2N3279 thru 2N3282 (GERMANIUM)
CASE 20
(10·72)
PNP germanium epitaxial mesa transistors for highgain, low-noise amplif...
2N3279 thru 2N3282 (GERMANIUM)
CASE 20
(10·72)
PNP germanium epitaxial mesa
transistors for highgain, low-noise amplifier, oscillator, mixer and frequency multiplier applications.
MAXIMUM RATINGS
Rating
Collector-Emitter Voltage
Collector-Emitter Voltage
Collector-Base Voltage
Emitter-Base Voltage
Collector Current
Total Device Dissipation @ TA = 25° C Derate above 25°C
Ope-rating and Storage Junction Temperature Range
Symbol
VCEO VCES VCB VEB
IC PD
TJ , Tstg
2N3279 2N3280
20
2N3281 2N3282
15
30
30
1.0 0.5
50
100 1. 33
-65 to +100
Unit
Vdc Vdc Vdc
mAdc mW mW/oC °c
POWER GAIN AND NOISE FIGURE Jersus COllECTOR CURRENT
_MHz
25
~ 20 1-::;;_=f!5e;!!";:;:;;l~~lb~~~
i 15~~~~~-4~~-4~~~~~~
i 10
f J
Ii
46 I.. COlLECTOR CURRENT (IlIA)
NEUTRALIZED POWER GAIN AND NOISE FIGURE versus
FREQUENCY
!50 20
COMMON EMITlU V.. = 10 V, Ie =3 IlIA
........
_40 III
............
~.
i 30 I"'-.... r..
120
J
-'10 -a. ,..:~ !If
o
............ J;
""" _/ r-....
.- r.. .......... o
10 20 ...
