阻貼片33R |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 295K |
| 代理商： | PWC2010-33RJI |
Description of Performance Tests
t
p
t
i
t
1
t
2
t
V
Rectangular Pulses
e
t
V
Exponential Pulse
0
V
Single Impulse
The single impulse graph was the result of 50 impulses of
rectangular shape applied at one minute intervals. The limit of
acceptance was a shift in resistance of less than 1% from the
initial value. The power applied was subject to the restrictions
of the maximum permissible impulse voltage graph as shown.
Continuous Load Due to
Repetitive Pulses
The continuous load graph was obtained by applying repetitive
rectangular pulses where the pulse period (tp) was adjusted so
that the average power dissipated in the resistor was equal to
its rated power at 70°C. Again the limit of acceptance was a
shift in resistance of less than 1% from the initial value.
The formula used to calculate the average power for repetitive
pulses is shown below.
For a rectangular impulse
P =
For an exponential impulse P =
Where
R
t
p
=
= nominal resistance
time of the pulse period
(1/tp = pulse frequency)
=
peak voltage of the impulse
=
average power dissipation
of continuous pulses
=
impulse time of a rectangular pulse
T
e
=
time constant of an exponential pulse
V
P
t
i
V
2
t
i
R t
p
< Pnom
V
2
t
e
R 2t
p
< Pnom
3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PWC2010-33RJI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 2010 33R |
| PWC2010-3K3F | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 2010 1% 3K3 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 2010, 1%, 3K3 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 2010, 1%, 3K3; Product Range:WELWYN - PWC Series; Resistance:3.3kohm; Power Rating:750mW; Resistance Tolerance: 1%; Resistor Case Style:2010 [5025 Metric]; Resistor Element Material:Thick Film; Temperature Coefficient: ;RoHS Compliant: Yes |
| PWC2010-3K3JI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 2010 3K3 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 2010 3K3 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 2010 3K3; Product Range:WELWYN - PWC Series; Resistance:3.3kohm; Power Rating:750mW; Resistance Tolerance: 5%; Resistor Case Style:2010 [5025 Metric]; Resistor Element Material:Thick Film; Temperature Coefficient: ;RoHS Compliant: Yes |
| PWC2010-3K3JI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 2010 3K3 |
| PWC2010-470RF | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 2010 1% 470R 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 2010, 1%, 470R 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 2010, 1%, 470R; Product Range:WELWYN - PWC Series; Resistance:470ohm; Power Rating:750mW; Resistance Tolerance: 1%; Resistor Case Style:2010 [5025 Metric]; Resistor Element Material:Thick Film; Temperature Coefficient: ;RoHS Compliant: Yes |
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