2N 1539 thru 2N 1548 (continued)
BASE CURRENT versus EMITTER BASE VOLTAGE DC CURRENT GAIN versus COLLECTOR CURRENT
10 0 240
I I I I
0 YCE =- 2 Y Ye .=- 2Y
200
o. I I
. .. I I
! 70
2N1539-2N1543 \ - z 160
.....
IE
III
:::>
60
I 17II
~
5 .......
, / 2N1544-2Nl548
...
!
50
II
II 120
...
:::> -...r- ~
~ 40 2N1544-2N1548 .........
0 1'-..... ~ I 80 '-
~
20 / / 40 ~
2N1539-2N1543 I/
//
10
o
o 0.1 0.2
./". " ,
0.3 0.4 0.5 0.6
o
o
rI I 4
V'" EMITIER-BASE VOLTAGE (VOLTS) Ie. COLLECTOR CURRENT (AMP)
2N 1549, A thru 2N 1560, A(GERMANIUM)
PNP germanium power transistors for switching and
amplifier applications in high-reliability equipment.
For units with solder lugs attached, specify
devices MP1549, A etc_ (TO-4·1 package) CASE 4-04
CASE 11A
(TO-3 modifiedl ITO-411
MAXIMUM RATINGS Apply to corresponding "Hi-Rei" Series also
2N1549 2N1550 2N1551 2N1552
Rating Symbol 2N1553 2N1554 2N1555 2N1556 Units
2N1557 2N1558 2N1559 2N1560
Collector-Emitter Voltage VCEX 40 60 80 100 Vdc
Collector-Emitter Voltage 30 45 60 75 Vdc
VCES -
Collector- Emitter Voltage 20 30 40 50 Vdc
VCEO -
Collector-Base Voltage VCB 40 60 80 100 Vdc
Emitter-Base Voltage VED 20 30 40 50 Vdc
Collector Current (Continuous) IC 15 Amp
Collector Current (Peak) IC 20 Amp
Collector Junction Temperature TJ -65 to +110 °c
Collector Dissipation PD 106 Watts
(25'C Case Temp.)
Thermal Resistance °JC 0.8 °C/W
*To avoid excessive heating of collector junction, perform this test with a sweep method.
2-198
2N 1549 thru 2N 1560 (continued)
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristics apply to corresponding A type numbers also.
Characteristic Symbol Min Max Unit
Collector-Base Cutoff Current ICBO! rnA
(V CB = 25 V) 2N1549, 2N1553, 2N1557 - 3.0
(V CB = 40 V) 2N1550, 2N1554, 2N1558 - 3.0
(V CB = 55 V) 2N1551, 2N1555, 2N1559 - 3.0
(V CB = 65 V) 2N1552, 2N1556, 2N1560 - 3.0
Collector-Base Cutoff Current I CBO rnA
(V CB = 2 V) - 0.2
(V CB = 1/2 BV CES rating; TC = +90°C) - 20
Emitter-Base Cutoff Current rnA
lEBO
(V EB = 12 V) - 0.5
Collector-Emitter Breakdown Voltage BV CES volts
(I C = 300 mAl
2N1549, 2N1553, 2N1557 30 -
2N1550, 2N1554, 2N1558 45 -
2N1551, 2N1555, 2N1559 60 -
2N1552, 2N1556, 2N1560 75 -
Collector-Emitter Leakage Current ICEX rnA
(V BE = 1.0 V, VCE @ rated BV CBO) - 20
Collector-Emitter Breakdown Voltage* BV CEO * volts
(I C = 300 mA, IB = 0)
2N1549, 2N1553, 2N1557 20 -
2N1550, 2N1554, 2N1558 30 -
2N1551, 2N1555, 2N1559 40 -
2N1552, 2N1556, 2N1560 50 -
Collector-Base Breakdown Voltage BV CBO volts
(I C = 20 mAl
2N1549, 2N1553, 2N1557 40 -
2N1550, 2N1554, 2N1558 60 -
2N1551, 2N1555, 2N1559 80 -
2N1552, 2N1556, 2N1560 100 -
Current Gain hFEl -
(V CE = 2.0 V, IC = 10 A)
2N1549 - 2N1552 10 30
2N1553 - 2N1556 30 60
2N1557 - 2N1560 50 100
Base-Emitter Drive Voltage VBE volts
(IC = 10 A, IB = 1. 0 A)
2N1549 - 2N1552 - 1.3
2N1553 - 2N1556 - 1.0
2N1557 - 2N1560 - 0.85
Collector Saturation Voltage volts
VCE(sat)
(IC = 10 A, IB = 1. 0 A)
2N1549 - 2N1552 - 1.0
2N1553 - 2N1556 - 0.7
2N1557 - 2N1560 - O. 5
*To avoid excessive heating of collector junction, perform this test with a sweep method.
2-199
2N 1549 thru 2N 1560 (continued)
ELECTRICAL CHARACTERISTICS (continued)
Characteristic Symbol Min Max Unit
Transconductance gFE mhos
(V CE = 2.0 V, IC = 10 A)
2N1549 - 2N1552 6.0 18
2N1553 - 2N1556 8.0 30
2N1557 - 2N1560 12 40
Frequency Cutoff f
ae
Typ kHz
2N1549 - 2N1552 10
2N1553 - 2N1556 6.0
2N1557 - 2N1560 5.0
COLLECTOR CURRENT versus BASE CURRENT COLLECTOR CURRENT versus EMInER-BASE VOLTAGE
1· 14
12
J
Willi
~I
2N1557·2N1560
."...., ..-
12
2N1553-2N1556 ...
I- ~
'/
V
~
,. 10 /
V
I I
2N1553·2N1556 V
,.~ 10 I /
~
....
is i
If
Y V-
...
~
l!l
2N1557-2N15S0 /
/ /
1Ii V"
'"'"::><.>
'"e 6
2N1549-2N1552,
'"
::>
<.>
e'" 6
V/ J
'IV V
I
~ ,= -2V ~ vc,= -2V
0
<.>
~
4 /
Vc
0
<.>
,g 4
/ 1/ 2N1549-2N1552
J V It'
o o
JII ~~
o 0.2 0.4 0.6 O.B 1.0 o 0.2 0.4 O.S O.B 1.0
I"~ BASE CURRENT (AMPS) v", EMITTER-BASE VOLTAGE (VOLTS)
CURRENT GAIN versus COLLECTOR CURRENT BASE CURRENT versus EMInER-BASE VOLTAGE
140 1.0 r--..,--,-..,--,-..,--,--r--r-'-,----,
120
.... vc ,= - 2V
O.B t--t--+--t--+--t--+--t--+-I-+---l
K.,NI557.2NI5S0
100
z:
I'k ,.~
;;:
co
.... BO N ~ O.S t--+-+--+-+--+-+--+--t+--+----i
z
to- ~
r--... r-.. ~
~ ~53r?5SI
::>
::>
"' ..... r--- <.>
....
--
<.> 60
1 I"N... ~ 0.4 t--t--+--t--+--t--t-:-t-++-;---l
I I I I I l""'- I'-
40 - ' ...... ;:::: 2N1549-2N1552
'"
-
0.21--+---+
20 .......
r-
o
o 4 10 12 14 IS 0.2 0.4 O.S 0.8 1.0
'c, COLLECTOR CURRENT (AMPS) V", EMMITER-BASE VOLTAGE (VOLTS)
2-200
2N 1549 thru 2N 1560 (continued)
SAFE OPERATING AREAS
The Safe Operating Area Curves indicate Ic- (Duty cycle of the excursions make no significant
V CEl limits below which the device will not go into change in these safe areas.) To insure operation
secondary breakdown. Collector load lines for spe- below the maximum TJ, the power-temperature
cific circuits must fall within the applicable Safe derating curve must be observed for both steady
Area to avoid causing a collector-emitter short. state and pulse power conditions.
2N1549, 2N1553, 2N1557 2N1550, 2N1554, 2N1558 2N1551, 2N1555, 2N1559 2N1552, 2N1556, 2N1560
, ... ,m,
/lcMAXPEAM 5ms 'm. 1 Ie MAX PEAK ShlS 'm. /500,111 IcMA)(PEAK 'm. 500,lls1 /leMAKPEAK/Sms 50°111
:, \\I\. '<. 1\ i,\~50,ll5
OR LESS t\' \
."<
i'..
"< '\1\ lOOpS
DR LESS
I\~ K 1'\ r\f.-!~~~ \\\ ~ ~ «- 250,111
DR lESS
5 IcMAXCONT.
}'o. ~
'ciAXCjNT "-./ I>- "-
I"\. .......
/ I" 1\ I-\' IcMAXCONT.
t"-- l\
"""'CO'),7
\.
\
,
9O·WATT
POWER DISSIPATION
25°CCASETEMPEIlATUAE ~~ ,.U //1" i'- f'\
POWER DISSIPATION
tL11
POWERDISSIPAT10N
i'-i'- ~ ~JTT ~
POWER DISSIPATION
,........
t'"'
25°C CASE TEMPERATUAE 25°C CASE TEMPERATURE 25°CCASETEMP[RATURf
d,
• d,
d,
'.4
3 "
2 r - t-- T045V.3mA l ,,-
- T~"V.3.J -r- T075V,3mA
I-WITHBACKBI"APP\'~ ~~T~:AlK~ASAPPlItD
WJTHBACKBIASAPPL~ WITHBACKBIASAP~~~
rsYui . . ~I' -
" 10
IPULSjCURViLYl
15 20 25
COWCTOR.£MmEIt VOLTAGE MILTS}
30 350 5 10 Hi
tiUlS'I'Uj'"\"
20 25 30 .
3
COUECTOR.fMITTER VOLTAGE (VOl.TSl
"
f\.
45 50'
iPU'i"l'j 'l~
51015202530354045505560650
COLLECTOR.fMITTERVOLTAGEIVOlTS)
10 20 30 .. . . 50
COllECTOR.fMmER VOlTAGE MILTS}
70
POWER·TEMPERATURE DERATING CURVE
The maximum continuous power is
related to maximum junction tempera- 110
ture, by the thermal resistance fac - ~ 106
tor. For dc or frequencies below !IOO
25 Hz the transistor must be operated ~ 80
within the constant PI) = Vc x Ie ~ 60
""" ~
~
hyperbolic curve. This curve has a ~ 40
"-..
value of 106 watts at case tempera-
with a linear relation between the two
temperatures such that Pn allowable
~ 20
tures of 250 e and is 0 watts at 1100 e ,f
0 20 40 60
Te. CASE TEMPERATURE ('C)
80
'" .......
100 110
i'.....
=1100 - Tc
0.8
SWITCHING TIME MEASURING UNIT
TRANSISTOR
O.. lces C••dlll ••• •
. SWII::r~:~lm.s
Ie V R t..+1 I,
Zo = 50n In (Amp) (V.lts) (ohms) (,.s) (ps) ~;s)
2N1549 ·52 10 10 10 5 2 10
<RIO •• ·5. lu 10 30 10 5 25
2ovL... J
PULSE GENERATOR
. 2"1557 -60 10 10
Input Pulse Repetotton Rate _ 2 kHz,
Pulse Width = 50 "s
50 10 5 25
2-201
