Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
q
JA
q
JC
200°C/W
83.3°C/W
TO−92
CASE 29
STYLE 1
2
BASE
1 EMITTER
1
2
3
STRAIGHT LEAD
BULK PACK
MARKING DIAGRAM
2N
5087
AYWWG
G
1
2
3
BENT LEAD
TAPE & REEL
AMMO PACK
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
CURRENT LIMIT
THERMAL LIMIT
SECOND BREAKDOWN LIMIT
4.06.08.0 1020
VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)
SINGLE PULSE
T
TA = 25°C
= 25°C
C
1.0 ms
dc
Figure 18. Active−Region Safe Operating Area
4
10
VCC = 30 V
3
10
I
2
10
1
10
0
10
, COLLECTOR CURRENT (nA)
C
−1
I
10
−2
10
−40
−200+ 20 +40 +60 +80 + 100 + 120 + 140 + 160
TJ, JUNCTION TEMPERATURE (°C)
CEO
I
CEX
dc
@ V
t, TIME (ms)
Figure 17. Thermal Response
10 ms
The safe operating area curves indicate IC−VCE limits of
the transistor that must be observed for reliable operation.
100 ms
1.0 s
Collector load lines for specific circuits must fall below the
limits indicated by the applicable curve.
The data of Figure 18 is based upon T
TA is variable depending upon conditions. Pulse curves are
valid for duty cycles to 10% provided T
may be calculated from the data in Figure 17. At high case
or ambient temperatures, thermal limitations will reduce the
power than can be handled to values less than the limitations
imposed by second breakdown.
DESIGN NOTE: USE OF THERMAL RESPONSE DATA
40
A train of periodical power pulses can be represented by
the model as shown in Figure 19. Using the model and the
device thermal response the normalized effective transient
thermal resistance of Figure 17 was calculated for various
duty cycles.
To find Z
17 by the steady state value R
Example:
The 2N5087 is dissipating 2.0 watts peak under the following conditions:
I
CBO
AND
BE(off)
= 3.0 V
Using Figure 17 at a pulse width of 1.0 ms and D = 0.2, the
reading of r(t) is 0.22.
The peak rise in junction temperature is therefore
DT = r(t) x P
For more information, see ON Semiconductor Application
Note AN569/D, available from the Literature Distribution
Center or on our website at www.onsemi.com.
FIGURE 19
P
(pk)
t
1
t
2
, multiply the value obtained from Figure
JA(t)
q
DUTY CYCLE, D = t1/t
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1 (SEE AN569)
Z
= r(t) w R
q
JA(t)
T
− TA = P
J(pk)
.
JA
q
q
JA
Z
(pk)
= 150°C; TC or
J(pk)
≤ 150°C. T
J(pk)
t1 = 1.0 ms, t2 = 5.0 ms (D = 0.2)
(pk)
x R
= 0.22 x 2.0 x 200 = 88°C.
JA
q
2
q
JA(t)
100k
50k
J(pk)
Figure 19. Typical Collector Leakage Current
http://onsemi.com
6
2N5087
TO−92 (TO−226)
PACKAGE DIMENSIONS
CASE 29−11
ISSUE AM
SEATING
PLANE
R
T
SEATING
PLANE
A
B
STRAIGHT LEAD
BULK PACK
R
P
L
K
XX
V
1
G
H
C
N
D
J
SECTION X−X
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
DIM MINMAXMINMAX
A 0.175 0.2054.455.20
B 0.170 0.2104.325.33
C 0.125 0.1653.184.19
D 0.016 0.021 0.407 0.533
G 0.045 0.0551.151.39
H 0.095 0.1052.422.66
J0.015 0.0200.390.50
K 0.500−−− 12.70−−−
L0.250−−−6.35−−−
N 0.080 0.1052.042.66
P−−− 0.100−−−2.54
R0.115−−−2.93−−−
V0.135−−−3.43−−−
MILLIMETERSINCHES
N
A
B
P
K
XX
G
V
1
C
N
BENT LEAD
TAPE & REEL
AMMO PACK
D
J
SECTION X−X
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION:
MILLIMETERS.
3. CONTOUR OF PACKAGE BEYOND
DIMENSION R IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN
P AND BEYOND DIMENSION K MINIMUM.
MILLIMETERS
DIM MINMAX
A4.455.20
B4.325.33
C3.184.19
D0.400.54
G2.402.80
J0.390.50
K 12.70−−−
N2.042.66
P1.504.00
R2.93−−−
V3.43−−−
STYLE 1:
PIN 1. EMITTER
2. BASE
3. 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
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2N5087/D
7
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