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| 型號： | R1280NS24K |
| 廠商： | WESTCODE SEMICONDUCTORS LTD |
| 元件分類： | 晶閘管 |
| 英文描述： | 2571 A, 2400 V, SCR |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 702K |
| 代理商： | R1280NS24K |
WESTCODE
WESTCODE An IXYS Company
Distributed Gate Thyristor Types R1280NS18# to R1280NS25#
Data Sheet. Type R1280NS18# to R1280NS25# Issue 4
Page 3 of 12
March, 2003
Notes on Ratings and Characteristics
1.0 Voltage Grade Table
Voltage Grade
VDRM VDSM
V
VRRM
V
VRSM
V
VD
DC V
VR
DC V
18
1800
1900
1150
20
2000
2100
1250
21
2100
2200
1300
22
2200
2100
2200
1350
1300
24
2400
2100
2200
1450
1300
25
2500
2100
2200
1500
1300
2.0 Extension of Voltage Grades
This report is applicable to other and higher voltage grades when supply has been agreed by
Sales/Production.
3.0 Extension of Turn-off Time
This Report is applicable to other tq/re-applied dv/dt combinations when supply has been agreed by
Sales/Production.
4.0 Repetitive dv/dt
Higher dv/dt selections are available up to 1000V/s on request.
5.0 De-rating Factor
A blocking voltage de-rating factor of 0.13%/°C is applicable to this device for Tj below 25°C.
6.0 Snubber Components
When selecting snubber components, care must be taken not to use excessively large values of snubber
capacitor or excessively small values of snubber resistor. Such excessive component values may lead to
device damage due to the large resultant values of snubber discharge current. If required, please consult
the factory for assistance.
7.0 Rate of rise of on-state current
The maximum un-primed rate of rise of on-state current must not exceed 1500A/s at any time during
turn-on on a non-repetitive basis. For repetitive performance, the on-state rate of rise of current must not
exceed 1000A/s at any time during turn-on. Note that these values of rate of rise of current apply to the
total device current including that from any local snubber network.
8.0 Gate Drive
The nominal requirement for a typical gate drive is illustrated below. An open circuit voltage of at least 30V
is assumed. This gate drive must be applied when using the full di/dt capability of the device.
IGM
IG
tp1
4A/s
The magnitude of IGM should be between five and ten times IGT, which is shown on page 2. Its duration
(tp1) should be 20s or sufficient to allow the anode current to reach ten times IL, whichever is greater.
Otherwise, an increase in pulse current could be needed to supply the necessary charge to trigger. The
‘back-porch’ current IG should remain flowing for the same duration as the anode current and have a
magnitude in the order of 1.5 times IGT.
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