BUF644 Vishay, BUF644 Datasheet - Page 2

• Manufacturer Part Number: BUF644
• Description: Silicon Npn High Voltage Switching Transistor
• Manufacturer: Vishay

Electrical Characteristics
T
BUF644
Vishay Telefunken
Collector cut-off current
Collector-emitter
breakdown voltage (figure 1)
Emitter-base
breakdown voltage
Collector-emitter
saturation voltage
Base-emitter
saturation voltage
DC forward current
transfer ratio
Collector-emitter
working voltage
Dynamic saturation voltage
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2 (9)
case
y
= 25 C, unless otherwise specified
Parameter
g
V
V
I
I
I
I
I
I
I
V
V
V
V
V
I
I
I
C
measure
E
C
C
C
C
B1
C
C
CE
CE
CE
CE
CE
CE
S
= 1 mA
= 500 mA; L = 125 mH;
= 1.3 A; I
= 4 A; I
= 1.3 A; I
= 4 A; I
= 4 A; I
= 4 A; I
= 50 V; L = 1 mH; I
= 2.7 A; –I
= 700 V
= 700 V; T
= 2 V; I
= 2 V; I
= 2 V; I
= 5 V; I
= 100 mA
B
B
B
B
Test Conditions
= 1.3 A
= 1.3 A
= 0.8 A; t = 1
= 0.8 A; t = 3
B
B
C
C
C
C
= 0.3 A
= 0.3 A
= 10 mA
= 1.3 A
= 4 A
= 8 A
B2
case
= 0.8 A; –V
= 150 ° C
C
= 8 A;
m
m
s
s
BB
= 5 V
V
V
V
V
Symbol
V
V
CEsatdyn
CEsatdyn
(BR)CEO
(BR)EBO
V
V
V
I
I
h
h
h
h
CEsat
CEsat
BEsat
BEsat
CES
CES
CEW
FE
FE
FE
FE
Min
400
500
15
12
9
6
4
Document Number 86512
Typ
0.1
0.2
0.9
7.5
1.5
18
18
1
Rev. 2, 20–Jan–99
Max
0.5
0.2
0.4
1.2
50
15
1
4
Unit
mA
m
V
V
V
V
V
V
V
V
V
A