PRODUCTS
Small Signal Transistors
NPN Small Signal Transistor ╱ SOT-23
Part Number
VCBO
( V )
VCEO
( V )
I C
( mA )
h FE @ IC /VCE V CE ( sat )@ I C /I B f T 
min( MHz )
Min-Max ( mA / V ) Max ( V ) ( mA )
MMBT3904
60
40
200
100-300
10/1.0
0.3
50/5.0
300
MMBT2222A
75
40
600
40
500/10
0.3
150/50
300
MMBT4401
60
40
600
80
10/1.0
0.4
150/50
250
MMBT5551
160
140
600
80-250
10/5.0
0.2
150/15
100
MMBTA42
300
300
500
25
30/10
0.5
20/2.0
50
BC817-16
50
45
500
100-250
100/1.0
0.7
500/50
200
BC817-25
50
45
500
160-400
100/1.0
0.7
500/50
200
BC817-40
50
45
500
250-600
100/1.0
0.7
500/50
200
BC846A
80
65
100
110-220
2.0/5.0
0.6
100/5.0
100
BC846B
80
65
100
200-450
2.0/5.0
0.6
100/5.0
100
BC847A
50
45
100
110-220
2.0/5.0
0.6
100/5.0
100
BC847B
50
45
100
200-450
2.0/5.0
0.6
100/5.0
100
BC848A
30
30
100
110-220
2.0/5.0
0.6
100/5.0
100
BC848B
30
30
100
200-450
2.0/5.0
0.6
100/5.0
100
BC848C
30
30
100
420-800
2.0/5.0
0.6
100/5.0
100
S9013
40
25
500
40
500/1.0
0.6
500/50
150
S9014
50
45
100
200-1000
1.0/5.0
0.3
100/5.0
150
S9018
25
18
50
70-190
1.0/5.0
0.5
10/1.0
600
S8050
40
25
500
50
500/1.0
0.6
500/50
150
SS8050
40
25
1500
40
800/1.0
0.5
800/80
100
C1815
60
50
150
130-400
2.0/6.0
0.25
100/10
80
C945
60
50
150
40
0.1/6.0
0.3
100/10
150