BLW81
BLW81 is UHF power transistor manufactured by NXP Semiconductors.
DISCRETE SEMICONDUCTORS
DATA SHEET
BLW81 UHF power transistor
Product specification
March 1993
Philips Semiconductors
UHF power transistor
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.
The transistor is housed in a 1⁄4" capstan envelope with a ceramic cap.
Product specification
QUICK REFERENCE DATA R.F. performance up to Th = 25 °C in an unneutralized mon-emitter class-B circuit
MODE OF OPERATION
VCE V f MHz
PL W
Gp d B
η % c.w. 12,5 470 10 > 6,0 > 60 c.w. 12,5 175 10 typ. 13,5 typ. 60 zi Ω
1,3 + j2,5 1,2
- j0,6
YL m S
- j66 140
- j80
PIN CONFIGURATION handbook, halfpage
4 1
PINNING
- SOT122A.
PIN DESCRIPTION 1 collector 2 emitter 3 base 4 emitter
Top view
MBK187
Fig.1 Simplified outline....