Continental Device India Limited
An ISO/TS16949 and ISO 9001 Certified Company
SOT-23 Formed SMD Package
CMBT3905
SILICON EPITAXIAL TRANSISTOR
P–N–P transistor
Marking
CMBT3905 = 2Y
PACKAGE OUTLINE DETAILS
ALL DIMENSIONS IN m
m
Pin configuration
1 = BASE
2 = EMITTER
3 = COLLECTOR
3
1
2
ABSOLUTE MAXIMUM RATINGS
Collector–base voltage (open emitter)
Collector–emitter voltage (open base)
Emitter–base voltage (open collector)
Collector current (d.c.)
Total power dissipation up to T
amb
= 60 °C
D.C. current gain
–I
C
= 10 mA; –V
CE
= 1 V
Transition frequency at f = 100 MHz
–I
C
= 10 mA; –V
CE
= 20 V
–V
CBO
–V
CEO
–V
EBO
–I
C
P
tot
h
FE
f
T
max.
max.
max.
max.
max.
40
40
5
200
250
V
V
V
mA
mW
50 to 150
min.
200
MHz
Continental Device India Limited
Data Sheet
Page 1 of 3
CMBT3905
RATINGS
(at T
A
= 25°C unless otherwise specified)
Limiting values
Collector–base voltage (open emitter)
Collector–emitter voltage (open base)
Emitter–base voltage (open collector)
Collector current (d.c.)
Total power dissipation*
up to T
amb
= 25 °C
Storage temperature
THERMAL CHARACTERISTICS
T
j
= P(R
th j–t +
R
th t–s +
R
th s–a
)
+
T
amb
Thermal resistance
from junction to ambient
–V
CB0
–V
CE0
–V
EB0
–I
C
P
tot
T
stg
max.
max.
max.
max.
40
40
5
200
V
V
V
mA
max. 250
mW
–55 to +150 °C
R
th j–a
=
200
°C/W
CHARACTERISTICS
(at T
A
= 25°C unless otherwise specified)
T
amb
= 25 °C unless otherwise specified
Collector–emitter breakdown voltage
–V
(BR)CE0
–I
C
= 1 mA; l
B
= 0
Collector–base breakdown voltage
–V
(BR)CB0
–I
C
= 10µA; I
E
= 0
Emitter–base breakdown voltage
–V
(BR)EB0
—I
E
= 10
µA;
I
C
= 0
Collector cut–off current
–I
CEX
–V
CE
= 30 V; –V
EB
= 3 V
Base current
with reverse biased emitter junction
–I
BEX
Output capacitance at f = 100 kHz
C
c
I
E
= 0; –V
CB
= 5 V
Input capacitance at f = 100 kHz
C
e
I
C
= 0; –V
BE
= 0,5 V
Saturation voltages
–I
C
= 10 mA; –I
B
= 1 mA
–I
C
= 50 mA; –I
B
= 5 mA
–I
C
= 10 mA; –I
B
= 1 mA
–I
C
= 50 mA; –I
B
= 5 mA
D.C. current gain
–I
C
= 0,1 mA; –V
CE
= 1 V
–I
C
= 1 mA; –V
CE
= 1 V
–I
C
= 10 mA; –V
CE
= 1 V
–V
CEsat
–V
CEsat
–V
BEsat
–V
BEsat
h
FE
h
FE
h
FE
min.
min.
min.
max.
max.
max.
max.
40 V
40 V
5 V
50 nA
50 nA
4.5 pF
10 pF
max. 0,25 V
max.
0,4 V
min. 0,65 V
max. 0,85 V
max. 0,95 V
min.
min.
min.
30
40
150
50
max.
Continental Device India Limited
Data Sheet
Page 2 of 3
CMBT3905
–I
C
= 50 mA; –V
CE
= 1 V
–I
C
= 100 mA; –V
CE
= 1 V
Transition frequency at f = 100 MHz
–I
C
= 10mA; –V
CE
= 20V
Noise figure at R
S
= 1 kΩ
–I
C
= 100µA; –V
CE
= 5 V
f = 10 Hz to 15,7 kHz
Small Signal Current Gain
–V
CE
= 10V; –I
C
= 1 mA; f = 1 KHz
h
FE
h
FE
f
T
min.
min.
min.
30
15
200
MHz
F
max.
4 dB
h
fe
min.
max.
50
200
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Discrete Semiconductor Device(s) best suited
for application in your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as
to confirm that the Device(s) meet functionality parameters for your application. The information furnished on the CDIL Web Site/
CD are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or incomplete
information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product;
neither does it convey any license under its patent rights nor rights of others. These products are not designed for use in life
saving/support appliances or systems. CDIL customers selling these products (either as individual Discrete Semiconductor
Devices or incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own
risk and CDIL will not be responsible for any damages resulting from such sale(s).
CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.
CDIL is a registered Trademark of
Continental Device India Limited
C-120 Naraina Industrial Area, New Delhi 110 028, India.
Telephone + 91-11-2579 6150, 5141 1112 Fax + 91-11-2579 5290, 5141 1119
email@cdil.com
www.cdilsemi.com
Continental Device India Limited
Data Sheet
Page 3 of 3
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