MMBT3904WT1, NPN, SMMBT3904WT1, NPN, MMBT3906WT1, PNP
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) (Continued)
Characteristic
SMALL−SIGNAL CHARACTERISTICS
Current −Gain − Bandwidth Product
(IC = 10 mAdc, VCE = 20 Vdc, f = 100 MHz)
(IC = −10 mAdc, VCE = −20 Vdc, f = 100 MHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Output Capacitance
(VCB = 5.0 Vdc, IE = 0, f = 1.0 MHz)
(VCB = −5.0 Vdc, IE = 0, f = 1.0 MHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Input Capacitance
(VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz)
(VEB = −0.5 Vdc, IC = 0, f = 1.0 MHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Input Impedance
(VCE = 10 Vdc, IC = 1.0 mAdc, f = 1.0 kHz)
(VCE = −10 Vdc, IC = −1.0 mAdc, f = 1.0 kHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Voltage Feedback Ratio
(VCE = 10 Vdc, IC = 1.0 mAdc, f = 1.0 kHz)
(VCE = −10 Vdc, IC = −1.0 mAdc, f = 1.0 kHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Small −Signal Current Gain
(VCE = 10 Vdc, IC = 1.0 mAdc, f = 1.0 kHz)
(VCE = −10 Vdc, IC = −1.0 mAdc, f = 1.0 kHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Output Admittance
(VCE = 10 Vdc, IC = 1.0 mAdc, f = 1.0 kHz)
(VCE = −10 Vdc, IC = −1.0 mAdc, f = 1.0 kHz)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Noise Figure
(VCE = 5.0 Vdc, IC = 100 mAdc, RS = 1.0 k W, f = 1.0 kHz)
MMBT3904WT1, SMMBT3904WT1
(VCE = −5.0 Vdc, IC = −100 mAdc, RS = 1.0 k W, f = 1.0 kHz)
MMBT3906WT1
SWITCHING CHARACTERISTICS
Characteristic
Condition
Delay Time
Rise Time
Storage Time
Fall Time
(VCC = 3.0 Vdc, VBE = − 0.5 Vdc)
MMBT3904WT1, SMMBT3904WT1
(VCC = −3.0 Vdc, VBE = 0.5 Vdc)
MMBT3906WT1
(IC = 10 mAdc, IB1 = 1.0 mAdc)
MMBT3904WT1, SMMBT3904WT1
(IC = −10 mAdc, IB1 = −1.0 mAdc)
MMBT3906WT1
(VCC = 3.0 Vdc, IC = 10 mAdc)
MMBT3904WT1, SMMBT3904WT1
(VCC = −3.0 Vdc, IC = −10 mAdc)
MMBT3906WT1
(IB1 = IB2 = 1.0 mAdc)
(IB1 = IB2 = −1.0 mAdc)
MMBT3904WT1, SMMBT3904WT1
MMBT3906WT1
Symbol
fT
Cobo
Cibo
hie
hre
hfe
hoe
NF
Symbol
td
tr
ts
tf
Min
Max
Unit
MHz
300
−
250
−
pF
−
4.0
−
4.5
pF
−
8.0
−
10.0
kW
1.0
10
2.0
12
X 10− 4
0.5
8.0
0.1
10
−
100
400
100
400
mmhos
1.0
40
3.0
60
dB
−
5.0
−
4.0
Min
Max
Unit
35
ns
−
35
−
35
−
35
−
200
ns
−
225
−
−
50
−
75
MMBT3904WT1, SMMBT3904WT1
DUTY CYCLE = 2%
300 ns
- 0.5 V
+10.9 V
10 k
< 1 ns
+3 V
275
10 < t1 < 500 ms
t1
DUTY CYCLE = 2%
CS < 4 pF*
0
- 9.1 V
+10.9 V
10 k
1N916
< 1 ns
+3 V
275
CS < 4 pF*
* 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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