Transistors
NPN small signal transistor
BCX70J, K
zFeatures zDimensions (Unit : mm)
1) Ideal for switching and AF amplifi er applications.
2) Complements the BCX71.
zPackaging specifications
Type
BCX71J, K
Package
Code
Basic ordering unit (pieces)
Taping
T116
3000
zAbsolute maximum ratings (Ta=25°C)
Parameter
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
∗
Symbol Limits Unit
CBO
V
V
CEO
V
EBO
C
I
P
C
Tj
Tstg
45 V
45
5
0.2
0.2
0.35
150
−55 to 150
BCX70J,K
(1)Emitter
(2)Base
(3)Collector
V
V
A
W
W
°C
°C
2.9
0.4
(3)
(2)
(1)
0.95
0.95
1.9
Abbreviated symbol : GAJ (BCX70J)
∗
BCX70J, K
0.95
0.45
0.2Min.
2.4
1.3
0.15
Each lead has same dimensions
GAK (BCX70K)
1/2
Transistors
T
.
zElectrical characteristics (T a=25°C)
Typ. Max. Unit Conditions
Parameter Symbol
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
BV
BV
CE(sat)1
V
V
CE(sat)2
V
BE(sat)1
V
BE(sat)2
V
I
I
DC current transfer ratio
Transition frequency
Collector output capacitance
Cob −−4.5 V
Noise figure
Collector-base cutoff current
ICBO
his parts are classified into the categories below and given hFE item
Part. No BCX70J
FE1
FE2
250 to 460
90 or more
h
h
BCX70K
380 to 630
125 or more
Min.
CEO
45
EBO
5
CES
EBO
−
−
−
−
−
−
BE(on)
0.55
h
FE1
250
h
FE2
90 −−
f
T
125
NF −−6V
−
BCX70J, K
C
−
−
−
−
0.1
0.1
20
µA
µA
MHz
−
µA
−
−
0.35
−
0.55
−
0.85
−
1.05
−
0.75
−
−
630
−
−
= 2mA
VI
C
= 10µA
V
I
V
CE
EB
V
I
C/IB
C/IB
I
V
I
C/IB
I
C/IB
V
CE
CE
V
−
CE
V
V
CE
CB
CE
V
CB
= 45V
= 4V
= 10mA/ 0.25mAV
= 50mA/ 1.25mA
= 10mA/ 0.25mAV
= 50mA/ 1.25mAV
= 5V, IC= 2mAV
= 5V, IC= 2mA
= 5V, IC= 50mA
= 5V, IE= 10mA, f=100MHz
= 10V, f=1MHz, IE=0ApF
= 5V, IC= 200µA, f=1kHz,Rg=2kΩdB
= 45V, Ta=150°C
2/2
Appendix
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
Notes
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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