Datasheet
4
Motorola Bipolar Power Transistor Device Data
10
0.2
Figure 8. Turn–Off Times
I
C
, COLLECTOR CURRENT (AMPS)
7
5
3
2
0.1
0.5
0.1
0.3 0.5 0.7 1 3 5 15
V
CC
= 30
I
C
/I
B
= 10
I
B
1 = I
B
2
T
J
= 25
°
C
0.3
t, TIME ( s)
µ
t
f
t
s
2
0.7
0.2
7 10
400
1.0
Figure 9. Capacitances
V
R
, REVERSE VOLTAGE (VOLTS)
20
20 50 100 200 500 10002.0 5.0 10
C, CAPACITANCE (pF)
200
100
50
30
T
J
= 25
°
C
C
ib
C
ob
2N3055A
MJ15015
MJ2955A
MJ15016
COLLECTOR CUT–OFF REGION
10,000
+ 0.2
Figure 10. 2N3055A, MJ15015
V
BE
, BASE–EMITTER VOLTAGE (VOLTS)
1000
100
10
1.0
, COLLECTOR CURRENT ( A)
µ
I
C
0.1
0.01
+ 0.1 0 –0.1 – 0.2 –0.3 – 0.4 – 0.5
V
CE
= 30 V
T
J
= 150
°
C
100
°
C
25
°
C
REVERSE
FORWARD
I
C
= I
CES
NPN
1000
–0.2
Figure 11. MJ2955A, MJ15016
V
BE
, BASE–EMITTER VOLTAGE (VOLTS)
100
10
1.0
0.1
, COLLECTOR CURRENT ( A)
µ
I
C
0.01
0.001
–0.1 0 +0.1 + 0.2 + 0.3
V
CE
= 30 V
T
J
= 150
°
C
100
°
C
25
°
C
REVERSE FORWARD
I
C
= I
CES
PNP
+ 0.4 + 0.5
20
Figure 12. Forward Bias Safe Operating Area
2N3055A, MJ2955A
V
CE
, COLLECTOR–EMITTER VOLTAGE (VOLTS)
10
5
1
10 20 10060
2
I
C
, COLLECTOR CURRENT (AMPS)
dc
30
µ
s
1 ms
100
µ
s
100 ms
20
Figure 13. Forward Bias Safe Operating Area
MJ15015, MJ15016
V
CE
, COLLECTOR–EMITTER VOLTAGE (VOLTS)
10
5.0
0.2
15 20 10060
2.0
I
C
, COLLECTOR CURRENT (AMP)
dc
0.1 ms
100 ms
BONDING WIRE LIMIT
THERMAL LIMIT @ T
C
= 25
°
C
(SINGLE PULSE)
SECOND BREAKDOWN LIMIT
1.0
0.5
30 120
1.0 ms
BONDING WIRE LIMIT
THERMAL LIMIT @ T
C
= 25
°
C
(SINGLE PULSE)
SECOND BREAKDOWN LIMIT
There are two limitations on the power handling ability of a
transistor: average junction temperature and second break-
down. Safe Operating area curves indicate I
C
– V
CE
limits of
the transistor that must be observed for reliable operation;
i.e., the transistor must not be subjected to greater dissipa-
tion than the curves indicate.
The data of Figures 12 and 13 is based on T
C
= 25 C;
T
J(pk)
is variable depending on power level. Second break-
down pulse limits are valid for duty cycles to 10% but must be
derated for temperature according to Figure 1.