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BUF420 Datasheet(PDF) 3 Page - STMicroelectronics

Part # BUF420
Description  HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

BUF420 Datasheet(HTML) 3 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
Symb ol
Parameter
Test Cond ition s
Mi n.
Typ .
Max.
Un it
ts
tf
tc
St orage Time
Fall T ime
Cross Over T ime
IC =10 A
VCC =50 V
VBB =0
RBB =0.15
Ω
Vcla mp = 400 V
IB1 =1 A
L = 0.25 mH
Tj =100
oC
3
0.15
0.25
µs
µs
µs
VCEW
Maximum Collect or
Emitt er Volt age
without Snubber
IC =10 A
VCC =50 V
VBB =0
RBB =0.15
Ω
Vcla mp = 400 V
IB1 =1 A
L = 0.25 mH
Tj =125
oC
500
V
ts
tf
tc
St orage Time
Fall T ime
Cross Over T ime
IC =20 A
VCC =50 V
VBB =-5 V
RBB =0.6
Ω
Vcla mp = 400 V
IB1 =4 A
L = 0.12 mH
2.2
0. 06
0. 12
µs
µs
µs
ts
tf
tc
St orage Time
Fall T ime
Cross Over T ime
IC =20 A
VCC =50 V
VBB =-5 V
RBB =0. 6
Ω
Vcla mp = 400 V
IB1 =4 A
L = 0.12 mH
Tj =125
oC
3.5
0.12
0.3
µs
µs
µs
VCEW
Maximum Collect or
Emitt er Volt age
without Snubber
ICWoff =30 A
VCC =50 V
VBB =-5 V
RBB =0. 6
Ω
L = 0.08 mH
IB1 =6 A
Tj =125
oC
400
V
Figure 1: Turn-on Switching Test Circuit
Figure 2: Turn-off Switching Test Circuit
1) Fast electronic switch
2) Non inductive Resistor
3) Fast recovery rectifier
1) Fast electronic switch
2) Non inductive Resistor
BUF420 / BUF420M
3/7


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