MJD31 查看數據表（PDF） - Motorola => Freescale
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MJD31 Datasheet PDF : 6 Pages
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MJD31,C MJD32,C
2
1.6
1.2
IC = 0.3 A
1A
TJ = 25°C
3A
0.8
0.4
0
12
5 10 20 50 100 200
IB, BASE CURRENT (mA)
500 1000
Figure 7. Collector Saturation Region
300
TJ = + 25°C
200
100
Ceb
70
50
Ccb
30
0.1
0.2 0.3 0.5 1 2 3 5 10
VR, REVERSE VOLTAGE (VOLTS)
Figure 8. Capacitance
20 30 40
1
0.7
0.5
D = 0.5
0.3
0.2
0.2
0.1
0.1
0.05
0.07
0.01
0.05
0.03 SINGLE PULSE
0.02
RθJC(t) = r(t) RθJC
RθJC = 8.33°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) θJC(t)
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
0.01
0.01 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1
2 3 5 10 20 30 50 100 200 300 500 1 k
t, TIME (ms)
Figure 9. Thermal Response
10
5
3
2
100 µs
500 µs
1 ms
1
dc
0.5
WIRE BOND LIMIT
0.3
THERMAL LIMIT
0.2
SECOND BREAKDOWN LIMIT
0.1 CURVES APPLY BELOW RATED VCEO
0.05
0.03
TC = 25°C SINGLE PULSE
TJ = 150°C
MJD31, MJD32
0.02
MJD31C, MJD32C
0.01
1.5 2 3
5 7 10
20 30 50 70 100 150
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
Figure 10. Active Region Safe Operating Area
There are two limitations on the power handling ability of a
transistor: average junction temperature and second break-
down. 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 dissipa-
tion than the curves indicate.
The data of Figure 10 is based on TJ(pk) = 150_C; TC is
variable depending on conditions. Second breakdown pulse
vlimits are valid for duty cycles to 10% provided TJ(pk)
150_C. TJ(pk) may be calculated from the data in Fig-
ure 9. At high case temperatures, thermal limitations will re-
duce the power that can be handled to values less than the
limitations imposed by second breakdown.
4
Motorola Bipolar Power Transistor Device Data
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