MMBT2222ALP4 Datasheet, PDF (3/7 Pages) Diodes Incorporated – 40V NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR

MMBT2222ALP4
Thermal Characteristics
1 _{D = 0.9}
D = 0.7
D = 0.5
D = 0.3
0.1
D = 0.1
D = 0.05
D = 0.02
0.01 _{D = 0.01}
D = 0.005
D = Single Pulse
0.001
0.000001
0.0001
1,000
R_θJA(t) = r(t) * R_θJA
R_θJA = 272°C/W
Duty Cycle, D = t1/ t2
0.01
1
100
t1, PULSE DURATION TIME (sec)
Figure 1 Transient Thermal Resistance
0.5
10,000
100
10
Single Pulse
R_θJA = 272°C/W
R_θJA(t) = r_(t) * R_θJA
T_J - T_A = P * R_θJA(t)
0.4
0.3
0.2
1
0.1 ^RθJA ^{= 272°C/W}
0.1
1E-06 0.0001 0.01
1
100 10,000
t1, PULSE DURATION TIME (sec)
Figure 2 Single Pulse Maximum Power Dissipation
0
0
50
100
150
200
T_A, AMBIENT TEMPERATURE (°C)
Figure 3 Power Dissipation vs. Ambient Temperature
MMBT2222ALP4
Document number: DS35506 Rev. 3 - 2
3 of 7
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August 2012
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