BDX53B, BDX53C (NPN), BDX54B, BDX54C (PNP)
10,000
hFE, SMALL-SIGNAL CURRENT GAIN
5000
3000
2000
1000
500
300
200
100
50
30
20
10
1.0
2.0
C, CAPACITANCE (pF)
300
T
J
= + 25°C
200
T
J
= 25°C
V
CE
= 3.0 V
I
C
= 3.0 A
PNP
NPN
5.0
10
20
50 100
f, FREQUENCY (kHz)
200
500
1000
100
70
50
PNP
NPN
30
0.1
0.2
C
ib
C
ob
0.5 1.0 2.0
5.0 10
20
V
R
, REVERSE VOLTAGE (VOLTS)
50
100
Figure 6. Small‐Signal Current Gain
Figure 7. Capacitance
NPN
BDX53B, 53C
20,000
V
CE
= 4.0 V
10,000
hFE, DC CURRENT GAIN
5000
3000
2000
1000
- 55°C
500
300
200
0.1
T
J
= 150°C
10,000
hFE, DC CURRENT GAIN
5000
3000
2000
1000
500
300
200
0.1
- 55°C
25°C
T
J
= 150°C
20,000
PNP
BDX54B, 54C
V
CE
= 4.0 V
25°C
0.2
0.3
0.5 0.7 1.0
2.0 3.0
I
C
, COLLECTOR CURRENT (AMP)
5.0 7.0 10
0.2
0.3
0.5 0.7 1.0
2.0 3.0
I
C
, COLLECTOR CURRENT (AMP)
5.0 7.0
10
Figure 8. DC Current Gain
VCE , COLLECTOR-EMITTER VOLTAGE (VOLTS)
VCE , COLLECTOR-EMITTER VOLTAGE (VOLTS)
3.0
T
J
= 25°C
2.6
I
C
= 2.0 A
2.2
4.0 A
6.0 A
3.0
T
J
= 25°C
2.6
I
C
= 2.0 A
2.2
4.0 A
6.0 A
1.8
1.8
1.4
1.4
1.0
0.3
0.5 0.7 1.0
2.0 3.0
5.0 7.0 10
I
B
, BASE CURRENT (mA)
20
30
1.0
0.3
0.5 0.7 1.0
2.0 3.0
5.0 7.0
I
B
, BASE CURRENT (mA)
10
20
30
Figure 9. Collector Saturation Region
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