Page 1
2SB1698
Transistors
Low frequency amplifier
2SB1698
zApplication
Low frequency amplifier
Driver
zFeatures
1) A collector current is large.
2) V
CE(sat) ≤ −370mV
at I
C =−1A / IB =−50mA
zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Power dissipation
Junction temperature
Range of storage temperature
∗1 Single pulse, PW=1ms
∗2 Mounted on a 40
+
40+0.7(mm)CERAMIC SUBSTRATE
V
V
V
I
P
tstg
CBO
CEO
EBO
I
C
CP
tj
C
−55 to +150
zElectrical characteristics (Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
Emitter cutoff current
Collector-emitter saturation voltage
DC current gain
Transition frequency
Collector output capacitance
∗ Pulsed
Limits
−30
−30
−6
−1.5
−3
500
150
BV
BV
BV
I
CBO
EBO
I
V
CE(sat)
h
f
2
CBO
CEO
EBO
FE
T
Unit
V
V
V
A
A
mW
W
°C
°C
−30
−30
−6
270 − 680
Cob − 13 −
zDimensions (Unit : mm)
ROHM : MPT3
JEITA : SC-62
JEDEC: SOT-89
zPackaging specifications
Type
∗1
∗2
2SB1698
−−
−−
−−
−−
−−
−−200
−
−100
−100
−370 mV
280
−
Each lead has same dimensions
Abbreviated symbol: FL
Package
Code
Basic ordering unit (pieces)
V
I
C
=−10µA
V
I
C
=−1mA
V
I
E
=−10µA
nA VCB=−30V
nA VEB=−6V
IC=−1A, IB=−50mA
− V
CE
=−2V, IC=−100mA
MHz
VCE=−2V, IE=100mA, f=100MHz
V
CB
pF
=−10V, IE=0A, f=1MHz
(1)Base
(2)Collector
(3)Emitter
Taping
T100
1000
∗
∗
Rev.A 1/2
Page 2
2SB1698
Transistors
zElectrical characteristic curves
1
VCE=−2V
Pulsed
(A)
C
COLLECTOR CURRENT : I
0.001
Ta=100°C
0.1
0.01
0 0.5 1 1.5
BASE TO EMITTER CURRENT : V
Ta=25°C
Ta=−40°C
Fig.1 Grounded emitter propagation
characteristics
1
(V)
(V)
BE (sat)
CE (sat)
V
BE(sat)
Ta=−40°C
Ta=25°C
Ta=100°C
1000
FE
100
DC CURRENT GAIN : h
10
0.001 0.01 0.1 1 10
BE
(V)
Ta=100°C
Ta=25°C
Ta=−40°C
COLLECTOR CURRENT : I
VCE=−2V
Pulsed
C
(A)
Fig.2 DC current gain
vs. collector current
1000
(MHz)
T
Ta=25°C
CE
=−2V
V
f=100MHz
10
Ta=25°C
(V)
Pulsed
CE(sat)
1
0.1
IC/IB=50/1
IC/IB=20/1
0.01
0.001
0.001 0.01 0.1 1 10
COLLECTOR SATURATION VOLTAGE : V
COLLECTOR CURRENT : I
IC/IB=10/1
Fig.3 Collector-emitter saturation voltage
vs. collector current
1000
100
Cib
C
(A)
Ta=25°C
I
C
=
0A
f=1MHz
0.1
Ta=100°C
V
CE(sat)
0.01
0.001 0.01 0.1 101
BASE SATURATION VOLTAGE : V
COLLECTOR SATURATION VOLTAGE : V
COLLECTOR CURRENT : I
Ta=25°C
Ta=−40°C
Fig.4 Collector-emitter saturation voltage
base-emitter saturation voltage
vs. collector current
1000
100
10
SWITCHING TIME : (ns)
1
0.01 0.1 1 10
COLLECTOR CURRENT : I
Fig.7 Switching time
tstg
Ta=25°C
VCE=−5V
I
C/IB
tf
tdon
tr
C
IC/IB=20/1
Pulsed
C
(A)
=20/1
(A)
100
TRANSITION FREQUENCY : f
10
0.01 0.1 1 10
EMITTER CURRENT : I
Fig.5 Gain bandwidth product
vs. emitter current
10
1
EMITTER INPUT CAPACITANCE : Cib (pF)
EMITTER TO BASE VOLTAGE : V
E
(A)
COLLECTOR OUTPUT CAPACITANCE : Cob (pF)
COLLECTOR TO BASE VOLTAGE : V
1 10 1000.1
Cob
EB
(
V)
CB
(
V)
Fig.6 Collector output capacitance
vs. collector-base voltage
Emitter input capacitance
vs. emitter-base voltage
Rev.A 2/2
Page 3
Appendix
Notes
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.
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 which 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.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact your nearest sales office.
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Appendix1-Rev2.0
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