NPN small signal transistor
BCX70J, K
Features
1) Ideal for switching and AF amplifier applications.
2) Complements the BCX71.
Dimensions
(Unit : mm)
BCX70J,K
2.9
0.4
0.95
0.45
Package
Type
BCX70J, K
Code
Basic ordering unit (pieces)
Taping
T116
3000
(1)Emitter
(2)Base
(3)Collector
(2)
(1)
0.95 0.95
1.9
1.3
2.4
Packaging
specifications
(3)
0.15
Each lead has same dimensions
Abbreviated symbol : GAJ (BCX70J)
GAK (BCX70K)
Absolute
maximum ratings
(Ta=25C)
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
C
Tj
Tstg
Limits
45
45
5
0.2
0.2
0.35
150
−55
to 150
Unit
V
V
V
A
W
W
∗
°C
°C
∗
Mounted on a 7
×
5
×
0.6 mm CERAMIC SUBSTRATE
Electrical
characteristics
(Ta=25C)
Parameter
Symbol
Min.
45
5
−
−
−
−
−
−
0.55
250
90
125
−
−
−
Typ.
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Max.
−
−
0.1
0.1
0.35
0.55
0.85
1.05
0.75
630
−
−
4.5
6
20
Unit
V
V
I
C
=
2mA
I
C
=
10μA
V
CE
=
45V
V
EB
=
4V
I
C
/I
B
=
10mA/ 0.25mA
I
C
/I
B
=
50mA/ 1.25mA
I
C
/I
B
=
10mA/ 0.25mA
I
C
/I
B
=
50mA/ 1.25mA
V
CE
=
5V, I
C
=
2mA
V
CE
=
5V, I
C
=
2mA
V
CE
=
5V, I
C
=
50mA
V
CE
=
5V, I
E
=
10mA, f=100MHz
V
CB
=
10V, f=1MHz, I
E
=0A
V
CE
=
5V, I
C
=
200μA, f=1kHz,Rg=2kΩ
V
CB
=
45V, Ta=150
°C
Conditions
Collector-emitter breakdown voltage BV
CEO
Emitter-base breakdown voltage
Collector-emitter cutoff current
Emitter-base cutoff current
Collector-emitter saturation voltage
BV
EBO
I
CES
I
EBO
V
CE(sat)1
V
CE(sat)2
Base-emitter saturation voltage
Base-emitter voltage
DC current transfer ratio
Transition frequency
Collector output capacitance
Noise figure
Collector-base cutoff current
V
BE(sat)1
V
BE(sat)2
V
BE(on)
h
FE1
h
FE2
f
T
Cob
NF
I
CBO
μ
A
μ
A
V
V
V
V
V
−
MHz
pF
dB
μ
A
This parts are classified into the categories below and given h
FE
item.
Part. No
h
FE1
h
FE2
BCX70J
BCX70K
250 to 460 380 to 630
90 or more 125 or more
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○
2011 ROHM Co., Ltd. All rights reserved.
1/2
0.2Min.
2011.11 - Rev.B
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