August 1986

8

Philips Semiconductors

Product specification

VHF power transistor

BLY87C

Fig.9

Typical values; f = 175 MHz;

handbook, halfpage

0

0

0.5

1.5

15

5

10

MGP826

1

PL

(W)

PS (W)

Th = 25 °C

Th = 70 °C

Fig.10 Typical values; f = 175 MHz;

handbook, halfpage

2.5

12.5

30

10

0

20

MGP827

6.5

4.5

8.5

10.5

Gp

(dB)

80

40

20

60

η

(%)

PL (W)

Th = 25 °C

Th = 25 °C

70

°C

70

°C

η

Gp

Fig.11 R.F. SOAR (short-time operation during

handbook, halfpage

1

1.1

1.3

10

7

MGP828

1.2

10

20

50

8

PLnom

(W)

VSWR = 1

9

VCE

VCEnom

6

VSWR =

PS

PSnom

Note to Fig.11:

The transistor has been developed for use with

unstabilized supply voltages. As the output power and

drive power increase with the supply voltage, the nominal

output power must be derated in accordance with the

graph for safe operation at supply voltages other than the

nominal. The graph shows the permissible output power

under nominal conditions (VSWR = 1), as a function of the

expected supply over-voltage ratio with VSWR as

parameter.

The graph applies to the situation in which the drive

ratio.