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FMBT3946DW Datasheet, PDF (4/14 Pages) Formosa MS – Dual NPN +PNP SMD Transistor
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Dual NPN +PNP SMD Transistor
FMBT3946DW
Formosa MS
Electrical characteristics (AT TA=25oC unless otherwise noted)
Small-signal characteristics
PARAMETER
CONDITIONS (NPN)
Symbol MIN.
Current-gain-bandwidth product(3) IC = 10mA, VCE = 20V, f = 1.0MHz
fT
Output capacitance
VCB = 5.0V, IE = 0, f = 1.0MHz
Cobo
Input capacitance
VEB = 0.5V, IC = 0, f = 1.0MHz
Cibo
Input impedance
VCE = 10V, IC = 1.0mA, f = 1.0KHz
hie
Voltage feeback radio
VCE = 10V, IC = 1.0mA, f = 1.0KHz
hre
Small-signal current gain
VCE = 10V, IC = 1.0mA, f = 1.0KHz
hfe
Output admittance
VCE = 10V, IC = 1.0mA, f = 1.0KHz
hoe
Noise figure
VCE = 5.0V, IC = 100uA, RS = 1.0K ohms, f = 1.0KHZ NF
PARAMETER
CONDITIONS (PNP)
Symbol
300
1.0
0.5
100
1.0
5.0
MIN.
Current-gain-bandwidth product(3) IC = -10mA, VCE = -20V, f = 100MHz
fT
Output capacitance
VCB = -5.0V, IE = 0, f = 1.0MHz
Cobo
Input capacitance
VEB = -0.5V, IC = 0, f = 1.0MHz
Cibo
Input impedance
VCE = -10V, IC = -1.0mA, f = 1.0KHz
hie
Voltage feeback radio
VCE = -10V, IC = -1.0mA, f = 1.0KHz
hre
Small-signal current gain
VCE = -10V, IC = -1.0mA, f = 1.0KHz
hfe
Output admittance
VCE = -10V, IC = -1.0mA, f = 1.0KHz
hoe
Noise figure
VCE = -5.0V, IC = -100uA, RS = 1.0K ohms, f = 1.0KHZ NF
3.fT is defined as the frequency at which hfe extrapolates to unity.
250
2.0
0.1
100
3.0
4.0
TYP. MAX. UNIT
MHz
4.0 pF
8.0 pF
10
kΩ
8.0
X 10-4
400
-
40
μmhos
dB
TYP. MAX. UNIT
4.5
10.0
MHz
pF
pF
12
10.0
400
60
kΩ
X 10-4
-
μmhos
dB
Switching characteristics
PARAMETER
Delay time
Rise time
CONDITIONS (NPN)
VCC = 3.0V, VBE = -0.5V
IC = 10mA, IB1 = 1.0mA
Storage time
Fall time
PARAMETER
Delay time
Rise time
VCC = 3.0V, IC =10mA
IB1 = IB2 = 1.0mA
CONDITIONS (PNP)
VCC = -3.0V, VBE = 0.5V
IC = -10mA, IB1 = -1.0mA
Storage time
Fall time
VCC = -3.0V, IC =-10mA
IB1 = IB2 = -1.0mA
4. Pulse Test: Pulse Width <=300μs, Duty cycle«=2.0%
Symbol
td
tr
ts
tf
Symbol
td
tr
ts
tf
MIN.
MIN.
TYP.
TYP.
MAX. UNIT
35
35
ns
200
50
MAX. UNIT
35
35
ns
225
75
us
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Page 4
Document ID
DS-231156
Issued Date
2010/01/10
Revised Date
2010/06/10
Revision
B
Page.
14
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