August 1986

11

Philips Semiconductors

Product specification

HF/VHF power transistor

BLW77

Fig.15 R.F. SOAR; s.s.b. class-AB operation;

The graph shows the permissible output power under nominal

conditions (VSWR = 1) as a function of the expected VSWR during

short-time mismatch conditions with heatsink temperatures as

parameter.

handbook, halfpage

250

100

MGP532

110

150

200

PLnom

(W P.E.P.)

(VSWR = 1)

VSWR

90

°C

Th =

50

°C

70

°C