ability of a transistor: average junction temperature and
second breakdown. 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 dissipation than the curves indicate.
The data of Figure 2 is based on T
J(pk)
= 200_C; T
C
is variable depending on conditions. At high case
temperatures, thermal limitations will reduce the power
that can be handled to values less than the limitations
imposed by second breakdown.
200
50 70 100
5.0 7.0 10
20 30
V
CE
, COLLECTOR−EMITTER VOLTAGE (VOLTS)
Figure 2. 2N3442
400
T
J
= 150°C
200
hFE , DC CURRENT GAIN
100
60
40
20
10
6.0
4.0
0.1
0.2
0.3
0.5 0.7 1.0
2.0
3.0
5.0 7.0 10
25°C
−55
°C
V
CE
= 4.0 V
VCE , COLLECTOR−EMITTER VOLTAGE (VOLTS)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
T
J
= 25°C
0
2.0
5.0
10
20
50
100 200
I
B
, BASE CURRENT (mA)
500
1.0 k 2.0 k
I
C
= 1.0 A
2.0 A
4.0 A
8.0 A
I
C
, COLLECTOR CURRENT (AMP)
Figure 3. DC Current Gain
Figure 4. Collector−Saturation Region
http://onsemi.com
3
2N3442
PACKAGE DIMENSIONS
TO−204 (TO−3)
CASE 1−07
ISSUE Z
A
N
C
−T−
E
D
2 PL
SEATING
PLANE
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. ALL RULES AND NOTES ASSOCIATED WITH
REFERENCED TO−204AA OUTLINE SHALL APPLY.
DIM
A
B
C
D
E
G
H
K
L
N
Q
U
V
INCHES
MIN
MAX
1.550 REF
−−− 1.050
0.250
0.335
0.038
0.043
0.055
0.070
0.430 BSC
0.215 BSC
0.440
0.480
0.665 BSC
−−− 0.830
0.151
0.165
1.187 BSC
0.131
0.188
MILLIMETERS
MIN
MAX
39.37 REF
−−− 26.67
6.35
8.51
0.97
1.09
1.40
1.77
10.92 BSC
5.46 BSC
11.18
12.19
16.89 BSC
−−− 21.08
3.84
4.19
30.15 BSC
3.33
4.77
K
M
0.13 (0.005)
U
V
2
T Q
M
Y
M
L
G
1
−Y−
H
B
−Q−
0.13 (0.005)
M
T Y
M
STYLE 1:
PIN 1. BASE
2. EMITTER
CASE: COLLECTOR
ON Semiconductor
and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
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operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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