MJE18204 Datasheet, PDF (9/12 Pages) Motorola, Inc – POWER TRANSISTORS 5 AMPERES 1200 VOLTS 35 and 75 WATTS

TYPICAL THERMAL RESPONSE
(IB1 = IB2 FOR ALL CURVES)
MJE18204 MJF18204
1
D = 0.5
0.2
0.1
0.1 _0.05
0.02
SINGLE PULSE
0.01
0.01
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
R_θJC(t) = r(t) R_θJC
R_θJC = 1.65°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) R_θJC(t)
0.1
1
10
100
1000
t, TIME (ms)
Figure 22. Typical Thermal Response (Z_θJC(t)) for MJE18204
1
D = 0.5
0.2
0.1
0.1
0.05
0.02
0.01
0.01
SINGLE PULSE
0.1
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
R_θJC(t) = r(t) R_θJC
R_θJC = 3.55°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) R_θJC(t)
1
10
100
1000
t, TIME (ms)
Figure 23. Typical Thermal Response (Z_θJC(t)) for MJF18204
10000
100000
Motorola Bipolar Power Transistor Device Data
9