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2N 178 (GERMANIUM)
2N554
2N555
~ PNP germanium power transistor for non-critical power amplifier and power switching applications re-
CASE 11 (TO-3)
quiring economical components.
MAXIMUM RATINGS
Rating
Symbol
2N:178 2N554 2N555 Unit
Collector-Emitter Voltage
Collector-Base Voltage Emitter-Base Voltage Collector Current
Total Device ,Dissipation @ TC = BO°C
Operating and Storage Junction Temperature Range
VCER VCB VEB
Ie
PD TJ , Tstg
30
16
30
Vdc
30
15
30
Vdc
20
15
15
Vdc
3.0
Adc
10
Watts
-40 to +90
°c
50
POWER-TEMPERATURE DERATING CURVE
1.
1
""' "-
,1' r
o
:0
IU
I
10 o
TC. CASE TEMPERATURE (OC)
2N178, 2N555
SAFE OPERATING AREAS.
•5
_An
•5
•
POWER DISSIPATION AT 3D~ TEMPERATURE
•
2N554
3 2
I
........ ' H ZN17.
2N178 Datasheet
