August 1986

2

Philips Semiconductors

Product specification

VHF power transistor

BLV21

DESCRIPTION

N-P-N silicon planar epitaxial

transistor intended for use in class-A,

B and C operated h.f. and v.h.f.

transmitters with a nominal supply

voltage of 28 V. The transistor is

resistance stabilized and is

guaranteed to withstand severe load

mismatch conditions.

It has a 3/8" flange envelope with a

ceramic cap. All leads are isolated

from the flange.

QUICK REFERENCE DATA

MODE OF OPERATION

V

f

MHz

W

dB

η

%

Ω

mS

c.w.

28

175

15

> 10

> 65

1,4 + j1,85

33

− j27,5

PIN CONFIGURATION

Fig.1 Simplified outline, SOT123.

handbook, halfpage

1

23

4

MSB057

PINNING

PIN

DESCRIPTION

1

collector

2

emitter

3

base

4

emitter

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.