LESHAN RADIO COMPANY, LTD.
O111/6
1
3
2
MMBT3904LT1
2
EMITTER
3
COLLECTOR
1
BASE
CASE 31808, STYLE 6
SOT23 (TO236AB)
General Purpose Transistor
NPN Silicon
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
CollectorEmitter Voltage
V
CEO
40
Vdc
CollectorBase Voltage
V
CBO
60
Vdc
EmitterBase Voltage
V
EBO
6.0
Vdc
Collector Current -- Continuous
I
C
200
mAdc
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation FR 5 Board, (1)
P
D
225
mW
T
A
= 25C
Derate above 25C
1.8
mW/C
Thermal Resistance, Junction to Ambient
R
JA
556
C/W
Total Device Dissipation
P
D
300
mW
Alumina Substrate, (2) T
A
= 25C
Derate above 25C
2.4
mW/C
Thermal Resistance, Junction to Ambient
R
JA
417
C/W
Junction and Storage Temperature
T
J
, T
stg
55 to +150
C
DEVICE MARKING
MMBT3904LT1 = 1AM
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise noted.)
Characteristic
Symbol
Min
Max
Unit
OFF CHARACTERISTICS
CollectorEmitter Breakdown Voltage(3)
V
(BR)CEO
40
--
Vdc
(I
C
= 1.0 mAdc, I
B
= 0)
CollectorBase Breakdown Voltage
V
(BR)CBO
60
--
Vdc
(I
C
= 10
Adc, I
E
= 0)
EmitterBase Breakdown Voltage
V
(BR)EBO
6.0
--
Vdc
(I
E
= 10
Adc, I
C
= 0)
Base Cutoff Current
I
BL
--
50
nAdc
( V
CE
= 30 Vdc, V
EB
= 3.0 Vdc, )
Collector Cutoff Current
I
CEX
--
50
nAdc
( V
CE
= 30Vdc, I
EB
= 3.0Vdc )
1. FR5 = 1.0 x 0.75 x 0.062 in.
2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.
3. Pulse Test: Pulse Width <300
s, Duty Cycle <2.0%.
LESHAN RADIO COMPANY, LTD.
O112/6
MMBT3904LT1
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Max
Unit
ON CHARACTERISTICS (3)
DC Current Gain(1)
h
FE
(I
C
=0.1 mAdc, V
CE
=1.0 Vdc)
40
(I
C
= 1.0 mAdc, V
CE
= 1.0 Vdc)
70
(I
C
= 10 mAdc, V
CE
= 1.0 Vdc)
100
300
(I
C
= 50mAdc, V
CE
= 1.0Vdc)
60
(I
C
= 100mAdc, V
CE
=1.0 Vdc)
30
CollectorEmitter Saturation Voltage
V
CE(sat)
Vdc
(I
C
= 10 mAdc, I
B
= 1.0 mAdc)(3)
0.2
(I
C
= 50 mAdc, I
B
= 5.0mAdc)
0.3
BaseEmitter Saturation Voltage(3)
V
BE(sat)
Vdc
(I
C
= 10 mAdc, I
B
= 1.0mAdc)
0.65
0.85
(I
C
= 50mAdc, I
B
= 5.0mAdc )
0.95
SMALLSIGNAL CHARACTERISTICS
CurrentGain -- Bandwidth Product
f
T
300
MHz
(I
C
= 10mAdc, V
CE
= 20Vdc, f = 100MHz)
Output Capacitance
(V
CB
= 5.0Vdc, I
E
= 0, f = 1.0 MHz)
C
obo
4.0
pF
Input Capacitance
C
ibo
8.0
pF
(V
EB
= 0.5Vdc, I
C
= 0, f = 1.0 MHz)
Input Impedancen
h
ie
1.0
10
pF
(V
CE
= 10Vdc, I
C
= 1.0mAdc, f = 1.0 kHz)
Voltage Feedback Ratio
h
re
0.5
8.0
X10
4
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz)
SmallSignal Current Gain
h
fe
100
400
--
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz)
Output Admittance
h
oe
1.0
40
mhos
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz)
Noise Figure
NF
--
5.0
dB
(V
CE
= 5.0 Vdc, I
C
= 100
Adc, R
S
= 1.0 k
, f = 1.0 kHz)
SWITCHING CHARACTERISTICS
Delay Time
(V
CC
= 3.0 Vdc,V
BE
= 0.5Vdc
t
d
--
35
ns
Rise Time
I
C
= 10 mAdc, I
B1
= 1.0mAdc)
t
r
--
35
Storage Time
(V
CC
= 3.0Vdc,
t
s
--
200
Fall Time
I
C
= 10 mAdc,I
B1
= I
B2
= 10 mAdc)
t
f
--
50
ns
3. Pulse Test: Pulse Width <300
s, Duty Cycle <2.0%.
LESHAN RADIO COMPANY, LTD.
O113/6
MMBT3904LT1
Figure 1. Delay and Rise Time
Equivalent Test Circuit
+3 V
275
10 k
1N916
C
S
< 4 pF*
+3 V
275
10 k
C
S
< 4 pF*
< 1 ns
0.5 V
+10.9 V
300 ns
DUTY CYCLE = 2%
< 1 ns
9.1
+10.9 V
DUTY CYCLE = 2%
t
1
0
10 < t
1
< 500
s
* Total shunt capacitance of test jig and connectors
Figure 2. Storage and Fall Time
Equivalent Test Circuit
TYPICAL TRANSIENT CHARACTERISTICS
REVERSE BIAS VOLTAGE (VOLTS)
Figure 3. Capacitance
I
C
, COLLECTOR CURRENT (mA)
Figure 4. Charge Data
Q, CHARGE (pC)
CAP
ACIT
ANCE (pF)
V
CC
= 40 V
I
C
/I
B
= 10
Q
T
Q
A
C
ibo
C
obo
T
J
= 25C
T
J
= 125C
0.1
0.2 0.3
0.5 0.7 1.0
2.0 3.0
5.0 7.0 10
20 30 40
1.0
2.0 3.0
5.0 7.0 10
20
30
50 70 100
200
10
7.0
5.0
3.0
2.0
1.0
5000
3000
2000
1000
700
500
300
200
100
70
50
LESHAN RADIO COMPANY, LTD.
O114/6
MMBT3904LT1
I
C
, COLLECTOR CURRENT (mA)
Figure 5. TurnOn Time
I
C
, COLLECTOR CURRENT (mA)
Figure 6. Rise Time
I
C
, COLLECTOR CURRENT (mA)
Figure 7. Storage Time
I
C
, COLLECTOR CURRENT (mA)
Figure 8. Fall Time
TYPICAL AUDIO SMALLSIGNAL CHARACTERISTICS
NOISE FIGURE VARIATIONS
(V
CE
= 5.0 Vdc, T
A
= 25C, Bandwidth = 1.0 Hz)
t
r
, RISE TIME (ns)
t
f
,
, F
ALL TIME (ns)
V
CC
= 40 V
I
C
/I
B
= 10
f, FREQUENCY (kHz)
Figure 9.
NF, NOISE FIGURE (dB)
f = 1.0 kHz
V
CC
= 40 V
I
B1
= I
B2
I
C
/I
B
= 20
I
C
/I
B
= 10
I
C
/I
B
= 10
t
r
@ V
CC
= 3.0 V
t
d
@ V
OB
= 0 V
40 V
15 V
2.0 V
I
C
/I
B
=10
I
C
/I
B
=20
I
C
/I
B
=10
I
C
/I
B
=20
t '
s
= t
s
1 /8 t
f
I
B1
= I
B2
I
C
= 1.0 mA
I
C
= 0.5 mA
I
C
= 50
A
I
C
= 100
A
SOURCE RESISTANCE=200
I
C
= 1.0 mA
SOURCE RESISTANCE =200
I
C
= 0.5 mA
SOURCE RESISTANCE=500
I
C
= 100
A
SOURCE RESISTANCE =1.0k
I
C
= 50
A
R
S
, SOURCE RESISTANCE (k
)
Figure 10.
1.0
2.0 3.0
5.0 7.0 10
20
30
50
70 100
200
500
300
200
100
70
50
30
20
10
7
5
TIME (ns)
t '
s
, ST
ORAGE TIME (ns)
1.0
2.0 3.0
5.0 7.0 10
20
30
50
70 100
200
500
300
200
100
70
50
30
20
10
7
5
1.0
2.0 3.0
5.0 7.0 10
20
30
50
70 100
200
500
300
200
100
70
50
30
20
10
7
5
1.0
2.0 3.0
5.0 7.0 10
20
30
50
70 100
200
500
300
200
100
70
50
30
20
10
7
5
0.1
0.2
0.4
1.0
2.0
4.0
10
20
40
100
12
10
8
6
4
2
0
0.1
0.2
0.4
1.0
2.0
4.0
10
20
40
100
14
12
10
8
6
4
2
0
NF, NOISE FIGURE (dB)
LESHAN RADIO COMPANY, LTD.
O115/6
h PARAMETERS
(V
CE
= 10 Vdc, f = 1.0 kHz, T
A
= 25C)
V
CE
= 1.0 V
MMBT3904LT1
TYPICAL STATIC CHARACTERISTICS
I
C
, COLLECTOR CURRENT (mA)
Figure 11. Current Gain
I
C
, COLLECTOR CURRENT (mA)
Figure 12. Output Admittance
I
C
, COLLECTOR CURRENT (mA)
Figure 13. Input Impedance
I
C
, COLLECTOR CURRENT (mA)
Figure 14. Voltage Feedback Ratio
I
C
, COLLECTOR CURRENT (mA)
Figure 15. DC Current Gain
h
fe
, CURRENT
h
oe
, OUTPUT ADMITT
ANCE ( mhos)
h
re
, VOL
T
AGE FEEDBACK RA
TIO (X 10
4
)
h
ie
, INPUT IMPEDANCE (k
)
h
FE
, DC CURRENT GAIN (NORMALIZED)
T
J
= +125C
+25C
55C
0.1
0.2
0.3
0.5
1.0
2.0
3.0
5.0
10
300
200
100
70
50
30
0.1
0.2
0.3
0.5
1.0
2.0
3.0
5.0
10
100
50
20
10
5
2
1
0.1
0.2
0.3
0.5
1.0
2.0
3.0
5.0
10
20
10
5.0
2.0
1.0
0.5
0.2
0.1
0.2
0.3
0.5
1.0
2.0
3.0
5.0
10
10
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.1
0.2
0.3
0.5
0.7
1.0
2.0
3.0
5.0
7.0
10
20
30
50
70
100
200
2.0
1.0
0.7
0.5
0.3
0.2
0.1
LESHAN RADIO COMPANY, LTD.
O116/6
MMBT3904LT1
I
B
, BASE CURRENT (mA)
Figure 16. Collector Saturation Region
I
C
, COLLECTOR CURRENT (mA)
Figure 17. "ON" Voltages
I
C
, COLLECTOR CURRENT (mA)
Figure 18. Temperature Coefficients
V
CE
, COLLECTOR EMITTER VOL
T
AGE (VOL
TS)
V
,
VOL
T
AGE (VOL
TS)
COEFFICIENT(mV/C)
1.0
2.0
3.0
5.0
10
20
50
100
200
1.2
1.0
0.8
0.6
0.4
0.2
0
0.01
0.02
0.03
0.05
0.07
0.1
0.2
0.3
0.5
0.7
1.0
2.0
3.0
5.0
7.0
10
1.0
0.8
0.6
0.4
0.2
0
I
C
= 1.0 mA
T
J
= 25C
10 mA
30 mA
100 mA
T
J
= 25C
V
BE(sat)
@ I
C
/I
B
=10
V
CE(sat)
@ I
C
/I
B
=10
V
BE
@ V
CE
=1.0 V
+25C TO +125C
55C TO +25C
+25C TO +125C
55C TO +25C
VC
FOR V
CE(sat)
VB
FOR V
BE(sat)
0
20
40
60
80
100
120
140
160
180
200
1.0
0.5
0
0.5
1.0
1.5
2.0
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