BC238B Motorola, BC238B Datasheet - Page 3

• Manufacturer Part Number: BC238B
• Description: Amplifier Transistors
• Manufacturer: Motorola

Motorola Small–Signal Transistors, FETs and Diodes Device Data
400
300
200
100
2.0
1.5
1.0
0.8
0.6
0.4
0.3
0.2
80
60
40
30
20
0.2
0.5
Figure 3. Current–Gain — Bandwidth Product
0.7
0.5
Figure 1. Normalized DC Current Gain
1.0
1.0
I C , COLLECTOR CURRENT (mAdc)
I C , COLLECTOR CURRENT (mAdc)
2.0 3.0
2.0
5.0
5.0 7.0 10
10
170
160
150
140
130
120
20
0.1
50
20
V CE = 10 V
T A = 25 C
V CE = 10 V
T A = 25 C
Figure 5. Base Spreading Resistance
0.2
100
30
V CE = 10 V
f = 1.0 kHz
T A = 25 C
0.3
I C , COLLECTOR CURRENT (mAdc)
200
50
0.5
1.0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
7.0
5.0
3.0
2.0
1.0
10
0
0.1
0.4 0.6 0.8 1.0
T A = 25 C
2.0
Figure 2. “Saturation” and “On” Voltages
0.2
0.3 0.5 0.7 1.0
3.0
V BE(sat) @ I C /I B = 10
BC237,A,B,C BC238B,C BC239,C
I C , COLLECTOR CURRENT (mAdc)
V R , REVERSE VOLTAGE (VOLTS)
Figure 4. Capacitances
5.0
2.0
C ib
2.0 3.0 5.0 7.0 10
10
4.0
V CE(sat) @ I C /I B = 10
C ob
6.0 8.0 10
V BE(on) @ V CE = 10 V
20 30 50 70 100
T A = 25 C
20
40
3