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参数资料
| 型号： | R500CH20DF6 |
| 厂商： | WESTCODE SEMICONDUCTORS LTD |
| 元件分类： | 晶闸管 |
| 英文描述： | 4980 A, 2000 V, SCR |
| 封装： | 101A281, 3 PIN |
| 文件页数： | 8/13页 |
| 文件大小： | 357K |
| 代理商： | R500CH20DF6 |
WESTCODE Positive development in power electronics
R500CH20 to R500CH28
Provisional Data Sheet. Types R500CH20 to R500CH28 Issue 1
Page 4 of 13
January, 2000
10.0 On-State Energy per Pulse Characteristics
These curves enable rapid estimation of device dissipation to be obtained for conditions not covered by
the frequency ratings.
Let Ep be the Energy per pulse for a given current and pulse width, in joules
Let Rth(J-Hs) be the steady-state d.c. thermal resistance (junction to sink)
and TSINK be the heat sink temperature.
Then the average dissipation will be:
()
(
)
Hs
J
th
AV
SINK
P
AV
R
W
T
and
f
E
W
=
=
125
.)
(max
11.0 Reverse recovery ratings
(i) QRA is based on 50% IRM chord as shown in Fig. 1 below.
Fig. 1
(ii) QRR is based on a 150
s integration time.
i.e.
∫
=
s
RR
dt
i
Q
150
0
.
(iii)
2
1
t
Factor
K
=
12.0 Reverse Recovery Loss
12.1 Determination by Measurement
From waveforms of recovery current obtained from a high frequency shunt (see Note 1, Page 5) and
reverse voltage present during recovery, an instantaneous reverse recovery loss waveform must be
constructed. Let the area under this waveform be E joules per pulse. A new heat sink temperature can
then be evaluated from:
()
(
)
Hs
J
th
original
SINK
new
SINK
R
f
k
E
T
+
=
)
(
)
(
where k = 0.227 (°C/W)/s
E = Area under reverse loss waveform per pulse in joules (W.s.)
f = rated frequency Hz at the original heat sink temperature.
Rth(J-Hs) = d.c. thermal resistance (°C/W).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R500L | 制造商:Mallory Sonalert Products Inc 功能描述:Res Wirewound POT 500 Ohm 10% 3W 1(Elec)/1(Mech)Turn 6.35mm (30.96 X 32.54mm) Solder Lug Panel Mount |
| R500M | 制造商:Omron Corporation 功能描述: |
| R500-PS-V | 制造商:Thomas & Betts 功能描述:NON-INS PRL SPLICE, 500 MCM, CMA 47 制造商:Thomas & Betts 功能描述:Splice Terminal 36.52mm 33.78mm Tin |
| R-500-W/FOAM ORG | 功能描述:存储箱与外壳 DISC MFG 5/01 12.0X13.0X6.0 ORG RoHS:否 制造商:Tektronix 颜色:Black 材料:Polypropylene 尺寸:23.25 in L x 20.75 in W x 9 in H |
| R-500-W/FOAM-BLACK | 功能描述:存储箱与外壳 DISC MFG 5/01 12.0X13.0X6.0 BLACK RoHS:否 制造商:Tektronix 颜色:Black 材料:Polypropylene 尺寸:23.25 in L x 20.75 in W x 9 in H |
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