1
Transistor
2SB621, 2SB621A
Silicon PNP epitaxial planer type
For low-frequency output amplification
Complementary to 2SD592 and 2SD592A
n
Features
l Low collector to emitter saturation voltage V
CE(sat)
.
l High transition frequency f
T
.
n
Absolute Maximum Ratings (Ta=25˚C)
Unit: mm
Parameter
Collector to
base voltage
Collector to
emitter voltage
Emitter to base voltage
Peak collector current
Collector current
Collector power dissipation
Junction temperature
Storage temperature
1:Emitter
2:Collector
3:Base
JEDEC:TO–92
EIAJ:SC–43A
5.0– 0.2 4.0– 0.2
5.1
–
0.2
13.5
–
0.5
0.45
+0.2
–0.10.45
+0.2
–0.1
1.27 1.27
2.3
–
0.2
2.54– 0.15
213
Symbol
V
CBO
V
CEO
V
EBO
I
CP
I
C
P
C
T
j
T
stg
Ratings
–30
–60
–25
–50
–5
–1.5
–1
750
150
–55 ~ +150
Unit
V
V
V
A
A
mW
˚C
˚C
2SB621
2SB621A
2SB621
2SB621A
n
Electrical Characteristics (Ta=25˚C)
Parameter
Collector cutoff current
Collector to base
voltage
Collector to emitter
voltage
Emitter to base voltage
Forward current transfer ratio
Collector to emitter saturation voltage
Base to emitter saturation voltage
Transition frequency
Collector output capacitance
Symbol
I
CBO
V
CBO
V
CEO
V
EBO
h
FE1
*
h
FE2
V
CE(sat)
V
BE(sat)
f
T
C
ob
Conditions
V
CB
= –20V, I
E
= 0
I
C
= –10m A, I
E
= 0
I
C
= –2mA, I
B
= 0
I
E
= –10m A, I
C
= 0
V
CE
= –10V, I
C
= –500mA
V
CE
= –5V, I
C
= –1A
I
C
= –500mA, I
B
= –50mA
IC = –500mA, I
B
= –50mA
V
CB
= –10V, I
E
= 50mA, f = 200MHz
V
CB
= –10V, I
E
= 0, f = 1MHz
min
–30
–60
–25
–50
–5
85
50
typ
– 0.2
– 0.85
200
20
max
– 0.1
340
–0.4
–1.2
30
Unit
m A
V
V
V
V
V
MHz
pF
2SB621
2SB621A
2SB621
2SB621A
*
h
FE1
Rank classification
Rank Q R S
h
FE1
85 ~ 170 120 ~ 240 170 ~ 340