August 1986

3

Philips Semiconductors

Product specification

UHF linear power transistor

BLW98

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

Collector-emitter voltage

max.

50 V

open base

max.

27 V

Emitter-base voltage (open collector)

max.

3,5 V

Collector current

d.c.

max.

2 A

(peak value); f

> 1 MHz

max.

4 A

max.

21,5 W

Storage temperature

−65 to +150 °C

Operating junction temperature

max.

200

°C

Fig.2 D.C. SOAR.

(1) Second breakdown limit (independent of temperature).

handbook, halfpage

10

IC

(A)

VCE (V)

1

MGP717

110

Th = 70 °C

Tmb = 25 °C

(1)

Fig.3 Power derating curve vs. temperature.

handbook, halfpage

0

40

30

20

10

50

100

MGP718

Ptot

(W)

Th (°C)

THERMAL RESISTANCE

From junction to mounting base

=

5,45 K/W

From mounting base to heatsink

=

0,6 K/W