* Total shunt capacitance of test jig and connectors
Figure 1. Delay and Rise Time
Equivalent Test Circuit
Figure 2. Storage and Fall Time
Equivalent Test Circuit
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2
10
7.0
5.0
3.0
CAPACITANCE (pF)
2.0
1.0
0.1
C
0.2 0.3 0.5 0.7
1.02.0 3.0 5.0 7.0 1020
REVERSE BIAS VOLTAGE (VOLTS)
MMBT3904LT1
TYPICAL TRANSIENT CHARACTERISTICS
T
= 25°C
J
T
= 125°C
J
5000
3000
2000
1000
ibo
C
obo
30 40
700
500
300
Q, CHARGE (pC)
200
100
70
50
1.0
VCC = 40 V
I
= 10
C/IB
Q
T
Q
A
2.0 3.05.0 7.0 1020 3050 70 100200
IC, COLLECTOR CURRENT (mA)
Figure 3. Capacitance
500
300
200
100
70
50
30
TIME (ns)
20
10
7
1.02.0 3.01020
5.0 7.03050
IC, COLLECTOR CURRENT (mA)
Figure 5. Turn−On Time
500
300
IC/IB = 20
200
100
70
50
30
20
′
s
t , STORAGE TIME (ns)
10
7
1.02.0 3.01020
IC/IB = 10
5.0 7.03050
IC, COLLECTOR CURRENT (mA)
td @ VOB = 0 V
IC/IB = 10
tr @ VCC = 3.0 V
40 V
15 V
2.0 V
705100
t′
= ts − 1/8 t
s
I
=I
B1
B2
IC/IB = 20
IC/IB = 10
705100
Figure 4. Charge Data
500
300
200
VCC = 40 V
I
= 10
C/IB
100
70
50
30
r
20
t , RISE TIME (ns)
10
7
200
1.02.0 3.01020
5.0 7.03050
705100
200
IC, COLLECTOR CURRENT (mA)
Figure 6. Rise Time
500
f
300
200
IC/IB = 20
100
70
50
30
f
t , FALL TIME (ns)
20
IC/IB = 10
10
7
200
1.02.0 3.01020
5.0 7.0
3050
IC, COLLECTOR CURRENT (mA)
VCC = 40 V
I
= I
B1
B2
705100
200
Figure 7. Storage Time
Figure 8. Fall Time
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3
MMBT3904LT1
TYPICAL AUDIO SMALL−SIGNAL CHARACTERISTICS
NOISE FIGURE VARIATIONS
(VCE = 5.0 Vdc, TA = 25°C, Bandwidth = 1.0 Hz)
12
10
8
6
4
NF, NOISE FIGURE (dB)
2
0
300
200
SOURCE RESISTANCE = 200
I
= 1.0 mA
C
SOURCE RESISTANCE = 500
I
= 100 A
C
0.1
0.20.4
SOURCE RESISTANCE = 200
I
= 0.5 mA
C
SOURCE RESISTANCE = 1.0 k
I
= 50 A
C
1.02.04.01020
f, FREQUENCY (kHz)
Figure 9.
(VCE = 10 Vdc, f = 1.0 kHz, TA = 25°C)
NF, NOISE FIGURE (dB)
40
100
h PARAMETERS
14
f = 1.0 kHz
12
10
8
6
4
2
0
0.11.02.04.01020
0.20.4
IC = 1.0 mA
IC = 0.5 mA
RS, SOURCE RESISTANCE (k OHMS)
Figure 10.
100
50
20
IC = 50 A
IC = 100 A
40
100
100
70
fe
h , CURRENT GAIN
50
30
0.10.21.02.0
0.30.53.0
IC, COLLECTOR CURRENT (mA)
Figure 11. Current Gain
20
10
5.0
2.0
1.0
ie
0.5
h , INPUT IMPEDANCE (k OHMS)
0.2
0.10.21.02.0
0.30.53.0
IC, COLLECTOR CURRENT (mA)
5.010
5.010
10
5
oe
h , OUTPUT ADMITTANCE ( mhos)
2
1
0.10.21.02.0
0.30.53.0
IC, COLLECTOR CURRENT (mA)
Figure 12. Output Admittance
10
−4
7.0
5.0
3.0
2.0
1.0
0.7
re
h , VOLTAGE FEEDBACK RATIO (X 10 )
0.5
0.10.21.02.0
0.30.53.0
IC, COLLECTOR CURRENT (mA)
5.010
5.0
10
Figure 13. Input Impedance
Figure 14. V oltage Feedback Ratio
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4
MMBT3904LT1
TYPICAL STATIC CHARACTERISTICS
2.0
1.0
0.7
0.5
0.3
0.2
FE
h , DC CURRENT GAIN (NORMALIZED)
0.1
0.1
1.0
0.8
0.6
0.4
0.20.3
IC = 1.0 mA
T
= +125°C
J
+25°C
−55 °C
0.52.03.01050
1.00.7
IC, COLLECTOR CURRENT (mA)
30205.07.0
Figure 15. DC Current Gain
10 mA30 mA100 mA
70
VCE = 1.0 V
100
T
= 25°C
J
200
0.2
CE
V , COLLECTOR EMITTER VOLTAGE (VOLTS)
0
1.2
T
= 25°C
J
1.0
0.8
0.6
0.4
V, VOLTAGE (VOLTS)
0.2
1.02.05.01020
IC, COLLECTOR CURRENT (mA)
Figure 17. “ON” Voltages
V
CE(sat)
0.1
0.070.050.030.020.01
IB, BASE CURRENT (mA)
0.52.03.0100.20.3
Figure 16. Collector Saturation Region
1.0
V
@ IC/IB =10
BE(sat)
VBE @ VCE =1.0 V
@ IC/IB =10
500100
200
0.5
°
0
−0.5
−1.0
COEFFICIENT (mV/ C)
−1.5
−2.0
06080120 140160
1.00.75.07.0
+25°C TO +125°C
VC FOR V
VB FOR V
2040
CE(sat)
−55 °C TO +25°C
−55 °C TO +25°C
+25°C TO +125°C
BE(sat)
100
IC, COLLECTOR CURRENT (mA)
Figure 18. Temperature Coefficients
180
200
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5
MMBT3904LT1
PACKAGE DIMENSIONS
SOT−23 (TO−236)
CASE 318−08
ISSUE AH
A
L
3
1
2
GV
D
S
B
C
H
K
J
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD
FINISH THICKNESS. MINIMUM LEAD THICKNESS
IS THE MINIMUM THICKNESS OF BASE
MATERIAL.
4. 318−03 AND −07 OBSOLETE, NEW STANDARD
318−08.
INCHES
DIMAMINMAXMINMAX
0.1102 0.11972.803.04
B 0.0472 0.05511.201.40
C 0.0350 0.04400.891.11
D 0.0150 0.02000.370.50
G 0.0701 0.08071.782.04
H 0.0005 0.0040 0.013 0.100
J 0.0034 0.0070 0.085 0.177
K 0.0140 0.02850.350.69
L 0.0350 0.04010.891.02
S 0.0830 0.10392.102.64
V 0.0177 0.02360.450.60
STYLE 6:
PIN 1. BASE
2. EMITTER
3. COLLECTOR
MILLIMETERS
SOLDERING FOOTPRINT*
0.95
0.95
0.037
0.037
2.0
0.079
0.9
0.035
0.8
0.031
mm
SCALE 10:1
inches
Figure 19. SOT−23
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
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ON Semiconductor Website: http://onsemi.com
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For additional information, please contact your
local Sales Representative.
MMBT3904LT1/D
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