2N3903, 2N3904

General Purpose
Transistors
NPN Silicon
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• Pb−Free Packages are Available*
COLLECTOR
3

MAXIMUM RATINGS 2
Rating Symbol Value Unit BASE

Collector −Emitter Voltage VCEO 40 Vdc

1
Collector −Base Voltage VCBO 60 Vdc EMITTER
Emitter −Base Voltage VEBO 6.0 Vdc
Collector Current − Continuous IC 200 mAdc
Total Device Dissipation PD
@ TA = 25°C 625 mW
Derate above 25°C 5.0 mW/°C TO−92
CASE 29
Total Device Dissipation PD
STYLE 1
@ TC = 25°C 1.5 W
Derate above 25°C 12 mW/°C
12 1
Operating and Storage Junction TJ, Tstg −55 to +150 °C 2
3 3
Temperature Range
STRAIGHT LEAD BENT LEAD
THERMAL CHARACTERISTICS (Note 1) BULK PACK TAPE & REEL
AMMO PACK
Characteristic Symbol Max Unit
Thermal Resistance, Junction−to−Ambient RqJA 200 °C/W
Thermal Resistance, Junction−to−Case RqJC 83.3 °C/W MARKING DIAGRAMS
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the 2N
Recommended Operating Conditions may affect device reliability. 390x
1. Indicates Data in addition to JEDEC Requirements. YWWG
G

x = 3 or 4
Y = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)

ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.

*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.

© Semiconductor Components Industries, LLC, 2012 1 Publication Order Number:

August, 2012 − Rev. 8 2N3903/D
 2N3903, 2N3904

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)

Characteristic Symbol Min Max Unit
OFF CHARACTERISTICS
Collector −Emitter Breakdown Voltage (Note 2) (IC = 1.0 mAdc, IB = 0) V(BR)CEO 40 − Vdc
Collector −Base Breakdown Voltage (IC = 10 mAdc, IE = 0) V(BR)CBO 60 − Vdc
Emitter −Base Breakdown Voltage (IE = 10 mAdc, IC = 0) V(BR)EBO 6.0 − Vdc
Base Cutoff Current (VCE = 30 Vdc, VEB = 3.0 Vdc) IBL − 50 nAdc
Collector Cutoff Current (VCE = 30 Vdc, VEB = 3.0 Vdc) ICEX − 50 nAdc
ON CHARACTERISTICS
DC Current Gain (Note 2) hFE −
(IC = 0.1 mAdc, VCE = 1.0 Vdc) 2N3903 20 −
2N3904 40 −
(IC = 1.0 mAdc, VCE = 1.0 Vdc) 2N3903 35 −
2N3904 70 −
(IC = 10 mAdc, VCE = 1.0 Vdc) 2N3903 50 150
2N3904 100 300
(IC = 50 mAdc, VCE = 1.0 Vdc) 2N3903 30 −
2N3904 60 −
(IC = 100 mAdc, VCE = 1.0 Vdc) 2N3903 15 −
2N3904 30 −
Collector −Emitter Saturation Voltage (Note 2) VCE(sat) Vdc
(IC = 10 mAdc, IB = 1.0 mAdc) − 0.2
(IC = 50 mAdc, IB = 5.0 mAdc − 0.3
Base −Emitter Saturation Voltage (Note 2) VBE(sat) Vdc
(IC = 10 mAdc, IB = 1.0 mAdc) 0.65 0.85
(IC = 50 mAdc, IB = 5.0 mAdc) − 0.95
SMALL−SIGNAL CHARACTERISTICS
Current −Gain − Bandwidth Product fT MHz
(IC = 10 mAdc, VCE = 20 Vdc, f = 100 MHz) 2N3903 250 −
2N3904 300 −
Output Capacitance (VCB = 5.0 Vdc, IE = 0, f = 1.0 MHz) Cobo − 4.0 pF
Input Capacitance (VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz) Cibo − 8.0 pF
Input Impedance hie kW
(IC = 1.0 mAdc, VCE = 10 Vdc, f = 1.0 kHz) 2N3903 1.0 8.0
2N3904 1.0 10
Voltage Feedback Ratio hre X 10− 4
(IC = 1.0 mAdc, VCE = 10 Vdc, f = 1.0 kHz) 2N3903 0.1 5.0
2N3904 0.5 8.0
Small−Signal Current Gain hfe −
(IC = 1.0 mAdc, VCE = 10 Vdc, f = 1.0 kHz) 2N3903 50 200
2N3904 100 400
Output Admittance (IC = 1.0 mAdc, VCE = 10 Vdc, f = 1.0 kHz) hoe 1.0 40 mmhos
Noise Figure NF dB
(IC = 100 mAdc, VCE = 5.0 Vdc, RS = 1.0 k W, f = 1.0 kHz) 2N3903 − 6.0
2N3904 − 5.0
SWITCHING CHARACTERISTICS
Delay Time (VCC = 3.0 Vdc, VBE = 0.5 Vdc, td − 35 ns
Rise Time IC = 10 mAdc, IB1 = 1.0 mAdc) tr − 35 ns
Storage Time (VCC = 3.0 Vdc, IC = 10 mAdc, 2N3903 ts − 175 ns
IB1 = IB2 = 1.0 mAdc) 2N3904 − 200

Fall Time tf − 50 ns
2. Pulse Test: Pulse Width v 300 ms; Duty Cycle v 2%.

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 2N3903, 2N3904

ORDERING INFORMATION
Device Package Shipping†
2N3903RLRM TO−92 2000 / Ammo Pack
2N3904 TO−92 5000 Units / Bulk
2N3904G TO−92 5000 Units / Bulk
(Pb−Free)

2N3904RLRA TO−92 2000 / Tape & Reel

2N3904RLRAG TO−92 2000 / Tape & Reel
(Pb−Free)

2N3904RLRM TO−92 2000 / Ammo Pack

2N3904RLRMG TO−92 2000 / Ammo Pack
(Pb−Free)

2N3904RLRP TO−92 2000 / Ammo Pack

2N3904RLRPG TO−92 2000 / Ammo Pack
(Pb−Free)

2N3904RL1G TO−92 2000 / Tape & Reel

(Pb−Free)

2N3904ZL1 TO−92 2000 / Ammo Pack

2N3904ZL1G TO−92 2000 / Ammo Pack
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.

+3 V
DUTY CYCLE = 2%
300 ns
+10.9 V 275

10 k
-0.5 V
< 1 ns CS < 4 pF*

* Total shunt capacitance of test jig and connectors

Figure 1. Delay and Rise Time Equivalent Test Circuit

+3 V
10 < t1 < 500 ms t1
+10.9 V
DUTY CYCLE = 2%
275

10 k
0

1N916 CS < 4 pF*

-9.1 V′
< 1 ns

* Total shunt capacitance of test jig and connectors

Figure 2. Storage and Fall Time Equivalent Test Circuit

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 2N3903, 2N3904

TYPICAL TRANSIENT CHARACTERISTICS

TJ = 25°C
TJ = 125°C

10 5000
VCC = 40 V
3000
7.0 IC/IB = 10
2000
CAPACITANCE (pF)

5.0

Q, CHARGE (pC)
1000
700
Cibo
3.0 500

300 QT
2.0 Cobo 200
QA
100
70
1.0 50
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
REVERSE BIAS VOLTAGE (VOLTS) IC, COLLECTOR CURRENT (mA)

Figure 3. Capacitance Figure 4. Charge Data

500 500
IC/IB = 10 VCC = 40 V
300 300
IC/IB = 10
200 200

100 100
t r, RISE TIME (ns)

70 tr @ VCC = 3.0 V 70
TIME (ns)

50 50

30 30
40 V
20 20
15 V
10 10
7 td @ VOB = 0 V 2.0 V 7
5 5
1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100 200 1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100 200
IC, COLLECTOR CURRENT (mA) IC, COLLECTOR CURRENT (mA)
Figure 5. Turn −On Time Figure 6. Rise Time

500 500
t′s = ts - 1/8 tf VCC = 40 V
300 IB1 = IB2 300
IC/IB = 20 IC/IB = 10 IB1 = IB2
200 200
IC/IB = 20
t s′ , STORAGE TIME (ns)

t f , FALL TIME (ns)

100 100
70 70
50 IC/IB = 20 50
IC/IB = 10 IC/IB = 10
30 30
20 20

10 10
7 7
5 5
1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100 200 1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100 200
IC, COLLECTOR CURRENT (mA) IC, COLLECTOR CURRENT (mA)

Figure 7. Storage Time Figure 8. Fall Time

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 2N3903, 2N3904

TYPICAL AUDIO SMALL−SIGNAL CHARACTERISTICS

NOISE FIGURE VARIATIONS
(VCE = 5.0 Vdc, TA = 25°C, Bandwidth = 1.0 Hz)
12 14
SOURCE RESISTANCE = 200 W f = 1.0 kHz IC = 1.0 mA
IC = 1.0 mA 12
10
NF, NOISE FIGURE (dB)

NF, NOISE FIGURE (dB)

10 IC = 0.5 mA
8 SOURCE RESISTANCE = 200 W
IC = 0.5 mA IC = 50 mA
8
6 SOURCE RESISTANCE = 1.0 k IC = 100 mA
IC = 50 mA 6
4
4

2 SOURCE RESISTANCE = 500 W 2

IC = 100 mA
0 0
0.1 0.2 0.4 1.0 2.0 4.0 10 20 40 100 0.1 0.2 0.4 1.0 2.0 4.0 10 20 40 100
f, FREQUENCY (kHz) RS, SOURCE RESISTANCE (k OHMS)

Figure 9. Figure 10.

h PARAMETERS
(VCE = 10 Vdc, f = 1.0 kHz, TA = 25°C)
300 100
hoe, OUTPUT ADMITTANCE (m mhos)

50

200
h fe , CURRENT GAIN

20

10
100

70 5

50
2

30 1
0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10 0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10
IC, COLLECTOR CURRENT (mA) IC, COLLECTOR CURRENT (mA)

Figure 11. Current Gain Figure 12. Output Admittance

20 10
h re , VOLTAGE FEEDBACK RATIO (X 10 -4 )

7.0
h ie , INPUT IMPEDANCE (k OHMS)

10
5.0
5.0
3.0

2.0 2.0

1.0
1.0
0.5
0.7

0.2 0.5
0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10 0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10
IC, COLLECTOR CURRENT (mA) IC, COLLECTOR CURRENT (mA)

Figure 13. Input Impedance Figure 14. Voltage Feedback Ratio

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 2N3903, 2N3904

TYPICAL STATIC CHARACTERISTICS

2.0
h FE, DC CURRENT GAIN (NORMALIZED)

TJ = +125°C VCE = 1.0 V

1.0 +25°C

0.7
0.5 -55°C

0.3

0.2

0.1
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
IC, COLLECTOR CURRENT (mA)

Figure 15. DC Current Gain

VCE, COLLECTOR EMITTER VOLTAGE (VOLTS)

1.0
TJ = 25°C
0.8
IC = 1.0 mA 10 mA 30 mA 100 mA

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
IB, BASE CURRENT (mA)

Figure 16. Collector Saturation Region

1.2 1.0
TJ = 25°C
1.0 VBE(sat) @ IC/IB =10 0.5 +25°C TO +125°C
qVC FOR VCE(sat)
COEFFICIENT (mV/ °C)
V, VOLTAGE (VOLTS)

0.8 0 -55°C TO +25°C

VBE @ VCE =1.0 V
0.6 -0.5
-55°C TO +25°C
0.4 -1.0
VCE(sat) @ IC/IB =10 +25°C TO +125°C
0.2 -1.5 qVB FOR VBE(sat)

0 -2.0
1.0 2.0 5.0 10 20 50 100 200 0 20 40 60 80 100 120 140 160 180 200
IC, COLLECTOR CURRENT (mA) IC, COLLECTOR CURRENT (mA)

Figure 17. “ON” Voltages Figure 18. Temperature Coefficients

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 2N3903, 2N3904

PACKAGE DIMENSIONS

TO−92 (TO−226)
CASE 29−11
ISSUE AM

NOTES:
A B STRAIGHT LEAD 1. DIMENSIONING AND TOLERANCING PER ANSI
BULK PACK Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
R IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
P BEYOND DIMENSION K MINIMUM.
L
SEATING INCHES MILLIMETERS
PLANE K DIM MIN MAX MIN MAX
A 0.175 0.205 4.45 5.20
B 0.170 0.210 4.32 5.33
C 0.125 0.165 3.18 4.19
D 0.016 0.021 0.407 0.533
X X D G 0.045 0.055 1.15 1.39
H 0.095 0.105 2.42 2.66
G J 0.015 0.020 0.39 0.50
H J K 0.500 --- 12.70 ---
L 0.250 --- 6.35 ---
V C N 0.080 0.105 2.04 2.66
P --- 0.100 --- 2.54
SECTION X−X R 0.115 --- 2.93 ---
1 N V 0.135 --- 3.43 ---

NOTES:
A B BENT LEAD
R 1. DIMENSIONING AND TOLERANCING PER
TAPE & REEL ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
AMMO PACK 3. CONTOUR OF PACKAGE BEYOND
DIMENSION R IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P
P AND BEYOND DIMENSION K MINIMUM.
T
MILLIMETERS
SEATING
PLANE K DIM MIN MAX
A 4.45 5.20
B 4.32 5.33
C 3.18 4.19
D 0.40 0.54
X X D G 2.40 2.80
J 0.39 0.50
G K 12.70 ---
J N 2.04 2.66
V P 1.50 4.00
C R 2.93 ---
V 3.43 ---
SECTION X−X
1 N STYLE 1:
PIN 1. EMITTER
2. BASE
3. COLLECTOR

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