Electrical characteristics – Diodes MMBT3904T User Manual
Page 2
Electrical Characteristics
@T
A
= 25°C unless otherwise specified
DS30270 Rev. 8 - 2
2 of 4
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MMBT3904T
© Diodes Incorporated
Characteristic
Symbol
Min
Max
Unit
Test Condition
OFF CHARACTERISTICS (Note 5)
Collector-Base Breakdown Voltage
V
(BR)CBO
60
⎯
V
I
C
= 10
μA, I
E
= 0
Collector-Emitter Breakdown Voltage
V
(BR)CEO
40
⎯
V
I
C
= 1.0mA, I
B
= 0
Emitter-Base Breakdown Voltage
V
(BR)EBO
6.0
⎯
V
I
E
= 10
μA, I
C
= 0
Collector Cutoff Current
I
CEX
⎯
50
nA
V
CE
= 30V, V
EB(OFF)
= 3.0V
Base Cutoff Current
I
BL
⎯
50
nA
V
CE
= 30V, V
EB(OFF)
= 3.0V
ON CHARACTERISTICS (Note 5)
DC Current Gain
h
FE
40
70
100
60
30
⎯
⎯
300
⎯
⎯
⎯
I
C
= 100µA, V
CE
= 1.0V
I
C
= 1.0mA, V
CE
= 1.0V
I
C
= 10mA, V
CE
= 1.0V
I
C
= 50mA, V
CE
= 1.0V
I
C
= 100mA, V
CE
= 1.0V
Collector-Emitter Saturation Voltage
V
CE(SAT)
⎯
0.20
0.30
V
I
C
= 10mA, I
B
= 1.0mA
I
C
= 50mA, I
B
= 5.0mA
Base-Emitter Saturation Voltage
V
BE(SAT)
0.65
⎯
0.85
0.95
V
I
C
= 10mA, I
B
= 1.0mA
I
C
= 50mA, I
B
= 5.0mA
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
C
obo
⎯
4.0
pF
V
CB
= 5.0V, f = 1.0MHz, I
E
= 0
Input Capacitance
C
ibo
⎯
8.0
pF
V
EB
= 0.5V, f = 1.0MHz, I
C
= 0
Input Impedance
h
ie
1.0
10
k
Ω
Voltage Feedback Ratio
h
re
0.5
8.0
x 10
-4
Small Signal Current Gain
h
fe
100
400
⎯
Output Admittance
h
oe
1.0
40
μS
V
CE
= 10V, I
C
= 1.0mA,
f = 1.0kHz
Current Gain-Bandwidth Product
f
T
300
⎯
MHz
V
CE
= 20V, I
C
= 10mA,
f = 100MHz
Noise Figure
NF
⎯
5.0 dB
V
CE
= 5.0Vdc, I
C
= 100
μAdc,
R
S
= 1.0K
Ω, f = 1.0MHz
SWITCHING CHARACTERISTICS
Delay Time
t
d
⎯
35
ns
Rise Time
t
r
⎯
35
ns
V
CC
= 3.0V, I
C
= 10mA,
V
BE(off)
= - 0.5V, I
B1
= 1.0mA
Storage Time
t
s
⎯
200
ns
V
CC
= 3.0V, I
C
= 10mA
Fall Time
t
f
⎯
50
ns
I
B1
= I
B2
= 1.0mA
Notes:
5. Short duration pulse test used to minimize self-heating effect.
0
100
150
50
200
250
0
100
200
P
, P
O
WE
R
DI
SSI
P
A
T
IO
N (
m
W
)
d
T , AMBIENT TEMPERATURE (°C)
Fig. 1, Power Derating Curve
A
0
5
15
10
0.1
1
10
100
C
, I
N
P
U
T
C
A
P
A
C
IT
A
N
C
E (
p
F
)
C
, OUT
P
U
T
CAP
A
C
IT
A
NCE
(p
F
)
IB
O
OB
O
V , COLLECTOR-BASE VOLTAGE (V)
Fig. 2, Input and Output Capacitance vs.
Collector-Base Voltage
CB