LESHAN RADIO COMPANY, LTD.
O11–1/6
1
3
2
MMBT3904LT1
2
EMITTER
3
COLLECTOR
1
BASE
CASE 318–08, STYLE 6
SOT–23 (TO–236AB)
General Purpose Transistor
NPN Silicon
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector–Emitter V oltage V CEO 40 Vdc
Collector–Base V oltage V CBO 60 Vdc
Emitter–Base V oltage V EBO 6.0 Vdc
Collector Current — Continuous I C200 mAdc
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Total Device Dissipation FR– 5 Board, (1) PD225 mW
TA = 25°C
Derate above 25°C 1.8 mW/°C
Thermal Resistance, Junction to Ambient RθJA 55 6 °C/W
Total Device Dissipation PD300 mW
Alumina Substrate, (2) TA = 25°C
Derate above 25°C 2.4 mW/°C
Thermal Resistance, Junction to Ambient RθJA 417 °C/W
Junction and Storage Temperature TJ , Tstg –55 to +150 °C
DEVICE MARKING
MMBT3904LT1 = 1AM
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted.)
Characteristic Symbol Min Max Unit
OFF CHARACTERISTICS
Collector–Emitter Breakdown V oltage(3) V (BR)CEO 40 — Vdc
(I C = 1.0 mAdc, I B = 0)
Collector–Base Breakdown V oltage V (BR)CBO 60 — Vdc
(I C = 10 µAdc, I E = 0)
Emitter–Base Breakdown V oltage V (BR)EBO 6.0 — Vdc
(I E = 10 µAdc, 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. FR–5 = 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 µs, Duty Cycle
<
2.0%.
LESHAN RADIO COMPANY, LTD.
O11–2/6
MMBT3904LT1
ELECTRICAL CHARACTERISTICS (T A = 25°C unless otherwise noted) (Continued)
Characteristic Symbol Min Ma x Unit
ON CHARACTERISTICS (3)
DC Current Gain(1) hFE ––
(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 ––
Collector–Emitter Saturation V oltage VCE(sat) Vdc
(I C = 10 mAdc, I B = 1.0 mAdc)(3) –– 0.2
(I C = 50 mAdc, I B = 5.0mAdc) –– 0.3
Base–Emitter Saturation V oltage(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
SMALL–SIGNAL CHARACTERISTICS
Current–Gain — Bandwidth Product f T300 –– 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)
Small–Signal 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 θmhos
(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 = 100µAdc, R S = 1.0 k Ω, f = 1.0 kHz)
SWITCHING CHARACTERISTICS
Delay T ime (V CC = 3.0 Vdc,V BE = –0.5Vdc t d—35
ns
Rise T ime I C = 10 mAdc, I B1 = 1.0mAdc) t r—35
Storage T ime (V CC = 3.0Vdc, t s— 200
Fall T ime I C = 10 mAdc,I B1 = I B2 = 10 mAdc) t f—50
ns
3. Pulse Test: Pulse Width
<
300 µs, Duty Cycle
<
2.0%.
LESHAN RADIO COMPANY, LTD.
O11–3/6
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 µs
* 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)
CAPACITANCE (pF)
V
CC
= 40 V
I
C
/I
B
= 10
Q
T
Q
A
C
ibo
C
obo
T
J
= 25°C
T
J
= 125°C
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.
O11–4/6
MMBT3904LT1
I C , COLLECTOR CURRENT (mA)
Figure 5. Turn–On Time I C , COLLECTOR CURRENT (mA)
Figure 6. Rise Time
I C , COLLECTOR CURRENT (mA)
Figure 7. Storage Time I C , COLLECT OR CURRENT (mA)
Figure 8. Fall Time
TYPICAL AUDIO SMALL–SIGNAL CHARACTERISTICS
NOISE FIGURE VARIATIONS
(V CE = 5.0 Vdc, T A = 25°C, Bandwidth = 1.0 Hz)
t r, RISE TIME (ns)
t f, , FALL 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 µA
I
C
= 100 µA
SOURCE RESISTANCE=200Ω
I
C
= 1.0 mA
SOURCE RESISTANCE =200Ω
I
C
= 0.5 mA
SOURCE RESISTANCE=500Ω
I
C
= 100 µA
SOURCE RESISTANCE =1.0k
I
C
= 50µA
R S , SOURCE RESISTANCE (kΩ)
Figure 10.
1.0 2.0 3.0 5.0 7.010 20 30 50 70 100 200
500
300
200
100
70
50
30
20
10
7
5
TIME (ns)
t ’s , STORAGE TIME (ns)
1.0 2.0 3.0 5.0 7.010 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 7.010 20 30 50 70 100 200
500
300
200
100
70
50
30
20
10
7
51.0 2.0 3.0 5.0 7.010 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
00.1 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.
O11–5/6
h PARAMETERS
(V CE = 10 Vdc, f = 1.0 kHz, T A = 25°C)
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
hfe, CURRENT
hoe, OUTPUT ADMITTANCE ( mhos)
h re, VOLTAGE FEEDBACK RATIO (X 10–4 )
hie, INPUT IMPEDANCE (kΩ)
h FE, DC CURRENT GAIN (NORMALIZED)
T
J
= +125°C
+25°C
–55°C
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.
O11–6/6
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 VOLTAGE (VOLTS)
V, VOLTAGE (VOLTS)
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
= 25°C
10 mA 30 mA 100 mA
T
J
= 25°C V
BE(sat)
@ I
C
/I
B
=10
V
CE(sat)
@ I
C
/I
B
=10
V
BE
@ V
CE
=1.0 V
+25°C TO +125°C
–55°C TO +25°C
+25°C TO +125°C
–55°C TO +25°C
θ
VC
FOR V
CE(sat)
θ
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
