2N838 (GERMANIUM)
"CASE 22 (TO·18) Collector connected to CBse
PNP germanium epitaxial mesa transistor for highspeed s...
2N838 (GERMANIUM)
"CASE 22 (TO·18) Collector connected to CBse
PNP germanium epitaxial mesa
transistor for highspeed switching applications.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector-Base Voltage Collector-Emitter Voltage Collector-Emitter Voltage
. VCB
30 Vdc
VCES 30 Vdc VCEX 15 Vdc
Emitter-Base Boltage Collector Current (Continuous) Junction Temperature Storage Temperature
Device Dissipation @TA =250 C
(Derate 2mW/oC above 250 C)
VEB 2.5 Vdc
Ie 100 mAdc TJ +100 °c
Tstg
-65 to+ 100
°c
PD 1.50 mW
2.0 mW/OC
FIGURE 1 - SWITCHING TIME TEST CIRCUIT
Ie.
=GENERATOR Z... 50!!
Vee = -3V
-=INPUT PULSE t, = t. 1 ns
1'1 I"
INPUT PULSE WIDTH = 100 ns
(5q% DUTY CYCLE)
275 !!
= -IDmAdc
= -3.3mAdc = +3.3mAdc
SCOPE
liN:=:: 1 Megn
CIN :::;; 20 pF
t.::::: 1 ns
VlEI01 = +4Vdc
80
.~s
~
~ '~"
'-'
'~"
is
'-' ~
FIGURE 2 - AREA OF PERMISSIBLE LOAD LOCI
VeE' COLLECTOR·EMITTER VOLTAGE (VOLTS)
2-107
2N838 (continued)
ELECTRICAL CHARACTERISTICS (TA = 25°C unless ot...
