blw81 NXP Semiconductors, blw81 Datasheet - Page 2

• Manufacturer Part Number: blw81
• Description: Uhf Power Transistor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DESCRIPTION
N-P-N silicon planar epitaxial
transistor intended for transmitting
applications in class-A, B or C in the
u.h.f. and v.h.f. range for a nominal
supply voltages up to 13,5 V.
The resistance stabilization of the
transistor provides protection against
device damage at severe load
mismatch conditions.
QUICK REFERENCE DATA
R.F. performance up to T
PIN CONFIGURATION
PRODUCT SAFETY This device incorporates beryllium oxide, the dust of which is toxic. The device is entirely
safe provided that the BeO disc is not damaged.
March 1993
MODE OF OPERATION
UHF power transistor
handbook, halfpage
c.w.
c.w.
Fig.1 Simplified outline. SOT122A.
h
= 25 C in an unneutralized common-emitter class-B circuit
Top view
1
12,5
12,5
V
V
CE
4
The transistor is housed in a
capstan envelope with a ceramic cap.
2
MBK187
MHz
470
175
3
f
P
10
10
W
2
L
typ. 13,5
1
G
dB
4
p
6,0
"
typ. 60
PINNING - SOT122A.
%
PIN
60
1
2
3
4
collector
emitter
base
emitter
1,2
1,3
Product specification
z
DESCRIPTION
i
j2,5
j0,6
BLW81
150
140
mS
Y
L
j66
j80