NE68939 Datasheet, PDF (1/3 Pages) NEC – NPN SILICON EPITAXIAL TRANSISTOR

NEC'S NPN SILICON EPITAXIAL
TRANSISTOR
NE68939
FEATURES
• OUTPUT POWER AT 1dB COMPRESSION POINT:
24.5 dBm TYP @F = 1.9 GHZ, VCE = 3.6 V, Class AB,
Duty 1/8
• 4 PIN MINI MOLD PACKAGE: NE68939
DESCRIPTION
NEC's NE68939 is a low voltage, NPN Silicon Bipolar Tran-
sistor for pulsed power applications. The device is designed
to operate from a 3.6 V supply, and deliver over 1/4 watt of
power output at frequencies up to 2.0 GHZ with a 1:8 duty
cycle. These characteristics make it an ideal device for TX
driver stage in a 1.9 GHZ digital cordless telephone (DECT or
PHS). The part is supplied in a SOT-143 (SC-61) 4-pin Mini-
mold package and is available on tape and reel.
The NE68939 transistors are manufactured to NEC's strin-
gent quality assurance standards to ensure highest reliability
and consistent superior performance.
OUTLINE DIMENSIONS (Units in mm)
PACKAGE OUTLINE 39
+0.2
2.8 _-0.3
+0.2
1.5 _-0.1
+0.10
0.4 -0.05
(LEADS 2, 3, 4)
2.9 ± 0.2 0.95
2
0.85
3
1.9
1
+0.10
0.6 _-0.05
1.1+-00..21 _0.8
4
1) Collector
2) Emitter
3) Base
4) Emitter
0.16
+0.10
-0.06
5˚
5˚
0 to 0.1
ELECTRICAL CHARACTERISTICS (TA = 25 °C)
SYMBOLS
ICBO
IEBO
hFE
P-1
Gp
η_C
TON
PART NUMBER
PACKAGE CODE
PARAMETERS
Collector Cutoff Current, VCB = 5 V, IE = 0
Emitter Cutoff Current, VEB = 1 V, IC = 0
DC Current Gain, VCE = 3.6 V, IC = 100 mA
Output Power
Power Gain
Collector Efficiency
VCE = 3.6 V, f = 1.9 GHZ
ICq = 2 mA (Class AB)
Duty 1/8
Maximum Device On Time
UNITS
µA
µA
dBm
dB
%
MS
NE68939
39
MIN
TYP
MAX
2.5
2.5
30
24.5
6.5
8
50
62
10.0
California Eastern Laboratories