User guide

MMDT3946
0.01
0.1
1
0.1 1 10
100
1,000
V,
C
O
LLE
C
T
O
R
-EMI
T
T
E
R
SATURATION VOLTAGE
CE(SAT)
(V)
I , COLLECTOR CURRENT (mA)
Fig. 3 Typical Collector-Emitter Saturation Voltage
vs. Collector Current (NPN-3904)
C
0.1
1
10
0.1 1 10 100 1,000
V , BASE-EMI
T
T
E
R
SA
T
U
R
A
T
I
O
N V
O
L
T
A
G
E
BE(SAT)
(V)
I , COLLECTOR CURRENT (mA)
Fig. 4 Typical Base-Emitter Saturation Voltage
vs. Collector Current (NPN-3904)
C
1
10
1,000
100
0.1
1
10
1,000
100
h, D
C
C
U
R
R
EN
T
G
AIN
FE
I , COLLECTOR CURRENT (mA)
Fig. 6 Typical DC Current Gain vs.
Collector Current (PNP-3906)
C
0
5
1
5
10
0.1
1
10
100
C
A
P
A
C
I
T
A
N
C
E (p
F
)
V , REVERSE VOLTAGE (V)
Fig. 5 Typical Capacitance Characteristics (NPN-3904)
R
0.01
0.1
10
1
1
10
100
1,000
V,
C
O
LLE
C
T
O
R
-EMI
T
T
E
R
SATURATION VOLTAGE (V)
CE(SAT)
I , COLLECTOR CURRENT (mA)
Fig. 7 Typical Collector-Emitter Saturation Voltage
vs. Collector Current (PNP-3906)
C
0.5
0.6
0.7
0.8
0.9
1.0
110
V , BASE-EMI
100
T
T
E
R
SATURATION VOLTAGE
BE(SAT)
(V)
I , COLLECTOR CURRENT (mA)
Fig. 8 Typical Base-Emitter Saturation Voltage
vs. Collector Current (PNP-3906)
C
I
I
C
B
= 10
MMDT3946
Document number: DS30123 Rev. 11 - 2
4 of 6
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October 2008
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