Datasheet
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2011 ROHM Co., Ltd. All rights reserved.
2011.09 - Rev.B
NPN small signal transistor
BCX70J, K
Features Dimensions (Unit : mm)
1) Ideal for switching and AF amplifier applications.
2) Complements the BCX71.
Packaging specifications
Package
Code
Taping
Basic ordering unit (pieces)
BCX70J, K
T116
3000
Type
Absolute maximum ratings (Ta=25C)
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature
∗
Mounted on a 7
×
5
×
0.6 mm CERAMIC SUBSTRATE
Parameter
V
CBO
V
CEO
V
EBO
P
C
Tj
Tstg
45 V
V
V
A
°C
°C
45
5
0.2
I
C
∗
0.2
0.35
W
W
150
−55 to 150
Symbol Limits Unit
Electrical characteristics (Ta=25C)
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector-emitter cutoff current
Emitter-base cutoff current
Collector-emitter saturation voltage
Base-emitter saturation voltage
Base-emitter voltage
DC current transfer ratio
Collector-base cutoff current
Parameter Symbol
BV
CEO
BVEBO
ICES
IEBO
VCE(sat)2
hFE1
hFE2
fT
I
CBO
Min.
45
5
−
−
−
250
125
−
−
−
−
−
−
−
−
−
−
−
0.1
0.1
0.55
630
90 −−
−
20
VI
C= 2mA
I
C= 10μA
V
CE= 45V
V
EB= 4V
I
C/IB= 50mA/ 1.25mA
V
CE= 5V, IC= 2mA
V
CE= 5V, IC= 50mA
V
CE= 5V, IE= 10mA, f=100MHz
V
CB= 45V, Ta=150°C
V
μA
μA
V
VCE(sat)1 −
−
0.35
IC/IB= 10mA/ 0.25mAV
V
BE(sat)2 −
−
1.05
I
C/IB= 50mA/ 1.25mAV
V
BE(sat)1 −
−
0.85
I
C/IB= 10mA/ 0.25mAV
−
MHz
μA
Typ. Max. Unit Conditions
VBE(on) 0.55
−
0.75
V
CE= 5V, IC= 2mAV
Transition frequency
Cob −−4.5 V
CB= 10V, f=1MHz, I
E
=0ApF
Collector output capacitance
NF −−6V
CE= 5V, IC= 200μA, f=1kHz,Rg=2kΩdB
Noise figure
h
FE1
h
FE2
Part. No BCX70J
250 to 460
90 or more
BCX70K
380 to 630
125 or more
This parts are classified into the categories below and given h
FE
item.
Each lead has same dimensions
(1)Emitter
(2)Base
(3)Collector
BCX70J,K
0.45
0.95
0.15
0.2Min.
2.4
1.3
2.9
0.95
(
1
)
(
3
)
0.95
(
2
)
1.9
0.4
Abbreviated symbol : GAJ (BCX70J)
GAK (BCX70K)