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MJE243G_14 Datasheet, PDF (4/6 Pages) ON Semiconductor – Complementary Silicon Power Plastic Transistors
MJE243G (NPN), MJE253G (PNP)
10
5.0
100 ms 500 ms
2.0
1.0 ms
1.0
0.5
0.2
0.1
0.05
0.02
0.01
1.0
dc
TJ = 150°C
BONDING WIRE LIMITED
THERMALLY LIMITED @
TC = 25°C (SINGLE PULSE)
SECOND BREAKDOWN LIMITED
CURVES APPLY BELOW
 RATED VCEO
5.0 ms
MJE243/MJE253
2.0 3.0 5.0 7.0 10
20 30 50 70 100
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
Figure 5. Active Region Safe Operating Area
There are two limitations on the power handling ability of
a transistor: average junction temperature and second
breakdown. Safe operating area curves indicate IC − VCE
limits of the transistor that must be observed for reliable
operation; i.e., the transistor must not be subjected to greater
dissipation than the curves indicate.
The data of Figure 5 is based on TJ(pk) = 150_C; TC is
variable depending on conditions. Second breakdown pulse
limits are valid for duty cycles to 10% provided TJ(pk)
≤ 150_C. TJ(pk) may be calculated from the data in Figure 4.
At high case temperatures, thermal limitations will reduce
the power that can be handled to values less than the
limitations imposed by second breakdown.
10K
5K
VCC = 30 V
3K
ts
IC/IB = 10
2K
IB1 = IB2
1K
TJ = 25°C
500
300
200
100
50
30
20
tf
NPN MJE243
PNP MJE253
10
0.01 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1 2 3 5 10
IC, COLLECTOR CURRENT (AMPS)
Figure 6. Turn−Off Time
200
100
70
50
30
20
10
1.0
TJ = 25°C
Cib
Cob
MJE243 (NPN)
MJE253 (PNP)
2.0 3.0 5.0 7.0 10
20 30
VR, REVERSE VOLTAGE (VOLTS)
Figure 7. Capacitance
50 70 100
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