BLW898 데이터 시트보기 (PDF) - Philips Electronics

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BLW898

UHF linear power transistor

Philips Electronics 

Philips Semiconductors

UHF linear power transistor

Product specification

BLW898

FEATURES

• Internal input matching for wideband operation and high

power gain

• Polysilicon emitter ballasting resistors for an optimum

temperature profile

• Gold metallization ensures excellent reliability.

APPLICATION

• Common emitter class-A operation in linear

transposers/transmitters (television) in the

470 to 860 MHz frequency band.

DESCRIPTION

NPN silicon planar transistor in a SOT171A 6-lead

rectangular flange package, with a ceramic cap. The

transistor delivers a Po sync = 3 W in class-A operation at

860 MHz and a supply voltage of 25 V.

PINNING SOT171A

PIN

DESCRIPTION

1

emitter

2

emitter

3

base

4

collector

5

emitter

6

emitter

handbook, halfpage 2 4 6

c

b

135

Top view

e

MAM141

Fig.1 Simplified outline and symbol.

QUICK REFERENCE DATA

RF performance at Th = 25 °C in a common emitter test circuit.

MODE OF

f

VCE

ICQ

OPERATION

(MHz)

(V)

(A)

CW class-A

860

25

1.1

Note

1. Three-tone test signal (−8, −16, and −10 dB); dim = −63 dB.

Po sync

(W)

≥3(1)

Gp

(dB)

≥9(1)

WARNING

Product and environmental safety - toxic materials

This product contains beryllium oxide. The product is entirely safe provided that the BeO disc is not damaged.

All persons who handle, use or dispose of this product should be aware of its nature and of the necessary safety

precautions. After use, dispose of as chemical or special waste according to the regulations applying at the location of

the user. It must never be thrown out with the general or domestic waste.

1996 Jul 16

2

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