UMF28N
Transistors
Absolute maximum ratings
(Ta=25°C)
Tr1
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
−60
−50
−6
−150
150 (TOTAL)
150
−55
to +150
Unit
V
V
V
mA
mW
°C
°C
∗
∗
120mW per element must not be exceeded.
DTr2
Parameter
Supply voltage
Input voltage
Symbol
Limits
V
CC
50
V
IN
−10
to
+40
I
O
100
Output current
100
I
C(Max.)
P
C
150(TOTAL)
Power dissipation
Tj
150
Junction temperature
Tstg
−55
to
+150
Range of storage temperature
∗
120mW per element must not be exceeded.
Each terminal mounted on a recommended land.
Unit
V
V
mA
mW
°C
°C
∗
Electrical characteristics
(Ta=25°C)
Tr1
Parameter
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
Emitter cutoff current
Collector-emitter saturation voltage
DC current transfer ratio
Transition frequency
Output capacitance
Symbol
BV
CBO
BV
CEO
BV
EBO
I
CBO
I
EBO
V
CE(sat)
h
FE
f
T
Cob
Min.
−60
−50
−6
−
−
−
180
−
−
Typ.
−
−
−
−
−
−
−
140
4
Max.
−
−
−
−0.1
−0.1
−0.5
390
−
5
Unit
V
V
V
µA
µA
V
−
MHz
pF
I
C
=
−50µA
I
C
=
−1mA
I
E
=
−50µA
V
CB
=
−60V
V
EB
=
−6V
Conditions
I
C
/I
B
=
−50mA/−5mA
V
CE
=
−6V,
I
C
=
−1mA
V
CE
=
−12V,
I
E
= 2mA, f = 100MHz
V
CB
=
−12V,
I
E
= 0A, f = 1MHz
DTr2
Parameter
Input voltage
Output voltage
Input current
Output current
DC current gain
Input resistance
Resistance ratio
Transition frequency
∗
Transition frequency of the device.
Symbol
V
I(off)
V
I(on)
V
O(on)
I
I
I
O(off)
G
I
R
1
R
2
/R
1
f
T
Min.
−
2.5
−
−
−
68
15.4
1.7
−
Typ.
−
−
0.1
−
−
−
22
2.1
250
Max.
0.4
−
0.3
0.36
0.5
−
28.6
2.6
−
Unit
V
V
mA
µA
−
kΩ
−
MHz
Conditions
V
CC
=5V,
I
O
=100µA
V
O
=0.3V,
I
O
=2mA
I
O
=10mA,
I
I
=0.5mA
V
I
=5V
V
CC
=50V,
V
I
=0V
V
O
=5V,
I
O
=5mA
−
−
V
CE
=10V,
I
E
= −5mA,
f=100MHz
∗
2/4
UMF28N
Transistors
Electrical characteristics curves
Tr1
-50
COLLECTOR CURRENT : Ic
(mA)
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
Ta = 100°C
25°C
-20
−
40°C
-10
-5
-2
-1
-0.5
-0.2
-0.1
V
CE
=
−6V
-10
-35.0
Ta = 25°C
-31.5
-28.0
-24.5
-100
Ta = 25°C
-500
-450
-400
-350
-300
-8
-80
-6
-21.0
-17.5
-60
-250
-200
-4
-14.0
-10.5
-40
-150
-100
-2
-7.0
-3.5µA
I
B
= 0
-20
-50µA
I
B
= 0
0
-1
-2
-3
-4
-5
-0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6
0
-0.4
-0.8
-1.2
-1.6
-2.0
BASE TO EMITTER VOLTAGE : V
BE
(V)
COLLECTOR TO EMITTER VOLTAGE : V
CE
(V)
COLLECTOR TO EMITTER VOLTAGE : V
CE
(V)
Fig.1 Grounded emitter propagation
characteristics
Fig.2 Grounded emitter output
characteristics (
Ι
)
Fig.3 Grounded emitter output
characteristics (
ΙΙ
)
500
Ta = 25°C
V
CE
= -5V
-3V
-1V
DC CURRENT GAIN : h
FE
500
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
-1
Ta = 100°C
25°C
200
Ta = 25°C
DC CURRENT GAIN : h
FE
-0.5
200
-40°C
-0.2
100
100
I
C
/I
B
= 50
-0.1
20
10
50
50
-0.05
V
CE
= -6V
-0.2
-0.5
-1
-2
-5
-10 -20
-50 -100
-0.2
-0.5
-1
-2
-5
-10 -20
-50 -100
-0.2
-0.5
-1
-2
-5
-10
-20
-50 -100
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
Fig.4 DC current gain vs. collector
current (
Ι
)
Fig.5 DC current gain vs. collector
current (
ΙΙ
)
Fig.6 Collector-emitter saturation
voltage vs. collector current (
Ι
)
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
-1
1000
COLLECTOR OUTPUT CAPACITANCE : Cob (
pF)
EMITTER INPUT CAPACITANCE
: Cib (
pF)
TRANSITION FREQUENCY : f
T
(MHz)
l
C
/l
B
= 10
Ta = 25
°C
V
CE
= -12V
20
Cib
10
-0.5
500
Ta = 25
°C
f
=
1MHz
I
E
= 0A
I
C
= 0A
Co
b
-0.2
200
5
-0.1
Ta = 100°C
25°C
-40°C
100
2
-0.05
50
0.5
1
2
5
10
-0.2
-0.5
-1
-2
-5
-10
-20
-50 -100
20
50
100
-0.5
-1
-2
-5
-10
-20
COLLECTOR CURRENT : I
C
(mA)
EMITTER CURRENT : I
E
(mA)
COLLECTOR TO BASE VOLTAGE : V
CB
(V)
EMITTER TO BASE VOLTAGE
: V
EB
(V)
Fig.7 Collector-emitter saturation
voltage vs. collector current (
ΙΙ
)
Fig.8 Gain bandwidth product vs.
emitter current
Fig.9 Collector output capacitance vs.
collector-base voltage
Emitter input capacitance vs.
emitter-base voltage
3/4
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 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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